PROFIBUS - DP Option card for VARMECA 20

Transcription

1 en This manual is to be given to the end user Installation and maintenance

2 NOTE LEROY-SOMER reserves the right to modify the characteristics of its products at any time in order to incorporate the latest technological developments. The information contained in this document may therefore be changed without notice. LEROY-SOMER gives no contractual guarantee whatsoever concerning the information published in this document and cannot be held responsible for any errors it may contain, nor for any damage resulting from its use. CAUTION For the user s own safety, this VARMECA 20 must be connected to an approved earth ( terminal). It is imperative that the equipment is supplied via an isolating device and a circuit-breaking device (power contactor) which can be controlled by an external safety system (emergency stop, fault detector). The VARMECA 20 is fitted with safety devices which, in the event of a fault, control stopping and thus stop the motor. The motor itself can become jammed for mechanical reasons. Voltage fluctuations, and in particular power cuts, may also cause the motor to stop. The removal of the causes of the shutdown can lead to restarting, which may be dangerous for certain machines or installations. In such cases, it is essential that the user takes appropriate precautions against the motor restarting after an unscheduled stop. The VARMECA 20 is a component designed to be integrated in an installation or electrical machine. It is therefore the responsibility of the user to take all necessary precautions to ensure that the system complies with current standards. For safety reasons, LEROY-SOMER prohibits the use of VARMECA 20 for hoisting applications. LEROY-SOMER declines all responsibility in the event of the above recommendations not being observed. 2

3 SAFETY AND OPERATING INSTRUCTIONS FOR ELECTRICAL ACTUATORS (In accordance with the low voltage directive 73/23/EEC modified by 93/68/EEC) Throughout the manual, this symbol warns of consequences which may arise from inappropriate use of the VARMECA 20, since electrical risks may lead to material or physical damage as well as constituting a fire hazard. 1 - General Depending on their degree of protection, VARMECA 20 may contain moving parts, as well as hot surfaces, during operation. Unjustified removal of protection devices, incorrect use, faulty installation or inappropriate operation could represent a serious risk to personnel, animals and equipment. For further information, consult the manual. All work relating to transportation, installation, commissioning and maintenance must be performed by experienced, qualified personnel (see IEC 364, CENELEC HD 384, or DIN VDE 0100 and national specifications for installation and accident prevention). In these basic safety instructions, qualified personnel means persons competent to install, mount, commission and operate the product and possessing the relevant qualifications. 2 - Use VARMECA 20 are components designed for integration in installations or electrical machines. When integrated in a machine, commissioning must not take place until it has been verified that the machine conforms with directive 89/392/EEC (Machinery Directive). It is also necessary to comply with standard EN 60204, which stipulates in particular that electrical actuators (which include VARMECA 20) cannot be regarded as circuit-breaking devices and certainly not as isolating switches. Commissioning can take place only if the requirements of the Electromagnetic Compatibility Directive (89/336/EEC, modified by 92/31/EEC) are met. VARMECA 20 meet the requirements of the Low Voltage Directive 73/23/EEC, modified by 93/68/EEC. The harmonised standards of the DIN VDE 0160 series in connection with standard VDE 0660, part 500 and EN 60146/ VDE 0558 are also applicable. The technical characteristics and instructions concerning the connection conditions specified on the nameplate and in the documentation provided must be observed without fail. 3 - Transportation, storage All instructions concerning transportation, storage and correct handling must be observed. The climatic conditions specified in the technical manual must be observed. 4 - Installation The installation and cooling of equipment must comply with the specifications in the manual supplied with the product. VARMECA 20 must be protected against excessive stress. In particular, there must be no damage to parts and/or modification of the clearance between components during transportation and handling. Avoid touching the electronic components and contact parts. VARMECA 20 contain parts which are sensitive to electrostatic stress and may be easily damaged if handled incorrectly. Electrical components must not be exposed to mechanical damage or destruction (risks to health!). 5 - Electrical connection When work is performed on VARMECA 20 which are powered up, national accident prevention specifications must be respected. The electrical installation must comply with the relevant specifications (for example conductor cross-sections, protection via fused circuit-breaker, connection of protective conductor). More detailed information is given in the manual. Instructions for an installation which meets the requirements for electromagnetic compatibility, such as shielding, earthing, presence of filters and correct insertion of cables and conductors, are given in the documentation supplied with the VARMECA 20. These instructions must be followed in all cases, even if the VARMECA 20 carries the CE mark. Adherence to the limits given in the EMC legislation is the responsibility of the manufacturer of the installation or the machine. 6 - Operation Installations incorporating VARMECA 20 must be fitted with additional protection and monitoring devices as laid down in the current relevant safety regulations: law on technical equipment, accident prevention regulations, etc. Modification of VARMECA 20 using control software is permitted. Active parts of the device and live power connections must not be touched immediately after the VARMECA 20 is powered down, as the capacitors may still be charged. In view of this, the warnings fixed to VARMECA 20 must be observed. During operation, all protection devices must remain fixed in place. 7 - Servicing and maintenance Refer to the manufacturer s documentation. en 3

4 CONTENTS 1 -INTRODUCTION Profibus-DP for VARMECA Product Conformance Certification Overview Specification MECHANICAL INSTALLATION VARMECA ELECTRICAL INSTALLATION Profibus-DP connector Profibus-DP Data Connections Profibus-DP Cable Profibus-DP Cable Screen Connections Cable Screen Earthed At Every Node Cable Screen Not Earthed At Every Node Profibus-DP Network Termination Back-up Power Supply Connector Backup Power Supply Requirements Maximum Network Length GETTING STARTED Commissioning for VARMECA 20 PROFIBUS extension LED diagnosis on interface board CYCLIC DATA What is Cyclic Data? What is Data Consistency? Profibus-DP Data Formats Mapping Parameters on VARMECA Cyclic Words with Mode 1 Non-Cyclic Data Cyclic Words Only Cyclic Words Only Storing Parameters VARMECA Profibus-DP Interface NON-CYCLIC DATA Mode 1 - Single Word Format Reading parameters using Mode Writing parameters using Mode Profibus-DP Set-up using Non-Cyclic Data GSD FILES What are GSD Files? VARMECA 20 GSD File Data Consistency Profibus-DP Data Formats

5 CONTENTS 8 -DIAGNOSTICS Fieldbus Code Firmware Version Node Address Network Data Rate Network Status ADVANCED FEATURES Network Loss Trip Endian Format Multi-Master Networks QUICK REFERENCE Profibus-DP Parameter List Profibus-DP Data Formats Control word Status word Parameter adresses en 5

6 1 - INTRODUCTION INTRODUCTION DRIVE PARAMETERS ARE DENOTED IN THIS MANUAL BY #MM.PP, WHERE MM NOTE REFERS TO THE MENU NUMBER, AND PP REFERS TO THE PARAMETER NUMBER WITHIN THAT MENU. PLEASE REFER TO THE VARMECA 20 MANUAL FOR FULL PARAMETER DEFINITIONS Profibus-DP for VARMECA 20 The Profibus-DP for VARMECA 20 is a dual option card that fits neatly inside the Drive. The Profibus-DP interface uses a 16-bit processor and is capable of communicating at 12 Mbits/sec, currently the fastest data rate available for Profibus-DP. Parameter data is transferred to and from the VARMECA 20 using a 2-wire RS485 link into the serial communications connector on the VARMECA 20. Although power is taken from the VARMECA 20 under normal operating conditions, an optional back-up power supply can also be connected to the Profibus-DP card. This ensures that the Profibus-DP interface is kept powered up, and the interface continues to communicate with the network, even when the Drive is powered down Product Conformance Certification The VARMECA 20 Profibus-DP interface has been submitted to the Profibus Club for testing, and Product Conformance Certification is pending Overview Specification Auto slave configuration of data format and data consistency during Profibus-DP network initialisation. Auto-configuration of the serial communications port when the Profibus-DP interface is connected to the VARMECA 20. Supported data rates (bits/sec): 12M, 6M, 3M, 1.5M, 500k, 187.5k, 93.75k, 19.2k, 9.6k. Choice of two or three 16 bit input/output words. Non-cyclic data channel (optional). 6

7 MECHANICAL INSTALLATION 2 - MECHANICAL INSTALLATION VARMECA 20 Fitted in VARMECA 20 cover, the option is based on two printed circuit boards: one supporting all PROFIBUS-DP components and another one supporting micro controller for interfacing PROFIBUS- DP with VARMECA 20. Connector for external power supply if required (24VDC) Connector for network en Connection to VARMECA 20 Switch for R load Connector for keypad PROFIBUS-DP Board VARMECA 20 INTERFACE Board 7

8 ELECTRICAL INSTALLATION 3 - ELECTRICAL INSTALLATION Profibus-DP connector The VARMECA 20 Profibus-DP interface has a single 5-way screw terminal block connector for the Profibus-DP data connections Profibus-DP connector +24V backup supply Connector to VARMECA 20 The pin connections for the Profibus-DP connectors are given in the table below. Terminal Function Description 1 A1 Negative data line IN 2 B1 Positive data line IN 3 Screen Cable braided screen connection 4 A2 Negative data line OUT 5 B2 Positive data line OUT Profibus-DP Data Connections To connect the VARMECA 20 to the Profibus-DP network, make the connections as shown in the diagram below. The length of the "pigtail" screen connection should be kept as short as possible Profibus-DP Cable Profibus-DP cable has a single twisted pair plus overall screening. The data wires are usually red and green, and are generally connected as shown in the table below. Cable Data signal Terminal Green A1, A2 1, 4 Red B1, B2 2, 5 Braided Shield Screen 3 Description Negative data line, connect to pin 8 on a Profibus-DP D-type connector. Positive data line, connect to pin 3 on a Profibus-DP D-type connector. Cable screen, connects to the shell (or pin 1) a Profibus-DP D-type connector. Profibus-DP networks run at high data rates, and require cable specifically designed to carry high frequency signals. Low quality cable will attenuate the signals, and may render the signal unreadable for the other nodes on the network. For cable specifications and a complete list of approved manufacturers of equipment for use on Profibus-DP networks, please contact LEROY-SOMER. LEROY-SOMER can only guarantee correct and NOTE reliable operation of its Profibus-DP interfaces if all other equipment installed (including the network cable) has been approved Profibus-DP Cable Screen Connections Cable Screen Earthed At Every Node The screen(s) of the Profibus-DP cable(s) should be clamped to the earth. The end of the screen should be formed into a "pigtail" and connected to pin 3 on the Profibus-DP connector. With this arrangement, the Profibus-DP interface and network will work equally well when powered by the VARMECA 20 internal power supply, or from an external 24V supply, with the external supply earthed or left floating. A B V NOTE LEROY-SOMER strongly recommends that a dedicated external 24V supply should be used, as electrical noise from other external sources may cause disturbance to the Profibus system. +24V Additional impedance is fitted between the NOTE terminals and the data signal transceivers on the interface card to improve the performance of the network. This means that it is not possible to connect 2 data wires into a single terminal Cable Screen Not Earthed At Every Node The VARMECA 20 Profibus-DP interface can also be operated with the cable screens unearthed. This may be required in some situations to avoid earth loops, or to prevent fault current from electrical faults from flowing in the Profibus cable screens. The cable screens should be formed into the shortest possible pigtail and connected to pin 3 on the Profibus-DP connector. The cable screen should be earthed at one point in the system. When running the interface from the internal VARMECA 20 supply, no further precautions are required. In this case, the external +24V supply MUST be NOTE dedicated to the Profibus system, and should NOT be connected to earth. The +24V and 0V wires should run physically close to the data cable. 8

9 ELECTRICAL INSTALLATION Profibus-DP Network Termination It is very important in high-speed communications networks that the network communications cable is fitted with the specified termination resistor network at each end of the cable. This prevents signals from being reflected back down the cable and causing interference. Termination resistors are fitted to the VARMECA 20 Profibus- DP interface, and can be switched into the circuit by setting SW1 to the ON position, as indicated by the arrow in the diagram below. A B If termination is enabled on a VARMECA 20 node, power to the Profibus-DP interface card MUST be maintained continuously while the network is operating. Instances when power loss can occur are if: - An input fuse fails on the main supply to the VARMECA The Profibus-DP option is disconnected from the VARMECA 20, possibly to use CDC VMA20 keypad or PEGASE VMA20 soft for configuration changes. - The Drive can be powered down at any time during normal operation. To maintain Profibus-DP network integrity, it is strongly recommended that a +24V back-up power-supply should be connected to VARMECA 20 nodes, particularly if the node is providing the network termination. Failure to terminate a network correctly can NOTE seriously affect the operation of the network. If termination is not fitted, the noise immunity of the network is greatly reduced, while if too many nodes have their internal termination resistor networks enabled, the network will be over-loaded and may not operate at all. ON 6 7 0V +24V Back-up Power Supply Connector Usually, the Profibus-DP interface card will draw power via the communications lead from the regulated +24V rail of the VARMECA 20. If the interface is disconnected to check and update the configuration of the Drive using CDC VMA20 keypad or PEGASE VMA20 Soft, the Profibus-DP interface will power down, and this may cause network errors on the Profibus-DP network master. By connecting a +24V back-up power-supply to the interface card, the node will continue to communicate with the master controller, and no network errors will be detected. The Profibus-DP interface will indicate (using the status word) to the master controller that it is not currently communicating with the Drive. When the Profibus-DP interface is reconnected to the VARMECA 20, communications will be reestablished automatically. Terminal Function Description V 7 0V +24V Profibus-DP, fully isolated from the VARMECA 20. This allows a back-up power supply to keep the Profibus-DP circuitry operating if the Drive is switched off 0V Profibus-DP, fully isolated from the 0V of the VARMECA 20 Use of the back-up power supply is strongly NOTE recommended on the nodes that provide network termination. The resistor network ties the lines to +5V and 0V through 390 Ω resistors, so a power supply must be present at all times while the Profibus-DP network is operating Backup Power Supply Requirements The back-up power supply should be +24V ±20%, and should have sufficient current capability to supply all VARMECA 20 Profibus-DP nodes connected to it. This condition will occur if the main power supply to the VARMECA 20 is lost. The consumption of the Profibus-DP interface is dependent on the supply voltage, with typical and maximum currents listed in the table below. Back-up Supply Voltage Maximum Current Typical Current 19.2V (24V -20%) 65mA 0mA 21.6V (24V -10%) 59mA 10mA 24V nominal 55mA 35mA 26.4V (24V +10%) 48mA 48mA 30V (24V+20%) 45mA 45mA Under normal operating conditions, the VARMECA 20 and the back-up power supply share the power supply requirements of the Profibus-DP interface. The Typical Current column shows the current drawn from the back-up power supply for the typical, minimum and maximum voltages. en 9

10 ELECTRICAL INSTALLATION Maximum Network Length The maximum number of nodes that can be connected to a single Profibus-DP network segment is 32 nodes. Up to 3 line repeaters may be used to extend the network to 4 segments, allowing a maximum of 122 nodes on the network. The maximum length of cable for each segment is determined by the data rate at which the network must operate. The table below gives a summary of the maximum segment length for each data rate. Rt 1 Rt 61 Section 1: max 31 stations + 1 repeater Rt Repeater Rt Section 2: max 30 stations + 2 repeaters Repeater Data Rate (bits/sec) Maximum Segment Length (m) Maximum Total Network Length (m) 9.6K to 93.75K K K M M to 12M Section 3: max 30 stations + 2 repeaters Rt Repeater Rt 91 Section 4: max 31 stations + 1 repeater Rt Rt Terminating resistors (Rt) MUST be installed at BOTH ends of each network segment 10

11 GETTING STARTED 4 - GETTING STARTED Commissioning for VARMECA 20 PROFIBUS-DP extension 1 - Preset of parameters via CDC VMA20 keypad (software read in LOG CDC VMA should be 0138 or greater) or PEGASE VMA20 soft (issue 1.08 and above) by disabling PROFIBUS-DP board through K1 to be set to 0 P1 K1 0 Connector for keypad or PC software C01-80-A2 LED Diagnosis en 2 - Set or check VARMECA20 internal parameters : (parameter name as seen on display between ") Turning parameter 1551 to ON will set the parameters of the fieldbus as per attached 1570 BUS ENABLE = ON serial communication enable (fieldbus) 1571 SUPERVISION = ON supervision of serial communication 1572 REF. VIA BUS = ON speed reference F via serial communication 1573 REF. N = xxxhz speed reference F 3 - To test operation of serial communication, switch VARMECA20 ON and OFF : 1580 VMA CONTROL = 02 VARMECA 20 is ON 1580 VMA CONTROL = 00 VARMECA 20 is OFF 4 - Set of PROFIBUS parameter : "1503 ADRESS VMA VARMECA20 address "1511 P2 IN CYCL. Read parameter "1512 P3 IN CYCL. "1521 P2 OUT CYCL Write parameter "1522 P3 OUT CYCL 5 - Disconnect keypad and turn K1 back to 1 for fieldbus operation 11

12 GETTING STARTED LED diagnosis on interface board LED Green LED red OPERATION OFF OFF PROFIBUS board is not connected to interface board. Keypad is or is not connected. ON 1 to 2 pulses Signalling when connecting PROFIBUS board to interface board. ON OFF PROFIBUS board connected to interface board without network message. Flashing (fast) OFF Network message sent. Fieldbus communication OK ON OFF Network connection removed. LED Green OFF OFF with few flashes Flashing (+ or fast) or OFF with few flashes Flashing (low with longer OFF ON with few losses ON Flashing (fast) LED red ON ON with few losses Flashing) or OFF with few flashes OFF with few flashes OFF with few flashes OFF Flashing (fast) OPERATION Connection failure between interface board and VARMECA20, when keypad is connected check connection Connection failure between interface board and VARMECA20, when PROFIBUS board is connected and network ON check connection Both keypad and PROFIBUS board are connected in the same time, with or without network communication. remove keypad connection and set connection for PROFIBUS board Connection failure between PROFIBUS board and interface board during network communication check connection Connection failure between PROFIBUS board and interface board following one stop of network communication. check connection (flashing of LED Red, LED Green OFF) check connection of PROFIBUS board Network communication OK but VARMECA20 address wrong change 1503_ADRESS_VMA Network communication OK but with wrong values check setting values for parameter 1521_P2_OUT_CYCL and 1522_P3_OUT_CYCL 12

13 CYCLIC DATA 5 - CYCLIC DATA OUT data and IN data describe the direction NOTE of data transfer as seen by the Profibus-DP network master controller What is Cyclic Data? Cyclic data is a method data transfer that must be set-up during network configuration, but is transmitted automatically once configuration is complete. The high-speed data transfer is achieved by transmitting only a 16-bit data value for each cyclic channel over the Profibus-DP network, and relying on local mapping information within the Drive to ensure the correct data is sent to the correct locations. This method relies on the master controller program writing and reading data values to and from the registers allocated to the node during network configuration, and the source and destination of IN and OUT data being set-up correctly in the Drive itself. The flexibility of the VARMECA 20 Profibus-DP interface means that each cyclic data OUT channel can be directed to any read-write Drive parameter. Similarly, each cyclic data IN channel can use any Drive parameter as a source of data. The cyclic data mapping cannot be changed NOTE dynamically, as the VARMECA 20 must be powered down to connect either CDC VMA20 keypad or PEGASE VMA20 soft. Changes will take effect when the Profibus-DP interface is re-connected, and the Drive powered up What is Data Consistency? If a data format is selected that requires full data consistency, this guarantees that the data on the Profibus is not updated with the new data values until ALL data words have been written into the Profibus buffer memory. Consistent data may be important when using the 4-word non-cyclic data format. Without consistency, it is possible for 2 of the 4 words to go on one network cycle, with the data value updated on the next cycle. If the command was a write command, this could result in the previous data value being written to the new parameter, and could have disastrous consequences. Using data consistency can often put restrictions on data manipulation within the master controller, and may require the use of special functions within the master controller, and these can take longer to execute. (Consult the supplier of the master controller for further information.) Profibus-DP Data Formats VARMECA 20 #15.05 (Read only) VARMECA 20 Profibus-DP interface will auto-detect the data format required during network initialisation, and indicate the data format being used in # All data formats can be set to have full data consistency or no data consistency. Format (#15.05) Non-cyclic data mode Cyclic words Mapping Parameters on VARMECA Cyclic Words with Mode 1 Non-Cyclic Data This data format provides three 16-bit cyclic data words, plus Mode 1 non-cyclic. To select this data format, choose "Cyc=3W, NCyc=Mode 1, full cons" for full data consistency, or "Cyc=3W, NCyc=Mode 1" for no data consistency Cyclic Words Only Consistency Comment Full None Full None Full These modes are the formats used by None the Unidrive and Mentor II Profibus- DP interfaces Data Word Mapping Parameter Default Mapping Status IN Word 0 - Non-cyclic data word IN Word 1 - Status word (fixed as #90.12) IN Word 2 #15.11 #0.17, post-ramp speed reference IN Word 3 #15.12 #0.16, motor load as % of rated motor load OUT Word 0 - Non-cyclic data word OUT Word 1 - Control word (fixed as #90.12) OUT Word 2 #15.21 #0.43, local reference OUT Word 3 #15.22 #0.10, reference 1 This data format provides two 16-bit cyclic data words, with no non-cyclic data channel. To select this data format, choose " Cyc=2W, NCyc=None, full cons" for full data consistency, or " Cyc=2W, NCyc=None" for no data consistency. Data Word Mapping Parameter Default Mapping Status IN Word 1 - Status word (fixed as #90.12) IN Word 2 #15.11 #0.17, post-ramp speed reference OUT Word 1 - Control word (fixed as #90.12) OUT Word 2 #15.21 #0.43, local reference en 13

14 CYCLIC DATA Cyclic Words Only This data format provides three 16-bit cyclic data words, with no non-cyclic data channel. To select this data format, choose " Cyc=3W, NCyc=None, full cons" for full data consistency, or " Cyc=3W, NCyc=None" for no data consistency. Data Word Mapping Parameter Storing Parameters Default Mapping Status IN Word 1 - Status word (fixed as #90.12) IN Word 2 #15.11 #0.17, post-ramp speed reference IN Word 3 #15.12 #0.16, motor load as % of rated motor load OUT Word 1 - Control word (fixed as #90.12) OUT Word 2 #15.21 #0.43, local reference OUT Word 3 #15.22 #0.10, reference 1 Menu 15 parameters are stored in the VARMECA 20 and the Profibus-DP interface card. If the VARMECA 20 has previously stored Profibus-DP settings, these will always be used by the Profibus-DP interface. All #15.PP parameters will be read and stored automatically inside the Profibus-DP interface VARMECA 20 Menu 0 parameters are automatically stored when they are edited using the keypad on the VARMECA 20. All other parameters can be stored using CDC VMA20 keypad or PEGASE VMA20 Soft Profibus-DP Interface When the Profibus-DP interface establishes the "FbuS" communications link, it checks the value in # If this is set to 1, it uploads all menu 15 parameters from the Drive and stores them in the FLASH memory. 14

15 NON-CYCLIC DATA 6 - NON-CYCLIC DATA The non-cyclic data channel provides a method for the master controller to read from or write to any parameter within the Drive. This channel can be used for single infrequent data transfers, or uploading and downloading parameter sets to or from a particular node. Non-cyclic data access to Drive parameters is controlled entirely by the master controller program, and is not configured in any way when the Profibus-DP network map is defined. The VARMECA 20 Profibus-DP interface currently provides one format for non-cyclic data, plus the option to disable noncyclic data. Non-Cyclic Mode Data Format Description Disabled 0.xx Non-cyclic data disabled. Mode Single Word Format, as used in Unidrive and Mentor II. Word 0 is reserved and used for non-cyclic data transfers. Th The actual configuration for the non-cyclic data format is selected when the network master controller is configured. The GSD file will offer all supported data formats, and the user must select the option that offers the correct number of non-cyclic data words and the desired non-cyclic data format. #15.05 will not be updated in the Drive until the Profibus-DP interface has been plugged in and the Profibus master controller has initialised the node Mode 1 - Single Word Format The Single Word Format (Mode 1) of non-cyclic data uses one word for non-cyclic data. The non-cyclic sub-protocol requires a specific sequence of 4 words or "telegrams" to implement the parameter access. Each non-cyclic word or telegram is split into 2 bytes to implement the sub-protocol, with the high byte containing the control codes for each telegram, and the low byte containing the data for each telegram. b15 b14 b13 b12 b11 b10 b9 b8 R/W Error X X Stamp number Bit Function Values Description 0 to 7 Data 0 to to 11 Start Send first telegram to OUT word 0 Read IN word 0 Tx_Stamp_No = Rx_Stamp_No? Yes Tx_Stamp_No No =2? Yes Check status of ERR bit 1 Stamp number X = don t care. Generally, these bits should be NOTE set to 0. If a message is aborted part way through, the non-cyclic OUT word should be reset to 0. This will reset the non-cyclic state machine, and allow the message sequence to be restarted Reading parameters using Mode 1 To read parameters using the non-cyclic channel, the following telegrams must be transmitted to construct the final message. Telegram 1 Define menu number. Telegram 2 Define parameter number. Telegram 3 Request high data byte. Telegram 4 Request low data byte. 0 No 0 to 4 READ Send next telegram to OUT word 0 Depending on the stamp number of the telegram, this byte contains the menu or parameter number, or data high or low byte. Indicates the stamp number of the word. This shows which part of the message is currently in progress. Setting the stamp number to 0 resets the internal non-cyclic state machine 12, 13 Not Used These should be set to ERR 15 R/W 0 = Data OK 1 = Error 0 = Write 1 = Read Indicates the success or failure of the message. Failure could occur if the parameter does not exist, or is a read-only or write-only parameter. Defines whether the data word is part of a READ or WRITE cycle is in progress. Send telegram 3 to OUT word 0 Read IN word 0 Tx_Stamp_No = Rx_Stamp_No? Yes Store data byte Tx_Stamp_No No =4? Yes Calculate data value No Send next telegram to OUT word 0 en b7 b6 b5 b4 b3 b2 b1 b0 Data byte ERROR. Check parameter exists, data is in correct range, and parameter is Read/Write END OF SEQUENCE The following example telegrams show how to read the data value from #3.02 in the VARMECA

16 NON-CYCLIC DATA TELEGRAM 1 TELEGRAM 3 The first telegram from the DP master indicates a READ cycle, and the stamp number is 1. The data byte would contain the menu number for the parameter that is to be read. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 1XXX Data word = 0x8100 Stamp number = 1 Menu = 0 When the first telegram has been received and processed in the DP node, it is mirrored in the non-cyclic IN word back to the PLC. This is the signal to the master controller program that the first telegram of the message has been received and understood, and the second telegram can be transmitted. TELEGRAM 2 The second telegram from the DP master also indicates a READ cycle, but the stamp number is now 2. The data byte would contain the parameter number for the parameter that is to read. The third telegram from the DP master acts as the indication to the DP slave to send the data high byte from the requested parameter. The data byte is not used in this telegram, and should be set to 0. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 1XXX 0011 XXXX XXXX Data word = 0x8300 Stamp number = 3 Data high byte = XX When the third telegram has been received and processed in the DP node, the node will mirror the stamp number in the non-cyclic IN word, and load the high byte of the parameter value into the data byte. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 10XX Data word = 0x8300 Stamp number = 3 Data high byte = 0x00 Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 1XXX Data word = 0x820C Stamp number = 2 Parameter = 17 When the second telegram has been received and processed in the DP node, it is mirrored in the non-cyclic IN word. This is the signal to the master controller program that the second telegram of the message has been received and understood, and the third telegram can be transmitted. If telegrams 1 and 2 were not received correctly, or an invalid parameter was specified, e.g. parameter is write only, or does not exist, the Profibus-DP interface will set the ERROR bit to 1 (b14 = 1). The data bits will have no significance. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 11XX 0010 XXXX XXXX Data word = 0xC200 Stamp number = 2 If an error is reported, it is recommended that the non-cyclic data word is set to 0 to ensure that the non-cyclic state machine is completely reset, and ready for the next non-cyclic READ or WRITE sequence. TELEGRAM 4 The fourth telegram from the DP master acts as the indication to the DP slave to send the data high byte from the requested parameter. The data byte is not used in this telegram, and should be set to 0. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 1XXX 0100 XXXX XXXX Data word = 0x8400 Stamp number = 4 When the fourth telegram has been received and processed in the DP node, the node will mirror the stamp number in the non-cyclic IN word, and load the low byte of the parameter value into the data byte. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 1XXX Data word = 0x8432 Stamp number = 4 Data low byte = 0xDC Speed feedback = (high data byte * 256) + low data byte = (0x0 * 0x100) + 0x32 = 0x32 = 50.0 Hz 16

17 NON-CYCLIC DATA Writing parameters using Mode 1 To write to parameters using the non-cyclic channel, the following telegrams must be sent on each network cycle to construct the final message. Telegram 1 Define menu number. Telegram 2 Define parameter number. Telegram 3 Set data high byte. Telegram 4 Set data low byte. Start Send first telegram to OUT word 0 WRITE When the first telegram has been received and processed in the DP node, it is mirrored in the non-cyclic IN word. This is the signal to the master controller program that the second telegram of the message has been received and understood, and the third telegram can be transmitted. TELEGRAM 3 The third telegram from the DP master has the stamp number set to 3. The data bits contain the data high byte for the parameter being written to. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 0XXX en Read IN word 0 Tx_Stamp_No = Rx_Stamp_No? Yes Tx_Stamp_No No =4? Yes No Send next telegram to OUT word 0 Check status of ERR bit Parameter written OK END OF SEQUENCE 1 ERROR Check paramter exists, and that it is aread/write parameter Data word = 0x0300 Stamp number = 3 High data byte = 0x00 When the first telegram has been received and processed in the DP node, it is mirrored in the non-cyclic IN word. This is the signal to the master controller program that the third telegram of the message has been received and understood, and the fourth telegram can be transmitted. The following example telegrams show how to write a value of 1500 to #0.17 in the VARMECA 20. TELEGRAM 1 The first telegram from the DP master indicates a WRITE cycle by setting the R/W bit to 0. The stamp number is set to 1. The data byte contains the menu number for the parameter that is to be written to. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 0XXX Data word = 0x0112 Stamp number = 1 Menu = 0 When the first telegram has been received and processed in the DP node, it is mirrored in the non-cyclic IN word. This is the signal to the master controller program that the first telegram of the message has been received and understood, and the second telegram can be transmitted. TELEGRAM 2 The second telegram from the DP master also indicates a Write cycle, but the stamp number is now set to 2. The data byte would contain the parameter number for the parameter that is to be written to. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 0XXX Data word = 0x020C Stamp number = 2 Parameter = 12 TELEGRAM 4 The fourth telegram from the DP master has the stamp number set to 4. The data bits contain the data low byte for the parameter that is being written to. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 0XXX Data word = 0x0450 Stamp number = 4 Low data byte = 0x50 When the fourth telegram has been received and processed in the DP node, it will write the data (#0.17 = 2850) as transmitted. If the operation is successful, the ERR bit is reset to 0 and the telegram is reflected in the non-cyclic IN word. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 00XX Data word = 0x0400 Stamp number = 4 Low data byte = 0x22 If there was a problem with writing the data to the defined parameter, e.g. parameter is read only, does not exist, or data is out of range, the ERR bit is set to 1. Bit b15-b12 b11-b8 b7-b4 b3-b0 Value 01XX 0100 XXXX XXXX Data word = 0x4400 Stamp number = 4 17

18 NON-CYCLIC DATA Profibus-DP Set-up using Non- Cyclic Data The VARMECA 20 Profibus-DP interface can also be configured via the non-cyclic data channel. Menu 15 in the Drive contains the parameter values currently being used, and these can be modified as required using a non-cyclic data WRITE command. The parameters listed below are the parameters that can be written to configure the Profibus-DP interface. However, care must be taken when writing to certain parameters. For example, if the master changes the node address parameter #15.03 controller, and the interface is forced to re-configure, the node will appear on the Profibus-DP network at the new address. Param Default Description # Node Address. # Trip Delay Time (ms) Specifies the time-out period for the Profibus-DP network. If no network messages are received in this time period, the network loss trip is invoked. (See section 9.1) # = big endian transfer (high byte first) 1 = little endian transfer (low byte first) Some Profibus master devices transmit the low byte first, so this parameter allows the interface to swap the bytes automatically if required. (See section 9.2) #15.11 #0.17 IN Channel 2 Mapping #15.12 #0.16 IN Channel 3 Mapping #15.21 #0.43 OUT Channel 2 Mapping #15.22 #0.10 OUT Channel 3 Mapping The parameters listed in the table below return information about the Profibus-DP interface. Writing to these parameters will not affect the operation of the node. Param Description #15.01 Option ID Code Profibus-DP = 1 #15.02 Software Version Vxx.yy #15.04 Data Rate (defined by the fieldbus master) Data Format Indicates the number of non-cyclic and cyclic data #15.05 words as X.Y, where X = non-cyclic words, Y = cyclic data words #15.50 Software Version - zz 18

19 GSD FILES 7 - GSD FILES What are GSD Files? GSD files are text files that are used with the Profibus-DP network configuration software. They contain information about the device capabilities, such as supported data rates, delay timings, supported data formats, etc. GSD files are not actually downloaded to the master controller or scanner. The information they contain is used when the network configuration file is generated, but they are necessary and are only used during network configuration. They must usually be installed into the network configuration software, or copied to a specific directory. Refer to the software documentation for instructions about installing GSD files. LEROY SOMER cannot offer specific technical support on any of the software packages available for configuring Profibus-DP networks or on the use and configuration of any specific PLC with Profibus-DP. A device cannot be included in the NOTE configuration for a Profibus-DP network without an associated GSD file VARMECA 20 GSD File A GSD file is available for the VARMECA 20 Profibus-DP interface, and can be obtained from your local LEROY SOMER Drive Centre. This file contains a full description of the performance capabilities of the VARMECA 20 Profibus- DP interface. Most configuration tools for Profibus-DP will group slaves together, depending on what type of device they are Data Consistency Data consistency provides a method of ensuring that all data is updated at the same time, thus preventing any form of data skew. Using data consistency can often put restrictions on data manipulation within the master controller, and require data bytes or words to be written in a certain order. Using data consistency can increase the master controller cycle time, so it should only used if really necessary. (See section 5.2) Profibus-DP Data Formats All data formats can be set to have full data consistency or no data consistency. The first cyclic data word is always the control word. Format (#15.05) Non-cyclic words Cyclic words Consistency Comment Full PPO None Full None Full None These modes are the formats used by the Unidrive and Mentor II Profibus- DP interfaces When the master initialises the network, it will transmit format configuration byte to each slave. If the configuration byte matches one of the three modes above, the slave will automatically configure itself for this type of data. en Drive VARMECA 20 Filename LSVA 04FA.GSD or CSTSE 04FA.GSD 19

20 8 - DIAGNOSTICS DIAGNOSTICS The information from the parameters described below should always be noted before contacting LEROY-SOMER for technical support Fieldbus Code VARMECA 20 #15.01 The fieldbus code identifies the fieldbus option module last fitted to the VARMECA 20. Code Fieldbus Type 1 Profibus-DP Firmware Version VARMECA 20 #15.02 The version of firmware present in the Profibus-DP interface can be read from #15.02 in the VARMECA 20. Major Code (#15.02) Minor Code (#15.50) Node Address VARMECA 20 #15.03 Every Profibus-DP node must be assigned a unique node address. If two or more nodes have the same address, this will cause a conflict when the master attempts to initialise the network. Ideally, the node address should be configured on each node BEFORE any attempt is made to connect it to the network. #15.03 can be modified using the keypad on the VARMECA 20 itself Network Data Rate Firmware Version V VARMECA 20 #15.04 (Read only) The VARMECA 20 Profibus-DP interface automatically detects the network data rate, and display the data rate in # The data rates supported by the VARMECA 20 Profibus-DP interface are listed in the table below. #0.46 bits/sec #0.46 bits/sec M K 1 6.0M K 2 3.0M 7 Reserved 3 1.5M K 4 500K 9 9.6K Network Status (see 4.2) 20

21 ADVANCED FEATURES 9 - ADVANCED FEATURES Network Loss Trip VARMECA 20 # = trip disabled 1 to 2000 = trip delay time The Profibus-DP interface counts the number of valid network cycles received in a time period specified by # The trip is triggered if no messages are received in a given sample period, and messages were received in the previous sample period. The default setting for #15.07 is 200ms. Messages per sec Sample points #15.07 If #15.08 is set to 1, the VARMECA 20 Profibus-DP interface will treat all data received as little endian, and assume that the first byte received is the low byte, followed by the high byte. This also applies to the non-cyclic data channel Multi-Master Networks Profibus-DP networks can operate with more than one master device connected to the same lines. VARMECA 20, Unidrive and Mentor II Profibus-DP interfaces can all operate on multi-master networks, but each device can only be assigned to one of the master devices. Consult the supplier of your master controller for more details about implementing multi-master Profibus-DP networks. en Time (ms) Profibus stops communicating here Drive trips on "t60" As can be seen from the diagram, the actual time from network loss to Drive trip will range from #15.07 ms to 2 * #15.07 ms. By decreasing #15.07, the maximum trip time will be reduced, but if the trip time is set too low, spurious network loss trips will be seen. The actual network loss trip time depends entirely on the number of messages per second being received under normal operation. As a rough guide, the network loss trip time (#15.07) should be set such that a minimum of 10 messages will be received in any given sample period under normal operating conditions Endian Format VARMECA 20 # = big endian 1 = little endian The VARMECA 20 Profibus-DP interface uses word (16-bit) format, but the master controller must split each word into 2 bytes (high byte and low byte) for transmission over the Profibus. The "endian format" defines whether the high byte or low byte is transmitted first. Provided that the master controller and slave device are using the same endian format, the data word value will be reconstructed correctly. The VARMECA 20 uses big endian format by default, where the high byte is transmitted first, followed by the low byte. However, some master controllers use little endian format. This results in "byte swapping" when the data value is reconstructed at the other end of the network. For example, a value of 0x0102 (258 decimal) may be reconstructed as 0x0201 or 513 decimal. 21

22 QUICK REFERENCE 10 - QUICK REFERENCE Profibus-DP Parameter List (Access via CDC VMA20 keypad or PEGASE VMA20 soft) Display Designation Setting range Factory setting 1500 LOG. OPTION Software issue of interface board Option Identity code : 1501 TYPE OPTION 1 = PROFIBUS DP, 2 = INTERBUS S, 1, 2, 5 or = DEVICE NET, 6 = CAN OPEN 1502 LOG1 CT Software issue of fieldbus board 1503 ADRESS VMA VARMECA 20 node address 0 / Baud rate : 0 = 12Mbits/s, 1 = 6Mbits/s, 2 = 3Mbits/s, 1504 BAUD RATE 3 = 1.5Mbits/s, 4 = 500kbits/s, 5 = 187.5kbits/s, 0 to 9 6 = 93.5kbits/s, 7 = 45.45kbits/s, 8 = 19.2kbits/s, 9 = 9.6kbits/s Data format : HW byte = 1 = one acyclic word 1 acycl. 3 cycl DATA CONFIG 1 acycl. 3 cycl. LW byte = 2 = two cyclic words 0 acycl. 3 cycl. LW byte = 3 =three cyclic words 0 acycl. 2 cycl TIMEOUT Time out delay (loss of connexion) 0 to 250 ms 20 Byte configuration LW / HW or HW / LW : 1508 BYTE CONFIG ON = HW / LW Big Endian ON / OFF OFF OFF = LW / HW Little Endian 1511 P2 IN CYCL Cyclic parameter #2 read Any of the parameter P3 IN CYCL Cyclic parameter #3 read Any of the parameter P2 OUT CYCL Cyclic parameter #2 write Any of the parameter P3 OUT CYCL Cyclic parameter #3 write Any of the parameter LOG2 CT Software issue of fieldbus board 1551 BUS FACTORY Fieldbus parameter factory settings ON / OFF OFF SETTINGS Assigment of control I/O : 1570 BUS ENABLE OFF = local ON / OFF ON ON = fieldbus 1571 SUPERVISION Monitoring of communication : ON / OFF ON / OFF OFF Assigment of reference input : 1572 REF VIA BUS OFF = local ON / OFF ON ON = fieldbus 1573 LOCAL REF. Speed reference via fieldbus 50 Hz Control word of VARMECA 20 (access via P1 IN CYCL, 1580 CTRL WORD cannot be modified) 1581 STATUS WORD Status word of VARMECA 20 22

23 QUICK REFERENCE Profibus-DP Data Formats Format (#15.05) Non-cyclic words Cyclic words Control word Consistency Comment Full PPO None Full None Full None These modes are the formats used by the Unidrive and Mentor II Profibus- DP interfaces bit Description VARMECA 20 (0-80) 0 Not used 1 ON / OFF 2 Not used 3 Rotation direction can only be changed when OFF 4 Not used 5 Not used 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Not used Status word bit Description VARMECA 20 (0-81) 0 Not used 1 Status Drive 2 Signal for 0 speed 3 Not used 4 Not used 5 Signal for reference reached 6 Not used 7 Signal for Thermal limitation 8 Signal for current limitation 9 Signal for maximal pressure 10 Signal for pump priming 11 Not used 12 Reserved 13 Not used 14 Not used 15 Not used en 23

24 QUICK REFERENCE Parameter adresses Parameter address Menu.Address Type of parameter VMA A20 VMA B Read / Write Hz P01 F- min Minimum operating frequency 6 to Fmax 12Hz Read / Write Hz P02 REF 0V/ 4mA Calibration of the minimum reference 0 V or 4 ma 0 to Fmax 12Hz Read / Write Hz P03 F- max Maximum operating frequency 32 to 220Hz 32 to 100Hz 50 or 80Hz Read / Write Hz P04 REF 10V/ 20mA Calibration of the maximum reference 10 V or 20 ma 32 to 220Hz 32 to 100Hz 50 or 80Hz Read / Write s P05 ACCEL. RAMP Read / Write s P06 DECEL. RAMP Read / Write switch P07 STOP MODE Acceleration ramp Time to pass from 0 to 50 Hz Increment Deceleration ramp Time to pass from 50 to 0 Hz Incr ment Stop mode : freewheel = freewheel stop ramp = stop according to ramp Read / Write V P08 UN - MOT Voltage applied to the motor from the base frequency 0 to 480V 230 or 400V Read / Write Hz P09 FN - MOT Motor base frequency 50 to Fmax 50Hz Selection of voltage / frequency ratio constant = fixed U/F, the P08 voltage will be applied at the Read / Write switch P10 CONTROL U/F P09 frequency point constant, dynamic Adapted to dynamic = dynamic U/F, the voltage adapts automatically rating the motor voltage to the motor load (according to K3 position) Read / Write % P11 BOOST Read / Write % P12 OVERBOOST Read / Write switch P13 F PWM Switching frequency Read / Write switch P14 CONFIG Unit Display on Keypad Designation Value of voltage applied in low frequencies (percentage of voltage) Value of voltage during starting phase (percentage of voltage) Terminal block configuration : STANDARD CONFIG.1 = 2 preset speeds + analog reference CONFIG.2 = 3 preset speeds and analog reference 1 operating direction CONFIG.3 = correction of an external reference with the local button CONFIG.4 = 2 preset speeds proportional to the reference 1 operating direction CONFIG.5 = Pressure or flow control with PI regulation CONFIG.6 = Jog control CONFIG.7 = Faster and slower control (require P60 turned ON) 0 to 100s 1s 0 to 100s 1s STANDARD CONFIG.1 CONFIG.2 CONFIG.3 CONFIG.4 CONFIG.5 0 to 40s 0,1s 0 to 40s 0,1s STANDARD CONFIG.1 Not available CONFIG.3 CONFIG.4 Not available 3s 3s ramp Adapted to rating Adapted to rating Adapted to rating STANDARD CONFIG.6 Not available CONFIG.6 CONFIG Read / Write Hz P15 VP1-1 Preset speed 1 in CONFIG. 1 and 4 6 to Fmax 6 to Fmax 50Hz Read / Write Hz P16 VP2-1 VP1-2 Preset speed 2 in CONFIG. 1 and 4 or preset speed 1 in CONFIG. 2 6 to Fmax 6 to Fmax 60Hz Read / Write Hz P17 VP2-2 VP3-1 Preset speed 2 in CONFIG. 2 or preset speed 3 in CONFIG. 1 with extension ESFR VMA 6 to Fmax 6 to Fmax 40Hz Read / Write Hz P18 VP3-2 Preset speed 3 in CONFIG. 2 6 to Fmax Not available 70Hz Read / Write switch P19 ROTATION Choice of direction of rotation in CONFIG. 2 FORWARD / REVERSE FORWARD Terminal 2 assignment : OUTPUT N = Analog output of frequency image : 0V = 0 Hz OUTPUT N OUTPUT N / 10v = Fmax Read / Write switch P20 SELECT - N 2 INPUT PI = Analog input of PI regulation INPUT PI Not available 0-10V or 4-20ma (according to minidip K2) OUTPUT N OUTPUT I = Analog output of motor current image : 0V = 0A OUTPUT I Not available / 10V = 10A OUTPUT P = Analog output of motor power image : 0V = OUTPUT P Not available 0kW / 10V = 5kW Read / Write P21 PI - K PROPO. Proportional gain of the PI loop 1 to 100 Not available Read / Write P22 PI - K INTEG. Integral gain of the PI loop 1 to 100 Not available Read only Hz P23 F - MOT Value of motor operating frequency Read only A P24 I - MOT Value of motor operating current Setting range ramp, freewheel 0 to 40% 0 to 50% 4,6,8,11KHz Value in Hz Value in A Factory setting Read only switch P25 FAULT Last fault in memory OK = no fault I2T MOTOR = motor overheating LEVEL In = exceeded current threshold before overload trip OVER CURRENT = overcurrent LOCKED ROTOR = locked rotor UNDER VOLT.= DC bus undervoltage EEPROM = eeprom fault RS 232 = serial communication fault ENABLE = drive enabled and locked LIMIT.I = current limitation reached OVERLOAD = motor overload UNDER P1 = under pressure operation FAULT POSITION K2 = short circuit on supply of control I/O OK I2T MOTOR Not available OVER CURRENT LOCKED ROTOR UNDER VOLT. EEPROM RS 232 ENABLE LIMIT.I OVERLOAD UNDER P1 FAULT POSITION K2 OK I2T MOTOR LEVEL In OVER CURRENT LOCKED ROTOR UNDER VOLT. EEPROM RS 232 ENABLE LIMIT.I OVERLOAD Not available FAULT POSITION K Read / Write switch P26 STOP - F-min Read / Write switch P27 RELAY Read only V P30 V Bus DC Enabling of STOP signal. When the reference is less than Fmin, it forces the motor to stop. Relay assignment : FAULT = relay assigned to fault F-MOT=REFERENCE = speed reference achieved (end of ramp) BRAKE = brake control Value of DC bus voltage Umains = VDCbus / 1,4 OFF / ON FAULT F-MOT = REFERENCE BRAKE value in Volts DC OFF FAULT 24