Code
Message
P518
PVB Over Current
Instant
P519
L1 Over Current
Instant
P520
L2 Over Current
Instant
P521
L3 Over Current
Instant
P522
Batt A Over Current
P523
PVA Over Current
P524
PVB Over Current
P525
L1 Over Current
P526
L2 Over Current
P527
L3 Over Current
P528
RCD Fault
P529
Batt B Over Current
P530
PVC Over Current
P532
Grid Relay1
P533
Grid Relay2
P534
Grid Relay3
P535
Grid Relay4
Description
Current level of the PV B is
instantaneously higher than the
limitation
Current level of the grid (L1) is
instantaneously higher than the
limitation
Current level of the grid (L2) is
instantaneously higher than the
limitation
Current level of the grid (L3) is
instantaneously higher than the
limitation
Current level of the battery A is
higher than the limitation
Current level of the PV A is higher
than the limitation
Current level of the PV B is higher
than the limitation
Current level of the grid (L1) is
higher than the limitation
Current level of the grid (L2) is
higher than the limitation
Current level of the grid (L3) is
higher than the limitation
Residual current level is higher
than the limitation
Current level of the battery B is
higher than the limitation
PVC level is higher than the
limitation
Grid relay is not operable (L1-1)
Grid relay is not operable (L1-2)
Grid relay is not operable (L2-1)
Grid relay is not operable (L2-2)
Troubleshooting
Solution
Automatically restart after
PV B Current is normal
Automatically restart after
Grid(L1) Current is normal
Automatically restart after
Grid(L2) Current is normal
Automatically restart after
Grid(L3) Current is normal
Automatically restart
after Battery A Current is
normal
Automatically restart after
PV A Current is normal
Automatically restart after
PV B Current is normal
Automatically restart after
Grid(L1) Current is normal
Automatically restart after
Grid(L2) Current is normal
Automatically restart after
Grid(L3) Current is normal
Automatically restart after
detecting fault
Automatically restart
after Battery B Current is
normal
Automatically restart after
PV C Current is normal
Automatically restart after
detecting fault
Automatically restart after
detecting fault
Automatically restart after
detecting fault
Automatically restart after
detecting fault
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