TECHNICAL SPECIFICATIONS...

Size: px

Start display at page:

Download "TECHNICAL SPECIFICATIONS..."

Justin Booth
5 years ago
Views:

3 1 Contents 2 INTRODUCTION Installation Power Supply Installation warnings TECHNICAL SPECIFICATIONS Scope of delivery Mechanical specifictions Plastic Case Electrical specifications Electrical connection MECHANICAL DIMENSIONS CONNECTORS NETWORK SEPTUP GATEWAY SETUP Adressing fans Installing fans to be recognized by the EC-FAN GATEWAY 7 Page 1 of 14

4 2 INTRODUCTION The EC-FAN GATEWAY is a user configurable BACnet protocol communications gateway that provides a bridging platform for information flow between BACnet and MODBUS protocols. This smart device is a simple to use controller that can be applied to managing HVAC applications, but above all a special accessory for the connectivity of all MODBUS protocol ebm-papst fans to the most commonly used building management system, BACnet. The program and its parameters are saved to FLASH memory and EEPROM. This results in the EC-FAN GATEWAY retaining programmable data irrespective of any power failures and thus eliminates the requirement of a back up battery. The program can be loaded via PC. 2.1 Installation Mechanical Fastening The EC-FAN GATEWAY is installed on a DIN rail. To fasten the unit to the DIN rail, press it lightly against the rail. The rear tabs will click into place, locking the unit to the rail. Removing the rail is just as simple, using a screwdriver through the release slot to lever and lift the tabs. The tabs are kept in the locked positions by the springs. Note that DIN rail is not provided in the scope of delivery. 2.2 Power Supply AC The power supply is connected between G and G0 (Cf. Figure 1a). For AC installation, it is recommended to use a 30 VA class 2 safety transformer that provides an output voltage of 24 Vac. This is to supply a single EC-FAN GATEWAY only. When supplying multiple EC-FAN GATEWAY controllers with the same transformer, the transformer s rated power must be n x 30VA, where n represents the number of EC-FAN GATEWAY controllers being supplied by this transformer DC The power supply is connected between G and G0 (Cf. Figure 1b). The voltage supply required is 48 VDC (36V min to 72V max) Fuse The power supply to the EC-FAN GATEWAY and terminal (or series of EC-FAN GATEWAYs and terminals) should be separate from the power supply to the other electrical devices (contactors and other electromechanical components) inside the electrical panel. A 250 V 800 mat fuse must be installed in the power supply line. The power supply is functionally insulated from the rest of the I/O circuit, including the serial connections. 2.3 Installation warnings Operating Environment Avoid assembling the EC-FAN GATEWAY controller in environments with the following characteristics Relative humidity greater than 90% Strong vibrations or knocks Exposure to continuous water sprays Exposure to corrosive or pollutant gases (e.g. sulphur or ammonia fumes, saline mist, smoke). This is to avoid corrosion and oxidation of the controller unit Strong magnetic and/or radio interference. Avoid installation of the EC-FAN GATEWAY close to transmitting antennas Large and rapid ambient temperature fluctuations Environments where explosive mixes of flammable gases are present Exposure to dust Connecting the EC-FAN GATEWAY Using an inappropriate power supply from the one specified could seriously damage the EC-FAN G ATEWAY. Use cable ends that are suitable for the terminals. Loosen each screw and insert the cable ends, then tighten the screws once completed, lightly tug at the cables to ensure that they are appropriately fitted. Avoid touching or coming into close contact with the electronic components fittet on the boards. This is recommended to avoid electrostatic discharges from the operator to the components. Electrostatic discharges can have an extremely detrimental effect on the functionality of the EC-FAN GATEWAY. Disconnect the controller from the power supply before performing any maintenance or assembly connections/operations. If and when the EC-FAN GATEWAY is not used in the manner specified by the manufacturer, the rated protection of the device may be compromised. Page 2 of 14

5 3 TECHNICAL SPECIFICATIONS 3.1 Scope of delivery Supernode Removable screw connector kit for Supernode BACnet MS/TP RS485 ardsafety shoes and cut resistant gloves. 3.2 Mechanical specifictions Assembly DIN rail 3.3 Plastic Case Fitted on DIN rail as per DIN and IEC EN Material: technopolymer Flame retardance: V0 (UL94) and 960 C (IEC 695) Ball pressure test 125 C Resistance to creeping current = 250 V 3.4 Electrical specifications Isolated power supply DC power supply: 48 VDC (36 V minimum to 72 V maximum) AC power supply: 24 VAC +10% to -15 %, 50/60 Hz Maximum power input: P= 6 W, S= 8 VA CPU H8SX/ bit, 50 MHz FLASH program memory 2+2 Mbytes SRAM data memory 512 kbytes, 16-bit Parameter data memory 13 kbytes + additional 32 kb EEPROM NAND FLASH memory 32 Mbytes Duration of working cycle 0.2 s typical (applications of average complexity) Clock Available as standard and integrated on main board with CR VDC lithium battery Terminal block male/female plug-in connectors, max voltage 250 VAC; Cable size: min 0.5 mm ² max 2.5 mm ² 3.5 Electrical connection Figure 1a Figure 1b Page 3 of 14

6 4 MECHANICAL DIMENSIONS Figure 2 5 CONNECTORS 1. Power supply connector ( G=, G0-) 24 VAC or 48 VDC 2. Opto isolated Field Bus serial connector Figure 3 Page 4 of 14

6 NETWORK SEPTUP pconet (Figure 4) features a button (push button) and two indicator LEDs (Status LED and RS485 LED) Figure 4pCOnet featuring button and indicator lights Push

If a change of address is required, please follow the steps below: 1. Install BACset configuration tool, available free-of-charge at www.ksa.carel.com. 2.

Immediately after reboot, press and hold the button until the Status LED turns RED and flashes slowly 3 times. The button must be released before the end of the 3 flashes. 4.

7 6 NETWORK SEPTUP pconet (Figure 4) features a button (push button) and two indicator LEDs (Status LED and RS485 LED) Figure 4pCOnet featuring button and indicator lights Push button When starting up pconet, the push button is used to set up the network address. In the case of the EC-FAN GATEWAY the address has already been set up. If a change of address is required, please follow the steps below: 1. Install BACset configuration tool, available free-of-charge at 2. Connect pconet to PC using RS485 to USB dongle. Note that RS485 to USB dongle is not part of the scope of delivery. 3. Immediately after reboot, press and hold the button until the Status LED turns RED and flashes slowly 3 times. The button must be released before the end of the 3 flashes. 4. Start BACset, choose MS/TP and No Router (as shown in Figure 5). 5. By default, the pcoweb Device Instance will be (as shown in Figure 6). Change the variable to match BACnet BMS network. Figure 5 pcoweb to PC connection Figure 6 BACset configuration tool Page 5 of 14

8 Status LED Indicates the status of communication with the controller and the status of the pconet. Starting sequence: on power-up, or after restarting pconet, the Status LED switches in the following sequence: 1. OFF for 2 seconds 2. 2 seconds after restarting: quick flash red-green-red-green ; 3. 5 seconds after restarting: green on steady; 4. Around 50 seconds after restarting: flashing Quick green-off-green if communication is OK Slow red-off-red if communication has not been established Green-red-green if errors or temporary lack of response from card RS485 LED Indicates the status of communication with the BACnet MS/TP network (RS485). Starting sequence: on power-up after rebooting pconet, the RS485 LED switches in the following sequence: 1. OFF for around 50 seconds 2. Around 50 seconds after restarting pconet: slow green-red-green-red: at the end, BACnet will be active: flashing Green with occasional red flashes if communication is OK (BACnet MS/TP meaning green ON = pconet keeps the Token (control of the MS/TP network); green OFF = pconet DOES NOT keep the Token; red on = Poll-For-Master, search for a Master to pass the Token to); Green and red ON together (BACnet MS/TP meaning: continuous Poll-for-Master): communication not established (connection problems, or no network device found); this may depend on electrical connection difficulties or communication settings that are not compatible with the other network devices connected. Page 6 of 14

EC-Control is to be used to assign addresses for the respective fans. The EC-FAN GATEWAY will not automatically assign addresses to the fans that are required on its network.

this is to avoid any confusion when a new fan unit is to be added to an existing network. Ebmpapst fans are by factory default addressed 1.

9 7 GATEWAY SETUP 7.1 Adressing fans Before the set up of the EC-FAN GATEWAY the number of active ebm-papst fans that are to be connected to the ECFAN GATEWAY will have to be pre-programmed via EC-Control. EC-Control is to be used to assign addresses for the respective fans. The EC-FAN GATEWAY will not automatically assign addresses to the fans that are required on its network. ebm-papst recommends that the first fan be programmed at address 2 and the following fans thereafter to be programmed at n+1.this is to avoid any confusion when a new fan unit is to be added to an existing network. Ebmpapst fans are by factory default addressed 1. Ensure that the fans are not connected to the EC-FAN GATEWAY before the device has been appropriately programmed. Power down the fans. Attach the communication cables to point 2 as per Figure 3 and power up the fans. 7.2 Installing fans to be recognized by the EC-FAN GATEWAY Once the EC-FAN GATEWAY device has locaded the following screen will appear: Press once to access Main Menu (At any point during the setup, pressing will return to user to the main menu.) Use arrows to locate Service command. Press Figure Assigning the number of active devices Select d. Service Settings by using arrows. Press Figure Password Entry The default password is Use arrows to scroll in order to obtain desired values for Password entry. Once desired values are obtained, press Figure 9 Page 7 of 14

7.2.3 Choosing the number of devices Choose a.settings by using to scroll and press to choose option. Press to edit the number of devices in use.

The Univeral Gateway device recognises a maximum of 30 fans. Offline Delay and Offline Recall are set a default of 10s and 2s respectively. User to choose mode of fan control by scrolling.

Select YES for all fans that are to be active. All active fans can be controlled by the administrator.

10 7.2.3 Choosing the number of devices Choose a.settings by using to scroll and press to choose option. Press to edit the number of devices in use. Select total number of devices that are to be connected by scrolling Figure 10. Press once desired value is obtained (as shown in Figure 10). The Univeral Gateway device recognises a maximum of 30 fans. Offline Delay and Offline Recall are set a default of 10s and 2s respectively. User to choose mode of fan control by scrolling. Press once desired option is selected. Figure 11 On the same screen scroll down and push option. Select YES for Enable Fan option by using for Enable Fan and press. Select YES for all fans that are to be active. All active fans can be controlled by the administrator. If this option is selected as NO, you will not be able to configure the respective fan nor will the fan show as an active device. Figure 12 Exit screen by pressing. Choose value 12 for both Ramp up time and Ramp down time using. Once desired value is selected press. Run Direction will have to be checked against the respective fan Datasheet. If in doubt, consult your ebm-papst representative. Run direction: right = clockwise; left = counterclockwise. Page 8 of 14

7.2.4 Adressing the fans on the EC-FAN GATEWAY controller Press 3 times to return to Main Menu. Select C. Manufacturer, enter default password as described in Selection 6.2.2 and then select b.

The address entered will have match the address that has been initially assigned to the fan via EC-Control. Repeat steps for multiple fans.

11 7.2.4 Adressing the fans on the EC-FAN GATEWAY controller Press 3 times to return to Main Menu. Select C. Manufacturer, enter default password as described in Selection and then select b.i/o Configuration by scrolling via and pressing. Figure 13 Here you will assign the appropriate address to the respective Fan. The address entered will have match the address that has been initially assigned to the fan via EC-Control. Repeat steps for multiple fans. ebm-papst recommends that the first fan be programmed at address 2 and the following fans thereafter to be programmed at n=1. Figure Manually setting speed Choose the following option if you want to manually control the fan speed: Select B. Service, press. Select d.service Settings, press. Select b.manual. Figure 15 Page 9 of 14

Repeat speed if there is more than one fan in the application.

12 Press to access edit mode. Here you can enter the desired speed as described in the below steps. Speed is displayed in rpm. Press or to aquire desired speed value. Figure 16 Press again once appropriate speed is selected. Fan will operate at requested speed. Repeat speed if there is more than one fan in the application. Note: following recovery from a power failure the device will revert to the rpm value that is entered in manual value Viewing real-time fan data Return to the main menu by pushing or. Pressing or keys will allow the user to view data for the specific fan that is desired. Figure 17 Page 10 of 14

13 7.2.7 Alarm In case the fans have been disconnected from the device or if they are not addressed appropriately the EC-FAN GATEWAY will give off an audible alarm. To view the alarm, press. The description of the respective problem will be displayed in the alarm log. Once you have viewed the alarm screen, press. The beeping sound will cease. Unless the problem is rectified, the EC-FAN GATEWAY will continue to indicate an alarm warning. The beeping sound will persist and the description of the respective problem will be displayed in the alarm log. Table 1 Read and Write variables registers Register Number Fan 1 Register Number Fan (X) Register Type Comments Fan Address 1 Write Values Speed Input 5 Write Values Ramp Up 13 Write Values Ramp Down 14 Write Values (30(x-1)+ Register Number Fan 1) Take note all variables are at a Factor of 0.1 Maximum Speed 12 Read Only Actual Speed 19 Read Only DC Link Voltage 21 Read Only DC Link Current 22 Read Only Input Power 23 8 READ / WRITE VARIABLES Read and Write variable registers Table 1 describes the Read and Write type variables for the first MODBUS fan (Fan 1) in an installation. Take note that each MODBUS fan has 30 registers assigned on the EC-Fan Gateway device. Please apply the formula found under Register Number Fan (X) to determine the appropriate register number for the different variables that represent Fan 2,3 31. For example, if you were to change the Ramp Up time on Fan 2 then you will be writing a value at register 43 (30(2-1)+13 = 43). Subsequently, the Ramp Up time for Fan 3 is assigned to register 73. Take note that if the address is changed digitally via the building management system, this address change will also have to be implemented on the EC-Fan Gateway device. Once the above steps are completed your EC-FAN GATEWAY has been successfully set up. If you have further questions please contact your ebm-papst representative or your nearest ebm-papst office. Page 11 of 14

14 2017/09 v4 Page 12 of 14

EC-FAN GATEWAY (ECGK-CT0) Operating Manual

EC-FAN GATEWAY (ECGK-CT0) Operating Manual The engineer s choice TABLE OF CONTENT 1. INTRODUCTION 1.1 Installation 1.2 Power Supply 1.3 Installation warnings 2. TECHNICAL SPECIFICATIONS 2.1 Scope of delivery