User Manual 8 Troubleshooting and Maintenance
57
010 Grid failure (Islanding)
1. Check whether AC circuit breaker is
triggered.
2. Check whether AC cables are all firmly
connected.
3. Check whether grid is not in service.
4. If all conditions are OK and this fault still
occurs in the LCD screen, contact Sungrow
over-current.
The DC current
injection of AC current
exceeds the upper
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
012
1. Check the PV strings for ground fault.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
014
10-
The average grid
voltage exceeds the
permissible range for
1. Check whether the inverter selected
country code is the country you are in.
2. Wait a moment for inverter recovery.
3. Check the voltage of the grid. If the grid
voltage exceeds the permissible range of
inverter protection parameters, ask utility
grid company for solution.
4. If the fault occurs repeatedly, contact
exceeds the protective
value, which is higher
1. Check the model of the AC cables.
2. Wait a moment for inverter recovery.
3. If the grid voltage exceeds the
permissible range, ask utility grid company
for solution.
4. If the fault occurs repeatedly, contact
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
020
Bus over-voltage.
The bus voltage
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.