25
V220308
Caution:
Before replacing the battery module for service, charge/discharge the existing battery
modules until its voltage is similar to the voltage of the replacement. Otherwise the system needs
long time to do the balancing for this replaced battery module.
4.
System Debug
This system debug is for the Battery Energy Storage System (BESS). The
system can’t do the debug
itself. It must be operated with configured inverter, UPS, PCS and EMS system together.
Debug Step
Content
Preparation of debug.
Turn on the BESS, refer to chapter 3. Before turning on the whole BESS,
turning on the load is
not allowed!
Remark: Except the BESS, if other equipment has its own system turn on
steps, follow the operation manual.
Working together with
inverter
1) Check the communication cable
’s
connection and make sure
the cable order on battery and inverter side are matched. All
undefined pins are suggested to be empty.
2) Check the baud rate of the inverter. The default of battery CAN is
500kbps, MODBUS 485 is 9600bps. If necessary, change the baud rate
of RS485.
3) Check the terminal resistance:
CAN 120 Ω, 485 120 Ω
4) If necessary, check the setting on the inverter or control box, if it
has the right parameters and brand of battery. And check if the
information of the BESS shown on the inverter are correct.
