User manual TOSHIBA BMS-IFWH4E2 INSTALLATION MANUAL

[. . . ] · After the installation work, perform a trial operation to check for any problem. Follow the Owner's Manual to explain how to use and maintain the unit to the customer. Ask the customer to keep this Installation Manual together with the Owner's Manual. WARNING · Ask an authorized dealer or qualified installation professional to install or reinstall the relay interface. [. . . ] If connected with incorrect polarity, the unit will not work. REQUIREMENT Disconnect the appliance from the main power supply. This appliance must be connected to the main power supply by a circuit breaker or switch with a contact separation of at least 3mm. Power cables/Earth wires/Signal wires Connect power cables, earth wires, and signal wires to the specified terminals on the terminal block. Secure each cable with a cable clamp. SW3 ON 1234 SW4 SW7 Connect the earth wire to the earth terminal on the chassis. Secure each cable with a cable clamp. DI4 DI3 DI2 DI1 SW1 SW2 Power meter N Power cable L RS-485 DI8 DI7 DI6 DI5 Touch Screen Controller Length of stripped power cable 35 10 Length of stripped communication wire 35 6 AB Length of stripped power meter wire 35 6 55 10 Insert the wire by pushing the lever with a screwdriver. Check that the wire is inserted securely. When inserting two RS-485 communication wires into a single terminal for connection to another interface, crimp them using the attached pin terminal. 5 2 Connection of Power cables/Earth wires/ Signal wires (continued) Wiring Connection The following describes wiring connections of the Energy Monitoring Relay Interface when it is used in the air conditioner control system. · Terminator resistor setting Set the RS-485 terminator resistor by the TCS-NET Relay Interface. Do not set it by the Energy Monitoring Relay Interface. · Shield earthing The shield earth of the RS-485 signal wires should be single-point earth. Earth the wires on the Touch Screen Controller side. Other shield lines should be closed, and the terminal end should be open and insulated. · Connection of power meter Use a power meter with a pulse generator. Connect the non-voltage contact output of the power meter to the Energy Monitoring Relay Interface. An external input circuit is shown below. Input signal is electrically isolated by photo-coupler. (1) Example of contact input connection 12V Input terminal DI-1 to DI-8 Power meter (with pulse generator) Contact Energy Monitoring Relay Interface (2) Example of current sink connection 12V Input terminal DI-1 to DI-8 Power meter (with pulse generator) Current sink Energy Monitoring Relay Interface 6 2 Connection of Power cables/Earth wires/ Signal wires (continued) Connection diagram Yellow Brown Crimp 3 wires with a close end wire joint. B A U2 U1 FG TCC-LINK RS-485 Red A Orange B Power supply A B NL TOUCH SCREEN CONTROLLER Brown/Yellow Red/Orange TCS-NET RELAY INTERFACE SW1 4 ADDRESS DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 DI 7 DI 8 Power meter 1 Power meter 2 Power meter 3 Power meter 4 Power meter 5 Power meter 6 Power meter 7 Power meter 8 Power supply RS-485 ENERGY MONITORING INTERFACE The shield earth of the RS-485 signal wires should be single-point earth. Earth the wires on the Touch Screen Controller side. Do not earth here. SW1 AB Connect the respective shield wires of two cables. NL CAUTION: RS-485 signals A and B have polarity. Be careful when connecting the RS-485 wire. 1 ADDRESS Power supply Set the Energy Monitoring Relay Interface address with SW1. [. . . ] Confirming procedure: Set the operation mode switch SW2 to "3", and push the reset switch SW7 to enter the test mode. Unless SW4 is pushed, respective input status of DI-1 to DI-4 is indicated by LED2 to LED5. When SW4 is pushed, respective input status of DI-5 to DI-8 is indicated by LED2 to LED5. [. . . ]