User manual TOSHIBA BMS-IFDD02E2 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. [. . . ] · Humid or wet place · Dusty place · Place exposed to direct sunlight · Place where there is a TV set or radio within one meter · Place exposed to rain (outdoors, under eaves, etc. ) Installation Space and Maintenance Space A side space for connecting through cable inlets and an upper space for maintenance must be reserved before installation. The other sides can be adjacent to surrounding objects. 100mm 100mm 100mm 4 2 Connection of Power cables/Earth wires/ Signal wires CAUTION The RS-485 signal wire has polarity. 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. Power cable N L DI4 DI3 DI2 DI1 SW1 SW2 A B FG DI8 DI7 DI6 DI5 Digital input contacts Touch Screen Controller DO1 DO2 DO3 DO4 GND +12V RS-485 Digital output load Length of stripped power cable 35 10 Length of stripped communication wire 35 6 Length of stripped digital Input/Output connector 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 cables 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) CAUTION Wiring Connection If an inductive load (relay coil) or a bulb is connected, a surge voltage or rush current will be generated. Take adequate measures against surge voltage or rush current. The following describes wiring connections of the Digital Input/Output 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 Digital Input/Output 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. Other shield lines should be closed, and the terminal end should be open and insulated. · Connection of external digital inputs Input circuit examples are shown below (electrically isolated using a photo-coupler). (1) Example of contact input connection 12V (2) Example of current sink connection 12V Input terminal DI-1 to DI-8 Contact Input terminal DI-1 to DI-8 Current sink · Connection of external digital outputs Output circuit examples are shown below (open collector output electrically isolated using a photocoupler). (1) Example of load connection 12V Output terminal DO1 to DO4 Load External power supply (2) Example of load connection 12V +12V GND Output terminal DO1 to DO4 6 2 Connection of Power cables/Earth wires/ Signal wires (continued) Crimp 3 wires with a closed end wire joint. Yellow Brown Connection diagram A U2 U1 FG NL B B Red A Orange Red/Orange Brown/Yellow Power supply A B RS-485 TCC-LINK Connect the shield wire of the two wires TCS-NET RELAY INTERFACE SW1 TOUCH SCREEN CONTROLLER 4 ADDRESS DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 DI 7 DI 8 Input contact 1 Input contact 2 Input contact 3 Input contact 4 Input contact 5 Input contact 6 Input contact 7 Input contact 8 The RS-485 signal wire has polarity A and B. [. . . ] When SW4 is pushed, the respective input status of DI-5 to DI-8 is indicated by LED2 to LED5. (*) To return to the normal operation, reset SW2 to "zero (0)" and push SW7. SW4 OFF SW4 ON LED2 Displays DI-1 input status. Input ON: LED lights Input OFF: LED turns off LED4 Displays DI-3 input status. [. . . ]