60
No.
Fault name
Common causes
Corrective measures
4
Cell under-
voltage
failure
Single cell voltage
consistently below set
fault threshold.
•
Check that the BSC parameters
are set correctly.
•
Check for abnormal cell voltage.
•
Check the voltage sampling line for
abnormalities.
5
PACK
under-
voltage
failure
PACK voltage
consistently below the
set fault threshold.
•
Check that the BSC parameters
are set correctly.
•
Check for abnormal cell voltage.
•
Check the voltage sampling line for
abnormalities.
6
Total voltage
under-
voltage
failure
RACK voltage
consistently below the
set fault threshold.
•
Check that the BSC parameters
are set correctly.
•
Check for abnormal cell voltage.
•
Check the CMU motherboard high
voltage
acquisition
circuit,
hardware for abnormalities.
7
Low
temperature
failure of the
battery cell
Continuous charging
or discharging of the
battery at
temperatures below
the set failure
threshold at low
temperatures.
•
Check that the liquid-cooled unit is
enabled for heating.
•
Check
that
the
battery
compartment is well sealed.
•
Check
for
abnormal
core
temperature sensor connections.
8
Over-
temperature
failure of the
battery cell
Cell temperature
consistently exceeds
set failure threshold.
•
Check that the liquid-cooled unit is
enabled for cooling.
•
Check
that
the
battery
compartment is well sealed.
•
Check
that
the
battery
power
connection row is in good condition.
•
Check for dummy soldering of the
cores in the PACK.
•
Check if the individual temperature
sensors are abnormal.
9
Overcurrent
faults
Continuous current
greater than set fault
threshold.
•
Check that the BSC parameters
are set correctly.
•
Check
the
system
power
connection
row
for
proper
operation.
Operation & Maintenance Instruction
