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 CAN bus. RS485 requires three prepared AWG 16 wires
connected to pins 1 to 3 on the 6-pin connector from the accessory kit. For CAN bus, connect two
prepared AWG 16 wires to pins 5 and 6.
Figure 47. CNJ13 Pin Assignment
Table 8: CNJ13 Pin Assignment
Communication Connector (CNJ11, CNJ12)
The CNJ11 and CNJ12 connectors are for communication with ESS controller or with other PCS in
parallel operation. Prepare two RJ45 connectors and 8 AWG 16 wires for each, and connect the wires
to the pin 1~2 and pin 4~7 of the RJ45 connector as the graphic and pin assignment below:
CNJ12 CNJ11
PIN 1
PIN 8
PIN 1
PIN 8
Figure 48. CNJ11, CNJ12 Pin Assignment
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