65
No.
Alarm name
Common causes
Corrective measures
11
Cell over-
temperature
alarm
Cell temperature
consistently exceeds
the set value alarm
threshold.
•
The PCS runs at reduced power
and then the fault is automatically
restored.
•
Check the temperature sensor for
abnormalities.
•
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.
12
Over-current
alarm
Current continuously
greater than set alarm
threshold.
•
Whether RACK unbalance, first
installation
unbalance,
system
standby rest ≥ 24 hours.
•
Does the alarm occur when the
discharge
SOC
is
low
and
disappears automatically when the
SOC recovers, it is recommended
to reduce the discharge depth.
•
Check
the
system
power
connection
row
for
proper
operation, the battery system for
large temperature differences and
abnormal air conditioning cooling.
The corrective measures mentioned above are for reference only. In case of any
fault, please contact the Customer Service Center of SUNGROW for professional
solutions.
5.3.2 BSC Fault / Alarm List
BSC: mainly collects signals from nodes such as temperature, fire, and UPS of the ESS.
Operation & Maintenance Instruction
