Alpha ESS SMILE5 Installation, Operation & Maintenance Manual page 92

90
100008 GFCI_fault
100010 Grid_relay_fault
100012 PV_Reverse
100025 BAT_OVP
Maintenance and Troubleshooting
1. If it occurs frequently and accompanied by an
insulation resistance alarm, please check accord-
ing to the abnormal insulation resistance alarm
repair guidence;
2. If it occurs frequently, accompanied by other
alarms, and the inverter has been unable to con-
nect to the grid for power generation, it can be
judged that the inverter is faulty and contact
customer service for further check.
1. If it occurs occasionally, it is caused by a
short-term abnormality of the power grid, and
the inverter can automatically recover without
processing.
2. If it occurs frequently or continuously, please
refer to the guidence of grid voltage high alarm
for troubleshooting. If there is no abnormality
on the grid side, it can be judged that the in-
verter is faulty (if there is damage to the relay
after opening the cover, it can be concluded),
please contact customer service center for fur-
ther check.
Check whether the cables of PV strings are cor-
rectly connected.If they are connected reversely,
reconnected the cables.
1. If the alarm occurs during the initial installa-
tion, check whether the battery voltage is within
the allowable range;
2. If the alarm occurs during operation, it may
occur during charging. Check whether the bat-
tery wiring is loose, and whether the BMS com-
munication is abnormal lead to MOS disconnec-
tion.