Single Phase Hybrid Inverter Troubleshooting
63
High static leakage
current
1. If the fault occurs occasionally, it
may be caused by accidental abnormality
of external cables. You can restart the
inverter to resume normal operation.
2. If the fault occurs frequently or
lasts long, check whether the PV string is
grounded reliably.
Restart the inverter. If the fault still exists,
contact your dealer.
Restart the inverter. If the fault still exists,
contact your dealer.
Check whether the inverter and PV panel
are grounded reliably. Power off the
inverter for 5 minutes and then power it
on again. If the fault still exists, contact
your dealer.
Inconsistent AC
voltage values
Restart the inverter. If the fault still exists,
contact your dealer.
Inconsistent BUS
voltage values
Inconsistent ISO
voltage values
Inconsistent PV
voltage values
Bus voltage
sampling error
One-level
under-voltage of AC
power
1. If the fault occurs occasionally, it may
be caused by momentary abnormality of
the power grid.
The inverter will resume normal operation
when the power grid gets back to normal.
2. If the fault occurs frequently, check
whether the power grid is connected
One level
over-voltage of AC
power