UM0012_ASW 5-10k Series_EN_V03_0522 51
Presumable
Fault
• Check the grid voltage, grid usability.
• Check the AC cable, grid connection on the
inverter.
If this fault is still being shown, contact the service.
36
• Make sure the grounding connection of the
inverter is reliable.
•Make a visual inspection of all PV cables and
modules.
If this fault is still shown, contact the service.
37
• 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 lies within the permitted range
and the fault still occurs, please call service.
38
•Check the PV array’s insulation to ground and
make sure that the insulation resistance to ground
is greater than 1 MOhm. Otherwise, make a visual
inspection of all PV cables and modules.
• Make sure the grounding connection of the
inverter is reliable.
If this fault occurs often, contact the service.
40
•Check whether the airflow to the heat sink is
obstructed.
•Check whether the ambient temperature around
the inverter is too high.
41, 42
43, 44
45, 47
• Disconnect the inverter from the grid and the PV
array and reconnect after 3 minutes.
If this fault is still being shown, contact the service.
61, 62
Check the DRED device communication or
operation
65
•Check if the ground line is connected with the
inverter ;