6. Troubleshooting & Maintenance
6.2 List of Fault codes with definitions
Category
Diag.
level
Power Output
Fault
LED
CB
H/W
signal
Charge Discharge
V
o
ltage
Over voltage
(Max. Cell V)
Fault1
0%
100%
ON ON
-
Fault2
0%
0%
ON Trip ON
Under voltage
(Min. Cell V)
Fault1 100%
0%
ON ON
-
Fault2
0%
0%
ON Trip ON
Pack Under voltage
(Pack V)
Fault2
0%
0%
ON Trip ON
Cell Voltage
Difference
(Max cell V- Min cell V)
Fault1
0%
0%
ON ON
ON
Cur
rent
Charging over current
Fault1
0%
100%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Discharging over current
Fault1 100%
0%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Available charging
power limit over
(Charging power)
Fault1
0%
100%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Available discharging
power limit over
(Discharging power)
Fault1 100%
0%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Tem
p
er
ature
Over temperature
(Max. Cell Temp.)
Fault1
0%
0%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Under temperature
(Min. Cell Temp.)
Fault1
0%
0%
ON ON
-
Fault2
0%
0%
ON Trip
ON
Temperature deviation
(Max. Cell Temp.–
Min. Cell Temp.)
Fault1
0%
0%
ON ON
-
Com
m
un
ic
ati
o
n
Internal Communication
Fault1
0%
0%
ON ON
-
Fault2
0%
0%
ON Trip
ON
External Communication
Fault2
0%
0%
ON Trip
ON
