Check if the communication
cable between BMS and
inverter is correctly and well
connected.
1. Move the DIP switch to the
correct position;
2. Check if the communication
cable between battery
modules is correctly and well
connected.
1) Ensure the power cable is
correctly and properly connected to
the power connector (XPLUG) of
the
BMS
2) If the first step still does not
work, contact your distributor or
Q CELLS directly.
6. Troubleshooting
34
35
6
Troubleshooting
6.1
Troubleshooting
+
Check the indicators on the front to determine the state of the Q.HOME BAT-G1
system. A warning state is triggered when a condition, such as voltage or
+
temperature, is beyond design limitations. The Q.HOME BAT-G1 system's BMS
periodically reports its operating state to the inverter.
+
When the Q.HOME BAT-G1 system falls outside the prescribed limits, it enters
into a
warning state.
Use the monitoring software on the inverter to identify what caused the warning.
The possible warning messages are as follows:
BMS_External_Err
The communication
between the
BMS and
an inverter is interrupted
Check if the communication
cable between the
BMS and
inverter is correctly and properly
connected.
BMS_Internal_Err
1) DIP switch on the
wrong position
2) The communication
between battery
modules is interrupted.
1) Move the DIP switch to the
correct position
2) Check if the communication
cable between the
battery
modules is correctly and
properly connected.
BMS_OverVoltage
Battery over voltage
BMS_LowerVoltage
Battery under voltage
BMS_ChargeOCP
Battery charge over
current protection
BMS_DishargeOCP
Battery discharge over
current protection
Warning Messages
Description
Troubleshooting
6. Troubleshooting
BMS_TemHigh
Battery over
temperature
BMS_TemLow
Battery under
temperature
BMS_CellImblance
The capacities of
cells are different
BMS_Hardware_Protect
Battery hardware
under protection
BMS_Insulation_Fault
Battery insulation
fault
BMS_VoltSensor_Fault
Battery voltage
sensor fault
BMS_TempSensor_Fault
Battery
temperature
sensor fault
BMS_CurrSensor_Fault
Battery current
sensor fault
BMS_Relay_Fault
Battery relay fault
BMS_Type_Unmatch
The type of BMS
is
unmatched
BMS_Ver_Unmatch
The version of
BMS
is
unmatched
Warning Messages
Description
Troubleshooting
INSTALLATION AND OPERATION MANUAL LITHIUM-ION BATTERY – Q CELLS
When a warning is reported, the inverter immediately stops its operation.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Contact your distributor or
Q CELLS directly for servicing.
Wait until the temperature of the
cells returns to the normal state.
Wait until the temperature of the
cells returns to the normal state.
INSTALLATION AND OPERATION MANUAL LITHIUM-ION BATTERY – Q CELLS
