Technical Application Papers No.9 Bus communication with ABB circuit-breakers

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1 Techical Applicatio Papers No.9 Bus commuicatio with ABB circuit-breakers

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3 Techical Applicatio Papers Idex 1 Itroductio Digital commuicatio Commuicatio protocols Physical layer RS-232 ad RS-485 iterfaces Data lik layer Applicatio layer Compatibility betwee the layers Supervisio of electrical distributio plats Supervisio with ABB SACE circuit-breakers ABB solutio for bus commuicatio Emax air circuit-breakers Emax X1 air-circuit breakers ad Tmax T7 moulded-case circuit-breakers Moulded-case circuit-breakers Tmax T4-T5-T Moulded-case circuit-breakers SACE Tmax XT2-XT SD030DX solutio for the circuit-breakers without Modbus RTU Frot pael iterface HMI ANR etwork aalyzers Temperature cotrol uits Electroic eergy meters Serial coverter RS485/RS ABB circuit-breakers i Etheret TCP/IP etworks Etheret IP protocol TCP protocol Etheret idustrial protocols Modbus/TCP protocol Serial Modbus-Modbus/TCP coversio SD-GEM gateway Applicatio examples Supervisio of protectios ad circuit-breaker switchig Allocatio of the eergy costs iside a plat Descriptio of the distributio ad commuicatio system Fuctioig Maagemet of priority ad o-prioritary loads Network Modbus RS-485 (Rules for a correct wirig) Modbus RTU system fuctioig Ekip Coect software Scaig of the system bus Commuicatio with a sigle device Example of product selectio for supervisio ad remote cotrol ABB circuit-breakers i Profibus DP ad DeviceNet fieldbus Emax air circuit-breakers E1 E6, Emax X1 air circuit-breakers ad Tmax T7/T7M mouldedcase circuit-breakers Moulded-case circuit-breakers Tmax T4-T5-T Moulded-case circuit-breakers SACE Tmax XT2-XT Measurig istrumets DMTME multimeters...61 Aex A: Measures, data ad commads for supervisio ad remote cotrol Aex B: Electrical characteristics of the auxiliary power supply Aex C: The commuicatio modules Aex D: The measurig modules Aex E: AUX-E auxiliary cotacts ad MOE-E motor operator for Tmax T4-T5-T Aex F: MOE-E motor operator for SACE Tmax XT2-XT Aex G: The parity bit

4 Techical Applicatio Papers 1 Itroductio 1 Itroductio Due to the ever growig use of automatio ad supervisio systems for idustrial processes, for a better maagemet of the electrical ad techological plats, circuit-breaker maufacturers have bee drive to implemet - o the electroic trip uits - the dialogue iterfaces for bus commuicatio with cotrol devices such as PLC, PC or SCADA. I this way, automatic circuit-breakers are used ot oly for switchig ad protectio but also for the supervisio ad cotrol of electrical distributio plats. This Techical Applicatio Paper has the mai purpose of itroducig the reader to the basic cocepts of: - commuicatio etworks ad protocols - dialogue betwee microprocessor-based itelliget devices ad describig the mai fuctios of the electroic trip uits which allow ABB circuit-breakers to commuicate via bus. I particular, this documet is aimed at givig the essetial iformatio for the correct choice of the trip uits, of the commuicatio modules, of the accessories ad of the software ecessary to itegrate ABB circuit-breakers i the supervisio systems of electrical ad techological istallatios (e.g. maufacturig lies of idustrial processes). This documet is divided ito five mai parts: - itroductio to digital commuicatio ad basic cocepts regardig commuicatio protocols; - supervisio of electrical distributio plats; - ABB solutio for field bus commuicatio (Modbus RTU, Profibus DP ad DeviceNet) ad the rules for the arragemet of the Modbus RS-485 etwork; - frot pael iterface HMI030; - solutio to itegrate ABB circuit-breakers ito the Etheret etworks with Modbus/TCP protocol; - some applicatio examples regardig ABB SACE circuit-breakers used for the automated maagemet of electrical distributio plats. Seve aexes are icluded i this documet. Aex A cotais the tables with the mai iformatio, the measures ad the alarms put at disposal by the trip uits. The other Aexes deal i details with the fuctioal ad applicative aspects of the products ad of the accessories (commuicatio modules, measurig modules, auxiliary cotacts i electroic versio, coectors ad motor operators) ecessary for the bus commuicatio fuctios of ABB automatic circuit-breakers. I particular, Aex C icludes the idicatios to coect the circuitbreakers to a Modbus RS-485 etwork. 2

5 2 Digital commuicatio Digital commuicatio is a data exchage (i biary form, that is represeted by a strig of bits 1 ) betwee itelliget electroic devices provided with suitable circuits ad iterfaces. The commuicatio usually occurs serially: the bits which costitute a message or a data packet are trasmitted oe after the other over the same trasmissio chael (physical medium). 1 A bit is the basic iformatio uit maaged by a computer ad correspods to the state of a physical device, which is represeted either as 0 or as 1. A combiatio of bits may idicate a alphabetical character, a umeral, give a sigal or carry out switchig or aother fuctio. - Rig etwork Rig etworks are costituted by a series of odes (i Figure 2 these are represeted by persoal computers) itercoected to get a closed rig. Figure 2: Rig etwork 2 Digital commuicatio Figure 1: Bit sequece Receiver Trasmitter Bit The apparatus which have to exchage data ad iformatio are liked together i a commuicatio etwork. A etwork is usually costituted by odes itercoected with commuicatio lies: - Star etwork Star etworks are based o a cetral ode to which all the other peripheral odes are coected. Figure 3: Star etwork - the ode (a itelliget device capable of dialogue with other devices) is the poit of data trasmissio ad/or receptio; - the commuicatio lie is the likig elemet betwee two odes ad represets the direct path followed by the iformatio to be trasferred betwee the two odes; i practice it is the physical medium (coaxial cable, twisted pair cable, optical fibers, ifrared rays) through which data ad iformatio are trasmitted. The mai commuicatio etworks ca be classified accordig to the followig topologies: - Bus etwork The bus structure is based o a trasmittig medium (usually a twisted cable or a coaxial cable) i commo for all the odes which thus result to be coected i parallel. Figure 4: Bus etwork 3

6 Techical Applicatio Papers 2 Digital commuicatio These are some examples of process maagemet where a dialogue is required betwee the devices i a commuicatio etwork: 1) data iterchage betwee the persoal computers, i a compay or a firm, liked through a LAN etwork 2. Figure 5: Example of LAN etwork The protocols used to make the differet devices i idustrial applicatios commuicate are very umerous ad vary accordig to the commuicatio requiremets of each applicatio; these may be: - the quatity of data to trasmit; - the umber of ivolved devices; - the characteristics of the eviromet where the commuicatio takes place; - the costraits of time; - the criticality of the data to be set; - the possibility, or ot, to correct data trasmissio errors; ad more. There is also a further wide variety of protocols used to put ito commuicatio data processig apparatus, such as the computers ad their peripherals. 2) data ad commads trasceivig betwee a supervisio system ad the field devices (sesors ad actuators) of a automatio system, for the maagemet of a idustrial process. Figure 6: Example of a supervisio system for idustrial process maagemet I the followig chapters these protocols are ot dealt with, but the discussio is limited to a descriptio of the protocols dedicated to idustrial commuicatio i fieldbuses, that is, those etworks used to exchage iformatio betwee a cotrol system ad the field devices (the sesors ad the actuators provided with a advaced commuicatio iterface directly iteractig with the physical process to be kept uder cotrol). I particular, the cocepts of commuicatio, supervisio ad cotrol shall be applied to the maagemet of the low voltage electrical eergy distributio istallatios. 2.1 Commuicatio protocols Actuator Sesor Actuator Sesor To maage the data traffic over the etwork ad to allow uderstadig betwee two commuicatig devices, a commuicatio protocol is ecessary. The commuicatio protocol is the whole of rules ad behaviors which two elemets must comply with to iterchage iformatio; it is a defiite covetio associated to the data exchaged betwee the commuicatio parters. 2 LAN (Local Area Network): local etwork (e.g.: Etheret) likig together persoal computers ad termial statios physically ear, for istace located i the same office or i the same buildig. The protocols curretly used i idustrial commuicatios are very complex. I order to simplify their descriptio, it is usual to separate the operatio levels. I ay protocol three levels ca be distiguished: a physical layer, a data lik layer ad a applicatio layer. Each layer refers to a fuctioal aspect of commuicatios ad i particular: - the physical layer specifies the coectio betwee the differet devices from the poit of view of the hardware ad describes the electrical sigals used to trasmit the bits from oe device to the other; for istace, it describes the electrical coectios ad the wirig systems, the voltages ad the currets used to represet the bits 1 ad 0 ad their duratio. I the idustrial protocols, the physical layer is geerally oe of the stadard iterfaces type RS-232, RS-485, RS-422 etc.; - the data lik layer describes how the bits are grouped 4

7 ito characters ad these ito packets, ad how ay error is detected ad possibly corrected. If ecessary, it defies also the priorities to comply with to gai access to the trasmissio medium; - the applicatio layer describes what are the trasmitted data ad what is their meaig with referece to the process uder cotrol. It is the layer i which it is specified which data shall be cotaied i the data packets trasmitted ad received ad how they are used. Geerally speakig, these layers are idepedet oe from the other; by applyig this cocept of layers to the commuicatio betwee people, it is possible to agree o talkig either o the phoe or o trasceivers (physical layer), o speakig Eglish or Frech (data lik layer) ad o the subject matter of the coversatio (applicatio layer) The physical layer Whe takig ito cosideratio the physical layer it is possible to distiguish betwee: - wireless systems, which use as physical medium radio waves, ifrared rays or lumious sigals propagated i free space; - wired or cabled systems, whose sigals are trasmitted over cables (or optical fibers). Amog the latter there are: - poit-to-poit cablig systems, i which each sectio of cable liks two devices ad is used exclusively for the commuicatio betwee them (a typical example is represeted by the commuicatio PC-priter). This commuicatio ca be full-duplex type, whe the two devices ca trasmit simultaeously, or halfduplex, if they ca trasmit oly alterately; 2 Digital commuicatio To get a successful commuicatio betwee two etities, all the layers take ito cosideratio shall correspod to each other; for istace, whe usig the telephoe we could ot talk to whom is usig a radio, we could ot uderstad each other if we use differet laguages, etc. - multipoit (called also multidrop) cablig systems i which may devices share i parallel the same commuicatio cable. Amog multipoit systems, particular importace have those with bus coectio, where a mai cable (backboe) without stubs or with very short stubs coects i parallel all the cocered devices. Figure 7: Impossibility of commuicatio betwee trasceiver ad telephoe Figure 8: Multi-drop system with bus type coectio Device 1 Stub Backboe Device 2 Device 3 Device 4 The physical layer iterfaces mostly used i idustrial etworks are RS-232 for poit-to-poit coectios ad RS-485 for multipoit coectios. Without aimig at a thorough descriptio of the existig protocols, we wish to poit out some of the characteristics of the commuicatio system through a brief descriptio of the three metioed layers. 5

8 Techical Applicatio Papers 2 Digital commuicatio RS-232 ad RS-485 iterface Whe speakig of physical layer we have: The RS-232 iterface, which is so commo i persoal computers to be kow as serial port, is a asychroous poit-to-poit serial commuicatio system allowig full-duplex operatio. Figure 9: RS pi serial coector - full duplex meas that the devices ca trasmit ad receive the data simultaeously. Full duplex operatio is possible because there are two separated electrical coectios for the both directios i which the data ca flow. The bits are trasmitted as voltage values from the trasmissio termial (Tx) of oe device to the receivig termial (Rx) of the other device. These voltages are referred to a commo groud coductor coected to the correspodig GND pi of the two devices. Figure 12: Basic liks for the commuicatio betwee two devices with RS-232 iterface. Figure 10: RS pi serial cable Coector of device 1 Coector of device 2 Rx1 Tx1 GND1 GND2 Tx2 Rx2 Here is a easy descriptio of its features: - serial meas that the bits are trasmitted oe after the other; - asychroous meas that each device ca sed oly oe character or byte separated by log or short itervals of time as eeded; - poit-to-poit meas that oly two devices ca be itercoected accordig to this mode. Whe usig the RS-232 iterface to coect more tha two devices, each pair shall have at its disposal a idepedet chael with two dedicated ports. Figure 11: Poit-to-poit coectio betwee two PCs Therefore, for the coectio, miimum three wires (Tx, Rx ad GND) are ecessary: it is possible to use more liks to regulate the data flow (e.g. to sigal whe a device is ready to trasmit or to receive). These operatios, which costitute the hadshakig ad flow cotrol 3 processes are ot the subject of this techical paper. Each character flowig over the serial cable is costituted by: - oe or more start bits to iform the receiver about the arrival of a ew character (beig RS-232 a asychroous iterface, it is impossible, for the receiver, to kow whe a character has bee trasmitted ad therefore it is ecessary to sigal i advace the start of the frame); - a certai umber of data bits (e.g. 8); RS Flow cotrol: method of cotrollig the flow of iformatio. Hadshakig: exchage of pre-established sigals betwee two devices so that a correct commuicatio is achieved. Thaks to this sigal exchage, the devices iform that they have some data to trasmit or that they are ready to receive data. 6

9 - a optioal parity bit, used to detect whether amog the trasmitted bits there is a wrog oe (i positive case the whole character is cosidered ot valid ad discarded). The parity bit, if used, ca be cofigured i eve or odd mode; - oe or more stop bits to sigal the ed of the trasmissio. All the listed bits have the same legth: the cofiguratio of the serial iterface is such as to trasmit a defiite umber of bits per secod (bps or baud). The trasmissio speeds are stadardized ad by traditio multiples of 300 bits per secod are used. For istace, a device could trasmit at 9600, or bauds, that is bits per secod. For a correct commuicatio it is ecessary that the two devices use the same settigs: baud rate (data trasmissio speed), umber of data bits, start bits ad stop bits, presece or ot of the parity bit ad, if used, the mode (eve or odd). If this does ot occur, o character is recogized correctly ad cosequetly the trasmissio of data is impossible. For istace, i the bit frame of Figure 13, it is possible to idetify: - 1 start bit - 8 bits (b0.b7) costitutig the character (the trasmitted data) - 1 stop bit. Figure 13: 8-bit character 1 Start 0 The RS-485 iterface differs from RS-232 i the electrical ad coectio characteristics. Its mai advatages are: the possibility of implemetig multidrop 4 commuicatio liks, that is betwee more tha two devices (see Figure 14) ad the best immuity from electrical disturbaces. Figure 14: Multidrop system with bus coectio o RS-485 Node 1 b0 b1 b2 b3 b4 b5 b6 b7 R Data - Data + Termial resistor R Stop Node N These features make of RS-485 the most used iterface i idustrial eviromet, from the first versios of Modbus (i the Sixties) to the more moder Modbus RTU, Profibus-DP, DeviceNet, CANope ad As-Iterface. With RS-485, all the devices are coected i parallel o a sigle bus costituted by two coectios, called: Data+ ad Data-, or A ad B or also Data1 ad Data2, accordig to the differet maufacturers of devices. The used sigals are differetial: that is the bits are represeted by the voltage differece betwee Data+ ad Data-. The coductors are twisted ad kept ear oe to the other so that the electrical disturbaces affect them with equal itesity ad the voltage differece is altered as less as possible. Whe a device is ot trasmittig, it prepares for receptio, showig a high impedace o the commuicatio port. The Stadard RS-485 (EIA/TIA-485) 5 sets some limits o the iput impedace ad defies some requiremets for the curret/power that each device shall be able to trasfer o the lie whe it coveys data. I particular, i compliace with the prescriptios of the referece Stadard, a correct data trasmissio is possible if, at the most, 31 devices i receptio mode are coected o the lie. As a cosequece, i compliace with the Stadard prescriptios, RS-485 guaratees that the commuicatio ca be carried out correctly with maximum 32 devices liked to the bus ad that i each commuicatio cycle, oe device is i trasmissio mode ad the other 31 are i receptio mode. I fact, sice all the devices are coected i parallel o a sigle bus, oly oe of them ca trasmit at a time, otherwise the sigals overlap thus becomig urecogizable. The iterface RS-485 does ot iclude ay mechaism aimed at defiig which device has the permissio to trasmit; this task is demaded to the higher layers of the protocol used. The structure of each trasmitted character, its duratio ad the possibility of trasmissio cofiguratio are the same as previously see for the serial iterface RS-232; for istace, there ca be a data trasfer set at a speed of baud, with 1 start bit, 1 stop bit ad 1 parity bit used e.g. i eve mode. All the devices coected to the same bus must have the same settigs i order to itercommuicate. I idustrial automatio ad eergy distributio, the most part of the commuicatio etworks are realized with bus techology ad the most used physical layer is the iterface RS Digital commuicatio Node 2 Node N-1 4 I priciple, i a multidrop coectio, the devices are liked i parallel to a mai cable. 5 EIA/TIA-485 Differetial Data Trasmissio System Basics is the documet which describes the Stadard RS-485, which represets the mai referece for all the maufacturers. 7

10 Techical Applicatio Papers 2 Digital commuicatio Data lik layer As regards the data lik layer, we speak of master-slave protocols whe oe of the devices (the master) has the task of cotrollig ad maagig the commuicatio with all the others (slaves). Istead, we speak of peerto-peer systems whe such hierarchy does ot exist ad the devices gai access to the commuicatio medium equally (i such case the protocol icludes the procedures to maage the turs ad the access priorities to the commuicato medium, a typical example is Etheret). Amog the most commo commuicatio protocols there are: - Modbus RTU, the most commo coectio protocol for electroic-idustrial devices; - ProfiBus-DP, used for field commuicatio with itelliget sesors ad actuators, geerally with fast ad cyclic data exchage betwee field apparatus ad cotrollers; - DeviceNet, also used to iterface apparatus ad cotrollers (PC, PLC); - AS-i, for the commuicatio with very simple sesors, such as limit switches, or switchig devices (e.g. push buttos) Applicatio layer The applicatio layer gives a meaig to the trasferred data, that is, it associates commads (e.g.: ope/close the circuit-breaker) or a umber (e.g.: voltage values) with the data i biary format iterchaged by the devices over the commuicatio etwork. For istace, suppose to use the Modbus protocol for remote readig of the curret values stored i a Tmax circuit-breaker equipped with PR222DS/PD trip uit. I the PR222DS/PD, the currets are stored i the registers startig from the umber Figure 15: Registers of PR222DS/PD with ru time curret values No. of register Cotet of the register Meaig of the cotet IL1 Curret i the phase 1 [A] IL2 Curret i the phase 2 [A] IL3 Curret i the phase 3 [A] ILN Curret i the eutral [A] Whe the master uit (e.g. a PC) wats to read the curret values, it seds to the circuit-breaker a message cotaiig: - the umbers of the registers where the requested data shall be read (the measured quatities are associated to the register umber; i the example, the registers from o to are give, which cotai the curret values); - the type of operatio to be performed (e.g.: readig the values cotaied i the register). The slave uit (i this specific case the circuit-breaker) aswers by sedig the requested values to the master. The, such values are show to the operator i a format which ca be uderstood through the user iterfaces of the software ad of the supervisio applicatio programs, which facilitate the presetatio of the iformatio ad of the data from the cotrolled process. Each trip uit stores the values of the quatities ad of the parameters i dedicated registers; these registers ca be readig oly (e.g. register of curret measures) or readig ad writig (e.g. register for the settig of the curves ad of the trip thresholds of the protectios) 6. 6 For further iformatio about the structure of the Modbus logical map of the ABB trip uits equipped with commuicatio iterface referece must be made to the followig documets: - Modbus System Iterface for protectio relays PR122/P ad PR123/P + commuicatio module PR120/D-M, mouted o CB New Emax; Protectio relays PR332/P ad PR333/P + commuicatio module PR330/D-M, mouted o CB Emax X1, Tmax T7 ad Tmax T8 (documet code: 1SDH000556R0001) - Emax DC PR122DC-PR123DC + PR120/D-M Modbus System Iterface (documet code: 1SDH000841R0001) - Emax VF PR122/VF + PR120/D-M Modbus System Iterface (documet code: 1SDH000922R0001) - Istructio maual PR223EF Modbus System Iterface (documet code: 1SDH000566R0001) - Istructio maual PR223DS Modbus System Iterface (documet code: 1SDH000658R0001) - Istructio maual PR222DS/PD Modbus System Iterface (documet code: 1SDH000600R0001). - The Modbus map (or memory map) is defied by the maufacturer, who decides what register is to be associated to the data read by the circuit-breaker, ad moreover chooses which of the read parameters ad which settigs of the circuit-breaker ca be trasmitted via serial commuicatio 8

11 2.1.4 Compatibility betwee the protocol layers I idustrial commuicatio, the differet devices iterchagig iformatio must use the same protocols for all the layers ivolved. For istace, as illustrated i the followig chapters, ABB SACE circuit-breakers use protocol Modbus RTU over RS-485. However there are also idustrial devices PROTOCOL LAYERS PROTOCOL OF THE DEVICE A which use Modbus RTU over RS-232 or Profibus-DP over RS-485. Some of the above metioed combiatios are show i the table below highlightig which are the fuctioig ad ot-fuctioig oes. PROTOCOL OF THE DEVICE B Logical layer Modbus RTU Modbus RTU Physical layer RS-485 RS-485 Logical layer Modbus RTU Modbus RTU Physical layer RS-232 RS-232 Logical layer Profibus-DP Profibus-DP Physical layer RS-485 RS-485 Logical layer Profibus-DP Modbus RTU Physical layer RS-485 RS-485 COMMUNICATION/DIALOGUE YES COMMUNICATION Compatibility o all the layers of the protocol YES COMMUNICATION Compatibility o all the layers of the protocol YES COMMUNICATION Compatibility o all the layers of the protocol NO COMMUNICATION Icompatibility o the logical layer of the protocol 2 Digital commuicatio Logical layer Modbus RTU Modbus RTU NO COMMUNICATION Physical layer RS-485 RS-232 Icompatibility o the physical layer of the protocol Logical layer Profibus-DP Modbus RTU Physical layer RS-485 RS-232 Note: With logical layer the combiatio of lik layer + applicatio layer is meat. NO COMMUNICATION Icompatibility o all the layers of the protocol 9

12 Techical Applicatio Papers 3 Supervisio of electrical distributio plats 3 Supervisio of electrical distributio plats A low voltage electrical distributio plat ca be cosidered as a idustrial process orieted towards the distributio of electrical eergy, ad therefore, it also eeds a supervisio ad cotrol system to icrease reliability ad improve maagig of the istallatio. From a poit of view aimed at the itegratio betwee traditioal istallatio techology ad cotrol systems, with the aim of cetrally ad automatically maagig, cotrollig, ad moitorig civil ad idustrial plats, it is possible to cosider the electrical istallatio as iflueced by two flows: Figure 16: Represetatio of the mai flow ad of the digital flow - a mai flow (eergy flow) costituted by the power ad the eergy which, through the lie coductors ad the switchig ad protectio apparatus, is delivered to the users ad the loads of a plat; - a digital flow costituted by all the iformatio, the data ad the commads useful for the cotrol ad maagemet of the plat. It is the supervisio system which maages the digital flow passig over the commuicatio etwork. Mai flow Digital flow 10

13 Accordig to the extet ad the complexity of the istallatios to be maaged, it is possible to implemet supervisio systems with differet architectures, from the simplest (two-layer architecture) to the most complex oes (multi-layer architecture). I this documet, for a simple treatmet of the subject, the systems with two-level architecture suitable for the maagemet of low ad medium distributio plats are dealt with. I this type of architecture two levels are distiguishable: 1) the cotrol level: costituted by the supervisio, cotrol ad data acquisitio system (SCADA: Supervisory Cotrol ad Data Acquisitio). I the most simple applicatios this level comprises a computer o which the software programmes for data acquisitio, plat cotrol or supervisio are istalled. It is at this level that the data trasmitted by the sesors are acquired, displayed ad processed ad the commads are set to the actuators. I this way, from a sigle work statio, a operator ca moitor the state of the whole plat ad carry out the ecessary operatios to guaratee its efficiecy ad proper fuctioig. More i geeral, i the applicatios which combie the maagemet of the electrical distributio plat ad the process maagemet, the cotrol level is costituted by the cotrol processor which supervises the automatio system of the whole idustrial process; 2) the field level: costituted by the field devices equipped with commuicatio iterfaces (sesors, actuators ad protectio circuit-breakers fitted out with suitable electroic trip uits) which are istalled i the electrical plat ad iteract directly with it coectig it with the cotrol level. The mai fuctios of the field level are: 1) trasmittig the plat data (e.g. currets, voltages, eergies, state of the circuit-breakers, etc.) to the cotrol level 2) actuatig the commads (e.g. opeig/closig of the circuit-breakers) received by the cotrol level. The two levels commuicate through a bus etwork. The iformatio (e.g. the measured values) trasmitted from the field level to the cotrol level ad the commads, which travel i the opposite directio, costitute the iformative flow which rus o the bus. 3 Supervisio of electrical distributio plats Figure 17: Supervisio system with two-level architecture Master Cotrol level Bus etwork Data Commads Field level Actuator Slave Sesor Slave ACB Slave ACB Slave MCCB Slave 11

14 Techical Applicatio Papers 3 Supervisio of electrical distributio plats 3.1 Supervisio with ABB SACE circuit-breakers I the field of eergy distributio, commuicatio ad dialogue betwee protectio devices are made possible by the microprocessor-based trip uits equipped with the Modbus commuicatio iterface. The use of these trip-uits allows ABB SACE circuitbreakers to: - exchage data with other electroic devices through a commuicatio bus ad to iteract with the supervisio systems for the computer-based maagemet of low voltage electrical istallatios - itegrate the maagemet of the electrical distributio plat with the automatio systems of a whole factory or idustrial process; for istace, itegrate the iformatio (currets, voltages ad powers) comig from the circuit-breakers which protect the motors, the auxiliary circuits ad the supply lie of the electrical furaces of a steelworks with the iformatio ad the data relevat to the physical quatities (e.g. pressure ad temperature) ivolved i the maagemet of the whole process. I this way, the circuit-breaker equipped with Modbus iterface, besides carryig out the classic fuctio of protectig the plat agaist overcurrets ad deliver eergy to the loads, also takes the fuctio of field device of the supervisio system fuctioig both as trasmitter 7 as well as actuator. The use as a trasmitter makes it possible to keep uder cotrol the electrical eergy cosumptio ad to improve the maagemet of the electrical distributio plat. The eergy cosumptios of a electrical plat which supplies a defiite maufacturig process ca be cotrolled, stored ad aalyzed with purpose of: - reducig the power cosumptio i real time by discoectig the o-priority loads if the effective draw power exceeds the maximum cotractual power so as to avoid the paymet of pealties to the power supply authority; - idetifyig the type of electrical power supply cotract which is most suitable ad compatible with the real requiremets of the plat through a cotiuous cotrol ad a aalysis of the eergy withdrawal. I this way, it is possible to avoid sigig a cotract which is ot aliged with the variatios of the eergy withdrawals durig the year ad fid yourself, for istace, to pay a fie for the periods whe the cosumed power exceeds the maximum power fixed by cotract; - idetifyig ad allocatig the eergy costs associated to the idustrial process uder cotrol. Besides, thaks to the iformatio icluded i the circuitbreakers, it is possible, for example: - to keep uder cotrol the electrical eergy distributio system ad guaratee the optimum operatio of the idustrial process it supplies; - to verify that the mai electrical quatities are i the rage of the relevat rated values ad that the plat works properly. I this way it is possible to cotrol that the electrical supply has a good quality level; - to cotrol the alarm sigals of the circuit-breakers i order to prevet situatios of aomalous operatio, faults ad the cosequet trippig of the protectios, with the aim of reducig to a miimum iefficiecies ad dow times; - to have dedicated iformatio about the fault causes i a defiite sectio of the electrical plats. For istace, such causes ca be determied by storig ad aalyzig the phase currets (e.g.: trip due to a A short-circuit o the phase L2 o at 12:25). With this type of iformatio a statistical survey of the occurred abormal coditios is possible, thus allowig a statistical study o the fault causes); - to kow the diagostics data of the protectio devices (e.g. percetage of cotact wear) i order to schedule prevetive maiteace compatible with the workig cycle of the supplied process, so as to limit to a miimum the dowtimes ad guaratee service cotiuity for the istallatio. Moreover, the use of circuit-breakers as trasmitters of the supervisio system makes it possible measurig of the mai electrical quatities of the plat (currets, voltages, powers) without usig dedicated istrumets. The above ivolves cost savigs i terms of purchase costs of equipmet ad moreover it allows savig space iside the distributio switchboards sice it is ot ecessary to istall iside it the sesors to be iterfaced with the cotrol system. 7 For trasmitter a sesor is meat which trasmits the measured data through a commuicatio system. I this documet, the two terms sesor ad trasmitter, are used as syoym. 12

15 Figure 18: The circuit-breaker as sesor ad actuator of a supervisio system RS-232/RS-485 coverter Commads Data ModbusRTU 3 Supervisio of electrical distributio plats 13

16 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4 ABB solutio for bus commuicatio This chapter describes: - the electroic trip uits, the accessories ad the products which eable ABB SACE circuit-breakers to be itegrated ito the field buses Modbus RTU, Profibus DP ad DeviceNet for the supervisio ad the remote cotrol of LV electrical distributio plats; - the frot pael iterface HMI030; - the rules for the arragemet of the Modbus RS-485 etwork; - ABB digital measurig istrumets with commuicatio fuctio. 4.1 Emax air circuit-breakers PR122/P - PR123/P electroic trip uits for alteratig curret applicatios Modbus commuicatio: supervisio ad remote cotrol Emax air circuit-breakers provided with the electroic trip uit type PR122/P or PR123/P to be iterfaced with Modbus etworks eed the suitable commuicatio module PR120/D-M (for the characteristics of the module see Aex C), i order to: trasmit the alarm sigals of the protectios, the iformatio about the circuit-breaker (e.g.: state ad positio) ad the measures made available by the trip uit to a remote cotrol system thus implemetig supervisio; receive from a remote supervisio system the commads (e.g.: opeig ad closig of the circuit-breaker) or the settigs of the protectio fuctios, thus implemetig remote cotrol. To perform the remote cotrol, i.e. the mechaical implemetatio of the remote opeig ad closig commads, the circuit-breakers of Emax series together with PR120/D-M commuicatio module must be equipped also with the followig accessories: - shut opeig release (YO) - shut closig release (YC) - geared motor for the automatic chargig of the closig sprigs (M). As regards bus commuicatio, remid that the auxiliary supply voltage Vaux is ecessary for the trip uits PR122/P ad PR123/P (for its techical characteristics see Aex B). Measures The measures made available deped o the typology of the trip uit used ad o the presece, or ot, of the measurig module PR120/V. The voltage measurig module PR120/V (see Aex D), which must be required for PR122/P whereas it is fitted out by default o PR123/P, allows the trip uits to make available, i additio to the curret measure, also the mai electrical quatities of the plat, such as e.g the power (see Aex A). The measured values ca be set, by meas of PR120/D-M, to the remote supervisio system. For measures, data, alarms ad remote cotrol operatios please refer to Table A.1 i Aex A. All the commads from remote cotrol (through the bus) ca be disabled by settig the trip uit to local mode. PR122/P electroic trip uit - PR122/P + PR120/D-M commuicatio module + remote cotrol accessories (YO, YC, M) Supervisio ad remote cotrol Supervisio YO PR122/P PR120/D-M M YC Note: together with PR120/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied. 14

17 - PR122/P + PR120/D-M commuicatio module + remote cotrol accessories (YO, YC, M) Supervisio ad remote cotrol Supervisio PR122/P PR120/V PR120/D-M YO M YC 4 ABB solutio for bus commuicatio Note: together with PR120/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied. PR123/P electroic trip uit - PR123/P + PR 120/D-M commuicatio module + remote cotrol accessories (YO, YC, M) Supervisio ad remote cotrol Supervisio YO PR123/P PR120/D-M M The measurig module PR120/V is mouted by default o PR123/P trip uit YC Note: together with PR120/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied 15

18 Techical Applicatio Papers 4 ABB solutio for bus commuicatio PR122/DC ad PR123/DC electroic trip uits for direct curret applicatios LV circuit-breakers type E2, E3, E4 ad E6 of SACE series Emax DC for direct curret applicatios, equipped with electroic trip uit type PR122/DC or PR123/DC ca be itegrated ito the commuicatio systems with the Modbus RTU field bus for the supervisio ad cotrol of direct curret istallatios with voltages up to 1000Vd.c. PR120/D-M commuicatio module must be used for the coectio to the Modbus etwork (see Aex C). PR120/V measurig module is istalled by default iside PR122/DC ad PR123/DC trip uits. To implemet, from a remote supervisio system, opeig ad closig commads o the circuit-breakers series SACE Emax DC the followig accessories are ecessary (the same oes used for the remote cotrol of stadard Emax circuit-breakers for alteratig curret applicatios): - shut opeig release (YO) - shut closig release (YC) - geared motor for the automatic chargig of the closig sprigs (M). As regards bus commuicatio, please ote that the trip uits PR122/DC ad PR123/DC must be supplied with a auxiliary supply voltage of 24 V DC (for its techical characteristics see Aex B). PR122/VF electroic trip uit for variable frequecy applicatios Low voltage circuit-breakers type E2/VF ad E3/VF series SACE Emax VF, for variable frequecy applicatios (i particular at low frequecy from 1 to 60 Hz), equipped with electroic trip uit PR122/VF, ca be itegrated ito the commuicatio systems with the Modbus RTU fieldbus for the supervisio ad cotrol of variable frequecy istallatios (e.g. wid power turbies) with rated operatig voltage up to 1000V a.c. ad curret up to 2500A. For the coectio to the Modbus etwork the commuicatio module PR120/D-M must be used (see Aex C). To implemet, from a remote supervisio system, opeig ad closig commads o the circuit-breakers series SACE Emax VF the followig accessories are ecessary (the same oes used for the remote cotrol of stadard Emax circuit-breakers for alteratig curret applicatios): - shut opeig release (YO) - shut closig release (YC) - geared motor for the automatic chargig of the closig sprigs (M). As regards bus commuicatio, please ote that the trip uits PR122/VF must be supplied with a auxiliary supply voltage of 24 V DC (for its techical characteristics see Aex B). The measures, data, iformatio ad cotrol operatios from remote are summarized i Table A.1A of Aex A. All the commads from remote cotrol (via bus) ca be blocked by settig the trip uit to local mode. As regards the cofiguratio of use of PR122/DC ad PR123/DC trip uits with the accessories for the Modbus commuicatio, referece must be made to the cofiguratio of use of PR123/P trip uit for alteratig curret show o page 15 of this documet. NOTE: For a deeper aalysis o direct curret plats please cosult Techical Applicatio Paper No. 5: ABB circuit-breakers for direct curret applicatios. The measures, data, iformatio ad cotrol operatios from remote are summarized i Table A.1B of Aex A. All the commads from remote cotrol (via bus) ca be blocked by settig the trip uit to local mode. As regards the cofiguratio of use of the trip uit PR122/ VF with the accessories for the Modbus commuicatio, referece must be made to the cofiguratio of use of PR122/P trip uit for alteratig curret show o page 14 of this documet. NOTE: For a deeper aalysis o variable frequecy applicatios i wid power systems please cosult Techical Applicatio Paper No. 13: Wid power plats. NOTE: For more detailed iformatio about the dialogue fuctios ad the characteristics of the products described i this clause referece must be made to the relevat catalogues ad product techical mauals. For further iformatio o the structure of the Modbus map of the ABB trip uits provided with commuicatio iterfaces, referece must be made to the followig documets: - Modbus system Iterface for Protectio relays PR122/P ad PR123/P + commuicatio module PR120/D-M, mouted o CB New Emax; Protectio relays PR332/P ad PR333/P + commuicatio module PR330/D-M, mouted o CB Emax X1, Tmax T7 ad Tmax T8 (documet code: 1SDH000556R0001) - Emax DC PR122DC-PR123DC + PR120/D-M Modbus System Iterface (documet code: 1SDH000841R0001) - Emax VF PR122/VF + PR120/D-M Modbus System Iterface (documet code: 1SDH000922R0001). 16

19 4.2 Emax X1 air circuit-breakers ad Tmax T7 moulded-case circuit-breakers Modbus commuicatio: supervisio ad remote cotrol To be iterfaced with Modbus etworks Emax X1 air circuit-breakers equipped with the electroic trip uit type PR332/P or PR333/P ad Tmax T7 moulded-case circuitbreakers provided with PR332/P electroic trip uit, eed the suitable commuicatio module PR330/D-M (for the characteristics of the module see Aex C), i order to: trasmit the alarm sigals of the protectios, the iformatio about the circuit-breaker (e.g.: state ad positio) ad the measures made available by the trip uit to a remote cotrol system thus implemetig supervisio. receive from a remote supervisio system the settigs of the protectio fuctios or the commads (e.g.: opeig ad closig of the circuit-breaker), thus implemetig remote cotrol. The circuit-breakers Emax X1 ad Tmax T7 i motorizable versio T7M ca be cotrolled from remote. Tmax T7 i ot-motorizable versio caot be cotrolled from remote. To perform the remote cotrol, i.e. the mechaical implemetatio of the remote opeig ad closig commads, the circuit-breakers type Emax X1 ad Tmax T7M, with PR330/D-M commuicatio module, must be equipped also with the followig accessories: - PR330/R actuatio module (see Aex C) - shut opeig release (SOR) - shut closig release (SCR) - geared motor for the automatic chargig of the closig sprigs (M). As regards bus commuicatio, remid that it is ecessary to supply the trip uits PR332/P ad PR333/P with the auxiliary voltage Vaux (for its characteristics see Aex B). Measures The measures made available deped o the typology of trip uit used ad o the presece of the measurig module PR330/V. The voltage measurig module PR330/V (see Aex D), which must be provided for PR332/P, whereas it is fitted out by default o PR333/P, allows the trip uits to make available, i additio to the curret measures, also the mai electrical quatities of the plat, such as for example the power (see Aex A). The measured values ca be set, by meas of PR330/D- M, to the remote supervisio system. For measures, data, alarms ad remote cotrol operatios please refer to Table A.1 i Aex A. All the commads from remote cotrol (through the bus) ca be disabled by settig the trip uit to local mode. 4 ABB solutio for bus commuicatio PR332/P electroic trip uit for Emax X1 ad Tmax T7 - PR332/P + PR330/D-M commuicatio module + accessories for the remote cotrol (PR330/R, SOR, SCR, M) Supervisio ad remote cotrol SOR Supervisio PR332/P PR330/D-M PR330/R SCR M For remote cotrol with Tmax T7, the motorizable versio T7M is eeded. Note: together with PR330/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied. 17

20 Techical Applicatio Papers 4 ABB solutio for bus commuicatio - PR332/P + PR330/D-M commuicatio module + PR330/V measurig module + accessories for the remote cotrol (PR330/R, SOR, SCR, M). Supervisio ad remote cotrol Supervisio PR332/P PR330/V PR330/D-M PR330/R For remote cotrol with Tmax T7, the motorizable versio T7M is eeded. SOR SCR M Note: together with PR330/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied. PR333/P electroic trip uit for Emax X1 - PR333/P + PR330/D-M commuicatio module + accessories for the remote cotrol (PR330/R, SOR, SCR, M) Supervisio ad remote cotrol SOR Supervisio PR333/P PR330/D-M PR330/R SCR M The measurig module PR330/V is mouted by default o PR333/P trip uit Note: together with PR330/D-M module, also the cotact sigalig sprig charged ad the cotact sigalig CB i racked-i/out positio are supplied. NOTE: For more detailed iformatio about the dialogue fuctios ad the characteristics of the products described i this clause referece must be made to the relevat catalogues ad product techical mauals. For further iformatio o the structure of the Modbus map of the ABB trip uits provided with commuicatio iterfaces, referece must be made to the followig documets: - Modbus system Iterface for Protectio relays PR122/P ad PR123/P + commuicatio module PR120/D-M, mouted o CB New Emax; Protectio relays PR332/P ad PR333/P + commuicatio module PR330/D-M, mouted o CB Emax X1, Tmax T7 ad Tmax T8 (documet code: 1SDH000556R0001) 18

21 4.3 Moulded-case circuit-breakers Tmax T4- T5-T6 Modbus commuicatio: supervisio ad remote cotrol. The trip uits type PR222DS/PD, PR223EF ad PR223DS for the circuit-breakers type Tmax T4, T5 ad T6 ca be iterfaced to Modbus etworks through the suitable X3 rear coector (see Aex C). Commuicatio ad dialogue are implemeted i order to: trasmit the alarm sigals of the protectios, the iformatio about the circuit-breaker (e.g.: state ad positio) ad the measures made available by the trip uit to a remote supervisio system, thus implemetig supervisio. To make available for the remote supervisio system the iformatio about the circuit-breaker state (ope, closed, tripped) the circuit-breakers Tmax T4, T5 ad T6 must be equipped with the AUX-E auxiliary cotacts i electroic versio (see Aex E). receive from a remote supervisio system the commads (e.g.: opeig ad closig of the circuit-breaker) or the settigs of the protectio fuctios thus implemetig remote cotrol. To perform the remote cotrol, i.e. the mechaical implemetatio of the remote opeig ad closig commads, Tmax moulded-case circuit-breakers type T4, T5 ad T6 must be equipped with the motor operator with electroic iterface MOE-E (Aex E) ad the AUX-E auxiliary cotacts i electroic versio (Aex E). As regards bus commuicatio, remember that the auxiliary supply voltage Vaux is ecessary for the trip uits PR222DS/PD, PR223EF ad PR223DS (for its characteristics see Aex B). Measures The trip uits type PR222DS/PD, PR223EF ad PR223DS give the measure of the currets i the three phases, i the eutral ad to earth. Thaks to the voltage measurig module VM210 ad X4 rear coector (see Aex D), the trip uits type PR223EF ad PR223DS ca measure, i additio to the currets, also the mai electrical quatities of the plat (see Aex A). The measured values ca be set to the remote supervisio system by the trip uit, through the termials 1 ad 2 of X3 coector. For measures, data, alarms ad remote cotrol operatios please refer to Table A.2 i Aex A. All the commads from remote cotrol (through the bus) ca be disabled by settig the trip uit to local mode. 4 ABB solutio for bus commuicatio PR222DS/PD electroic trip uit - PR222DS/PD + AUX-E auxiliary cotacts i electroic versio + X3 coector + MOE-E motor operator with electroic iterface Supervisio ad remote cotrol Supervisio PR222DS/PD AUX-E Coector X3 MOE-E 19

22 Techical Applicatio Papers PR223EF electroic trip uit 4 ABB solutio for bus commuicatio - PR223EF + AUX-E auxiliary cotacts i electroic versio + X3 coector + MOE-E motor operator with electroic iterface Supervisio ad remote cotrol Supervisio PR223EF AUX-E Coector X3 MOE-E 4 ABB solutio for bus commuicatio - PR223EF + AUX-E auxiliary cotacts i electroic versio + X3 coector + X4 coector + VM210 measurig module + MOE-E motor operator with electroic iterface Supervisio ad remote cotrol PR223EF Supervisio AUX-E Coector X3 Coector X4 VM210 MOE-E 20

23 4 ABB solutio for bus commuicatio PR223DS electroic trip uit - PR223DS + AUX-E auxiliary cotacts i electroic versio + X3 coector + MOE-E motor operator with electroic iterface Supervisio ad remote cotrol Supervisio PR223DS AUX-E Coector X3 MOE-E 4 ABB solutio for bus commuicatio - PR223DS + AUX-E auxiliary cotacts i electroic versio + X3 coector + X4 coector + VM210 measurig module + MOE-E motor operator with electroic iterface Supervisio ad remote cotrol PR223DS Supervisio AUX-E Coector X3 Coector X4 VM210 MOE-E NOTE: For more detailed iformatio about the dialogue fuctios ad the characteristics of the products described i this clause referece must be made to the relevat catalogues ad product techical mauals. For further iformatio o the structure of the Modbus map of the ABB trip uits provided with commuicatio iterfaces, referece must be made to the followig documets: - Istructio maual PR223EF Modbus System Iterface (documet code: 1SDH000566R0001) - Istructio maual PR223DS Modbus System Iterface (documet code: 1SDH000658R0001) - Istructio maual PR222DS/PD Modbus System Iterface (documet code: 1SDH000600R0001). 21

24 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.4 Moulded-case circuit-breakers SACE Tmax XT2-XT4 Modbus commuicatio: supervisio ad remote cotrol The electroic trip uits type Ekip LSI, Ekip LSIG, Ekip M-LRIU ad Ekip E-LSIG (the last oe for SACE Tmax XT4 circuit-breakers oly) ca be itegrated ito the commuicatio systems with Modbus RTU fieldbus, for the supervisio ad remote cotrol of low voltage electrical plats. The coectio to the Modbus etwork is carried out through Ekip Com module (for iformatio see Aex C), which is the commuicatio iterface ecessary to coect the above metioed electroic trip uits to the fieldbus ad make them dialogue with the supervisio systems. Thus it is possible to: - acquire from remote all the measures, the iformatio, the alarms available i the trip uit ad the circuit-breaker state for the supervisio of the electrical plat (e.g.: cotrol the eergy cosumptio ad moitor the quality of the electrical etwork); - sed from remote opeig/closig ad reset commads (if the circuit-breaker is equipped with MOE-E motor operator see Aex F); - set from remote the cofiguratio, programmig ad protectio parameters (curret thresholds ad trip times of the protectios, curves of the protectio fuctios) of the trip uit. SACE Tmax XT2-XT4 moulded-case circuit-breakers ca be used i the commuicatio systems for a complete ad total supervisio of the electrical plat startig from load currets of 4 A; for example this is possible with a moulded-case circuit-breaker type SACE Tmax XT2 equipped with Ekip LSI electroic trip uit I = 10 A ad protectio L set at 0.4 I. For the commuicatio ad dialogue fuctios, the Ekip Com module ad the electroic trip uit must be supplied with 24 V DC auxiliary voltage (Vaux) (for the techical characteristics see Aex B). To accomplish from remote the opeig/closig ad reset commads, the moulded-case circuit-breakers type SACE Tmax XT2 ad XT4 must be equipped with MOE-E motor operator with electroic iterface (see Aex F). Measures I additio to the supervisio fuctios described above, the trip uits with commuicatio iterface allow the electrical quatities of the plat to be moitored by sedig to the supervisio ad cotrol system the measures they make available. I particular, the electroic trip uits Ekip LSI, Ekip LSIG ad Ekip M-LRIU are able to measure the curret values (currets i the three phases, i the eutral ad to earth). Ekip E-LSIG electroic trip uits for SACE Tmax XT4 circuit-breakers put at disposal, i additio to the curret values, also the mai electrical parameters of the plat, such as: voltages (lie-to-lie ad lie-to-eutral), power, eergy (to optimize cosumptio as well as their allocatio, frequecy ad harmoic distortio rate (THD ad spectrum) to cotrol the quality of the eergy. All the electrical quatities are measured by the Ekip-E LSIG without ay help from exteral measurig modules. The measured electrical quatities are stored i the trip uit, with the possibility of beig trasmitted to the cotrol system for the supervisio of the electrical plat. The mai data, alarms ad measures put to disposal by each trip uit are summarized i Table A.3 of Aex A. All the commads from remote cotrol (via bus) ca be blocked by settig the trip uit to local mode. 22

25 Electroic trip uits Ekip E-LSIG, Ekip LSIG, Ekip LSI ad Ekip M-LRIU - Ekip E-LSIG/LSIG/LSI/M-LRIU + Ekip Com commuicatio module + MOE-E motor operator Supervisio ad remote cotrol Supervisio Ekip E-LSIG Ekip LSIG Ekip Com Ekip LSI MOE-E 4 ABB solutio for bus commuicatio Ekip M-LRIU Through Ekip Com commuicatio module it is possible to itegrate the followig equipmet ito the supervisio systems: - SACE Tmax XT2 ad XT4 circuit-breakers, with electroic trip uits Ekip LS/I, Ekip I, Ekip M-LIU, Ekip G-LS/I ad Ekip N-LS/I without Modbus commuicatio, ad the circuit-breakers with thermomagetic trip uits TMA, TMD, TMG (which ca be used also for applicatios i cotiuous curret); - SACE Tmax XT4D switch-discoectors With this cofiguratio, it is possible to: - acquire from remote the circuit-breaker state (ope/ closed, tripped) or the switch-discoector state (ope/ closed); - sed from remote opeig/closig commads to the circuit-breaker/switch-discoector ad reset commads to the circuit-breaker oly, if the circuit-breaker/ switch-discoector are equipped with MOE-E - motor operator with electroic iterface (see Aex F). Also i this cofiguratio, the module Ekip Com must be supplied with 24 V DC auxiliary supply (Vaux) - for the techical characteristics see Aex B. 23

26 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Circuit-breakers with TMA/TMD thermomagetic trip uits, Ekip electroic trip uits without Modbus commuicatio ad SACE Tmax XT4D switch-discoectors - TMA/TMD-Ekip without Modbus commuicatio + Ekip Com commuicatio module + MOE-E motor operator TMA/TMD CB state ad remote cotrol CB state Ekip LS/I, Ekip I, Ekip M-LIU, Ekip G-LS/I, Ekip N-LS/I Ekip Com MOE-E - SACE Tmax XT4D switch-discoector + Ekip Com commuicatio module + MOE-E motor operator XT4D Switch-discoector state ad remote cotrol Switch-discoector state Ekip Com MOE-E NOTE: For more detailed iformatio about the dialogue fuctios ad the characteristics of the products described i this clause referece must be made to the relevat catalogues ad product techical mauals. 24

27 4.5 SD030DX solutio for the circuit-breakers without Modbus RTU iterface SD030DX are electroic devices which allow the iterface of: - air ad moulded-case circuit-breakers equipped with thermomagetic or basic electroic trip uit - air or moulded-case switch-discoectors to a Modbus etwork. The circuit-breakers ad the switch-discoectors coected i this way appear o the Modbus etwork as slave uits ad ca commuicate with whatever masters (PC, PLC, SCADA). This makes it possible for the supervisio systems to maage also these apparatus. I particular, the supervisio system ca: 1) read the circuit-breaker state: ope, closed, tripped, racked-i/out, charged/discharged sprigs 2) commad opeig, closig ad reset of the devices. Readig of the state of the apparatus is carried out through the auxiliary cotacts (which therefore must be mouted o the circuit-breaker). As regards commads istead, the circuit-breaker/ switch-discoector must be fitted out with suitable accessories. 4 ABB solutio for bus commuicatio The mai characteristics of SD030DX are show i the followig table: Type of device Features Descriptio - 3 digital outputs - Ope, Closed, Reset SD030 DX - 5 digital iputs - Acquisitio of CB state Figure19: SD030DX solutio Coverter RS-232/RS-485 SD030DX SD030DX SD030DX SD030DX Tmax T5 + PR221DS Tmax T3 + TMA Tmax T4 + PR221DS Emax E2 + PR121/P 25

28 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Readig of the circuit-breaker state To read the circuit breaker state, up to 5 auxiliary cotacts ca be used, coected respectively to the five digital iputs (DI1, DI2, DI3, DI4 ad DI5) of SD030DX. Circuit-breaker type T1-T2-T3 with 5-wire soleoid operatig mechaism The followig table shows: - the circuit-breakers ad the switch-discoectors which ca be maaged through SD030DX - the iformatio associated to each digital iput (with the correspodig auxiliary cotact) for the differet type of circuit-breaker. Associated iformatio Sprigs Protectio CB state Mode Discharged=0 Charged=1 T4-T5-T6 - - Normal=0 Tripped=1 DI2 + cotact for the electrical sigalig of tripped protectio (S51) DI2 + cotact for the electrical sigalig of tripped protectio (S51) Racked-out=0 Racked-i=1 DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) Ope=0 Closed=1 DI4 + CB auxiliary cotacts (Q/1) DI4 + CB auxiliary cotacts (Q/1) Normal=0 Tripped=1 DI1 + cotact for the electrical sigalig of circuit-breaker tripped (SY) Remote=0 Local=1 DI5 + switchig DI1 + cotact for the cotact for electrical electrical sigalig of sigalig of local/ circuit-breaker remote selector state tripped (SY) (S3/1) - T7, X1 E1 E6 DI1 + limit cotact for sprig-chargig motor (S33M/1) DI2 + cotact for the electrical sigalig of circuit-breaker ope due to the trippig of the overcurret trip uit (S51) DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) DI4 + CB auxiliary cotacts (Q/1) - DI5 + switch for settig remote/local cotrol (S43) Switch-discoector type T1D-T3D with 5-wire soleoid operatig mechaism - - DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) DI4 + CB auxiliary cotacts (Q/1) - - T4D-T5D-T6D - - DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) DI4 + CB auxiliary cotacts (Q/1) - DI5 + switchig cotact for electrical sigalig of local/ remote selector state (S3/1) T7D, X1B/MS E1/MS E6/MS DI1 + limit cotact for sprig-chargig motor (S33M/1) - DI3 + cotact for the electrical sigalig of circuit-breaker i racked-i positio (S75I/1) DI4 + CB auxiliary cotacts (Q/1) - DI5 + switch for settig remote/local cotrol (S43) 26

29 Remote cotrol The SD030DX uits carry out the commads (opeig, closig ad reset) set by the supervisio system to the circuit-breaker/switch-discoector. The followig table shows: 1) the circuit-breakers ad the switch-discoectors which ca be remote operated; 2) the accessories, to be mouted o the circuit-breaker, through which it is possible to actuate the commads; 3) the type of commad which ca be performed. Circuit-breaker type Accessories for the commad actuatio Commads T1-T2-T3 Soleoid operator (MOS) Opeig/Closig T4-T5-T6 Stored eergy motor operator (MOE) Opeig/Closig T7M, X1 E1 E6 SOR: shut opeig release SCR: shut closig release YR: reset coil M: geared motor for the automatic chargig of the closig sprigs YO: shut opeig release YC: shut closig release YR: reset coil M: geared motor for the automatic chargig of the closig sprigs Opeig Closig Reset Opeig Closig Reset Discoector type T1D-T3D Soleoid operator (MOS) Opeig/Closig T4D-T5D-T6D Stored eergy motor operator (MOE) Opeig/Closig T7DM, X1B/MS SOR: shut opeig release SCR: shut closig release M: geared motor for the automatic chargig of the closig sprigs Opeig Closig E1/MS E6/MS YO: shut opeig release YC: shut closig release M: geared motor for the automatic chargig of the closig sprigs Opeig Closig 4 ABB solutio for bus commuicatio Figure 20: Circuit diagram of SD030DX Vaux auxiliary supply + 24V EIARS-485 iterface for the coectio to Modbus etwork A B DO1 DO2 DO3 DI1 DI2 DI3 DI4 DI SD030 DX Digital outputs Digital iputs 27

30 Techical Applicatio Papers 4 ABB solutio for bus commuicatio The proper wirigs for a correct fuctioig of SD030DX are coected to: - the auxiliary circuits of the circuit-breaker through DI iputs ad DO outputs, so that the uit ca iteract with the CB ad make it possible commad actuatio (opeig, closig, reset) ad the detectio of CB state; - the Modbus etwork, through EIA RS-485 serial iterface, to commuicate with the supervisio system (PC, PLC or SCADA); - the Vaux auxiliary supply. Figure 21: Wirig diagram of SD030DX for a CB type Emax E6 EIA RS485 INTERFACE + +24V AUXILIARY SUPPLY CHARGED SPRINGS PROTECTION TRIPPED CB RACKED-IN As a example, Figure 21 shows the wirig diagram of the SD030DX uit to a air circuit-breaker type Emax E6. I order to fuctio, SD030DX uit eeds to be supplied by a auxiliary voltage Vaux havig the followig characteristics: CB CLOSED Characteristics of the auxilary voltage SD030DX Supply voltage 24 V dc ± 20% Maximum ripple ± 5% Rated V REMOTE/LOCAL MODE + + ~ CB OPENING 2 W CB CLOSING CB RESET SPRING CHARGING MOTOR A10 X 37 XV 37 X XV XF 104 X XV A B Q1 S33M/2 XV X S51 XV X S75I/1 XF 101 XV X Q/ S43 REM. LOC. SD030DX 7 D01 9 D02 11 D X C11 X C1 X R1 X U1 DI1 DI2 DI3 DI4 DI5 XV C11 XV C1 XV R1 XV U1 S33M 1 SD030DX I F1 YO YC YR M XV C12 XV C2 XV R2 XV U2 Q1 X C12 X C2 X R2 X U2 0V ~ 28

31 4.6 Frot pael iterface HMI030 HMI030 is the visualizatio uit to be istalled o the pael frot, for air circuit-breakers series Emax ad Emax X1, for moulded-case circuit-breakers Tmax T, ad SACE Tmax XT equipped with the followig electroic trip uits: Circuit-breakers Trip uits Emax E1 E6 PR121/P-PR122/P-PR123/P-PR122/DC (*) -PR123/DC (*) Emax X1 Tmax T7 Tmax T4-T5-T6 SACE Tmax XT2-XT4 (*) PR331/P-PR332/P-PR333/P PR331/P-PR332/P PR222DS/PD-PR223DS-PR223EF Ekip LSI, Ekip LSIG, Ekip E-LSIG, Ekip M-LRIU (*) use HMI030 with 3.00 or followig SW versio i the coected trip uit to be displayed. Before completig the istallatio of HMI030, by actig o the suitable selector positioed o the back of the device, it is possible to choose oe of the selected operatio mode: - Ammeter mode (A) I this mode it is possible to display the values of the currets i the three phases ad i the eutral based o the trip uit coected. Moreover, it is possible to display the maximum curret value ad the phase passed through by the maximum curret, referred to the latest acquisitio from the Measure History of the trip uit. This iformatio is available if, i case of Modbus commuicatio, HMI030 uit is operatig i Master mode. - Voltmeter Mode (V) I this mode it is possible to display the values of the phase voltages V1N, V2N, V3N ad the values of the lie-to-lie voltages V12, V23, V31. I this mode, the iformatio of the Measure History of the trip uit caot be displayed. 4 ABB solutio for bus commuicatio It is a device which, through a display, allows the electrical quatities of the plat ad the iformatio available Ammeter mode (A) E1 E6-X1-T7 E2 E6 T4-T5-T6 XT2-XT4 PR12x/P-PR33X/P PR12X/DC PR222DS/PD-PR223DS-PR223EF Ekip LSIG/LSI - Ekip E-LSIG Ekip M-LRIU Phase currets (I L1 -I L2 -I L3 ) Neutral curret (I Ne ) (*) Measures history (currets) (*) Measures available i the presece of the eutral (with four-pole circuit-breaker or three-pole circuit-breaker + CT for exteral eutral coductor) Voltmeter mode (V) E1 E6-X1-T7 E2 E6 T4-T5-T6 XT2-XT4 PR122/P-PR123/P PR332/P-PR333/P PR12X/DC PR223EF PR223DS Ekip E-LSIG Phase voltages (V 1N -V 2N -V 3N ) (*) Residual voltage (*) Lie to lie voltages (V 12 -V 23 -V 31 ) (**) (*) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5- T6) ad i the presece of the eutral (**) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5-T6) 29

32 Techical Applicatio Papers 4 ABB solutio for bus commuicatio - Wattmeter Mode (W) I this mode, accordig to the trip uit coected, it is possible to display the values of active power P, reactive power Q ad apparet power S (total ad phase). - Custom Mode (A, V, W ) I this mode it is possible to display the values relevat to Amperometer, Voltmeter ad Wattmeter modes ad, accordig to the trip uit coected, also other iformatio, such as: power factor (cosφ), frequecy (f), curret peak factor, active E(P), reactive E(Q) ad apparet E(S) eergy ad the data relevat to the latest trip (e.g.: tripped protectio ad value of tripped curret). Wattmeter mode (W) E1 E6-X1-T7 E2 E6 T4-T5-T6 XT2-XT4 PR122/P-PR123/P PR12X/DC PR223DS Ekip E-LSIG PR332/P-PR333/P Phase active power (P1-P2-P3) (*) Phase reactive power (Q1-Q2-Q3) (*) Phase apparet power (S1-S2-S3) (*) Total active power (P) (**) Total reactive power (Q) (**) Total apparet power (S) (**) (*) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5-T6) ad i the presece of the eutral coductor (**) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5-T6) Custom mode (A,V,W ) E1 E6-X1-T7 E2 E6 T4-T5-T6 XT2-XT4 PR121/P-PR331/P PR122/P-PR123/P PR12X/DC PR222DS/PD PR223EF PR223DS Ekip E-LSIG Ekip LSIG/LSI Ekip M-LRIU PR332/P-PR333/P Phase currets (I L1 -I L2 -I L3 ) Neutral curret (I Ne ) (*) Measures history (currets) Phase voltages (V 1N -V 2N -V 3N ) (**) Residual voltage (**) Lie to lie voltages (V 12 -V 23 -V 31 ) (***) Phase active powers (P1-P2-P3) (**) Phase reactive powers (Q1-Q2-Q3) (**) Phase apparet powers (S1-S2-S3) (**) Total active power (P) (***) Total reactive power (Q) (***) Total apparet power (S) (***) Total power factor (cosφ tot ) (***) Frequecy (***) Phase peak factor Peak factor of the eutral (*) Total active eergy (***) Total reactive eergy (***) Total apparet eergy (***) Data of the latest trip (*) Measures available i the presece of the eutral (with four-pole circuit-breaker or three-pole circuit-breaker + CT for exteral eutral coductor) (**) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5-T6) ad i the presece of the eutral coductor (***) Measures available i the presece of the measurig module (PR120/V for Emax E1 E6, PR330/V for Emax X1 ad Tmax T7, VM210 for Tmax T4-T5-T6) 30

33 O the HMI030 uit, the iterface RS485 (termials 3 ad 4) ad CAN (termials 7 ad 8) caot be used simultaeously. As a cosequece it is ot possible to have simultaeously Modbus commuicatio ad the commuicatio o WI iteral bus (Bus CAN dedicated to ABB devices). More tha oe uit HMI030 set i the same operatig mode caot be coected to the same bus. To be able to operate, the uit HMI030 must be supplied with a auxiliary voltage (Vaux) havig the followig characteristics: Supply voltage 24 V dc ± 20% Maximum ripple ± 5% Rated power V dc The auxiliary supply shall be provided usig a galvaically isolated exteral power supply. Sice a auxiliary supply voltage isolated from earth is required, it is ecessary to use galvaically isolated coverters complyig with the Stds. IEC (UL 1950) or its equivalet IEC ad CEI 64-8, which guaratee a commo mode curret or leakage curret (see IEC 478/1 ad CEI 22/3) ot higher tha 3.5 ma. Here are some examples of wirig diagrams for the use of the uit HMI030. For more detailed iformatio o the use ad characteristics of this device, referece must be made to the product techical maual HMI030 Remote visualizatio uit (documet code 1SDH000573R0001). Emax E1 E6 - Emax X1 - Tmax T7 With air-circuit-breakers type Emax E1 E6, Emax X1 ad moulded-case circuit-breakers Tmax T7, the followig cofiguratios are available: - Remote supervisio ad display o pael frot 4 ABB solutio for bus commuicatio HMI030 RS485 Bus (A) (B) (CAN_L) (CAN_H) Remote supervisio system Vaux + 24V K1 K1 + 24V K2 K2 (A) W2 (B) (A) W1 (B) W3 W3 Modbus cable W4 W4 W1 W1 Modbus cable W2 W2 Termial box of the circuit-breaker or slidig cotacts PR122/P PR123/P PR122/DC PR123/DC PR120/D-M PR330/D-M PR332/P PR333/P HMI030 uit cofigured i Master mode ad Modbus commuicatio W1: System bus of the trip uit (termials W1 ad W2) W2: Local bus of the trip uit (termials W3 ad W4) K1-K2: auxiliary supply Vaux The coectio betwee trip uit ad HMI030 shall be achieved through twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: Belde 3105 cable type or equivalet). The shield shall be coected to earth at oe ed of the coectio. Maximum recommeded legth for the coectio betwee HMI030 ad trip uit: 15 m. I this cofiguratio it is possible to coect to the trip uit oe HMI030 uit oly (o the bus W2). 31

34 Techical Applicatio Papers - Display o pael frot 4 ABB solutio for bus commuicatio Vaux + K1 K1 HMI030 (A) (B) (CAN_L) (CAN_H) V + 24V RS485 Bus K2 K2 Modbus cable Modbus cable (A) W2 (B) (A) W1 (B) W3 W4 W1 W2 W3 W4 W1 W2 HMI030 (A) (B) (CAN_L) (CAN_H) Vaux + 24V RS485 Bus CB termial box or slidig cotacts PR120/D-M PR330/D-M PR121/P PR331/P PR122/P - PR123/P PR122/DC - PR123/DC PR332/P - PR333/P HMI030 uit cofigured i Master mode ad Modbus commuicatio W1: System bus of the trip uit (termials W1 ad W2) W2: Local bus of the trip uit (termials W3 ad W4) K1-K2: auxiliary supply Vaux Maximum recommeded legth for the coectio betwee HMI030 ad the trip uit (o the bus W2): 15 m (*) Whe the System bus W1 of the trip uit is used, the maximum recommeded legth for the coectio betwee HMI030 ad trip uit is 300 m. I this case, it is ecessary to: - use PR120/D-M (PR330/D-M) commuicatio module for the coectio betwee HMI030 ad trip uit; HMI030 shall be coected to the System bus W1 of the trip uit - set HMI030 uit to Master mode; use Modbus RS485 commuicatio iterface (termials 3 ad 4) - set the followig commuicatio parameters of the trip uit: Address: 3; Baud rate: 19200; Parity: EVEN; Stop bit : 1. The coectio betwee trip uit ad HMI030 shall be achieved through twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: Belde 3105 cable type or equivalet). The shield shall be coected to earth at oe ed of the coectio. With this cofiguratio ad with trip uit type PR121/P ad PR331/P, it is possible to coect oly oe HMI030 uit to the trip uit (o the Local bus W2). With this cofiguratio ad with trip uits type PR122/P, PR123/P, PR332/P, PR333/P, PR122/DC ad PR123/DC, it is possible to coect up to two HMI030 to the trip uits; the first oe o the Local bus W2 ad the secod oe o the System bus W1 (see (*)) Sice they are coected to two differet buses, the two HMI030 uits ca be set to the same operatig mode. 32

35 - Display o pael frot with more uits HMI030 It is possible to coect up to four HMI030 uits to the same trip uit (o the same bus) if the followig coditios are complied with: - trip uit type PR122/P-PR123/P or PR332/P-PR333/P; - each uit HMI030 has SW versio 2.00 or followig oes ad is cofigured i Slave mode; Modbus RS485 commuicatio iterface is used (termials 3 ad 4); - MM030 uit is preset (supply with auxiliary voltage at 24 V d.c. (P=2.5 - four differet operatig modes (Ammeter, Voltmeter, Wattmeter ad Custom) are selected for each HMI030. Priciple scheme PR122/P-PR123/P PR332/P-PR333/P MM030 Local bus W2 4 ABB solutio for bus commuicatio Accessory bus W3 HMI030 RS=A RS=V RS=W RS=A, V, W... RS: Rotative Selector W2: Local bus of the trip uit (termials W3 ad W4) ad of the uit MM030 (termials 10 ad 11) W3: Accessory bus of MM030 uit (termials 13 ad 14) Maximum recommeded legth for the Local bus W2: 15 m Maximum recommeded legth for the Accessory bus W3: 300 m For the coectios twisted pair cables, shielded ad with characteristic impedace equal to a 120 Ω (e.g.: cable type Belde 3105 or equivalet). For the coectio betwee trip uit ad MM030, it is advisable to groud the shield at the ed of the coectio towards the trip uit. As regards wirig of the Accessory bus W3, it is advisable to groud the shield at the ed of the coectio towards MM030 uit. As for wirig, the istructios of the product techical maual Flex Iterfaces for Accessory Bus should be followed. With PR121/P ad PR331/P trip uits it is possible to coect up to two HMI030 uits o which two differet operatig modes have bee selected: Ammeter (A) ad Custom (A, V, W ). I this cofiguratio, to maage the iformatio exchage betwee the trip uit ad HMI030 iterface devices, MM030 uit must be used. MM030 is a microprocessor-based device provided with two differet commuicatio buses: - oe Local bus (W2), for the coectio ad commuicatio with the trip uit (via the System bus W1 of the trip uit); - oe Accessory bus (W3), for the coectio ad commuicatio with HMI030 uits. I this way, MM030 receives the data from the trip uit (via the bus W2) ad seds it to the visualizatio uits HMI030 coected to it (via the bus W3) so that it is possible to display o the pael frot the measured electrical quatities. For more detailed iformatio see the product techical maual Flex iterfaces for accessory Bus (documet code: 1SDH000622R0001). 33

36 Techical Applicatio Papers Moulded-case circuit-breakers type SACE Tmax XT2 XT4 4 ABB solutio for bus commuicatio With the moulded-case circuit-breakers series SACE Tmax XT2 ad XT4 equipped with Ekip E-LSIG, Ekip LSI, Ekip LSIG ad Ekip M-LIRU electroic trip uits are possible with the two followig cofiguratios: - Remote supervisio ad display o pael frot JF3 XC5 JE3 XC5 XV Vaux V WI 3 7 CAN 1 2 HMI030 K2 K2 K1 K1 WI W4 W4 W3 W3 Modbus cable Remote supervisio system WS W1 W1 W2 W2 JF3-JE3: coectors for the auxiliary circuits of the CB i withdrawable versio XC5: 6-pi plug-ad-socket adapter o the back of the pael for the auxiliary circuits of the CB i plug-i versio XV: termial box of the CB applicatios SY/3 Q/7 Ekip Com module Ekip E-LSIG / Ekip LSI Ekip LSIG / Ekip M-LIRU This cofiguratio ca be achieved if HMI030 is provided with SW versio 3.00 or followig oes. HMI030 cofigured i Master mode ad commuicatio via Iteral bus WI WI: Iteral bus of the trip uit (CAN iterface reserved for ABB devices; cables W3 ad W4 of Ekip Com module) WS: System bus of the trip uit (cables W1 ad W2 of Ekip Com module) K1-K2: auxiliary supply Vaux Maximum legth of the coectio betwee HMI030 ad trip uit: 15 m. The coectio betwee trip uit ad HMI030 shall be achieved through twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: Belde 3105 cable type or equivalet). The shield shall be coected to earth at oe ed of the coectio. 34

37 - Display o pael frot To achieve this cofiguratio it is possible to use the suitable 24 V DC auxiliary voltage kit to coect the electroic trip uits type Ekip E-LSIG, Ekip LSI, Ekip LSIG ad Ekip M-LRIU to HMI030 uit. The 24 V DC auxiliary voltage kit is available i two versios, oe for the circuit-breakers i fixed/plug-i versio ad oe for the circuit-breakers i withdrawable versio. Figure 22: 24 V DC auxiliary voltage kit for circuit-breakers i withdrawable versio 24 V DC auxiliary voltage kit for CBs i withdrawable versio K1 W3 W4 K2 4 ABB solutio for bus commuicatio Fixed part of JH2 coector Fixed part of JL2 coector Movig part of JH2 coector Movig part of JL2 coector Cable for the coectio to the trip uit JL2-JH2: coectors for the auxiliary circuits of the circuit-breakers i withdrawable versios 35

38 Techical Applicatio Papers 4 ABB solutio for bus commuicatio JL2 JH2 X3 Vaux 24 V DC auxiliary voltage kit V WI 3 7 CAN 1 2 HMI030 K2 K2 K2 K1 K1 K1 W4 WI W4 W4 W3 W3 W3 JL2-JH2: coectors of the 24 V DC auxiliary voltage kit for CB i withdrawable versio X3: 6-pi plug-ad-socket adapter o the back of the pael for the 24 V DC auxiliary voltage kit for CB i plug-i versio 24V Cable for the coectio to the trip uit Ekip E-LSIG / Ekip LSI Ekip LSIG / Ekip M-LIRU This cofiguratio ca be achieved if HMI030 uit is provided with SW versio 3.00 or followig oes. HMI030 is cofigured i Master mode ad with commuicatio via Iteral bus WI The 24 V DC auxiliary voltage kit must be used K1-K2: auxiliary supply Vaux WI: Iteral bus of the trip uit (CAN Iterface reserve for ABB devices; cables W3 ad W4 of the 24 V DC auxiliary voltage kit) Maximum legth of the coectio betwee HMI030 ad trip uit: 15 m For legths exceedig 15 m ad up to 300 m it is ecessary to: - set the uit HMI030 to Master mode ad use Modbus RS485 commuicatio iterface (termials 3 ad 4) - use the commuicatio module type Ekip Com, istead of the 24 V DC auxiliary voltage kit, for the coectio betwee HMI030 ad trip uit; HMI030 uit is to be coected to the System bus WS of the trip uit (cables W1 ad W2 of Ekip Com module) - set the followig commuicatio parameters of the trip uit: Address: 247; Baud rate: 19200; Parity: EVEN; Stop bit: 1. The coectio betwee trip uit ad HMI030 shall be achieved through twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: Belde 3105 cable type or equivalet). The shield shall be coected to earth at oe ed of the coectio. 36

39 - Display o pael frot with more uits HMI030 With this cofiguratio it is possible to coect up to four HMI030 uits to the same trip uit (o the same bus) if the followig coditios are complied with: - trip uit type Ekip E - LSIG; - each uit HMI030 has SW versio 3.00 or followig oes, it is cofigured i Master mode ad commuicates via the Iteral bus WI (termials 7 ad 8); - four differet operatig modes (Ammeter, Voltmeter, Wattmeter ad Custom) are selected for each HMI030. Priciple scheme Ekip E-LSIG Iteral bus WI 4 ABB solutio for bus commuicatio 24 V DC auxiliary voltage kit HMI030 RS=A RS=V RS=W RS=A, V, W... RS: Rotative Selector WI: Iteral bus of the trip uit (CAN iterface reserved for ABB devices; cables W3 ad W4 of the 24V DC auxiliary voltage kit) Maximum recommeded legth for the Iteral bus WI: 15 m For the legths exceedig 15 m ad up to 300 m it is ecessary to: - set each uit type HMI030 i Master mode ad use Modbus RS485 commuicatio iterface (termials 3 ad 4) - use the commuicatio module type Ekip Com, istead of the 24 V DC auxiliary voltage kit - use the System bus WS of the trip uit (cables W1 ad W2 of Ekip Com module) for the coectio of the trip uit to HMI030 uits - set the followig commuicatio parameters of the trip uit: Address: 247; Baud rate: 19200; Parity: EVEN; Stop bit: 1. For the wirig betwee the trip uit ad HMI030 uits, use twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: cable type Belde 3105 or equivalet). It is advisable that the shield is coected to earth at the ed of the coectio towards the trip uit. With Ekip LSI, Ekip LSIG or Ekip M-LRIU trip uits it is possible to coect o the same bus WI, up to two HMI030 uits o which two differet operatig mode have bee selected: Ammeter (A) ad Custom (A, V, W ). 37

40 Techical Applicatio Papers Moulded-case circuit-breakers type Tmax T4-T5-T6 4 ABB solutio for bus commuicatio With moulded-case circuit-breakers type Tmax T4-T5-T6 equipped with electroic trip uits PR222DS/PD, PR223DS ad PR223EF, the followig cofiguratios are possible: - Display o frot pael Q TI/L1 TI/L2 TI/L3 TI/N X3 24V W1 + (B) HMI Auxiliary voltage Vaux RS485 Bus (A) (B) (CAN_L) (CAN_H) Modbus cable (A) PR223DS Termials 1 ad 2 of X3 rear coector HMI030 i Master mode ad Modbus commuicatio W1: System bus of the trip uit Maximum recommeded legth for the System bus W1: 300 m The coectio betwee trip uit ad HMI030 shall be achieved through twisted pair cables, shielded ad with characteristic impedace equal to 120 Ω (e.g.: cable type Belde 3105 or equivalet). The shield shall be coected to earth at oe ed of the coectio. For the use i this cofiguratio the followig commuicatio parameters of the trip uit must be set: - address: Baud rate: bit/s - parity: EVEN - stop bit: 1. I this cofiguratio oly oe HMI030 ca be coected to the trip uit (o the System bus W1). 38

41 - Display o pael frot with more uits HMI030 It is possible to coect up to four HMI030 uits to the same trip uit (o the same bus) if the followig coditios are complied with: - PR223DS trip uit; - the followig commuicatio parameters of the trip uit are set: Address: 247; Baud rate: bit/s; Parity: EVEN; stop bit: 1; - four differet operatig modes (Ammeter, Voltmeter, Wattmeter ad Custom) are selected for each HMI030; - each uit HMI030 has SW versio 2.00 or followig oes ad is cofigured i Slave mode; Modbus RS485 commuicatio iterface is used (termials 3 ad 4); - MM030 uit is preset (supply with auxiliary supply voltage at 24 V d.c. (P=2.5 Priciple scheme PR223DS System bus W1 4 ABB solutio for bus commuicatio MM030 Accessory bus W3 HMI030 RS=A RS=V RS=W RS=A, V, W... RS:Rotative selector W1: System bus of the trip uit commuicatig with the Local bus (W2) of MM030 uit (termials 10 ad 11) W3: Accessory bus of MM030 uit (termials 13 ad 14) Maximum recommeded legth for the coectio betwee trip uit ad MM030 (System bus W1): 200 m; maximum recommeded legth for the Accessory bus W3: 300 m. For the coectios, use twisted pair cables, shielded ad with characteristic impedace equal to a 120 Ω (e.g.: cable type Belde 3105 or equivalet). I the coectio betwee trip uit ad MM030 device (System bus W1), it is advisable that the shield is earthed at the ed of the coectio towards the trip uit. Whe wirig Accessory bus W3, it is advisable that the shield is coected to earth at the ed of the coectio towards MM030 uit. As for wirig, the istructios of the product techical maual Flex Iterfaces for Accessory Bus should be followed. With PR223EF trip uits, up to three uits HMI030 ca be coected o which three differet operatig modes have bee selected: Ammeter (A), Voltmeter (V), ad Custom (A, V, W ). With PR222DS/PD trip uits up to two uits HMI030 ca be coected o which two differet operatig modes have bee selected: Ammeter (A) ad Custom (A, V, W ). I this cofiguratio, to maage the iformatio exchage betwee the trip uit ad HMI030 iterface devices, MM030 uit must be used. MM030 is a microprocessor-based device provided with two differet commuicatio buses: - oe Local bus (W2), for the coectio ad commuicatio with the trip uit (via the System bus W1 of the trip uit); - oe Accessory bus (W3), for the coectio ad commuicatio with HMI030 uits. Thus MM030 receives the data from the trip uit (via the bus W2) ad seds it to the visualizatio uits HMI030 coected to it (via the bus W3) so that it is possible to display o the pael frot the measured electrical quatities. For more detailed iformatio see the product techical maual Flex Iterfaces for Accessory Bus (documet code: 1SDH000622R0001). 39

42 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.7 Modbus RS-485 etwork (Rules for a correct wirig) The wirig of the idustrial commuicatio systems presets some differeces i compariso with that used for power cablig ad this may put ito difficulties the istaller if he is ot experieced i Modbus commuicatio etworks. A Modbus RS-485 system puts ito commuicatio a Master device with oe or more Slave devices. From ow o, oly ABB SACE low voltage circuit-breakers shall be cosidered as Slave devices, eve if wirig is similar for all Modbus devices. Here is a presetatio of the mai rules to comply with for the wirig of this type of etworks. Circuitbreaker Emax Trip uit PR122/P e PR123/P Emax X1 PR332/P e Tmax T7/T7M PR333/P Tmax T4-T5-T6 SACE Tmax XT2 - XT4 PR222DS/PD PR223EF PR223DS Ekip E-LSIG Ekip LSIG Ekip LSI Ekip M-LRIU Termial A (-) Termial B (+) Note W1 W2 CB delivery termial box or slidig cotacts W1 W2 CB delivery termial box or slidig cotacts X3/1 X3/2 termials 1 ad 2 of the rear coector X3 cable W1 cable W2 - cables W1 ad W2 outgoig from Ekip Com module (with fixed circuit-breaker); - cables W1 ad W2 outgoig from fixed part (the socket) of JF3 coector for withdrawable circuit-breakers; - cables outgoig from clamps 1 (for W1) ad 2 (for W2) of the fixed part (the socket) of the 6-pi (XC5) plug-ad-socket adapter o the back of the pael for plug-i circuit-breakers. This table shows the iformatio give i the wirig diagrams of Aex C. 1. Coectio port Each device is equipped with a commuicatio port with two termials, covetioally called A ad B. The commuicatio cable is coected ito these two termials, so that all the devices ivolved by the commuicatio are coected i parallel. All the termials A ad B shall be coected together, respectively A to A ad B to B; i case of reversed coectios A to B of a device, besides makig commuicatio impossible for them, the whole commuicatio system might ot work properly due to the cotiuous icorrect voltages preset o the device termials badly coected. I ABB SACE circuit-breakers, the commuicatio termials are represeted as show i the followig table: Figure 23: Electrical wirig diagram of a Emax ad a Tmax to the Modbus etwork Mai cable Mai cable Termial resistor Termial resistor TR TR Auxiliary termials A B A B W1 W2 X3/1 X3/2 PR123/P CB termial box or slidig cotacts PR223DS Termials 1 ad 2 of the X3 coector Emax termial box Termial box of the X3 coector 40

43 I order to avoid errors whe may devices are coected, it is advisable to use the same color for all the wires coected respectively to the termials A ad B of the differet devices (e.g. white for A ad blue for B); this makes easier the idetificatio of reversed wirig. Also o the Master device, whatever it is, the commuicatio port has two coectios which correspod to A ad B. Some maufactures idicate them with Tx- ad Tx+, or with Data- ad Data+, or simply with RS-485+ ad RS Device coectio Ulike what happes i may eergy distributio systems, the modality of coectio i parallel of the devices must be take ito accout. The system RS-485, used for Modbus commuicatio of ABB SACE circuit-breakers, requires a mai cable (bus or backboe) with legth ot exceedig 700 m, to which all the devices must be coected through braches (called also stubs) as short as possible. For ABB SACE circuit-breakers the stubs shall ot exceed the maximum legth of 1 m. The presece of loger stubs could cause reflectios of the sigals with the possible iductio of disturbaces ad cosequet errors i the data receptio. Figure 23a shows the example of a correct bus coectio. S tu Figure 23a: Network with bus structure b Backboe Figure 24: Examples of wrog bus coectio I max = 1 m O the cotrary, Figure 24 shows some examples of wrog bus coectio. 4 ABB solutio for bus commuicatio 41

44 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 3. Maximum distace ad maximum umber of devices The mai bus shall have a total maximum legth of 700 m. This distace does ot iclude the stubs (which, however, must be short). The maximum umber of devices which ca be coected to the mai bus is 32, Master icluded. 4. Use of repeaters I order to icrease the extesio of the Modbus etwork, repeaters ca be used. They are devices which amplify ad regeerate the sigals ad have two commuicatio ports trasferrig sigals from oe port to the other oe. Whe usig a repeater, the mai cable is divided ito differet segmets, each of which ca reach a legth of 700 m ad coect up to 32 devices (this umber icludes the repeaters). The maximum umber of repeaters which is advisable to coect i series is 3. A larger umber may cause excessive delays i the commuicatio system. 5. Type of cable to be used The cable to be used is a shielded twisted pair cable (type for telephoe). ABB SACE recommeds a cable type Belde 3105A, but it is possible to use also other cables with equivalet characteristics. The pair cable is formed by two isulated coductors twisted together. This helps to improve the immuity agaist electromagetic disturbaces, because the cable forms a series of coils, each of them tured i the opposite directio with respect to the followig oe: thus, a possible magetic field i the eviromet passes through each pair of coils i the opposite directio ad cosequetly its effect is very reduced (theoretically, the effect o each coil is exactly cotrary to that o the followig oe ad therefore the resultig effect is cacelled). The shieldig ca be braided (formed by a mesh of fie coductig wires) or foil (cosistig i a metal foil wrapped aroud the coductors): the two types are equivalet. 6. Coectio to the termials Figure 25: Detail of a shielded twisted pair cable I some coutries it is allowed to isert two cables ito the same screw termial. I such case, it is possible to coect the mai cable directly to the termials of the circuit-breaker, without a stub as show i Figure 26. Figure 26: Coectio of the mai cable directly to the termials of the circuit-breakers Istead, if each termial ca hold a sigle wire oly, it is ecessary to create a real stub by usig three auxiliary termials for each circuit-breaker to be coected, as show i Figure 27. Figure 27: Coectio to the circuit-breaker through auxiliary termials Mai cable L 1 m Mai cable L 1 m Sheath Shield (foil type) Twisted pair Shield groudig Emax termial box Termial box of the X3 coector 42

45 7. Groudig of shieldig The shield of the cable must be coected to groud at a sigle poit. Usually groudig is at oe ed of the mai cable. Figure 28 shows some correct ad icorrect examples of groudig. Figure 28: Examples of correct ad icorrect groudig of shieldig TR TR W1 A W2 PR123/P B W1 A W2 PR123/P B A X3/1 X3/2 PR223DS B OK! TR TR 8. Termiatig resistors I order to avoid reflectios of the sigal, a 120 Ohm termiatig resistor must be mouted at both eds of the mai cable. A iteral termiatig resistace is ot provided for ABB SACE devices type ew Emax, Emax X1 air circuitbreakers ad Tmax moulded-case circuit-breakers. If other devices are coected i additio to ABB SACE circuit-breakers, it is ecessary to verify whether they are equipped or ot with termiatig resistors (i this case, it is usually possible to activate or deactivate it). Termiatig resistors must be used oly at both eds of the mai cable. If the total legth of the mai cable is lower tha 50 m, the termiatig resistors at both eds of the mai cable ca be avoided. 9. Coectio to a persoal computer If the master used is a persoal computer, the coectio to the bus geerally occurs through a serial coverter RS-232/RS-485 as show i the followig Figure. 4 ABB solutio for bus commuicatio A B W1 W2 PR123/P A B W1 W2 PR123/P A B X3/1 X3/2 PR223DS 10. Lie polarizatio Be sure that the master implemets the polarizatio of the lie.lie polarizatio must be always implemeted by the master. For depth-i iformatio see the Stadard Applicatio Guidelies for TIA/EIA-485-A. Figure 29: Coectio of a PC to the bus through a serial coverter RS-232/RS-485 ILPH RS-232/RS

46 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Modbus RTU system fuctioig The traffic of iformatio o the bus is maaged through a procedure type Master/Slave with a PC or PLC as Master ad the circuit-breakers as Slaves. The Master defies all the traffic o the bus ad oly it ca start the commuicatio. It trasmits data ad/or commads to the Slaves ad requires them to sed the data i their tur. The Slaves trasmit o the etwork oly whe required by the Master. The Slaves caot commuicate betwee them directly: for istace, i order to trasfer a datum from oe Slave to aother oe, it is ecessary that the Master reads the datum from the first Slave ad the trasfer it to the secod oe. However, i the applicatio cotext of ABB SACE circuitbreakers this operatio is ever ecessary. The commuicatio sequece betwee each circuit-breaker (Slave) ad the PC (Master) occurs as follows: 1) the PC seds a commad 8 or a query o the bus 2) the queried circuit-breaker seds a respose by performig the appropriate actio, which may be: - performig the commad received; - givig the required data or - iformig the Master that its query caot be satisfied. The circuit-breakers are queried by the PC with cyclic pollig, that is cyclically oe after the other, so that the complete scaig of the plat is carried out withi a predictable time (pollig time). 8 The commad or the request icludes the idetificatio code of the circuit-breaker to which the commuicatio has bee set; therefore, though the trasmissio is received by all the devices coected to the etwork, oly the ivolved device shall sed a respose. For istace, supposig we wat to read the curret values from 6 Tmax circuit-breakers equipped with the electroic trip uit PR222DS/PD. For the commuicatio sequece betwee each circuitbreaker ad the PC, the followig times are assumed: - query time tq (time ecessary for the PC query to the circuit-breaker): 7ms - time iterval, dt, betwee query ad respose: 43ms - respose time tr (time ecessary for the circuitbreaker respose to the PC): 9ms. Uder these suppositios, the query time for each circuitt pollig = 354 ms Q1 R1 Q2 R2 Q6 R6 Q1 tq dt tr tpc Q = QUERY (query of the PC to the circuit-breaker) MODBUS - query LAN etwork RS232 R1 t Modbus RTU R = RESPONSE (respose set by the circuit-breaker to the PC) MODBUS - respose LAN etwork RS232 Modbus RTU 44

47 breaker is about 59ms ad, cosiderig it costat for all the circuit-breakers, the pollig time for each commuicatio cycle shall be about: 59 6 = 354ms. Whe calculatig the pollig time, the processig time of the PC, tpc, - that is the time elapsig betwee the ed of the RESPONSE of a circuit-breaker ad the start of the QUERY set by the PC to the ext circuit-breaker - is cosidered egligible. To implemet a commuicatio etwork amog more slaves i Modbus RTU protocol (it does ot matter if measurig istrumets, protectio circuit-breakers or temperature cotrol uits), it is fudametal to have the possibility of settig the same commuicatio parameters o all devices preset i the etwork. These parameters are: - speed of data trasmissio, called baud rate: (e.g.:19200 bps) - data bit (o. of bits): 8 - parity bit : Eve/Odd/Noe - stop bit: 1 (whe parity bit = eve or odd) or 2 (whe parity bit = oe) - address of each slave. Oce the same baud rate, parity bit ad stop bit have bee set, ad after havig idetified each slave device with its ow sigle address, it is possible for the master to proceed with the acquisitio of the iformatio. NOTE: A detailed descriptio of the Modbus commuicatio protocol ca be foud o the website 4 ABB solutio for bus commuicatio 45

48 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.8 Ekip Coect software Ekip Coect is a software applicatio for persoal computers (with Microsoft Widows operatig system) which allows data to be exchaged betwee oe or more ABB low voltage equipmet. This software ca be used for: - commissioig, testig ad moitorig of the Modbus RS-485 etwork ad of the relevat coected devices; - detectio of faults ad aomalies i a commuicatio etwork already active; - iteractio ad data exchage with the electroic trip uits equipped with Modbus commuicatio iterface. This documet deals with the use of Ekip Coect software for the commuicatio betwee a PC ad oe or more ABB devices simultaeously coected i a serial bus. This cofiguratio, called Ekip Coect with serial lie, is used for commuicatio via Modbus RS-485 etworks with the electroic trip uits fitted with commuicatio module (e.g.: PR12X/P with PR120/D-M module for Emax, Ekip Ekip LSI, Ekip LSIG, Ekip M-LRIU ad Ekip E-LSIG with Ekip Com module for SACE Tmax XT) ad with the electroic trip uits which have a itegrated commuicatio iterface (e.g.: PR223DS/EF, PR222DS- PD for Tmax T). To make the PC (o which Ekip Coect is istalled) commuicate with the trip uits, it is ecessary to use a serial coverter for covertig from the physical level RS-485 (o the trip uit side) to the physical level through which you wish to coect to the PC (e.g.: RS-232, USB, Etheret). The commuicatio protocol to be used is Modbus RTU. 1) carry out a check ad a complete scaig of the commuicatio etwork Modbus RS-485 i order to idetify all coected devices ad to detect ay possible error of coectio or of settig of the commuicatio parameters (e.g.: address, baud rate, parity check) 2) iteract i real time with the followig devices: Device Circuit-breaker Trip uit SACE Ekip LSI + Ekip Com commuicatio module Tmax XT2-XT4 Ekip LSIG + Ekip Com commuicatio module Ekip M-LRIU + Ekip Com commuicatio module Ekip E-LSIG + Ekip Com commuicatio module Tmax T4 T6 PR222DS-PD PR223DS PR223EF Tmax T7 - Emax X1 PR332/P + PR330/D-M commuicatio module PR333/P + PR330/D-M commuicatio module New Emax E1 E6 PR122/P + PR120/D-M commuicatio module PR123/P + PR120/D-M commuicatio module Emax DC PR122/DC + PR120/D-M commuicatio module PR123/DC + PR120/D-M commuicatio module Emax E2/VF-E3/VF PR122/VF + PR120/D-M commuicatio module Flex iterface SD030DX Thermal magetic or basic electroic trip uits (for further details see clause 4.5) with the purpose of: - readig the iformatio (alarms, measures, parameters ad state) preset i the circuit-breakers; - modifyig the cofiguratio ad protectio parameters (thresholds ad trip times of the protectios) set; - sedig commads (e.g.: opeig ad closig) to the circuit-breakers. Ekip Coect is particularly useful for the commissioig, cofiguratio, moitorig, maiteace ad testig of the circuit-breakers equipped with Modbus commuicatio iterface. With Ekip Coect it is possible to: 46

49 4.8.1 Scaig of the system bus Thaks to this fuctio, the software carries out the automatic scaig of the Modbus RS-485 etwork ad idetifies all the devices coected to the bus. At the ed of the scaig operatio, the devices foud are displayed both i the Navigatio area - through a ode tree structure as well as i the Mai area. The devices coected to the etwork ca be viewed i the Mai area (see Figure 30), with their mai commuicatio parameters ad ay warig about potetial problems or cofiguratio errors detected i the scaig process (e.g.: two devices with differet baud rate or two devices with the same Slave Address), for a complete diagosis of the commuicatio etwork. Ekip Coect sigals i the Mai area also the presece of o-abb devices able to commuicate via Modbus RTU protocol, ad their relevat commuicatio parameters. Figure 31 shows a example of the ode tree structure of the Navigatio area, geerated after a scaig of the commuicatio etwork. The mai ode, at the first level, shows the Modbus etwork to which the differet devices are coected; the odes at the secod level idicate the devices (e.g.: the trip uits) coected to the commuicatio etwork; the odes at the third level idicate the iformatio, the data ad the alarms put at disposal by the selected trip uit (oe ode of the secod Level). Detailed iformatio ca be viewed i the Mai area ad i particular: - by selectig the ode at the first level, a summary of all the detected devices coected to the Modbus etwork ad of their relevat commuicatio parameters is displayed; - by selectig oe of the ode at the secod level, it is possible to view a summary of the mai commuicatio parameters (e.g.: COM port, slave address, baud rate) of the selected device (e.g.: a trip uit) ad of ay possible problem which has occurred durig scaig operatios; - by selectig the odes of the third level it is possible to view detailed iformatio ad data of the trip uit, to modify the commuicatio parameters ad the settigs of the protectios ad to sed commads to the circuit-breaker (see clause 4.8.2). 4 ABB solutio for bus commuicatio Figure 30: Scree shot of the Ekip Coect with the Navigatio area ad the Mai area geerated at the ed of oe scaig operatio Navigatio area Mai area Figure 31: Tree structure of the Navigatio area 1st Level 2d Level 3rd Level Nodes of the 3rd level 47

50 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Durig the testig of a switchboard equipped with devices which commuicate via Modbus ad desiged to be istalled i a plat provided with a supervisio system, the scaig of the system bus is particularly useful. I fact, this cotrol operatio allows wirig aomalies of the devices coected to the Modbus etwork, settig errors of the commuicatio parameters (e.g.: baud rate, parity, umber of stop bits, etc.) or cofiguratio errors of the coected devices (e.g.: logical address) to be detected; thus there is the possibility of correctig them at a stage whe the switchboard is ot i service yet. Thaks to these verificatios, i case of commuicatio aomalies of the supervisio systems of the plat durig commissioig of the switchboard, such problems caot be put dow to the circuit-breakers istalled i the switchboard Commuicatio with a sigle device Ekip coect offers some graphic displays through which it is possible to iteract with the electroic trip uits. The widows are displayed i the Mai area whe a ode (of the 3rd level) is selected from the Navigatio area. Some widows are associated with each trip uit ad they eable you to: - read the measuremets o the circuit-breaker ad o the protectio trip uit; - kow the circuit-breaker state (e.g.: ope/closed, coected/isulated); - display the protectio alarms; - read the electrical quatities measured i real time (e.g.: currets, voltages, power, eergy); - display the parameters of the protectio fuctios associated with the trip uit; - display the history data relevat to the last trips of the trip uit; - display the evet history ad measures stored by the trip uit. Moreover, through the graphic displays, it is possible: - sed opeig ad closig commads to the circuitbreaker; - sed CB reset commad (this commad, which is available for the moulded-case circuit-breakers with motor operator, switches the circuit-breaker from tripped to ope positio); - sed trip uit reset commads (to reset the sigals associated with the latest trip of the trip uit); - set the thresholds ad trip times of the protectios associated with the trip uit; - display the time-curret curves of the protectio devices; - sed the wik commads which activate the wikig of the display or the blikig of a LED of the trip uit; this to make easier the idetificatio of the circuit-breaker istalled i the plat. The quatity ad type of iformatio which ca be viewed through the graphic displays vary accordig to the type of trip uit ivolved. Here are show some of the available widows. 48

51 - Iformatio I this widow it is possible to read the geeral iformatio about the device (e.g.: stadard of referece, rated curret of the circuitbreaker, software versio, type of circuit-breaker, iformatio o the circuit-breaker state) ad to sed opeig/closig, trip uit reset commads ad the wik commad. To sed these commads it is ecessary to isert a password. Whe the device is set i local mode, the commads may ot be operated. 4 ABB solutio for bus commuicatio - Measures This widow shows the measures acquired i real time by the trip uit; the iformatio ad the type of electrical quatities which ca be displayed vary accordig to the type of trip uit ivolved (see Aex A). 49

52 Techical Applicatio Papers 4 ABB solutio for bus commuicatio - Measures history With the trip uits type PR122/P ad PR123/P for Emax ad PR332/P ad PR333/P for Tmax T7 ad Emax X1 it is possible to view the values of the followig electrical quatities: - the total active power (medium ad maximum value) - the phase at the maximum curret - the maximum curret value (RMS value) - the phase at the miimum ad maximum voltage - the phase at the miimum voltage ad the miimum voltage value - the total reactive power (medium ad maximum value) - the total apparet power (medium ad maximum value) measured i the last 24 periods of time which ca be set at itervals from 5 miutes (storage of the last 2 hours) 120 miutes (storage of the last 48 hours). With SACE Tmax XT4 circuit-breakers, thaks to the electroic trip uits Ekip E-LSIG, it is possible to view the maximum ad miimum values which the followig quatities have reached up to that momet: - phase currets (IL1 maximum value - IL2 maximum value -IL3 maximum value, IL1 miimum value -IL2 miimum value - IL3 miimum value); - curret i the eutral (INe maximum value, INe miimum value) (i the presece of the eutral); - lie-to-lie voltages (V12 maximum value - V23 maximum value - V31 maximum value, V12 miimum value - V23 miimum value - V31 miimum value); - lie-to-eutral voltages (V1N maximum value - V2N maximum value - V3N maximum value, V1N miimum value - V2N miimum value - V3N miimum value) (i the presece of the eutral); - frequecy (maximum value, miimum value); - total active power (Ptot maximum value, Ptot miimum value) ad, i the presece of the eutral, the active power o the three lies (P1 maximum value, P2 maximum value, P3 maximum value, P1 miimum value, P2 miimum value, P3 miimum value); - total reactive power (Qtot maximum value, Qtot miimum value) ad, i the presece of the eutral, the reactive power o the three lies (Q1 maximum value, Q2 maximum value, Q3 maximum value, Q1 miimum value, Q2 miimum value, Q3 miimum value); - total apparet power (Stot maximum value, Stot miimum value) ad, i the presece of the eutral, the apparet power o the three lies (S1 maximum value, S2 maximum value, S3 maximum value, S1 miimum value, S2 miimum value, S3 miimum value). 50

53 - Alarms This widow displays the alarm etries of the protectios associated with the trip uit ad the diagostic alarms associated with the circuit-breaker (e.g.: trip coil discoected or failed, curret sesors discoected). The quatity ad type of alarms which ca be displayed vary accordig to the type of trip uit with which iteractio occurs. 4 ABB solutio for bus commuicatio - Trip This widow offers the possibility of obtaiig more iformatio about the cause of trippig (e.g.: type of protectio tripped, values of the iterrupted currets, time ad date of trippig, cotact wear). Some trip uits allow access also to the iformatio associated with the previous trips. The quatity ad type of iformatio which ca be displayed vary accordig to the type of trip uit with which iteractio occurs. 51

54 Techical Applicatio Papers 4 ABB solutio for bus commuicatio - Settigs Through this widow it is possible to view ad set the values (thresholds ad trip times) of the protectio fuctios of the trip uit. The protectio fuctios which ca be viewed vary accordig to the type of trip uit with which iteractio occurs. - Time-curret curves Thaks to this fuctio it is possible to view the tred of the time-curret curves set for the mai protectio fuctios (L, S, I ad G). 52

55 - Statistics of the operatios performed by the circuit-breaker I this widow it is possible to display: the percetage of cotact wear, the total umber of operatios, the umber of maual operatios, the umber of protectio trippig, the umber of failed trips ad the umber of test trips, carried out by the circuit-breaker. The data which ca be viewed vary accordig to the type of trip uit with which iteractio occurs. 4 ABB solutio for bus commuicatio NOTE: For further iformatio about the use of the software Ekip Coect ad about the fuctios put at disposal see the User Maual Istructios for use for commuicatio software EKIP Coect compatible with low voltage circuit-breakers by ABB SACE (documet code: 1SDH000891R0002). 53

56 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.9 Example of product selectio for supervisio ad remote cotrol Cosider a LV distributio plat with supervisio of the type show i Figure 32, the supervisio system uses a bus etwork with Modbus protocol RTU o RS-485. At the cotrol level there is a PC o which a supervisio system is istalled; for the coectio of the PC to the bus a serial coverter RS-232/RS-485 is used. The persoal computer operates as SCADA acquirig, processig ad storig the data set from all the circuitbreakers. The field level cosists of the protectio circuit-breakers type SACE Tmax XT4, Tmax T4 ad Emax E1, equipped with the followig electroic microprocessor-based trip uits, respectively: - Ekip E-LSIG (QF4, QF5); - PR223DS (QF6 ad QF7); - PR123/P (QF2 ad QF3). Choice of products ad accessories for supervisio For the supervisio of the plat the followig devices are eeded: Emax E1 air circuit-breakers (QF2 ad QF3) equipped with: 1) PR123/P electroic trip uit; 2) PR120/D-M commucatio module; 3) PR120/V measurig module (mouted by default o PR123/P trip uit); 4) auxiliary power supply Vaux (see Aex B). SACE Tmax XT4 moulded-case circuit-breakers (QF4, QF5) equipped with: 1) Ekip E- LSIG electroic trip uit; 2) Ekip Com commuicatio module (see Aex C); 3) auxiliary supply voltage Vaux (see Aex B). 54

57 As it ca be oticed, with Ekip-E LSIG trip uit for SACE Tmax XT4 it is possible to measure voltages ad eergy without havig to use exteral measurig modules. Tmax T4 moulded-case circuit-breakers (QF6 ad QF7) equipped with: 1) PR223DS electroic trip uit; 2) X3 rear coector (see Aexes B ad C); 3) VM210 measurig module (see Aex D); 4) X4 rear coector (see Aex D); 5) auxiliary cotacts i electroic versio AUX-E (see Aex E); 6) auxiliary supply voltage Vaux (see Aex B) Choice of products ad accessories for remote cotrol To perform circuit-breaker remote cotrol the followig accessories are ecessary: For Emax E1 air circuit-breakers (QF2 ad QF3): 1) shut opeig release (YO) 2) shut closig release (YC) 3) geared motor for the automatic chargig of the closig sprigs (M) Moulded-case circuit-breakers SACE Tmax XT4 (QF4 ad QF5) 1) motor operator with MOE-E module (see Aex F). Moulded-case circuit-breakers Tmax T4 (QF6 ad QF7) 1) motor operator with MOE-E module (see Aex E); 2) AUX-E auxiliary cotacts i electroic versio (provided by default with MOE-E). 4 ABB solutio for bus commuicatio Figure 32: Supervisio ad cotrol system of a LV distributio plat Cotrol level RS-232/RS-485 coverter QF2 QF3 Field level QF4 QF5 QF6 QF7 55

58 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.10 ABB circuit-breakers i Profibus DP ad DeviceNet fieldbus EP010 fieldbus iterface uit allows the itegratio of ABB SACE circuit-breakers ito commuicatio systems with Profibus DP or DeviceNet protocol. EP010 establishes, together with the ABB itelliget coector type FBP FieldBusPlug, the coectio betwee a fieldbus ad the trip uit coected to its Modbus port. I particular, EP010 uit operates as gateway for the commuicatio betwee the FBP coector ad the electroic trip uit. As a cosequece, with each EP010 uit, the suitable LAN etwork coector FBP FieldBusPlug must be used; i particular, for each circuit-breaker to be itegrated ito the fieldbus the followig items are eeded: - EP010 uit + oe PDP22-FBP coector (for fieldbus Profibus DP); or - EP010 uit + oe DNP21-FBP coector (for fieldbus DeviceNet). The coectio of the circuit-breakers to the fieldbus is achieved as show i the figure. PLC Auxiliary power supply 24 V The coectio to the fieldbus is up to the customer. FBP coector EP010 Trip uit PLC Note: as regards the coectio betwee EP010 ad trip uit see Figure C.2 i Aex C. Next circuit-breaker 56

59 The same commuicatio system is used with other ABB products, such as: PLC, motor starters, uiversal motor cotrollers, softstarters ad positio sesors. Therefore it is possible to use circuit-breakers i idustrial automatio systems for the most differet applicatios, thus combiig the cotrol of a process with the cotrol of the electrical distributio plat which supplies it. Coectios to EP010 uit Female coector for FBP coector PE earth termial * PE VD TX Fault RESET EP010 PWR RX FBP - The Modbus cable which coects EP010 to the trip uit shall have the maximum legth of 1 m. - The PE termial of EP010 uit must be earthed. - The power supply at 24 V dc for EP010 uit is delivered through the FBP coector, which provides also bus commuicatio. The trip uit coected to EP010 shall be supplied by a auxiliary voltage Vaux at 24 V dc (for the electrical characteristics see Aex B). NOTE: For further iformatio see the followig documets: - Modbus/FBP Iterface - User ad Operator Maual (documet code: 1SDH000510R0001); - Modbus/FBP iterface Aex for PR223EF User ad Operator Maual (documet code: 1SDH000663R0001) Emax air circuit-breakers E1 E6, Emax X1 air circuit-breakers ad Tmax T7/T7M moulded-case circuit-breakers 4 ABB solutio for bus commuicatio Modbus termials (EP010) L (left) Modbus commuicatio termials of the trip uit/of the commuicatio module A (W1) 1 (right) B (W2) 2 3 L 1 Modbus port (termials L ad 1) for the coectio with the Modbus commuicatio termials, A ad B, of the trip uit/of the commuicatio module - As regards the commuicatio betwee the electroic trip uit ad EP010 uit, the coectio betwee the Modbus termials - A ad B of the trip uit/of the commuicatio module ad the Modbus termials - L (left) ad 1 (right) of EP010, must be made as show i the followig table: Profibus DP ad DeviceNet: supervisio ad remote cotrol Emax air circuit-breakers equipped with the electroic trip uits PR122/P or PR123/P are coected to EP010 uit through PR120/D-M commuicatio module as show i Aex C. Emax X1 air circuit-breakers equipped with PR332/P or PR333/P electroic trip uits ad Tmax T7 or T7M moulded-case circuit-breakers equipped with PR332/P trip uit are coected to EP010 through PR330/D-M commuicatio module as show i Aex C. For the air circuit-breakers type Emax E1 E6 ad Emax X1 ad for Tmax T7/T7M moulded-case circuit-breakers, there is oly oe versio of EP010 uit which is compatible with all the trip uits PR122/P, PR123/P, PR332/P ad PR333/P. For iformatio about the measures, data ad alarms placed at disposal by the trip uits type PR122/P, PR123/P, PR332/P ad PR333/P i the followig cofiguratios see Table A.4 of Aex A. As regards the remote cotrol operatios which ca be performed o the circuit-breaker see Table A.4 of Aex A, uder the etry Commads. All the commads from remote (via bus) ca be blocked by settig the trip uit to local mode. 57

60 Techical Applicatio Papers Emax E1 E6 (PR122/P-PR123/P electroic trip uits) 4 ABB solutio for bus commuicatio DeviceNet Profibus DP Supervisio ad remote cotrol Supervisio EP010 PR120/D-M PR122/P PR120/V PR122/P PR123/P YO M YC Emax X1 (PR332/P-PR333/P electroic trip uits) ad Tmax T7/T7M (PR332/P electroic trip uits) Supervisio ad remote cotrol Supervisio PR332/P SOR DeviceNet EP010 PR330/D-M PR330/V PR332/P PR330/R SCR M Profibus DP PR333/P For remote cotrol with Tmax T7 the motorizable versio type T7M is eeded. 58

61 - PR222DS/PD electroic trip uit DeviceNet Supervisio ad remote cotrol Supervisio Moulded-case circuit-breakers Tmax T4-T5-T6 Profibus DP ad DeviceNet: supervisio ad remote cotrol The moulded-case circuit-breakers type Tmax T4, T5 ad T6 with PR222DS/PD ad PR223EF electroic trip uits are coected to EP010 uit through X3 rear coector as show i Aex C. For Tmax T moulded-case circuit-breakers there are two differet versios of the uit EP010, each of them compatible with the suitable trip uit. I particular: - with PR222DS/PD trip uit, the EP010 idetified by the product code 1SDA059469R1 is used (see the Techical Catalogue Tmax. T Geeratio Low voltage moulded-case circuit-breakers up to 1600 A). - with PR223EF trip uit, the EP010 idetified by the product code 1SDA064515R1 is used (see the Techical Catalogue Tmax. T Geeratio Low voltage moulded-case circuit-breakers up to 1600 A). To perform the remote cotrol ad the mechaical implemetatio of the remote opeig ad closig commads, Tmax T4, T5 ad T6 moulded-case circuit-breakers must be fitted with MOE-E motor operator with electroic iterface ad AUX-E auxiliary cotacts i electroic versio. For iformatio about the measures, data ad alarms placed at disposal by the trip uits type PR222DS/PD ad PR223EF i the followig cofiguratios see Table A.5 of Aex A. As regards the remote cotrol operatios which ca be performed o the circuit-breaker see Table A.5 of Aex A, uder the etry Commads. All the commads from remote (via bus) ca be blocked by settig the trip uit to local mode. 4 ABB solutio for bus commuicatio EP010 Coector X3 PR222DS/PD AUX-E MOE-E Profibus DP - PR223EF electroic trip uit DeviceNet Supervisio Supervisio ad remote cotrol PR223EF AUX-E EP010 Coector X3 MOE-E Profibus DP PR223EF AUX-E Coector X4 VM210 59

62 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Moulded-case circuit-breakers SACE Tmax XT2-XT4 Profibus DP ad DeviceNet: supervisio ad remote cotrol SACE Tmax XT2 ad XT4 moulded-case circuit-breakers, equipped with the electroic trip uits type Ekip LSI ad Ekip LSIG are coected to EP010 uit through Ekip Com commuicatio module. For SACE Tmax XT2 ad XT4 moulded-case circuitbreakers, there is oly oe versio of EP010 uit, which is compatible with both the trip uits Ekip LSI ad Ekip LSIG. To carry out from remote the opeig/closig ad reset commads, SACE Tmax XT2 ad XT4 moulded-case - Ekip LSI ad Ekip LSIG electroic trip uits Supervisio circuit-breakers must be equipped with the motor operator with electroic iterface MOE-E (see Aex F). For iformatio about the measures, data ad alarms placed at disposal by the electroic trip uits Ekip LSI ad Ekip LSIG i the followig cofiguratios see Table A.6 of Aex A. As regards the remote cotrol operatios which ca be performed o the circuit-breaker see Table A.6 of Aex A, uder the etry Commads. All the commads from remote (via bus) ca be blocked by settig the trip uit to local mode. Supervisio ad remote cotrol DeviceNet EP010 Ekip Com Ekip LSIG MOE-E Profibus DP Ekip LSI NOTE: For more detailed iformatio o the dialogue fuctios ad o the characteristics of the products described i this clause referece has to be made to the relevat catalogues ad product techical mauals. 60

63 4.11 Measurig istrumets The measurig istrumets for the istallatio iside MV ad LV primary ad secodary idustrial distributio paels represet a ideal ehacemet of the ABB offer through which the pael ca be cofigured as fuctioitegrated system. ABB offer of digital istrumets provided with commuicatio fuctio icludes: - DMTME multimeters both i modular versio as well as i frot pael versio; - ANR etwork aalysers for a accurate cotrol of etwork quality; - MID certified eergy meters for moitorig of the eergy cosumptio of sigle loads ad of the plat; - TMD temperature cotrol uits for the cotrol of temperatures o the widigs of the power trasformers DMTME multimeters The multimeters of the DMTME series are digital multimeters which eable the mai electrical quatities to be measured (TRMS values) i 230/400 V a.c. three-phase etworks, the maximum, miimum ad average values of the mai electrical parameters to be stored ad the active ad reactive eergy to be metered. The multimeters of the DMTME series eable the same istrumet to be used as a voltmeter, ammeter, powerfactor meter, wattmeter, varmeter, frequecy meter, active ad reactive eergy meter ad hour meter, thus permittig sigificat savigs because both the size iside the paels as well as the wirig time ca be reduced. I the versio DMTME-I-485 the multimeter is provided with two digital outputs, which ca be programmed as alarm thresholds ad pulse outputs for remote cotrol of eergy cosumptio, ad with a serial port RS485. From the serial port RS485, several multimeters ad other digital istrumets ca be coected to a commuicatio etwork via Modbus RTU protocol (up to 32 measurig istrumets i additio to the master ca be coected). The mai techical characteristics of these devices are summarized i the followig table: 4 ABB solutio for bus commuicatio Rated voltage [V rms] % - 10% DMTME-72 ad DMTME-96 [V rms] % - 10% DMTME-72 ad DMTME-96 [V rms] % - 10% DMTME-72 [V rms] % - 10% DMTME-72 [V rms] % - 10% DMTME-96 [V rms] % - 10% DMTME-96 Frequecy [Hz] Power cosumptio [VA] < 6 Measuremet accuracy: Voltage ± 0.5% F.S. ± 1 digit i the rage Curret ± 0.5% F.S. ± 1 digit i the rage Active power ±1% ± 0.1% F.S. from cosφ = 0.3 to cosφ= -0.3 Frequecy ± 0.2% ± 0.1Hz from 40 to 99.9 Hz ± 0.2% ± 1Hz from 100 to 500 Hz Eergy meterig Maximum metered value for sigle phase MWh (Mvarh) with ka = KV = 1 Maximum metered value for three phase MWh (Mvarh) with KA = KV = 1 Accuracy Class idex 1 Commuicatio parameters: Protocol Modbus RTU Physical iterface RS-485 Baud rate 4800 bps, 9600 bps, bps Parity Odd, Eve, Noe Stop bit 0.1 Address NOTE: For more detailed iformatio, see the techical catalogue System pro M compact 61

64 Techical Applicatio Papers 4 ABB solutio for bus commuicatio ANR etwork aalysers Whe more advaced aalysis fuctios are required, to erich the rage of ABB frot-pael istrumets ANR etwork aalysers allow etwork parameters, alarms ad iformatio about other devices state to be measured ad recorded; it also allows addressig the data to remote supervisio ad cotrol systems. The software SW01 - which they are provided with represets a first-had tool for the remote visualizatio of the measures ad for recordig of the latter ad preprogrammed alarms directly o the user s PC. The performaces are top-level: - measuremet ad aalysis of more tha 60 electrical parameters; - voltage ad curret measures as true ad effective value ( true RMS ) with accuracy class idex 0.5; - remote commuicatio of measures accordig to differet modalities: programmable aalogue outputs, digital outputs for remote cotrol, programmable as threshold alarms or pulse outputs; acquisitio of the state of other devices i the pael; commuicatio protocols such as: Modbus RTU, Profibus DP, Etheret Modbus TCP/IP. Their use permits efficiet moitorig of the quality of the eergy i both sigle-phase ad three-phase distributio etworks through the istataeous ad historical aalyses of voltage variatios, supply iterruptios, ad of harmoics up to the 31st order ad through the display of the wave shapes of voltage ad curret. Their use allows also a optimizatio of the eergy costs through a accurate historical aalysis of eergy cosumptio i four tariffs. The mai techical characteristics of the ANR etwork aalysers are summarized by the followig table: Voltage (TRMS) Direct measuremet [V] Ratio trasformer rage ktv [V] Max overvoltage [V] 750, above this value it is ecessary to use a voltage trasformer Cosumptio [VA] 0,2 Iput resistor [MΩ] > 2 Curret (TRMS) 3 isolated iputs [A] Miimum curret value [ma] 0, Cosumptio [VA] 0,2 Max overcurret [A] 10 (100 A for 1 secod) Ratio trasformer rage kct 0, ,00 THD Voltage ad curret Up to the 31st harmoic Frequecy [Hz] Accuracy class Curret [%] < 0.5 (EN 61036) Voltage [%] < 0.5 Power [%] < 1 Power factor [%] < 1 Active eergy [%] < 1 (IEC ) Reactive eergy [%] 2 (IEC ) Commuicatio parameters: Protocol Modbus RTU Physical iterface RS-485 Baud rate 4800 bps, 9600 bps, bps Parity Odd, Eve, Noe Stop bit 0,.1 Address NOTE: For more detailed iformatio see the techical catalogue System pro M compact 62

65 Temperature cotrol uits They are used to moitor the temperature levels ad the vetilatio fuctios of electric machies, trasformers, motors, etc. Prevetive cotrol of temperature eables malfuctios ad overloadig to be avoided. Four PT100 type sesors are used to measure temperatures. For each measuremet chael two alarm levels (alarm-trip) ca be set; they switch two output relays for remote sigalig if a critical temperature level has bee reached. I additio, the uits eable the maximum values to be stored, each itervetio to be stored ad vetilatio iside the pael to be cotrolled. The temperature values ad the alarm state ca be remotely trasmitted through the serial output RS845 with Modbus RTU protocol. Auxiliary supply [V] ± 15% Power cosumptio [VA] 4 Measurig iputs PT100 RTD Measurig rage [ C] ± 2 C Trip delay hysteresis Measuremet display Outputs Outlet fuctios 5/2 s/ C 7 segmets LED The figure below shows the frot-pael temperature cotrol uit TMD-T4/96. The mai techical characteristics of TMD-T4/96 temperature cotrol uits are summarized i the followig table: 1 to 12 V d.c., 3 NO-CO-NC relays, 8 A resistive load alarm, trip, vetilatio, self-diagosis Programmable fuctios ALARM, TRIP, HOLD, FAN, T. MAX Commuicatio parameters: Protocol Modbus RTU Physical iterface RS ABB solutio for bus commuicatio Baud rate 2400 bps, 4800 bps, 9600 bps, bps Parity Odd, Eve, Noe Address Stadards IEC EN , IEC EN IEC 14.1, IEC EN NOTE: For more detailed iformatio see the techical catalogue System pro M compact 63

66 Techical Applicatio Papers 4 ABB solutio for bus commuicatio Electroic eergy meters The wide rage of ABB modular eergy meters for measurig eergy is show i the table below. For a descriptio of the specific techical characteristics of every sigle device, referece has to be made to the catalogue System pro M compact. The eergy meters ca be profitably used i both residetial/tertiary ad idustrial eviromets. ABB meters are approved ad certified i compliace with MID Europea Directive (Measurig Istrumets Directive) ad ca be istalled i eviromets where eergy must be measured for fiscal purposes. A typical example of the first case is offered by shoppig ceters where local eergy cosumptio ca be measured, a record of the history of cosumptio ca be created, the buildig ca be maaged remotely ad itegrated i a supervisio system provided with Modbus RTU protocol. Meters are offered with ibuilt commuicatio ( EQ meters Ax rage) or with a separate commuicatio adapter via the IR iterface. EQ meters C11 ODINsigle DELTAsigle EQ meters A41 EQ meters A42 Overall dimesios 1 DIN module 2 DIN modules 4 DIN modules 4 DIN modules 4 DIN modules Display LCD Backlit LCD LCD Backlit Pixel (LCD) Operatig voltage 230 V AC 230 V AC 230 V AC V AC Frequecy 50/60 Hz 50/60/16.7 Hz Max curret 40 A 65 A 80 A 80 A 6 A CTVT coected CTVT NOTE: For more detailed iformatio see the techical catalogue System pro M compact 64

67 The figure below shows the couplig betwee eergy meter ad Modbus adapter Modbus adapter NOTE: For more detailed iformatio see the techical catalogue System pro M compact Eergy meter 4 ABB solutio for bus commuicatio ODIN Meter DELTAplus DELTAmax EQ meters A43 EQ meters A44 6 DIN modules 7 DIN modules 7 DIN modules 7 DIN modules 7 DIN modules LCD LCD LCD Backlit Pixel (LCD) 230/400 V AC 57/ /500 V AC 57/ /500 V AC 100/ /690 V AC 50/60 Hz 65, 10 A 80, 6 A CT CTVT CTVT - CTVT 65

68 Techical Applicatio Papers 4 ABB solutio for bus commuicatio 4.12 Serial coverter RS485/RS232 The multifuctio serial coverter CUS is used i all cases i which it is ecessary to covert or maage the serial lies EIA -232 (RS-232), EIA-485 (RS-485) ad EIA-422 (RS-422). The commuicatio liks betwee devices usig these types of buses (such as for example PLCs, measurig ad cotrol istrumets, peripherals ad computers ruig specific software applicatios, etc.) ofte requires the type of serial lie to be coverted, the sigal o the lie to be amplified, differet parts of the commuicatio etwork to be isulated etc. Thus, CUS coverter is widely used thaks to its cofigurability ad operatioal flexibility which eable it to be used i the most differet applicatios. CUS esures the galvaically-isolated coversio betwee the RS-232 side, the RS side ad the supply source. The mai applicatios are: - multipoit data trasmissio etworks - log-distace serial liks - galvaic separatio of peripherals - extesio of RS-485 lies. The mai techical characteristics of CUS coverters are summarized i the followig table: Supply voltage [V] 230 V a.c. ± 20% Frequecy [Hz] Power cosumptio [VA] 7 max Power loss [W] 3.5 RS232 Coectio Sub-D 9 female poles (DB9) Max. RS232 lie legth [m] 15 Max. RS lie legth [m] 1200 Coectio of multidrop uits Max 32 NOTE: For more detailed iformatio see the techical catalogue System pro M compact 66

69 5 ABB circuit-breakers i Etheret TCP/IP etworks 5.1 Etheret Nowadays Etheret is the domiat techology i local etworks, for example those used i offices to itercoect persoal computers. However, Etheret applicatios are extedig to other areas, such as telephoy ad idustrial cotrol. The ame Etheret was used for the first time i 1970 to idicate a commuicatio protocol via radio amog differet computers. All the coected devices, shared the same trasmissio ad receptio chael. The a very simple mechaism was devised which allowed each device to trasmit - wheever ecessary without the presece of a arbitrator (master or cetral cotroller). The, the same mechaism was used to implemet Etheret etworks, like the preset oes, which coect computers via cable. I both cases, the purpose is to allow each ode of the etwork to trasmit withi a acceptable time, avoidig that two or more devices trasmit at the same time (there is a sigle chael ad, if the two trasmitters operate simultaeously, the iterfereces betwee the forwarded data will make them uusable). Here is a simple descriptio of how Etheret works: - whe a computer must trasfer a data packet, first it checks if aother computer is already trasmittig: if this is the case, it waits util the data trasfer is over; - whe the chael is free, the computer starts trasmittig; - if two computers begi data trasfer simultaeously, both realize it sice they detect a iterferece; the, both stop trasmittig ad wait a variable time radomly defied betwee a miimum ad a maximum, ad the try agai to trasmit; - after the trasmissio of a data packet, the seder must observe a miimum wait before trasmittig the ext oe. This precautio shall prevet that which must trasmit a lot of data i sequece from completely occupyig the etwork for a log time. The fact that the data are split ito packets esures access i sequece to the etwork to all coected devices. The described procedure offers several advatages: - Etheret is a peer-to-peer commuicatio system sice all devices are equal as regards commuicatio methods ad access to the trasmissio medium. I particular, the presece of a cetral cotroller to assig priority ad permissio to trasmit is ot ecessary. I additio to beig a critical elemet i case of fault, the cotroller should be cofigured with the data of the devices i the etwork: how may, which oes, trasmissio priority, etc., a operatio which is geerally complicated ad ot withi the user s reach; - all devices ca have access to the etwork wheever ecessary (whe they have some data to trasfer), ad leave the etwork free whe they do ot use it; - it is ot ecessary that priority or other parameters relevat to commuicatio are assiged to the sigle devices; - it is possible to add or remove devices at ay momet without disturbig the etwork activity ad without carryig out cofiguratio operatios (Note: additio or removal of odes, very commo i office eviromet, is rarer i idustrial eviromet); - crossed commuicatios are possible: the device A ca sed data to B ad the device C ca sed data to D without either of the two couples has to take ito cosideratio the other; - sice all devices are coected to the same bus, it is possible to trasmit oe to oe (broadcast) or oe to may devices (multicast); - as the traffic o the etwork icreases, the performaces (average trasmissio times) gradually get worse ad worse. I the course of the years these advatages have determied the developmet of a well-established techology: cables, hardware iterfaces, coectors ad mechaical compoets are largely stadardized, which allows a reductio i the total cost of the commuicatio system. The use of Etheret i idustrial cotrol systems is also based o stadardized compoets (e.g.: shielded twisted pair cable (STP), RJ45 coectors, which are widespread i Etheret idustrial applicatios eve if more suitable for office applicatios, or M12 coectors), but more resistat to mechaical ad thermal stresses, vibratios, high humidity, electromagetic iterfereces, dust ad chemical agets which might be preset i idustrial eviromets. For this reaso we geerally speak of compoets for idustrial Etheret. However, the described mechaism suffers some limitatios. The mai oe is the lack of certaity of trasfer times; sice a collisio is always possible, the time ecessary to trasmit a sigle datum caot be defiitely kow. The more collisios occur, the more frequetly the packets experiece delays. Because of the radom waitig time after a collisio, it is possible that may subsequet collisios occur (if both the devices radomly select the same delays) ABB circuit-breakers i Etheret TCP/IP etworks

70 Techical Applicatio Papers 5 ABB circuit-breakers i Etheret TCP/IP etworks It is theoretically possible, eve if little likely, that a packet may have to wait for a log time before beig delivered. Etheret is said to be the trasmissio system with o-determiistic delays, sice it is impossible to set a maximum time withi which a packet shall be trasmitted with absolute certaity. What is possible to do is to set the likelihood that the packet is trasmitted withi a defiite time. Due to this lack of determiism, Etheret caot be used i some applicatios where time cotrol must be extremely strict (for example real-time positio cotrol of electric drives). I all other cases, Etheret ca be used without problems provided that the cotrol or supervisio system adopted takes ito accout the ucertaity of the trasfer times. Eve if Etheret has bee origially developed as a bus, with all devices coected i parallel to the same cable, Figure 33: Star etwork with Switch Etheret curret Etheret systems are usually wired i a star topology. I the ceter of this type of etworks there is a Switch, which may be either passive (that is a device which simply coects the cables) or active, whe it is equipped with a electroic card. Active Switches ca store the addresses of the devices coected to their ports ad ca store the data packets i order to direct them from the seder to a specific recipiet, without ivolvig the other coected devices ad with the result of improvig the etwork performaces. Switches are used for routig withi local area etworks (LAN), amely etworks which coect computers ad termials physically ear oe aother, for example located i the same buildig. Switch 68

71 5.1.1 IP protocol The IP cotrol (Iteret Protocol) allows a device o a local etwork to commuicate with aother device located o aother local etwork, provided that the source etwork ad the destiatio oe are somehow itercoected. This itercoectio ca be realized with ay umber of itermediate etworks. The protocol is based o the presece of routig devices (router 8 ) which make the packet be delivered from oe etwork to the other up to destiatio. The power ad the utility of the IP protocol is that it is ot ecessary for the seder to kow the pathway that the data packet shall follow to reach its destiatio. The IP system works like a mail system, carig that a data packet, marked with the recipiet address, travels up to its destiatio. As a matter of fact, the differet packets trasmitted by a seder could reach the same recipiet through differet pathways sice the routers could decide differet routes from time to time, accordig to the etwork situatio, traffic, etc. The IP cotrol describes i details: - what a device must do to sed a data packet to aother device or to sed a respose to a received packet; - the behavior of the devices which make the packets travellig from a etwork to aother oe to reach their destiatio. The details of the protocol are ot of our iterest ad are ot dealt with i this documet. It is eough to kow that the address of the recipiet ad the address of the seder, as well as those of each device coected to the etwork, cosist of 4 umbers (byte) i sequece, for example These umbers form the IP address; i the future versios of this protocol the IP address shall be exteded to 6 umbers. O a system of itercoected etworks, both a Iteret etwork as well as a Itraet compay etwork havig the same IP-based architecture, there caot be two devices havig the same IP address at the same momet. This is to guaratee that a address correspods to a sigle device. 8 A router is a device which determies the optimum route (commuicatio path) of some iformatio through a etwork (routig), that is the suitable path to route the data packets from a etwork to aother oe. As a matter of fact routers applyig IP protocol do ot have at their disposal all the iformatio about the route of the data packets, but oly a local piece of iformatio: o which path to route a packet iteded for a defied address. Before a device beig able to exchage data o a etwork, it is ecessary that it is assiged a distict IP address. This operatio ca be doe by the user/operator/ pael builder, who assigs the desired address ad verifies that there are o overlaps (the we speak of static IP address). Otherwise it is possible to have o the etwork a server which automatically assigs a free IP address to each device which is coectig to the etwork, i which case we speak of dyamic IP address. The mechaism of such automatic assigmet is described i the DHCP protocol (Dyamic Host Cofiguratio Protocol of addresses), which we do ot eed to aalyze thoroughly ow ad which is ot the subject of this documet. The mai differece betwee the two types of address is that, i case of static IP, the address is usually stored i a permaet memory ad therefore it does ot chage if the device is switched off ad the switched o, or discoected from ad the recoected to the etwork. But, i case of dyamic assigmet, a ew device, or a device which recoects after a discoectio, may be assiged ay of the free available IP addresses. As a cosequece, after ay shutdow or discoectio, the IP address of a device may chage. Idustrial cotrol systems usually require that each device has a defied address; cosequetly, static assigmet of the IP address is largely the most used system TCP protocol The TCP protocol (Trasmissio Cotrol Protocol) has the task to cotrol data trasmissio; each commuicatio (e.g.: sets of data, files or Web pages), exchaged betwee two devices is divided ito parts of similar legth, amed packets, ad each packet is separately set over the etwork to the destiatio device. Thaks to the TCP protocol, the recipiet is able to restore (i the correct order) the sigle packets received, thus recostructig the set commuicatio. I practice, through the IP protocol, a device is able to make a data packet reach ay device, whereas the TCP protocol uses the IP protocol to allow trasfer of structured data systems from a device to aother i a reliable ad correct way. For example, whe it is ecessary to trasfer a file or a Web page from a PC to aother oe, various operatios must be carried out; here is a simplified descriptio of the process: - a logical coectio must be established by sedig a series of packets to idicate the itetio of trasmittig a file ad eve idicatig the type ad dimesio of the file; a respose cofirmig that the other computer is ready to accept the trasmissio is set back; 5 ABB circuit-breakers i Etheret TCP/IP etworks 69

72 Techical Applicatio Papers 5 ABB circuit-breakers i Etheret TCP/IP etworks - the trasmittig computer, through the TCP protocol, shall split the file ito data packets, umber them ad, through the IP protocol, sed them oe after the other. Sice the trasmissio is carried out through the IP protocol, the packets might arrive with differet delays, or i a differet order with respect to the origial oe; - the receivig computer, through the TCP protocol, shall reorder the packets accordig to their umeratio ad check that all the packets have arrived; i case some packet has got lost, the recipiet shall ask the seder to trasmit it agai; - oce the correct ad complete receptio has bee verified, the two computers exchage some packets idicatig that the operatio has bee completed ad the logical coectio closed. As it ca be see, whereas the IP protocol relates to routig ad delivery of a sigle data packet, the TCP protocol is iteded for the use of data packets to trasmit the quatities of data required ad restore the received data. These two protocols are commoly used together, ad as a matter of fact TCP/IP is ofte referred to as a sigle protocol. The possibility of usig TCP/IP-based protocols is oe of the factors which cotributed to the spreadig of idustrial Etheret techology, for example for the automatio of productio systems or for the cotrol of electrical systems for the geeratio, distributio ad maagemet of electrical eergy. 5.2 Etheret idustrial protocols Whe wishig to use Etheret as commuicatio medium for idustrial cotrol, it is ecessary to specify i details what protocols are employed. I fact, Etheret ca be used for may differet applicatios, each of them havig a well-defied set of protocols. Idicatig that TCP/IP is used, which actually occurs i the most cases, does ot complete the picture. I fact, as previously metioed, TCP/IP defies a set of protocols which perform data trasport from oe device to aother, passig through oe or more itercoected etworks. But TCP/IP does ot give iformatio about the trasported data, or the applicatio usig them. For example, just cosider that TCP/IP is equally used to trasfer files (ftp protocol), Web pages (http protocol), electroic mail (SMTP protocol), ad videos to be show i real time (streamig); each of these applicatios has differet protocols. I a idustrial cotrol ad supervisio system, oce Etheret has bee chose as commuicatio medium ad TCP/IP as trasport protocol, the followig is still to be defied: - data format: e.g., how may bytes are trasmitted at a time? how are umbers represeted? - meaig of data: e.g., how ca a measure, a alarm idicatio or a cotrol sigal be distiguished? - behavior of the devices trasmittig ad receivig data: e.g.: how ofte does the trasmissio of a measure occur? what happes if a datum gets lost or arrives late? As it is evidet, the details to be described are umerous, such as the problems which may occur. Desigig this type of protocol requires a effort out of the reach of most maufacturers of devices ad systems. Besides, if each maufacturer of devices ad systems chose his ow solutio, there would be total icompatibility, thus udoig the mai advatage of Etheret ad TCP/IP: that of beig the stadard techologies which ca be used also to coect devices of differet maufacturers. For these reasos, i recet years, idustry has defied various stadard protocols for the use of Etheret i idustrial eviromets. At least a doze protocols are curretly widely spread ad about as may are used for particular applicatios. Ay developer of cotrol ad automatio systems chooses amog the available protocol that which better satisfies his applicatio requiremets. 70

73 5.3 Modbus/TCP protocol Developed i 1999, Modbus/TCP was oe of the first idustrial protocols to use Etheret ad TCP/IP. As the ame itself idicates, this is a adaptatio of the traditioal Modbus protocol (o a serial port) to the etworks usig TCP/IP. Its mai advatages are: - simplicity, which makes it easily implemetable both i ew devices as well as i adaptatios to existig devices; - similarity to the traditioal Modbus protocol, already kow by may programmers ad developers of cotrol ad supervisio systems; - existece of devices to itercoect, through Etheret etworks, devices usig the traditioal Modbus o a serial port; as you ca see below, these devices work by covertig the sigle telegrams. The cocept is quite easy: the master-slave architecture is replaced (see clause 4.7.1) with a cliet-server architecture. The sesor or actuator works as server, a device providig for other devices (the cliets) which require it, data to be read or memory spaces i which to write. This represetative model is the same as i the traditioal Modbus protocol, whose data are registers which ca be either read or writte. The cliet is the device wishig to read or write the data; to do it, it seds a request telegram to which the server replies with a respose telegram. The structure of the telegram is the same as i the traditioal Modbus, both as regards legth ad codificatio: - the request of readig cosists of a commad (idicated i the Fuctio Code ) specifyig the type of actio to be performed (e.g.: readig of the data) followed by the address of the register or registers to be read (the iformatio are icluded i the field Data of the telegram); - the request of writig comprises: commad (idicated i the Fuctio Code ), address ad data to be writte (icluded i the field Data ); - the respose telegrams, to idicate that the commad has bee successfully completed, repeat the commad (if ecessary followed by the required data); istead, if the commad caot be carried out, they iclude a error code (exceptio respose). The data format is the same as i traditioal Modbus, ad also the codes (Fuctio Code) used to idicate the readig ad/or writig fuctios ad the errors (exceptio respose code) are the same. This allows system developers to reuse a large part of the code already writte i order to implemet traditioal Modbus. Besides, this allows sigle telegrams to be coverted, with o eed to store additioal data ad without loss of iformatio. Figure 34: Traditioal Modbus telegram (Modbus RTU). Slave Address Fuctio Code Data CRC - Slave Address: this field cotais the address (Modbus) of the slave device coected to the traditioal Modbus serial lie; - Fuctio Code: this field cotais the code used to idicate the actios to be carried out (e.g.: fuctios of readig ad/or writig i the registers of the slaves); - Data: this field may cotai additioal iformatio useful to carry out the actios defied i the Fuctio Code ; for example, whe a master seds a request of data readig to a slave, the field Data of the telegram shall cotai the address of the register from which data readig must be started ad the umber of registers (data) to be read. If o errors occur, the respose telegram from the slave shall iclude i the field Data the data requested by the master; - CRC: field used to moitor ad maage the commuicatio errors. NOTE: For further iformatio see the documet: MODBUS Protocol Specificatio, available o 5 ABB circuit-breakers i Etheret TCP/IP etworks 71

74 Techical Applicatio Papers 5 ABB circuit-breakers i Etheret TCP/IP etworks From the traditioal Modbus telegram (e.g.: Modbus RTU), it is possible to get to a Modbus/TCP telegram by: 1) removig the fields Slave Address ad CRC from the traditioal Modbus telegram; 2) addig the MBAP Header (Modbus Applicatio Header) to the start of the message. As explaied hereafter, the field Slave Address is iserted i the field UitID of the Modbus/TCP telegram whe the server is a gateway for the coversio from Modbus/TCP to ModbusRTU protocol. The MBAP Header cotais the followig fields: - Trasactio idetifier: 2 bytes, set by the Cliet i the request ad duplicated by the Server i the respose, used to uivocally idetify a trasactio (a specific request set by the Cliet to the Server); Figure 35: Modbus /TCP telegram - Protocol idetifier: 2 bytes, to idetify the protocol (the Modbus protocol is idetified by the value 0); - Legth: this field (2 bytes) idetifies (couts) the legth (i bytes) of the subsequet fields preset i the message; - Uit Idetifier (hereafter called Additioal Address ): this field (1 byte legth) allows the Modbus map to be exteded, thus permittig a sigle server to aswer as if cosistig of differet devices (virtual uits). Whe the server is a gateway which coects a Modbus serial lie to a Etheret TCP-IP etwork, this field is used to idetify ay coected remote slave (see Figure 36). For further iformatio see the documet MODBUS Messagig o TCP/IP Implemetatio Guide V1.0b, available o Traditioal Modbus telegram (Modbus RTU) Slave Address Fuctio Code Data CRC MBAP Header Trasactio ID Protocol ID Legth Uit ID Fuctio Code Data Modbus/TCP telegram Figure 36: Etheret TCP/IP etwork - Modbus serial lie Modbus Cliet TCP/IP Modbus Cliet TCP/IP Etheret TCP-IP etwork Modbus Server TCP/IP Modbus Server TCP/IP Remote Slave 1 Remote Slave 2 Modbus serial lie Modbus Server TCP/IP (Gateway) 72

75 The Modbus/TCP telegrams cotai a field amed Additioal Address, which allows a sigle device (for example a gateway) to have a register map divided ito sectios (the sectio 1, 2, 3... of the register map correspods to the additioal address 1, 2, 3); this is used for the coversio betwee traditioal Modbus ad Modbus/TCP, as explaied hereafter. Both the cliet ad the server have a IP address. The server accepts Modbus/TCP telegrams (idicated with registered port ), from ay cliet; for each telegram a respose telegram is built, which is set to the IP address of the seder (that is the cliet). The TCP/IP protocol esures that: - the request telegram is trasferred from the cliet to the server ad vice versa; - each respose telegram is trasmitted to the uit/ device which has set the request ad is delivered to destiatio. 9 The port TCP 502 is specifically iteded for Modbus applicatios; the cliets ad the servers commuicatig via Modbus TCP/IP protocol, sed ad receive data o port 502 Figure 37: Request/respose sequece Cliet 1 IP address: Cliet 2 Modbus/TCP commuicatio occurs always through sigle telegrams; to each request oly oe sigle respose telegram correspods, which satisfies the server processig. This mechaism allows a device to serve simultaeously more applicatios, by respodig alteratively to differet cliets. For example, a cotrol applicatio ca read the data oce per secod, whereas a supervisio applicatio istalled o aother computer reads other data, always from the same server, oce per miute. Ay collisio i the trasmissio of telegrams is processed by the mechaism already preset i Etheret trasparetly for the applicatios. Whe the server receives request telegrams faster tha it ca reply, it stores them i queue ad aswers i sequece; each respose shall be correctly addressed to the cliet which has set the request. Server IP address: ABB circuit-breakers i Etheret TCP/IP etworks Iteret (TCP/IP) Respose Request Cliet. 73

76 Techical Applicatio Papers 5 ABB circuit-breakers i Etheret TCP/IP etworks 5.4 Serial Modbus -Modbus/TCP coversio There is ofte the requiremet to upgrade or modify a idustrial cotrol ad supervisio system by addig ew devices or by replacig the existig oes. I these cases, the protocols ad systems which allow these operatios to be performed with the least modificatios to the existig devices ad software are preferred. The structure of the Modbus/TCP telegram is particularly suitable for this purpose because: - to all itets ad purposes, the cotet of the Modbus/ TCP telegram, whe excludig what is ecessary to the delivery o TCP/IP, is a traditioal Modbus telegram; - the telegrams are always treated separately: every request telegram correspods to oe respose telegram oly. Therefore, it is possible to iterface the existig traditioal devices with Modbus/TCP systems by usig SD-GEM coverter. Such device allows a traditioal Modbus serial lie to be coected to a Etheret system sice it Figure 38: Slave Address ad Uit ID works as a server o the TCP/IP side, ad as a master o the serial side. From the poit of view of the Modbus/TCP, the coverter is see as a sigle device, with its ow register map divided ito sectios, each of them idetified by a Additioal Address (or Uit ID). Each sectio represets the traditioal device (the slave Modbus RTU), which has the slave address correspodig to the additioal address. Accordig to this represetative model, the coversio is operated through a quite simple mechaism: whe the coverter receives a request telegram, it takes the cotet without the TCP/IP part ad seds it as telegram o the serial port. To all itets ad purposes this telegram is a Modbus telegram destied to oe of the slave devices, which therefore shall reply with aother Modbus telegram. The coverter shall receive this respose, shall isert it as cotet ito a TCP/IP telegram ad trasmit it to the cliet (see Figure 38). Traditioal Modbus telegram (Modbus RTU) Slave Address Fuctio Code Data CRC Trasactio ID Protocol ID Legth Uit ID Fuctio Code Data Modbus/TCP telegram 74

77 Thus, a Modbus/TCP system ca have access to all data preset o the register map of ay Modbus traditioal device (e.g.: a automatic circuit-breaker coected o a Modbus serial lie). The followig Figures coceptually show a example of Figure 39: Readig of the currets o a Etheret TCP/IP etwork Request IP address: : Request Modbus serial lie Tmax T4 + PR223EF 8 Etheret TCP/IP etwork Tmax T4-T5 + PR223DS/PD readig of the curret values (i the three phases ad i the eutral) of a SACE Tmax XT4 160, equipped with a electroic trip uit type Ekip LSIG, i a Etheret TCP/ IP etwork. SD-GEM gateway operates simultaeously both as TCP/IP server as well as Modbus RTU master. Tmax T4 + SD030DX IP address: : SD-GEM Gateway 1 Emax E1-E6 + PR122 o PR123 + PR120/D-M SACE Tmax XT4 + Ekip LSIG or Ekip E-LSIG or Ekip LSI + Ekip Com 8 5 ABB circuit-breakers i Etheret TCP/IP etworks Figure 40: Readig of the currets o Etheret TCP/IP etwork Respose IP address: IP address: Respose Etheret TCP/IP etwork Gateway SD-GEM DATA 1 04 DATA Modbus serial lie Tmax T4 + PR223EF Tmax T4-T5 + PR223DS/PD Tmax T4 + SD030DX Emax E1-E6 + PR122 o PR123 + PR120/D-M SACE Tmax XT4 + Ekip LSIG or Ekip E-LSIG or Ekip LSI + Ekip Com : IP address of the cliet which has set the request ad which receives the respose; IP address of the server (SD-GEM) receivig the request; - 1 (Uit Idetifier or Additioal Address) of the circuit-breaker Tmax XT4 coected to a Modbus serial lie; - 04 (Fuctio Code): istructios for readig of currets (ru time values); - 100: umber of register from which readig of currets starts; - 8: umber of registers to be read (from register 100 to register 107) to get the curret values of the three phases ad of the eutral. - DATA: this field cotais the values of the currets i the phases (IL1, IL2, IL3) ad i the eutral (INe) read by the circuit-breaker. 75

78 Techical Applicatio Papers 5 ABB circuit-breakers i Etheret TCP/IP etworks 5.5 SD-GEM gateway SD-GEM is a gateway 10 which operates the coversio from Modbus/TCP protocol to Modbus RTU protocol, thus allowig ABB low voltage automatic circuit-breakers (with Modbus RTU commuicatio iterface) to be itegrated ito the supervisio systems o Etheret TCP/IP etworks (with Modbus TCP protocol). SD-GEM gateway is equipped with: 1) a stadard serial port RS-485 for the coectio to a Modbus serial lie. The field devices (e.g.: ABB circuit-breakers with commuicatio iterface), which commuicate through Modbus RTU protocol, are coected to this serial port. Such devices, coected i a bus etwork, must be commuicatio slaves, that is to say they are oly allowed to reply to the queries of the master ad they caot trasmit o their ow iitiative. From the side RS-485, SD-GEM operates as a Modbus RTU master (see clause Modbus RTU system fuctioig ). Maximum 31 devices ca be coected to the serial port RS ) a Etheret port for the coectio to Etheret TCP/IP etworks via Modbus TCP protocol. Thus, SD-GEM allows a cliet, which commuicates via a Modbus/TCP protocol (e.g.: a PC or a SCADA) coected to a Etheret TCP/IP etwork, to exchage data with the devices coected to a Modbus serial lie. From a cliet (e.g.: a PC) coected o a Etheret TCP- IP etwork it is possible to commuicate with a remote slave o a Modbus serial lie by specifyig the IP address assiged to SD-GEM ad the address (Uit Idetifier or Additioal Address) of the remote slave to be queried. As described i clause 5.4, SD-GEM coverts the Modbus/TCP messages comig from a cliet, ito Modbus RTU messages, ad deliver them, through its serial port RS-485, to the devices coected to the Modbus etwork (i particular to the device which has received the query by the PC). The queried device seds a respose to SD-GEM through a Modbus RTU message; oce the respose has bee received, SD-GEM coverts it from Modbus RTU to Modbus/TCP ad seds it via Etheret to the cliet which has set the query. 10 Gateways are appliaces used to coect differet devices over a etwork. They have their ow microprocessor ad process memory to maage the coversios of differet commuicatio protocols. A gateway is a iterface able to couple data trasmissio systems of differet type (e.g.: a Etheret TCP/IP Network with a Modbus RS485 serial Lie). A gateway usually eeds hardware support for the coectio to both systems ad a software for the coversio of the messages. 76

79 Figure 41: SD-GEM i Etheret TCP/IP etwork Etheret TCP/IP etwork Modbus RS-485 Tmax T4 + PR223EF Tmax T4-T5 + PR223DS/PD Tmax T4 + SD030DX SD-GEM Emax E1-E6 + PR122 o PR123 + PR120/D-M Etheret port RS-485 port SACE Tmax XT4 + Ekip LSIG or Ekip E-LSIG or Ekip LSI + Ekip Com 5 ABB circuit-breakers i Etheret TCP/IP etworks The devices equipped with iterface Modbus RTU o RS- 485 ca be coected to SD-GEM gateway. I particular, regardig ABB automatic circuit-breakers, the followig devices ca be coected: Device Circuit-breakers SACE Tmax XT2-XT4 Circuit-breakers Tmax T4, T5 ad T6 Circuit-breakers Tmax T7 - Emax X1 Circuit-breakers Emax E1 E6 Circuit-breakers Emax DC Circuit-breakers Emax E2/VF-E3/VF Trip uit Ekip E-LSIG + Ekip Com commuicatio module Ekip LSIG + Ekip Com commuicatio module Ekip LSI + Ekip Com commuicatio module Ekip M-LRIU + Ekip Com commuicatio module PR222DS-PD PR223DS PR223EF PR332/P + commuicatio module PR330/D-M PR333/P + commuicatio module PR330/D-M PR122/P + commuicatio module PR120/D-M PR123/P + commuicatio module PR120/D-M PR122/DC + commuicatio module PR120/D-M PR123/DC + commuicatio module PR120/D-M PR122/VF + commuicatio module PR120/D-M Sice SD-GEM carries out a geeric protocol coversio, i additio to automatic circuit-breakers, it is possible to coect to RS-485 port also ay other device which implemets Modbus RTU protocol, provided that it operates with the same parameters of the serial port (baud rate, umber of bits, parity bit, stop bit - see clause ad Aex G). For the commuicatio o Etheret TCP/IP etworks, please remember that it is ecessary to supply the trip uits with 24 V DC auxiliary voltage (for the relevat characteristics see Aex B). The data, alarms ad measures made available by each trip uit are summarized i Table A.1 (for Emax E1 E6, Emax X1 ad Tmax T7 circuit-breakers), i Table A.2 (for Tmax T4, T5 ad T6 circuit-breakers) ad i Table A.3 (for SACE Tmax XT2 ad XT4 circuit-breakers) of Aex A. Durig the operatio, SD-GEM must be supplied with 24 V DC auxiliary voltage. For more detailed iformatio please refer to the relevat catalogues ad product techical mauals. Flex iterface SD030DX Thermomagetic or basic electroic trip uit (for details see clause 4.5) 77

80 RXD M CTRL L TXD K BL J H 0V G CTRL-IN RS232 TXD RXD 24VDC PVR RS422/485 A TX+ B RX+ C 0V D TX- E RX- F BL SACE SACE SACE SACE SACE SACE Techical Applicatio Papers 6 Applicatio examples 6 Applicatio examples Here are some examples of applicatio of ABB SACE circuit-breakers, with dialogue optio, for: - supervisio of protectios ad switchig of circuitbreakers; - eergy costs allocatio iside a plat; - maagemet of priority ad o-priority loads of a istallatio. 6.1 Supervisio of protectios ad circuitbreaker switchig Take ito cosideratio a power plat. I these types of istallatio it is very importat to keep uder cotrol, besides the power productio process, also all the circuits which supply the auxiliary services (commad room, heatig system, circuit-breaker ad switch-discoector motors, fire prevetio system, ambiet lightig, outlets, etc.). These are low voltage circuits. The there is also a system with a emergecy geerator, which supplies the essetial services oly. Each switchboard has got, as mai circuit-breaker, a Emax equipped with PR122/P-PR123/P trip uit. PR123/P is used oly for the switchboards relevat to the essetial services which ca be supplied by the emergecy geerator, because it has the possibility of usig the dual settig fuctio: it ca store the settigs of the protectios, both for the ormal coditio with power supply from the etwork, as well as for the emergecy coditio, with power supply from the auxiliary geerator uit, ad to switch istataeously from oe to the other i case of eed. PR122/P ad PR123/P trip uits are all provided with Modbus commuicatio iterface (PR120/D-M auxiliary module) ad coected to the supervisio system. The supervisio system, iterfacig with the circuitbreakers over a bus commuicatio etwork via Modbus protocol, displays three types of iformatio relevat to Figure 42: Diagram of the auxiliary service of a power plat Supervisor PC RS-232/RS-485 coverter Power supply by etwork Emergecy geerator G Outlet Heatig system Autoclave Commad room Lightig system Circuit-breaker ad switch-discoector motors No-essetial services Essetial services 78

81 the auxiliary systems: - alarms for protectio overloads; - data relevat to the protectio trips (i case of trip, both the values of the iterrupted currets as well as the waveforms recorded by the trip uit i the iteral data logger, are displayed); - data relevat to the life of each circuit-breaker (umber of operatios ad percetage of cotact wear). The supervisio system reads cyclically the iformatio cotaied i each circuit-breaker via the commuicatio bus. The alarm ad trip data of the protectios are made available for the operators i the cotrol room ad stored i the history database of the supervisio system. Thaks to the available data it is possible to: 1) moitor i real time the state of the circuits supplyig the auxiliary services; 2) carry out a diagostic ad statistic aalysis of the occurred aomalies for a prevetive study o the fault causes i order to reduce the iefficiecies of the auxiliary systems, thus makig more efficiet the logistic maagemet of the plat. I additio, also the data relevat to the life of each circuit-breaker (e.g. umber of operatios carried out ad percetage of cotact wear) are trasferred over the local etwork to the database ad used to schedule the prevetive maiteace o the circuit-breakers i order to guaratee operatio cotiuity of the essetial services. 6.2 Allocatio of the eergy costs iside a plat I a maufacturig process it is very importat to kow the eergy cost associated to the differet maufacturig lies i order to allocate correctly the various maufacturig costs for each type of product. Take ito cosideratio a idustrial plat for the productio of cleasig agets with three differet maufacturig lies. Each lie produces oe type of deterget, distict due to compositio, packagig ad fial packig. These lies carry out similar maufacturig processes startig from various mixtures of raw materials. The three lies eed to produce differet quatities of product ad therefore also the ruig times are plaed idepedetly: at a defiite istat, oe of the lies ca work at full speed, while the others may ot be ruig. For a correct maagemet of the plat, it is ecessary to kow the eergy costs referred to each type of productio. I particular, the eergy supply costs to be take ito accout are: - the direct cost of eergy, proportioal to the umber of kwh cosumed by each maufacturig lie; - the pealties relevat to the reactive power, proportioal to the umber of miutes durig which the cosj of the plat has bee lower tha the value fixed by the power supply authority of the electrical etwork. 6 Applicatio examples 79

82 RXD M CTRL L TXD K BL J H 0V G CTRL-IN RS232 TXD RXD 24VDC PVR RS422/485 A TX+ B RX+ C 0V D TX- E RX- F BL SACE SACE SACE SACE SACE SACE Techical Applicatio Papers 6 Applicatio examples Descriptio of the distributio ad commuicatio system The electrical plat has a LV radial distributio structure. Each lie is supplied by meas of a process switchboard (QBT-PR), which delivers power to the real productio plat, ad a switchboard for the automatio of the packig system (QBT-AU), which supplies the machies for the bottlig ad hadlig of the packages. Each of the switchboards uses as mai circuit-breaker a Emax E2 equipped with the followig accessories: - PR122/P trip uit; - PR120/V voltage measurig module; - PR120/D-M Modbus commuicatio module. The trip uits are supplied at 24 Vd.c. by ABB switchig power supplies type CP-24/1 each oe of them positioed i a mai switchboard. All the mai circuit-breakers are coected, through a commuicatio bus RS-485, to a persoal computer o which the supervisio applicatio is istalled. The computer is, i its time, coected via a local etwork with the cotrol systems of the plat Fuctioig The presece of PR120/V modules allows the trip uit of each mai circuit-breaker to measure cotiuously active power, reactive power ad cosj relevat to its ow load. The trip uit is provided with a eergy meter i which the total active power value is stored momet by momet. All the above metioed products are available as iput registers accessible for readig via Modbus protocol. The supervisio applicatio carries out a very simple cycle which cosists i queryig each of the circuit-breaker, i readig the registers of total accumulated eergy ad i measurig the reactive power. For istace readig ca be made oce i 5 secs. Oce i 15 miutes, the applicatio program writes i a file the values of total eergy ad of average reactive power for each circuit-breaker. The, such values are read by the people resposible for cost allocatio, thus allowig to kow the use of active ad reactive power cosumed by the plat ad to share the costs amog the differet productio lies. LAN etwork U RS-232/RS-485 coverter QBT-PR1 QBT-AU1 QBT-PR2 QBT-AU2 QBT-PR3 QBT-AU3 M M M M M M M M M M M M Maufacturig lie 1 Maufacturig lie 2 Maufacturig lie 3 80

83 6.3 Maagemet of priority ad o-priority loads I a shoppig mall there are various refrigeratig rooms, each of them equipped with idepedet refrigeratio system. The refrigeratio system of each room is provided with its ow thermostat ad starts automatically ad idepedetly. Moreover, each refrigeratio system is able to ru i ormal mode (i steady state) or i fast mode whe the room is filled with ew products which eed to be cooled as quickly as possible. I this last case, a power peak occurs. The distributio system supplies, i additio to the refrigeratig rooms, also room lightig, air coditioig ad exteral emergecy lightig. The last is cosidered a o-priority load ad, whe ecessary, ca be discoected to reduce eergy cosumptio. The mai circuit-breakers QBT1 ad QBT2 of the subdistributio switchboards are Tmax T5 with PR222DS/ PD electroic trip uit (equipped with Modbus commuicatio iterface) moutig the auxiliary cotacts with electroic iterface AUX-E ad motor operator with electroic iterface MOE-E. The mai circuit-breakers QBT3 ad QBT4 of the sub-distributio switchboards are SACE Tmax XT4 with Ekip LSI electroic trip uit, Ekip Com commuicatio module (Modbus commuicatio iterface) ad motor operator with electroic iterface MOE-E. The circuit-breakers are all coected to the same Modbus commuicatio bus type RTU, whose master is a PLC AC500 with RS-485 iterface. The PLC implemets a applicatio software for the cotrol of loads: it reads cyclically the curret values from the mai circuit-breakers ad commads opeig of those of the o-priority loads, wheever the sum of the currets exceed a set threshold, or uder other programmed workig coditios. These coditios vary accordig to the time schedule, sice the kwh peak ca be differetiated for time bads (more expesive by day ad i the cosumptio peak hours, less expesive by ight). The load cotrol acts maily pursuig two aims: - to prevet the mai protectio of each sub-distributio switchboard from overload trippig; - i additio, if possible, to keep the load curve as low as possible i the hours whe the kwh cost is higher. 6 Applicatio examples PLC AC500 QBT1 QBT2 QBT3 QBT4 M M M M M M Refrigeratio system Air coditioig system Room lightig system Emergecy lightig system 81

84 Techical Applicatio Papers Aex A: Measures, data ad commads for supervisio ad remote cotrol Aex A: Measures, data ad commads for supervisio ad remote cotrol Supervisio with fieldbus Modbus RTU Table A.1: Measures-data-alarms ad commads available with Emax air circuit-breakers, X1 air circuit-breakers ad Tmax T7 moulded-case circuit-breakers Electric quatities State iformatio Maiteace data Protectios alarms Diagostic alarms PR122/P+ PR120/D-M E1 E6 T7-X1 X1 PR122/P+ PR120/D-M+ PR120/V PR123/P+ PR120/D-M PR332/P+ PR330/D-M PR332/P+ PR330/D-M+ PR330/V PR333/P+ PR330/D-M Phase currets (IL1, IL2, IL3), eutral curret (IN), groud curret Voltages (phase-to-phase, phase-to-eutral, residual) Total ad phase power (active P, reactive Q, apparet A) Power factor Peak factor (Ip/Irms) Frequecy Total ad phase eergy (active, reactive ad apparet) Harmoic aalysis (THDi, THDv ad spectrum) up to 40th harmoic (up to 35th with f= 60 Hz) Waveform of phase ad eutral currets Waveform of the lie-to-lie voltages Data logger Measures history (Imax) Measures history (Vmax, Vmi, Pmax, Pmea, Qmax, Qmea, Amax, Amea) Circuit-breaker state (ope/closed/tripped) Circuit-breaker positio (racked-i/test isolated) Sprig state (charged/discharged) Mode (local, remote) Protectio parameters set, parameters for the load cotrol Total umber of operatios ad trips Number of test trips ad maual operatios Number of trips separated accordig to each protectio fuctio Cotact wear (%) Data records of the last 20 trips Protectio L, S, I, G Directioal protectio D (timig ad trip) Protectio agaist ubalaced phase currets U (timig ad trip) Protectio agaist overtemperature of the trip uit OT Protectio agaist ubalaced phase voltages U (timig ad trip) Protectio agaist udervoltage UV (timig ad trip) Protectio agaist overvoltage OV (timig ad trip) Protectio agaist residual voltage RV (timig ad trip) Protectio agaist reversal of active power RP (timig ad trip) Protectio agaist uder-frequecy UF (timig ad trip) Protectio agaist over-frequecy OF (timig ad trip) Trip commad failed Cotact wear = 100% Ratig Plug error Trip coil (TC) discoected or damaged Curret sesors discoected Commads Circuit-breaker opeig/closig Alarm reset (trip reset) Settig of protectio curves ad thresholds Time sychroizatio of each circuit-breaker carried out by system Evets State chages of CB, protectios ad alarms (the latest 80) For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: Modbus system Iterface for Protectio relays PR122/P ad PR123/P + commuicatio module PR120/D-M, mouted o CB New Emax Protectio relays PR332/P ad PR333/P + commuicatio module PR330/D-M, mouted o CB Emax X1, Tmax T7 ad Tmax T8 (documet code: 1SDH000556R0001). Test isolated: positio i which the power cotacts are discoected, whereas the auxiliary cotacts are coected. 82

85 Supervisio with fieldbus Modbus RTU Table A.1A: Measures-data-alarms ad commads available with air circuit-breakers type Emax DC Electrical quatities State iformatio Maiteace data Protectio alarms Diagostic alarms Emax DC PR122/DC + PR120/D-M PR123/DC + PR120/D-M Plat curret Earth fault curret Voltage Total active power Active eergy (positive/egative) Total active eergy Measures history (Imax) Measures history (Vmax, Pmax, Pmea) Data logger CB state (ope/close/tripped) CB positio (coected/test isolated) Sprig state (charged/discharged) Mode (local, remote) Protectio parameters set, load cotrol parameters Total umber of operatios (from close to ope) Total umber of protectio trips Total umber of trip tests Number of maual operatios (with opeig commad) Number of trips accordig to each protectio fuctios Cotact wear (%) Data recordig of the latest 20 trips Protectio L (timig ad trip) L pre-alarm Protectio S (timig ad trip) Protectio I (trip) Protectio agaist overtemperature OT (pre-alarm ad trip) Protectio G (timig ad trip) Phase ubalace protectio U (timig ad trip) Udervoltage protectio UV (timig ad trip) Overvoltage protectio OV (timig ad trip) Reverse power protectio RP (timig ad trip) Failure of opeig mechaism (TRIP commad failed) Cotact wear = 100% Ratig Plug discoected Trip coil (TC) discoected or failed Cotrols CB opeig/closig commad Reset alarms (Trip reset) Protectio curve ad threshold settigs System time sychroizatio of each CB Evets State chages of CB, protectios ad alarms (the latest 80) Aex A: Measures, data ad commads for supervisio ad remote cotrol For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: Emax DC PR122DC-PR123DC + PR120/D-M Modbus System Iterface (documet code: 1SDH000841R0001). Test isolated: positio i which the power cotacts are discoected, whereas the auxiliary cotacts are coected. 83

86 Techical Applicatio Papers Supervisio with fieldbus Modbus RTU Aex A: Measures, data ad commads for supervisio ad remote cotrol Table A.1B: Measures-data-alarms ad commads available with air circuit-breakers type Emax VF Electrical quatities State iformatio Phase currets (IL1-IL2-IL3) Measures history (phase at maximum curret-imax) Data logger CB state (ope/close/tripped) CB positio (coected/test isolated) Sprig state (charged/discharged) Mode (local, remote) Protectio parameters set, load cotrol parameters Emax VF PR122/VF + PR120/D-M Maiteace data Total umber of operatios (from close to ope) Total umber of protectio trips Total umber of trip tests Number of maual operatios (with opeig commad) Number of trips accordig to each protectio fuctios Cotact wear (%) Data recordig of the latest 20 trips Protectio alarms Protectio L (timig ad trip) Pre-alarm protectio L Protectio I (trip) Protectio agaist overtemperature OT (pre-alarm ad trip) Diagostic alarms Failure of opeig mechaism (TRIP commad failed) Cotact wear = 100% Ratig Plug discoected Trip coil (TC) discoected or failed Cotrols CB opeig/closig commad Reset alarms (Trip reset) Protectio curve ad threshold settigs System time sychroizatio of each CB Evets State chages of CB, protectios ad alarms (the latest 80) For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: Emax VF PR122/VF + PR120/D-M Modbus System Iterface (documet code: 1SDH000922R0001) Test isolated: positio i which the power cotacts are discoected, whereas the auxiliary cotacts are coected. 84

87 Supervisio with fieldbus Modbus RTU Table A.2: Measures-data-alarms ad commads available with Tmax moulded-case circuit-breakers type T4, T5 ad T6 Electric quatities State iformatio Maiteace data Protectios alarms Diagostic alarms PR222DS/PD PR223EF PR223EF + VM210 PR223DS PR223DS + VM210 Phase currets (IL1, IL2, IL3), eutral curret (IN), groud curret (Ig) Phase-to-phase voltages (V12-V23-V31) Phase-to-eutral voltages (V1-V2-V3) Peak factor (L1-L2-L3-N) Frequecy Total ad phase power (active P, reactive Q, apparet S) Total power factor Total eergy (active, reactive, apparet) Circuit-breaker state (ope, closed, tripped) Mode (local, remote) Protectio parameters set Total umber of operatios Total umber of trips Number of test trips Number of maual operatios Number of trips separated accordig to the protectio fuctios L-S-I-G Number of trips separated accordig to the protectio fuctios EF-SOS Data records of the last trips Protectio I (trip) Protectio L, S, G (timig ad trip) Protectio EF, SOS (trip) Trip commad failed MOE-E overheatig Trip coil discoected or damaged Commads Circuit-breaker opeig/closig (with MOE-E) Alarms reset Circuit-breaker reset (with MOE-E) Settig of protectio curves ad thresholds Evets State chages of CB, of protectios ad of all alarms For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: - Istructio maual PR223EF Modbus System Iterface (documet code: 1SDH000566R0001) - Istructio maual PR223DS Modbus System Iterface (documet code: 1SDH000658R0001) - Istructio maual PR222DS/PD Modbus System Iterface (documet code: 1SDH000600R0001). Aex A: Measures, data ad commads for supervisio ad remote cotrol 85

88 Techical Applicatio Papers Supervisio with fieldbus Modbus RTU Aex A: Measures, data ad commads for supervisio ad remote cotrol Table A.3: Measures-data-alarms ad commads available with moulded-case circuit-breakers type SACE Tmax XT2-XT4 Electrical quatities (ru time values) Phase currets (I L1 -I L2 -I L3 ) Neutral curret (I Ne ) (1) Electrical quatities (values o demad) (4) Groud curret (I g ) Phase-to-phase voltages (V 12 -V 23 -V 31 ) Phase-eutral voltages (V 1N -V 2N -V 3N ) (3) Frequecy Total active power (P tot ) ad phase power (P 1, P 2, P 3 ) (3) Total reactive power (Q tot ) ad phase power (Q 1, Q 2, Q 3 ) (3) Total apparet power (S tot ) ad phase power (S 1, S 2, S 3 ) (3) Active eergy (positive/egative) Total active eergy Reactive eergy (positive/egative) Total reactive eergy Total apparet eergy Total power factor (cos φtot ) ad phase factor (cos φ1, cos φ2, cos φ3 ) (3) Harmoic aalysis i the phases ad i the eutral (spectrum of curret up to 11th harmoic at 50 Hz ad 60 Hz) THDi i the phases (L1, L2, L3) ad i the eutral (Ne) at 50 Hz ad 60 Hz Measure history Phase currets (I L1max, I L2max, I L3max, I L1mi, I L2mi, I L3mi ) State iformatio Maiteace data Protectio alarms Diagostic alarms Commads/Cofiguratios Ru Time evets Neutral curret (I Nemax, I Nemi ) (1) Phase-to-phase voltages (V 12max, V 23max, V 31max, V 12mi, V 23mi, V 31mi ) Phase-eutral voltages (V 1Nmax, V 2Nmax, V 3Nmax, V 1Nmi, V 2Nmi, V 3Nmi ) (3) Frequecy (maximum value, miimum value) Total active power (P totmax, P totmi ) ad phase power (P 1max, P 2max, P 3max, P 1mi, P 2mi, P 3mi ) (3) Total reactive power (Q totmax, Q totmi ) ad phase power (Q 1max, Q 2max, Q 3max, Q 1mi, Q 2mi, Q 3mi ) (3) Total apparet power (S totmax, S totmi ) ad phase power (S 1max, S 2max, S 3max, S 1mi, S 2mi, S 3mi ) (3) CB state (ope/close, tripped) CB reset positio Mode (local, remote) Protectio parameter settig (curves, times ad thresholds) Thermal memory activated Total umber of operatios (from closed to ope) Total umber of trips due to protectios Number of trip tests Number of operatios (from closed to ope) with opeig commad Number of trips failed Record data of the latest 20 trips Protectio I (trip) Protectio S (timig ad trip) Protectio L (timig ad trip) Protectio G (timig ad trip) Protectio R (rotor blocked) ad U (ubalace ad phase curret loss) (timig ad trip) Pre-alarm protectio L (5) Udervoltage protectio UV (timig ad trip) Overvoltage protectio OV (timig ad trip) Trip commad failed Trip coil discoected or failed CB ope/close (with MOE-E motor operator) CB reset (with MOE-E motor operator) Reset alarms (Trip reset) Trip test Protectio parameter settig (curves, times ad thresholds) Neutral cofiguratio (ON/OFF - 50%/100% of phases) Thermal memory eablig/disablig Rated voltage settig State chages of CB, of protectios ad of all alarms 1) Measuremets available with eutral coected (with four-pole CB or three-pole CB + CT for exteral eutral coductor) 2) Oly with Ekip LSIG trip uit 3) Measuremets available with eutral coected (with four-pole CB or three-pole CB + exteral eutral coductor) 4) Available iformatio upo request by sedig a commad 5) It sigals that 90%I1 < I < 120%I1 86

89 Ekip LSI + Ekip Com Ekip E-LSIG + Ekip Com Ekip LSIG + Ekip Com Ekip M-LRIU + Ekip Com XT4 (2) XT2 Ekip LS/I + Ekip Com TMD/TMA + Ekip Com (2) Aex A: Measures, data ad commads for supervisio ad remote cotrol 87

90 Techical Applicatio Papers Aex A: Measures, data ad commads for supervisio ad remote cotrol Supervisio with fieldbus Profibus DP ad DeviceNet Table A.4: Measures-data-alarms ad commads available with Emax air circuit-breakers, X1 air circuit-breakers ad Tmax T7 moulded-case circuit-breakers Electric quatities State iformatio Maiteace data Protectios alarms Diagostic alarms PR122/P+ PR120/D-M+ EP010 E1 E6 T7-X1 X1 PR122/P+ PR120/D-M+ PR120/V+ EP010 PR123/P+ PR120/D-M+ EP010 PR332/P+ PR330/D-M+ EP010 PR332/P+ PR330/D-M+ PR330/V+ EP010 PR333/P+ PR330/D-M+ EP010 Phase currets (IL1, IL2, IL3), eutral curret (IN), groud curret Voltages (phase-to-phase, phase-to-eutral, residual) Total power (active P, reactive Q, apparet A) Total power factor Frequecy Total eergy (active, reactive, apparet) Harmoic aalysis (THDi, THDv ad spectrum) up to 25th harmoic (odd order harmoics) Circuit-breaker state (ope, closed, tripped) Circuit-breaker positio (racked-i/test isolated) Sprig state (charged, discharged) Mode (local, remote) Protectio parameters set Total umber of operatios Total umber of trips Protectio L Protectio S Protectio I Protectio G Protectio agaist ubalaced phase currets U (timig ad trip) Protectio agaist overtemperature of the trip uit OT Protectio agaist ubalaced phase voltages U (timig ad trip) Protectio agaist udervoltage UV (timig ad trip) Protectio agaist overvoltage OV (timig ad trip) Protectio agaist residual voltage RV (timig ad trip) Protectio agaist reversal of active power RP (timig ad trip) Protectio agaist uder-frequecy UF (timig ad trip) Protectio agaist over-frequecy OF (timig ad trip) Directioal protectio D (timig ad trip) Trip commad failed Cotact wear = 100% Ratig Plug error Trip coil (TC) discoected or damaged Curret sesors discoected Commads Circuit-breaker opeig / closig Alarm reset (trip reset) For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: Modbus/FBP Iterface - User ad Operator Maual (documet code: 1SDH000510R0001). Test isolated: positio i which the power cotacts are discoected, whereas the auxiliary cotacts are coected 88

91 Supervisio with fieldbus Profibus DP ad DeviceNet Table A.5: Measures-data-alarms ad commads available with Tmax moulded-case circuit-breakers type T4, T5 ad T6 Electric quatities State iformatio Maiteace data Protectios alarms Diagostic alarms PR222DS/PD + EP010 PR223EF + EP010 For further iformatio about the electric quatities, the data ad the alarms available, referece must be made to the followig documet: Modbus/FBP Iterface - User ad Operator Maual (documet code: 1SDH000510R0001). PR223EF + VM210 + EP010 Phase currets (IL1, IL2, IL3), eutral curret (IN), groud curret (Ig) Phase-to-phase voltages (V12-V23-V31) Phase-to-eutral voltages (V1-V2-V3) Peak factor (L1-L2-L3-N) Frequecy Circuit-breaker state (ope, closed, tripped) Mode (local, remote) Protectio parameters set Total umber of operatios Total umber of trips Number of trips separated accordig to the protectio fuctio L-S-I-G Number of trips separated accordig to the protectio fuctio EF-SOS Number of test trips Number of maual operatios Protectio L (timig ad trip) Protectio S (timig ad trip) Protectio G (timig ad trip) Protectio I Protectio EF, SOS Trip commad failed MOE-E overheatig Trip coil discoected or damaged Commads Circuit-breaker opeig/closig (with MOE-E) Circuit-breaker reset (with MOE-E) Alarm reset Evets State chages of CB, of protectios ad of all alarms Aex A: Measures, data ad commads for supervisio ad remote cotrol 89

92 Techical Applicatio Papers Supervisio with fieldbus Profibus DP ad DeviceNet Aex A: Measures, data ad commads for supervisio ad remote cotrol Table A.6: Measures-data-alarms ad commads available with moulded-case circuit-breakers type SACE Tmax XT2-XT4 Electrical quatities Ekip LSI + Ekip Com + EP010 Ekip LSIG + Ekip Com + EP010 Phase currets (IL1, IL2, IL3) Neutral curret (INe) (1) Groud curret (Ig) State iformatio CB state (ope/closed) CB state (tripped) CB state (reset) Mode (local, remote) Protectio parameters set (curves ad thresholds of protectios) Thermal memory activated Maiteace data Total umber of operatios Total umbers of trips due to protectios Number of trip test Number of maual operatios with opeig commad Number of trips failed Record data of the latest 15 trips Protectio alarms Protectio I (trip) Protectio S (timig ad trip) Protectio L (timig ad trip) Protectio G (timig ad trip) Pre-alarm protectio L (2) Diagostic alarms Trip commad failes Trip coil discoected or failed Commads CB ope/close (with MOE-E motor operator) CB reset (with MOE-E motor operator) Reset alarms (Trip reset) Trip test Ru Time evets State chages of CB, of protectios ad of all alarms (1) Measuremet available with eutral coected (with four-pole CB or three-pole CB + CT for exteral eutral coductor) (2) It sigals that: 90%I1 < I < 120%I1 90

93 Aex B: Electrical characteristics of the auxiliary power supply The auxiliary supply must be provided from the outside, usig a galvaically isolated power supply. Sice a auxiliary voltage isolated from the groud is required, it is ecessary to use galvaically isolated coverters, complyig with the Std. IEC (UL 1950) or its equivalet Stds. (IEC ad CEI 64-8) which guaratee a commo mode curret or leakage curret (see Stds. IEC 478/1 ad CEI 22/3) ot exceedig 3.5 ma. Air circuit-breakers type Emax E1 E6, Emax X1 ad moulded-case circuit-breakers type Tmax T7-T7M As regards the air circuit-breakers type Emax, Emax X1 ad Tmax T7 moulded-case circuit-breakers, the auxiliary power supply is delivered to the termial box ad precisely to the termials K1 (for the pole + of the power supply) ad K2 (for the pole - of the power supply). The electrical characteristics of the auxiliary supply for the each circuit-breaker type is reported i the followig tables: Emax E1 E6 Electrical characteristics PR122/P- PR123/P PR122/DC- PR123/DC PR122/VF (2) Rated voltage 24 V dc ± 20% 24 V dc ± 20% 24 V dc ± 20% Maximum ripple ± 5% ± 5% ± 5% Irush ~ 10 A for 5 ms ~ 10 A for 5 ms ~ 10 A for 5 ms Rated ~ 170 ma (1) - - Rated 4 W (1) ~ 4 W (1) ~ 4 W (1) (1) Value referred to the supply of the trip uit PR12X/P or PR12X/DC or PR122/VF + PR120/D-M commuicatio module. (2) For the coectio of the auxiliary supply to the trip uit a shielded twisted pair cable (e.g.: cable type BELDEN 3105A/3105B) is to be used. The shield of the cable must be grouded at oe ed of the coectio towards the trip uit. As for the moulded-case circuit-breakers type Tmax T4, T5 ad T6, the auxiliary supply is provided to the trip uits PR222DS/PD, PR223EF ad PR223DS through the termials 3 ad 4 of X3 rear coector as show i the followig figure: Figure B.1: Wirig diagram of the auxiliary power supply coectio for P223DS trip uit. Q TI/L1 TI/L2 TI/L23 TI/N Circuit-breaker PR223DS X Auxiliary power supply Vaux + 24V - Termials 3 ad 4 of X3 rear coector Figure B.2: Auxiliary power supply for moulded-case circuit-breakers T4, T5 ad T6 Aex B: Electrical characteristics of the auxiliary power supply Emax X1 ad Tmax T7-T7M Electrical characteristics PR332/P-PR333/P Rated voltage 24 V dc ± 20% Maximum ripple 5% Irush 2 A for 5 ms Rated ~ 170 ma* Rated 4 W* (*) Value referred to the supply of: PR33X/P + PR330/D-M commuicatio module Auxiliary power supply Vaux Tmax moulded-case circuit-breakers: T4-T5-T6 The electrical characteristics of the auxiliary supply voltage Vaux are show i the followig table: X3 X 4 X 3 Electrical characteristics PR222DS/PD PR223DS PR223EF Rated voltage 24 V dc ± 20% 24 V dc ± 20% Maximum ripple ± 5% ± 5% Irush 1 A for 30 ms ~ 4 A for 0.5 ms Rated 100 ma ~ 80 ma Rated 2.5 W ~ 2 W 91

94 Techical Applicatio Papers Aex C: The commuicatio modules Moulded-case circuit-breakers: SACE Tmax XT2 - XT4 The auxiliary supply for the moulded-case circuit-breakers SACE Tmax XT2 ad XT4 is delivered to the Ekip Com module ad to the electroic trip uit through the cables marked with K1 (from the pole + of the power supply) ad K2 (from the pole of the power supply). The electrical characteristics of the auxiliary supply voltage Vaux are show i the followig table: Electrical characteristics Ekip LSI/LSIG Ekip E-LSIG Ekip M-LRIU Ekip Com Rated voltage 24V dc ± 20% 24V dc ± 20% Maximum ripple ± 5% ± 10% Irush 500 ma for 20 ms 1 A for 0.05 ms Rated 20 ma 22 ma ± 20% Rated 480 mw 530 mw Whe the electroic trip uit is used with Ekip Com commuicatio module, the power ad curret data are summed. 92

95 Aex C: The commuicatio modules Emax air circuit-breakers E1 E6 - PR120/D-M commuicatio module Protocol Physical iterface Baud rate Modbus RTU RS bit/s The commuicatio module is supplied directly through PR122/P/DC/VF-PR123/P/DC trip uit, which i its tur is supplied by the auxiliary power supply Vaux. The relevat techical data are show i the followig table. PR122*/PR123 PR120/D-M Supply auxiliary power supply 24 V dc ± 20% (galvaic isulated) from PR122/PR123 Maximum ripple 5% - Irush V ~ 10 A for 5 ms - Rated V ~ 130 ma + 40 ma Rated V ~ 3 W + 1 W (*) With PR122/VF trip uit, for the coectio of the auxiliary supply to the trip uit a shielded twisted pair cables (e.g.: cable type BELDEN 3105A/3105B) must be used. The shield must be earthed at the ed of the coectio towards the trip uit. - Coectio to the Modbus etwork PR122/P/DC/VF-PR123/P/DC trip uits are coected to the Modbus etwork through the commuicatio module PR120/D-M accordig to the diagram i the figure. Figure C.1: Wirig diagram for the coectio of PR12X/P to the Modbus etwork through PR120/D-M module Auxiliary power supply Vaux + 24V - (A) (B) EIA RS-485 iterface for Modbus etwork Iside PR120/D-M module there are the cotacts K51/YO (to cotrol directly the shut opeig release YO) ad K51/YC (to cotrol directly the shut closig release YC) to carry out the circuit-breaker opeig ad closig commads from remote. With PR120/D-M commuicatio module, the supply of the shut opeig ad closig releases YO ad YC must ot be derived from the mai supply ad ca have maximum voltage values equal to: V DC or V AC - Coectio to EP010 uit PR122/P ad PR123/P trip uits are coected to EP010 uit through the commuicatio module PR120/D-M. Figure C.2: Wirig diagram for the coectio of PR122/P-PR123/P to EP010 uit Auxiliary power supply Vaux EP010 L 1 K1 K1 + 24V - K2 K2 (A) W1 W1 (B) W2 W2 PR120/D-M EIARS-485 Modbus iterface for the coectio to EP010 PR122/P PR123/P CB termial box or slidig cotacts Aex C: The commuicatio modules K1 K1 K2 K2 W1 W1 W2 W2 CB termial box or slidig cotacts S33M/1..3 S75I/1..7 EIARS-485 Modbus cable S33M/1..3 S75I/1..7 PR120/D-M PR122/X PR123/Y Note: W1-W2: termials for the coectio of the Modbus cable K1-K2: termials for auxiliary power supply Vaux L-1: termials for the Modbus port S33M/1..3: cotacts sigalig sprig charged S75I/1..7: cotacts sigalig circuit-breaker racked-i (for CBs i withdrawable versio) The Modbus cable which coects EP010 to the trip uit shall have a maximum legth of 1 m. Note: W1-W2: termials for the coectio of the Modbus cable K1-K2: termials for auxiliary power supply Vaux S33M/1..3: cotacts sigalig sprig charged S75I/1..7: cotacts sigalig circuit-breaker racked-i (for CBs i withdrawable versio) X: P/DC/VF Y: P/DC With PR122/VF trip uit, for the coectio of the auxiliary supply to the trip uit, a shielded twisted pair cables must be used (e.g.: cable type BELDEN 3105A/3105B). The shield must be earthed at the ed of the coectio towards the trip uit. 93

96 Techical Applicatio Papers Aex C: The commuicatio modules Emax X1 air circuit-breakers ad Tmax T7 mouldedcase circuit-breakers - PR330/D-M commuicatio module Protocol Physical iterface Baud rate Modbus RTU RS bit/s The commuicatio module is supplied directly through PR332/P or PR333/P trip uit, which i its tur is supplied by the auxiliary power supply Vaux. The relevat techical data are show i the followig table. PR332/PR333 PR330/D-M Supply (galvaic isulated) auxiliary power supply 24 V dc ± 20% from PR332/PR333 Maximum ripple 5% - Irush V 2 A for 5 ms - Rated V ~ 130 ma + 40 ma Rated V ~ 3 W + 1 W - PR330/R actuator module Emax X1 ad Tmax T7 circuit-breakers ca operate opeig ad closig commads from remote cotrol whe, together with PR330/D-M commuicatio module, they are equipped with PR330/R actuator module too. This device allows such commads to be carried out through the iteral cotacts K51/SCR (to commad the shut closig release SCR) ad K51/SOR (to commad the shut opeig release SOR). See Figure C.3. - Coectio to Modbus etwork PR332/P ad PR333/P trip uits are coected to the Modbus etwork through PR330/D-M commuicatio module accordig to the diagram i the figure C.3. 94

97 Figure C.3: Wirig diagram for the coectio of PR33X/P to the Modbus etwork through PR330/D-M module K1 K1 Auxiliary power supply Vaux + 24V - K2 K2 W1 W1 (A) (B) EIA RS-485 iterface for Modbus etwork PR330/D-M W2 W2 + - C13 C13 K51/SOR C12 C3 C12 C3 SOR K51/SCR SCR C2 C2 PR330/R CB termial box or slidig cotacts Aex C: The commuicatio modules PR332/P PR333/P Q/1..6 S33M/1..3 S75I/1..7 Note: W1-W2: termials for the coectio of the Modbus cable K1-K2: termials for auxiliary power supply (Vaux) SOR: shut opeig release SCR: shut closig release K51/SOR: cotrol cotact for the shut opeig release K51/SCR: cotrol cotact for the shut closig release Q/5-Q/6: circuit-breaker auxiliary cotacts S33M/1..3: cotacts sigalig sprig charged S75I/1..7: cotacts sigalig circuit-breaker racked-i (for CBs i withdrawable versio) The supply of the shut opeig release (SOR) ad of the shut closig release (SCR) must ot be derived from the mai supply ad ca have maximum voltage values equal to: V DC or V AC 95

98 Techical Applicatio Papers - Coectio to EP010 uit Aex C: The commuicatio modules PR332/P ad PR333/P trip uits are coected to EP010 uit through the commuicatio module PR330/D-M. Figure C.4: Wirig diagram for the coectio of PR33X/P to EP010 uit Auxiliary power + supply Vaux EP010 L 1 - EIA RS-485 iterface for Modbus etwork + 24V - (A) (B) K1 K1 K2 K2 W1 W1 W2 W2 C13 C13 SOR C12 C12 C3 C3 SCR C2 C2 CB termial box or slidig cotacts K51/SOR K51/SCR PR330/R PR330/D-M PR332/P PR333/P Q/1..6 S33M/1..3 S75I/1..7 Note: W1-W2: termials for the coectio of the Modbus cable K1-K2: termials for auxiliary power supply (Vaux) L-1: termials for the Modbus port SOR: shut opeig release SCR: shut closig release K51/SOR: cotrol cotact for the shut opeig release K51/SCR: cotrol cotact for the shut closig release Q/5-Q/6: circuit-breaker auxiliary cotacts S33M/1..3: cotacts sigalig sprig charged S75I/1..7: cotacts sigalig circuit-breaker racked-i (for CBs i withdrawable versio) The Modbus cable which coects EP010 to the trip uit shall have a maximum legth of 1 m. The supply of the shut opeig release (SOR) ad of the shut closig release (SCR) must ot be derived from the mai supply ad ca have maximum voltage values equal to: V DC or V AC 96

99 X3 Tmax moulded-case circuit-breakers type T4-T5-T6 - Coectio to the Modbus etwork The coectio to the Modbus etwork of the mouldedcase circuit-breakers type T4, T5 ad T6 equipped with PR222DS/PD, PR223EF ad PR223DS trip uits is carried out through the termials 1 ad 2 of the dedicated X3 rear coector as show i the diagram of Figure C.5. Figure C.5: Wirig diagram for the coectio of PR223DS trip uit to the Modbus etwork through X3 coector Q TI/L1 TI/L2 TI/L3 TI/N Circuit-breakers PR223DS X V - Termials 1 ad 2 of X3 coector Auxiliary power supply Vaux Modbus cable (B) (A) - Coectio to EP010 uit The moulded-case circuit-breakers type T4, T5 ad T6, are coected to the uit EP010 through the termials 1 ad 2 of X3 rear coector. Figure C.7: Wirig diagram for the coectio of the uit EP010 of a Tmax circuit-breaker Q TI/L1 TI/L2 TI/L3 TI/N Circuit-breakers PR223DS X V - (B) (A) Auxiliary power supply Vaux 1 L EP010 The Modbus cable which coects EP010 to X3 coector shall have a maximum legth of 1 m. Aex C: The commuicatio modules Figure C.6: Coectio to the Modbus etwork of Tmax CBs T4, T5 ad T6 through X3 coector Modbus cable X 4 X

100 Techical Applicatio Papers Aex C: The commuicatio modules SACE Tmax XT2-XT4 moulded-case circuit-breakers Ekip Com commuicatio module Protocol Physical iterface Baud Rate Modbus RTU RS /19200 bit/s Ekip Com is the commuicatio iterface which allows you to: - coect Ekip electroic trip uits, with dialogue fuctio, ito the field bus Modbus RTU; - cotrol via remote MOE-E motor operator with electroic iterface; - detect the state (ope/closed/tripped) of the circuitbreaker. Ekip Com is available i two versios: oe for fixed/ plug-i circuit-breakers ad oe for withdrawable circuitbreakers. For the commuicatio o the Modbus etwork, a auxi- liary voltage (Vaux) up to 24 V DC is ecessary to supply the commuicatio module ad the electroic trip uit. As regards the electrical characteristics of the auxiliary supply voltage see Aex B. - Coectio to the Modbus etwork The electroic trip uits type Ekip E-LSIG, Ekip LSI, Ekip LSIG ad Ekip M-LRIU are coected to the Modbus etwork through Ekip Com commuicatio module. There are also the auxiliary cotacts Q/7 ad SY/3 built-i iside Ekip Com for electrical sigalig of circuit-breaker i ope/closed positio ad for circuit-breaker i tripped positio 11 (see Figure C.8) respectively. These cotacts make the iformatio about the circuit-breaker state available for the remote supervisio system. With the circuit-breaker i withdrawable versio the trip uit is coected to the Modbus etwork through W1 ad W2 cables comig out from the fixed part (the socket) of JF3 coector, housed i the fixed part of the circuitbreaker (see Figures C.8, C.9 ad C.10). 11 SY/3: cotact for electrical sigalig of circuit-breaker ope due to trippig of magetic/ thermomagetic trip uits, microprocessor-based trip uit (electroic type), shut opeig release, udervoltage release, residual curret release. Figure C.8: Wirig diagram for the electrical coectio to the Modbus etwork of the trip uits type Ekip E-LSIG, Ekip LSI, Ekip LSIG ad Ekip M-LIRU with Ekip Com module. Circuit-breaker i withdrawable versio. K1 Auxiliary termials Auxiliary power supply Vaux 24 V DC Auxiliary cotacts Q/7ad SY/3 K2 WS W2 W1 Digital sigals Modbus RS485 cable It is up to the customer: - wirig of cables (W1, W2, K1 ad K2) to the auxiliary termials; - choice ad wirig of the auxiliary termials, of the auxiliary supply ad of the Modbus RS485 commuicatio cable. 98

101 Figure C.9: Ekip Com module for SACE Tmax XT2 ad XT4 moulded-case circuit breakers i withdrawable versio Trip uit Cable for dialogue with the trip uit Movig part of JE3 coector Coector for dialogue with Ekip Com Ekip Com module Aex C: The commuicatio modules JE3-JF3: Coectors for the auxiliary circuits of the circuit-breaker i withdrawable versio; withdrawal of the coectors occurs simultaeously with that of the circuit-breaker. Movig part of JF3 coector Figure C.10: Coectio to the Modbus etwork of SACE Tmax XT2 ad XT4 circuit-breakers i withdrawable versio Modbus RS485 etwork Fixed part of the circuit-breaker Auxiliary power supply Vaux Movig part of the circuit-breaker W1 W2 Cable for the dialogue with the trip uit Ekip Com module K2 K1 Auxiliary termials Trip uit Plug of JE3 coector Plug of JF3 coector Socket of JE3 coector Socket of JF3 coector It is up to the customer: - wirig of cables (W1, W2, K1 ad K2) to the auxiliary termials; - choice ad wirig of the auxiliary termials, of the auxiliary supply ad of the commuicatio cable Modbus RS485. Whe the movig part of the circuit-breaker is iserted i the fixed part, the couplig betwee the socket (fixed part) of JF3 coector (iserted i the fixed part of the circuit-breaker) ad the plug (movig part) of JF3 coector (iserted i the movig part of the circuit-breaker), accomplishes wirig cotiuity for the coectio of the trip uit to the Modbus etwork. Couplig of the fixed part with the correspodig movig part of JE3 ad JF3 coectors accomplishes also wirig cotiuity to provide the auxiliary supply to Ekip Com module ad to the trip uit. 99

102 Techical Applicatio Papers Aex C: The commuicatio modules With SACE Tmax XT2-XT4 circuit-breakers i fixed versio, the trip uit is coected to the Modbus etwork through the cables W1 ad W2, accordig to the followig diagram: Fixed versio circuit-breaker Ekip E-LSIG Ekip LSIG Ekip LSI Ekip M-LRIU Ekip Com K1 K2 Auxiliary termials W1 W2 Auxiliary termials Auxiliary power supply Vaux Modbus RS485 cable It is up to the customer: - wirig of cables (W1, W2, K1 ad K2) to the auxiliary termials; - choice ad wirig of the auxiliary termials, of the auxiliary supply ad of Modbus RS485 cable. Figure C.11: Ekip Com module for molded-case circuit-breakers SACE Tmax XT2 ad XT4 i fixed versio Trip uit Ekip Com module Wires W1-W2-K1-K2 Cable for the dialogue with the trip uit Figure C.12: Coectio to the Modbus etwork of SACE Tmax XT2 ad XT4 circuit-breakers i fixed versio Modbus RS485 etwork Auxiliary power supply Vaux Auxiliary termials W1 W2 K2 K1 Auxiliary termials Ekip Com module It is up to the customer : - wirig of cables (W1, W2, K1 ad K2) to the auxiliary termials; - choice ad wirig of the auxiliary termials, of the auxiliary supply ad of Modbus RS485 commuicatio cable. Cable for the dialogue with the trip uit Trip uit Coector for the dialogue with Ekip Com 100

103 With SACE Tmax XT2-XT4 circuit-breakers i plug-i versio, the coectio of Ekip electroic trip uits with dialogue fuctios to the Modbus etwork is carried out through the 6-pi coector (XC5), accordig to the followig diagram: Plug-i circuit-breaker Ekip E-LSIG Ekip LSIG Ekip LSI Ekip M-LRIU Ekip Com W1 W2 K1 K pi coector Auxiliary termials Auxiliary termials Modbus RS485 cable Auxiliary power supply Vaux XC5: 6-pi plug ad socket coector o rear of pael for the auxiliary circuits of the circuit-breaker i plug-i versio. It is up to customer: - wirig of cables (W1, W2, K1 ad K2) to XC5 coector; - choice ad wirig of the auxiliary termials, of the commuicatio cable Modbus RS485 ad of the auxiliary supply. The couplig betwee the socket (fixed part) of the 6-pi coector ad the correspodig plug (movig part) accomplishes the cotiuity of wirig for the coectio of the trip uit to the Modbus etwork. - Coectio to EP010 uit SACE Tmax XT2 ad XT4 moulded-case circuit-breakers, equipped with electroic trip uits type Ekip LSI ad Ekip LSIG, are coected to EP010 uit through: - the cables W1 ad W2 comig out of Ekip Com module istalled i the circuit-breaker (with circuit-breaker i fixed versio); - the cables W1 ad W2 comig out of the fixed part (the socket), of JF3 coector, housed i the fixed part of the circuit-breaker (with circuit-breaker i withdrawable versio) - the cables comig from the termials 1 (for W1) ad 2 (for W2) of the fixed part (the socket) of the 6-pi plug ad socket coector o rear of pael (with circuitbreaker i plug-i versio). The coectio betwee the commuicatio cables/ termials, W1 ad W2, of Ekip electroic trip uits ad the termials Modbus, L (left) ad 1 (right), of EP010 uit, must be carried out as show i the followig table: Modbus EP010 termials L (left) Modbus commuicatio cables/termials of the trip uit W1/A 1 (right) W2/B It is up to the customer to coect the trip uit with EP010 ad to coect the field bus through the suitable coector FBP (FieldBusPlug). Aex C: The commuicatio modules Figure C.13: Coectio to the Modbus etwork of SACE Tmax XT2 ad XT4 circuit-breakers i plug-i versio Modbus RS485 etwork Ekip Com module Auxiliary power supply Vaux Auxiliary termials Cable W1 W2 K1 K2 Termial pi coector W1 W2 K2 K1 Auxiliary termials Trip uit Coector for the dialogue with Ekip Com Cable for the dialogue with the trip uit W1 W2 Fixed part K1 K2 Movig part It is up to the customer: - wirig of the cables W1, W2, K1 ad K2, comig out from the circuit-breaker, to the 6-pi plug-ad socket coector (XC5 coector); - wirig of the cables from the 6-pi coector to the auxiliary termials; - choice ad wirig of the auxiliary termials, of the auxiliary supply ad of Modbus RS485 commuicatio cable. 101

104 Techical Applicatio Papers Aex D: The measurig modules Aex D: The measurig modules Emax air circuit-breakers E1 to E6 with PR120/V measurig module ad X1 air circuit-breaker ad Tmax T7 moulded-case circuit-breaker with PR330/V measurig module The measurig module has the mai fuctio of measurig ad processig the phase voltages. The measured data are trasferred to the trip uit, so that a series of electrical parameters (see Aex A) useful for the moitorig of the plat by the supervisio system is made available or, if ecessary, to allow the implemetatio of a protectio logic for the plat. Besides, PR120/V ad PR330/V measurig modules ca give the trip uit a additioal supply (without replacig the self supply or the auxiliary power supply, this last always ecessary for the commuicatio via bus) respectively to the trip uits type PR122/P ad PR123/P for Emax E1-E6, PR332/P ad PR333/P for Emax X1 ad PR332/P for Tmax T7. Figure D.1: PR120/V measurig module Figure D.2: PR330/V measurig module 102

105 X4 X3 X 3 Tmax moulded-case circuit-breakers T4-T5-T6 Figure D.4: Coectio of VM210 module to PR223DS trip uit - Features of VM210 measurig module VM210 module is a voltage trasducer which ca be coected directly to the electric etwork. It provides a graduated output sigal to be used by the ABB protectio trip uits PR223EF ad PR223DS. The output sigals o termials 3, 4, 5 ad 6 of VM210, Figure D.3: VM210 measurig module Q TI/L1 TI/L2 TI/L3 TI/N Circuit-breaker PR223DS X X Auxiliary power supply Vaux 24V (B) (A) Modbus cable VM Aex D: The measurig modules associated with the system voltages, are brought as iput to the trip uit through the termials 5, 6, 7 ad 8 of the dedicated X4 coector, accordig to the wirig diagram of Figure D.4. I order to operate, VM210 shall be supplied through the termials 1 ad 2 with a auxiliary power supply of 24V dc havig the followig characteristics: Supply voltage 24 Vdc ± 20% Maximum ripple 5% Rated V 3.5 W Figure D.5: Coectio of VM210 module to X4 coector VM210 Coectio table Termial Sigal Iput Vaux + Vaux - N L1 L2 L3 Termial Output Sigal COMM Vout1 Vout2 Vout3 Coectios betwee VM210 ad circuit-breaker/trip uit: - termials 3 to 6: maximum legth of cable 15m (twisted multicore cable, shielded with shield earthed o oe side of the coectio); cross-sectioal area mm2 (22 14 AWG) - termials 1-2 ad 7 to 10: maximum legth of cable 15m; cross-sectioal area mm2 (22 14 AWG) Maximum umber of PR223DS/PR223EF which ca be coected to a sigle VM210: 5 VAUX VM X 4 Modbus Cable Auxiliary power supply Vaux 103

106 Techical Applicatio Papers Aex E: AUX-E auxiliary cotacts ad MOE-E motor operator for Tmax T4-T5-T6 Aex E: AUX-E auxiliary cotacts ad MOE-E motor operator for Tmax T4-T5-T6 For Tmax circuit-breakers type T4, T5 ad T6 some special accessories are eeded: - AUX-E auxiliary cotacts i electroic versio for supervisio oly; - motor operator with electroic iterface type MOE-E for remote cotrol too. E.1 AUX-E auxiliary cotacts i electroic versio Through the AUX-E auxiliary cotacts, the microprocessor-based releases type PR222DS/PD, PR223EF ad PR223DS detect the circuit-breaker state (ope, closed, tripped) ad make available such iformatio for the remote supervisio system, by commuicatig with it through the Modbus etwork (see Figure E.2). The AUX-E cotacts make available the iformatio about the circuit-breaker state also o the sigalig circuits of Figure E.2: Wirig diagram of AUX-E cotacts coected to PR222DS/PD Q TI/L1 TI/L2 TI/L3 TI/N Mai circuit-breaker PR222DS/PD XB AUX-E SQ SY Digital sigals (ope/closed, tripped) the plat through the cotacts SQ ad SY (see Figure E.2); i this way it is possible to obtai a redudacy of the CB state sigals. Figure E.1: Auxiliary cotact module AUX-E mouted o Tmax T5 X7 1 XA7 1 X7 5 5 XA7 X7 2 XA7 2 X7 4 XA7 4 X V - Modbus Cable (A) Termials 1 ad 2 of X3 rear coector LDSQ Auxiliary power supply Vaux (B) Sigalig circuits LDSY Remote supervisio system + Note: SQ: Cotact for the electrical sigalig of circuit-breaker ope/closed SY: Cotact for the electrical sigalig of circuit-breaker ope (tripped positio) Electrical characteristics of SQ ad SY cotacts: Rated voltage: V Rated curret: mamps Max voltage: 400 V Max cotiuous curret: 120 mamps Max curret (for 100 msecs): 300 mamps 104

107 E.2 Stored eergy motor operator MOE-E Tmax moulded-case circuit-breakers series T4, T5 ad T6 ca carry out opeig ad closig commads from remote cotrol whe they are equipped with MOE-E motor operator ad AUX-E auxiliary cotacts i electroic versio (provided by default together with MOE-E). MOE-E motor operator is costituted, besides the real motor operatig mechaism, by a electroic actuatio uit, which coverts the digital sigals comig from the remote supervisio system ito their equivalet power sigals ecessary to perform the mechaical opeig ad closig operatios of the circuit-breaker. The digital Electrical characteristics of MOE-E: Figure E.3: Operatig priciple of MOE-E ad AUX-E modules Circuit-breaker MOE-E sigals comig from the supervisio system are acquired by the trip uit ad set to the motor operator accordig to the scheme of Figure E.3. AUX-E auxiliary cotacts commuicate to the trip uit the circuit-breaker state (ope/closed/tripped) ad accordig to this iformatio, the trip uit shall carry out or ot the opeig, closig ad reset commads it receives by the supervisio system. I this way, the trip uit cosets oly to the actuatio of the commads which are compatible with the real state of the circuit-breaker (for istace it shall ot coset to a closig commad whe the circuit-breaker is i the tripped state). Tmax T4-T5 Tmax T6 Nomial voltage U AC DC AC DC - 24 [V] - 24 [V] [V] [V] [V] [V] [V] [V] [V] [V] [V] [V] 380 [V] [V] - Operatig voltage Umi = 85%U Umi = 85%U Umax = 110%U Umax = 110%U Power absorbed o irush Ps AC DC AC DC 300 [VA] 300 [W] 400 [VA] 400 [W] Power absorbed durig ormal operatio Pc AC DC AC DC 150 [VA] 150 [W] 150 [VA] 150 [W] Operatig frequecy [Hz] [Hz] Switchig time opeig (1) : 1.5 [s] opeig (1) : 3 [s] closig: < 0.1 [s] closig: < 0.1 [s] reset: 3 [s] reset: 5 [s] Mechaical life operatios operatios Miimum duratio of electrical commad 150 [ms] 150 [ms] (1) Total time, from trasmissio of impulse to circuit-breaker opeig. AUX-E Aex E: AUX-E auxiliary cotacts ad MOE-E motor operator for Tmax T4-T5-T6 AUX-E Modbus Trip-uit Trip-uit MOE-E 105

108 Techical Applicatio Papers Aex F: MOE-E motor operator for SACE Tmax XT2-XT4 Aex F: MOE-E motor operator for SACE Tmax XT2-XT4 The moulded-case circuit-breakers type SACE Tmax XT2 ad XT4 ca be cotrolled by a remote supervisio system whe equipped with MOE-E stored eergy motor Figure F.1: Wirig diagram with MOE-E Q Q TI/L1 TI/L2 TI/L3 TI/N YO1 Ekip E-LSIG Ekip LSI Ekip LSIG Ekip MLRIU Auxiliary cotacts Q7 ad SY/3 XF1 Q/7 SY/3 operators. The digital sigals (opeig ad closig commads) are set from the remote system to the Ekip Com module, which trasmits them to the electroic actuator uit of the MOE-E. This uit coverts the digital sigals ito the power sigals ecessary for operatig the motor operator (to ope ad close the circuit-breaker). The auxiliary cotacts Q/7 ad SY/3 iform the Ekip Com module about the state (ope/closed, tripped) of the circuit-breaker; thus, Ekip Com will allow the commads comig from the remote system to be carried out oly if they are compatible with the actual state of the circuitbreaker (for example, a closig commad will ot be permitted if the circuit-breaker is tripped). XF2 XY XY XY XY XY XY JE3 W4 XC5 JE3 W3 XC5 JF3 K1 XC5 JE3 K2 XC5 JF3 W2 XC5 JF3 W1 XC5 W4 W3 K1 K2 W2 W1 WI WS + 24V - +H) (B) MODBUS (Rs485) MOE-E actuator uit Opeig/closig, reset commads Ekip Com YO1: opeig soleoid of the microprocessor-based overcurret release. 106

109 Electrical characteristics of MOE-E: (for SACE Tmax XT2 ad XT4) Nomial voltage U AC DC - 24 [V] [V] [V] [V] [V] [V] [V] [V] - Operatig voltage Umi = 85%U Umax = 110%U Power absorbed o irush Ps AC DC 300 [VA] 300 [W] Power absorbed durig ormal operatio Pc AC DC 150 [VA] 150 [W] Operatig frequecy [Hz] Switchig time opeig (1) < 1.5 [s] closig < 0.1 [s] reset < 3 [s] Mechaical life operatios Miimum duratio of electrical opeig ad closig commad 150 [ms] (1) Total time, from trasmissio of impulse to circuit-breaker opeig. Aex F: MOE-E motor operator for SACE Tmax XT2-XT4 107

110 Techical Applicatio Papers Aex G: The parity bit Aex G: The parity bit The parity bit is a additioal cotrol bit i queue after each trasmitted character to avoid commuicatio errors. With the parity cotrol i eve mode, this bit is set to: - 1 if i the character to be set there is a odd umber of 1s (oes) - 0 if i the character to be set there is a eve umber of 1s (oes) so that there is always a eve umber of 1s (oes) i the character to be trasmitted. I compliace with this rule, the receiver shall cout the umber of bits set to 1 ad if the couted umber is odd, it shall uderstad that there must have bee some problem ad shall ask to the trasmitter to sed the character agai. Vice versa, whe the parity cotrol is i odd mode, the parity bit shall be set to 1 or to 0, so that there is always a odd umber of oes i the character to be trasmitted. Eve parity Character to be trasmitted Parity bit Trasmitted character Odd parity Character to be trasmitted Parity bit Trasmitted character Two commuicatig devices, to uderstad each other, must be set to the same cotrol mode of the parity bit. 108

111

112

113 Techical Applicatio Papers QT1 Low voltage selectivity with ABB circuit-breakers QT7 Three-phase asychroous motors Geeralities ad ABB proposals for the coordiatio of protective devices QT2 MV/LV trasformer substatios: theory ad examples of short-circuit calculatio QT8 Power factor correctio ad harmoic filterig i electrical plats QT3 Distributio systems ad protectio agaist idirect cotact ad earth fault QT9 QT4 ABB circuit-breakers iside LV switchboards QT10 Photovoltaic plats QT5 ABB circuit-breakers for direct curret applicatios QT11 Guidelies to the costructio of a low-voltage assembly complyig with the Stadards IEC Part 1 ad Part 2 QT6 Arc-proof low voltage switchgear ad cotrolgear assemblies QT12 Geeralities o aval systems ad istallatios o board QT13 Wid power plats

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