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 re-
stored automatically, please contact the lo-
cal power operator, after obtaining permis-
sion, modify the inverter grid protection
parameter settings to a suitable value
through the APP.
3. If it occurs frequently but cannot be re-
covered for a long time, please confirm:
1) Whether the AC circuit breaker discon-
nected
2) Whether the AC circuit breaker is dam-
aged (measure whether the voltage of the
inlet and outlet in the closed state is con-
sistent)
3) Check whether the AC terminals are in
good contact
4) Whether the power supply line is out of
power
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