Installation and Operation Manual
26
8 Trouble Shooting
It is very easy for the inverter’s maintenance. When you meet any
problems, please refer to the following trouble shooting first, please
contact your local distributor if the problem can’t be solved by
yourself.
The following sheet lists some basic questions may encounter in the
operation.
Trouble Shooting
Alarm Message
Solutions
System
Faulty
Or
Failure
Type
Insulation
Resistance
Fault
(1) Turn off the inverter and restart it to check whether alarm
occurs again.
(2) If alarm still exists, check whether the resistance of PV +
to earth and PV – to earth > 2M
Ω
.
(3) If resistance
<
2M
Ω
, please contact inverter distributor and
PV array’s supplier.
Current
Leakage Fault
(1) Turn off the inverter and check whether peripheral facility
is leakage.
(2) After elimination of peripheral interference, connect to PV
array check leakage again, if still exists, please contact
your inverter distributor.
Grid Fault
(1) Check the local municipal Grid voltage and frequency
comply with that stipulated in this inverter’s specification.
(2) Wait for 2 minutes after alarm occurs, and check whether
the inverter can be automatically recovered itself, if not,
please contact local distributor.
No Grid
(1) Check whether the inverter is connected to municipal
Grid.
(2) Check the cable available between the inverter and
municipal Grid.
(3) Otherwise please contact local distributor.
Input DC
Overload
(1) Check whether open circuit voltage close to or greater
than 450V.
(2) If not please contact local distributor.
Communication
Fault
(1) Restart the equipment and check whether faulty still exists.
(2) If fault still exists, please contact distributor.