Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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59
Fault name
Triggering
condition
Recovery
condition
Corrective measures
current is higher
than 350A for 5s, or
in operation mode,
the DC voltage is
lower than 100V for
500ms.
disappears
continuously
for 2min
without other
faults.
repeatedly occurs, please contact
SUNGROW.
For further troubleshooting operations please refer to the PCS user manual for the
specific project.
5.3 BESS Faults and Corrective Measures
5.3.1 CMU Fault/Alarm List
CMU: The Cluster Management Unit enables the daily management and monitoring of the
battery clusters.
table 5-1 CMU Fault List
No. Fault name Common causes Corrective measures
1
Cell over-
voltage
faults
Single cell voltage
consistently exceeds
set fault threshold.
• Check that the BSC parameters
are set correctly.
• Check for abnormal cell voltage.
• Check the voltage sampling line for
abnormalities.
2
PACK over-
voltage fault
PACK voltage
consistently exceeds
set fault threshold.
• Check that the BSC parameters
are set correctly.
• Check for abnormal cell voltage.
• Check the voltage sampling line for
abnormalities.
3
Total voltage
over-voltage
fault
RACK voltage
consistently exceeds
the set fault threshold.
• Check that the BSC parameters
are set correctly.
• Check for abnormal cell voltage.
• Check the voltage sampling line for
abnormalities.
Operation & Maintenance Instruction 5 Troubleshooting