Sungrow SH10RT, User Manual

Page: 140 / 153

128
Alarm ID Alarm Name Corrective Measures
008
Grid
Overfrequency
Generally, the inverter will be reconnected to the grid
after the grid recovers. If the alarm occurs frequently:
1. Measure the grid frequency, and contact the local
utility grid company for solutions if the grid frequency
is beyond the specified range.
2. Check, through the App, whether the protection pa-
rameters are appropriately set.
3. If the alarm persists, contact SUNGROW.
009
Grid
Underfrequency
010
Grid Power
Outage
Generally, the inverter will be reconnected to the grid
after the grid recovers. If the alarm occurs frequently:
1. Check whether the grid supplies power reliably.
2. Check whether the AC cable is firmly in place.
3. Check whether the AC cable is correctly connected
(whether the live wire and the N wire are in correct
place).
4. Check whether the AC switch or circuit breaker is
disconnected.
5. If the alarm persists, contact SUNGROW.
012
Excessive Leak-
age Current
1. The alarm can be caused by poor sunlight or damp
environment, and the inverter will be reconnected to
the grid after the environment is improved.
2. If the environment is normal, check whether the AC
and DC cables are well insulated.
3. If the alarm persists, contact SUNGROW.
013 Grid Abnormal
Generally, the inverter will be reconnected to the grid
after the grid recovers. If the alarm occurs frequently:
1. Measure the grid frequency, and contact the local
utility grid company for solutions if the grid frequency
exceeds the specified value.
2. If the alarm persists, contact SUNGROW.
10 Troubleshooting and Maintenance User Manual