Wiring Instructions
Installation Manual 46
BMS Communication Connector (CNJ13)
The CNJ13 connector is for communication between PCS and BMS. Communication with BMS is
handled in two ways, RS485/Modbus or CANbus. RS485 requires three prepared 1.32 mm
2
wires
connected to pins 1 to 3 on the 6-pin connector from the accessory kit. For CANbus, connect two
prepared 1.32 mm
2
wires to pins 5 and 6.
Figure 46. CNJ13 Pin Assignment
Table 7: CNJ13 Pin Assignment
Item Pin Assignment Notes
CNJ13
1: RS485-B3
For BMS2: RS485-A3
3: GND5
4: NC
For BMS (optional)5: CAN-H4
6: CAN-L4
CAN and Modbus/RTU (RS485) are both provided for different vendors of battery. When
Modbus/TCP IP (Ethernet) in system configuration is required to communicate with PCS,
install an Ethernet converter accordingly connected to CNJ13 in PCS.
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