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Grid voltage
10
exceeds the
permissible range
Grid frequency
11
exceeds the
permissible range
DC component of
the electricity
12
exceeds the
permissible range
grid voltage exceeds the
Safety regulations
grid frequency exceeds the
Safety regulations
the current exceeds 1A in
stastic state and 4A in
dynamic state
W-HHS-3000/3680/5000/6000 USER MANUAL 32
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting the normal power grid, and there is no
need to deal with it.
2. In case of frequent occurrence but automatic recovery, please
confirm if the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the monitored
operational limits after informing the electric utility company first.
⒊If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal is in good connection
③whether the power supply line is normal
④whether the AC cable wiring (such as wire length and wire
diameter) complies with the user manual guidance
⑤whether the safety regulation settings are normal
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting the normal power grid, and there is no
need to deal with it.
2. In case of frequent occurrence but automatic recovery, please
confirm if the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the monitored
operational limits after informing the electric utility company first.
⒊If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal is in good connection
③whether the power supply line is normal
④ whether the safety regulation settings are normal
Disconnect the inverter from the utility grid and the PV array, and
reconnect it after LED turns off. If this fault is still being displayed,
please contact the service.
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