88 User Manual UM0007_ASW3000-5000H-S_EN_V01_0321
12 Troubleshooting
When the PV system does not operate normally, we recommend
the following solutions for quick troubleshooting. If an error
occurs, the red LED will light up. The
re will have “Event
Messages" display in the monitor tools. The corresponding
corrective measures are as follows:
Object
Erro
r
code
Corrective measures
Presuma
ble Fault
6
• Check the open
-circuit voltages of the
strings and make sure it is below the
maximum DC input voltage of the inverter.
• If the input voltage is within the permitted
range and the fault still occurs, it might be
that the internal circuit has broken. Contact
the service.
33
• Check the grid frequency and observe
how often major fluctuations occur.
If this fault is caused by frequent
fluctuations, try to modify the operating
parameters after informing the grid
operator first.
34
•Check the grid voltage and grid connection
on inverter.
• Check the grid voltage at the point of
connection of inverter.
If the grid voltage is outside the permissible
range due to local grid conditions, try to