1. Check the panel terminal wiring after shutdown;
2. Restart the inverter;
3.If the fault message still exists,contact the manufac-
turer.
Leakage current
is too high
1 .Restart the machine;
2.If the fault information still exists,contact the man-
ufacturer.
Panel voltage is
too high
1 .Disconnect the DC switch immediately and confirm
the voltage;
2.After the normal voltage is restored,if the fault mes-
sage still exists,contact the manufacturer.
Low panel insula-
tion resistance
1.After shutting down, check whether the panel shell
is reliably grounded;
2.If the fault message still exists,co ntact the manu-
facturer.
The mains volt-
age is abnormal
1 .Check the grid voltage;
2.If the grid voltage has recovered to the allowable
range and the fault information still exists,contact the
manufacturer.
1.Please check the mains terminal;
2.If the fault message still exists,co ntact the manu-
facturer.
1 .Check the AC side line connection after shutdown;
2.If the fault message still exists,co ntact the manu-
facturer.
Zero ground de-
tection anomaly
1.Check the ground wire after shutting down to ensure
thattheg round wire is connected reliably;
2.If the fault message still exists,co ntact the manu-
facturer.
1 .Detect grid frequency and restart;
2.If the fault message still exists,co ntact the manu-
facturer.
Output overload
protection
1 .Check output load, reduce load power;
2.If the fault information still exists,contact the man-
ufacturer
Reverse connec-
tion of current
transformer
1.Check the connection direction of the current trans-
former after shutdown;
2.If the fault information still exists,contact the man-
ufacturer.
Communication
failure of current
transformer
1 .Please check the communication line;
2.If the fault information still exists,contact the man-
ufacturer.
1 .The pairing of the machine and the current trans-
former is overtime, re-pair;
2.If the fault information still exists,contact the man-
ufacturer;
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