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9. Troubleshooting
If the device fails to function as expected, check the list of common faults below before consulting the service
center.
Situation
Fault
Fault Event Description
Code
Current feedback into
60
the inverter is
detected.
The firmware version
71
of each inverter is not
the same.
The output current of
72
each inverter is
different.
80
CAN data loss
81
Host data loss
Synchronization data
82
loss
The battery voltage of
83
each inverter is not the
same.
AC input voltage and
84
frequency are detected
different.
AC output current
85
unbalance
AC output mode
86
setting is different.
1.
Restart the inverter.
2.
Check if L/N cables are not connected reversely in all inverters.
3.
For parallel system in single phase, make sure the current sharing cables
are connected to all inverters.
For supporting three-phase system, make sure the current sharing
cables are connected to the inverters in the same phase, and
disconnected to the inverters in different phases.
4.
If the problem remains, please contact your installer.
1.
Update the firmware of all inverter to the same version.
2.
Check the version of each inverter via LCD setting and make sure the
CPU versions are the same. If not, please contact your installer to
provide the latest firmware to update.
3.
After updating, if the problem still remains, please contact your installer.
1.
Check if shared cables are connected well and restart the inverter.
2.
If the problem remains, please contact your installer.
1.
Check if communication cables are connected well and restart the
inverter.
2.
If the problem remains, please contact your installer.
1.
Make sure all inverters share the same groups of batteries together.
2.
Remove all loads and disconnect AC input and PV input. Then, check
battery voltage of all inverters. If the values from all inverters are close,
please check if all battery cables are in the same length and in the same
material type. Otherwise, please contact your installer to provide SOP to
calibrate battery voltage of each inverter.
3.
If the problem still remains, please contact your installer.
1.
Check the utility wiring conncetion and restart the inverter.
2.
Make sure utility starts up at same time. If there are breakers installed
between utility and inverters, please be sure all AC input breakers can be
turned on at same time.
3.
If the problem remains, please contact your installer.
1.
Restart the inverter.
2.
Remove some excessive loads and re-check the load information from
LCD of the inverters. If the values are different, please check if AC input
and output cables are in the same length and in the same material type.
3.
If the problem remains, please contact your installer.
1.
Switch off the inverter and check LCD setting #28.
2.
For parallel system in single phase, make sure no 3P1, 3P2 or 3P3 is set
on #28.
For supporting three-phase system, make sure no "PAL" is set on #28.
3.
If the problem remains, please contact your installer.
44
Solution
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