Sungrow SG125HV-30, User Manual

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User Manual 8 Troubleshooting and Maintenance
63
Fault
code
Description Check method
015
Grid overvoltage,
The grid voltage is
higher than the set
protection value
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
1. Measure the actual grid voltage, and
contact the local electric power company for
solutions if the grid voltage is higher than the
set value.
2. Check whether the protection parameters
are appropriately set via the APP or the LCD.
3. Check whether the cross-sectional area of
the AC cable meets the requirement.
4. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
016
Output overload,
The
configured
module power is
excessively large
and out of the
normal operation
range
of the
inverter.
Wait for the inverter to return to normal.
If the fault still exists, contact Sungrow
Service.
017
Grid voltage
unbalance, the
inverter detects
unbalanced three-
phase grid voltage
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
1. Measure the actual grid voltage. If grid
phase voltages differ greatly, contact the
power company for solutions.
2. If the voltage difference between the
three phases is within the permissible
range of the local power company, modify
the grid voltage imbalance parameter
through the APP or LCD screen.
3. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
019-020 Device anomaly
Wait for the inverter to return to normal.
Disconnect the AC and DC switches, and
reconnect the AC and DC switches 15
minutes later to restart the inverter.
If the fault still exists, contact Sungrow
Service.