LIVOLTEK Hyper 5000 - Troubleshooting and Maintenance

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9. Troubleshooting and Maintenance
WARNING
• Before maintaining and commissioning inverter and its peripheral distribution
unit switch off all the charged terminals of the inverter, and wait at least 10
minutes after the inverter is powered off.
9.1 Troubleshooting
When the inverter has an exception, its basic common warning and exception handling
methods are shown in the table below.
Alarm Name
Possible causes
Suggestion
PV1 Over Volt
PV input voltage is not within
permissible range.
Check the voltage and number of PV modules
and adjust it if need. Wait for recovery or
restart the system.
PV2 Over Volt
PV1 Over Current
PV input current is not within
permissible range.
Check the PV input power and configuration.
Wait for recovery or restart the system.
PV2 Over Current
PV1 Strings
Reverse
The cables of PV strings are
connected reversely.
Disconnected the DC Switch. Check the
cables of PV strings and reconnect the cables
if need.
PV2 Strings
Reverse
PV Energy Weak
Insufficient power supply from
PV strings.
When sunlight intensity weakens, no action is
needed. Otherwise, check if there is shielded,
or short circuit, open circuit etc. in the PV
strings.
Leakage Over
Current
The leakage current exceeds the
permissible range.
Check PV cable ground connection and adjust
it if need.
Contact your dealer for technical support if
the error happens again.
Earth Fault
The earth fault occurs
Check the connection of grounding and the L-
line & N-line and adjust it if need.
Contact your dealer for technical support if
the error happens again.
AC Volt Fault
AC voltage is not within
permissible range.
Check the setting of the safety country and
AC voltage (L & N).
AC Freq Fault
Grid frequency is not within
permissible range.
Check the setting of the safety country,
frequency and the connection of AC cables.
Contact your dealer for technical support if
the error happens again.