Sungrow SG33CX User Manual page 80

9 Troubleshooting and Maintenance
Fault
Description
code
Grid power outage,
AC switch or circuit
010
is disconnected.
011 Device anomaly
Excessive leakage
012
current
Grid abnormal, the
grid
frequency is out of
the
013
range,
inverter cannot be
connected to the
grid normally.
70
Check method
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
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 connected
to the correct terminal (whether the live wire
and the N wire are correctly in place).
4. Check whether the AC circuit breaker is
connected.
5. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
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.
1. The fault 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 fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
voltage or fault occurs repeatedly:
1. Measure the actual grid frequency, and
permissible contact the local electric power company for
and the solutions if the grid parameter exceeds the
set value.
2. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
User Manual