Sungrow SG125HX, User Manual

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76
F Fa au ulltt C Co od de e
D De essc crriip pttiio on n
C Ch he ec ckk m me etth ho od d
008
Grid overfrequency,
Grid frequency
exceeds the upper limit
of the inverter.
Generally, the inverter will be reconnected
to the grid after the grid returns to normal. If
the fault occurs repeatedly:
1. Measure the actual grid frequency, and
contact the local electric power company
for solutions if the grid frequency is beyond
the set range.
2. Check whether the protection parameters
are appropriately set via the App.
3. If the fault is not caused by the foregoing
reasons and still exists, contact SUNGROW.
009
Grid underfrequency,
Grid frequency is lower
than the lower limit of
the inverter.
010
Grid power outage, AC
switch or circuit is
disconnected.
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
connected 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.
011
Device anomaly
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.
9 Troubleshooting and Maintenance User Manual