Alpha ESS SMILE5 Installation, Operation & Maintenance Manual page 99

Maintenance and Troubleshooting
110023 Grid Freq Alarm
110024 10min Grid Volt Alarm
110027 LN Reverse Alarm
110029 GFCI Alarm
3. Restart inverter and ensure whether the
fault is existing.
1. If it occurs occasionally, it is a short-term
abnormality of the power grid. The inverter
will resume normal operation after detect-
ing that the power grid is normal, and no
processing is required.
2. If it occurs frequently but can be auto-
matically recovered, you need to contact
the local power operator. After obtaining
permission, contact the custermer service
center to modify the inverter grid protec-
tion parameter settings.
3. If it occurs frequently but cannot be re-
covered for a long time, please contact for
repair.
The grid sliding average voltage exceeds
the allowable range, check the grid voltage
and sliding average voltage protection set-
tings.
Check whether the mains live wire and
neutral wire are reversed.
1. If it occurs frequently and accompanied
by an insulation resistance alarm, please
check according to the abnormal insula-
tion resistance alarm guidence;
2. If it occurs frequently, accompanied by
other alarms, and the inverter has been
unable to connect to the grid for power
generation, it can be judged that the in-
verter is faulty and contact customer ser-
vice for further check.
97