User Manual

03 Product Introduction User Manual V1.0-2022-10-15
06
3.3 PCU
No. Silk Print Parts Description
1 B+
Battery positive
terminal
To connect with the positive polarity of the battery
module.
2 QF3 DC circuit breaker Used when the BS is self-powered.
3 QF2 AC circuit breaker Used when the BS requires external power supply.
4 QF1
Main circuit
breaker
The main circuit breaker for the BS.
5 HRL Indicator To display the working status of BS.
6 B-
Battery negative
terminal
To connect with the negative polarity of the battery
module.
7 P-
Power input/
output port
(Negative)
To connect the inverter negative power port.
8 BMS POW
AC power supply
port
To connect the inverter AC output port.
9 P+
Power input/
output port
(Positive)
To connect the inverter positive power port.
10 COM
External COM
port
To connect the inverter for communication.
11
BMU
COM
Internal COM port To connect the battery module for communication.