LIVOLTEK Hyper-2000 - Troubleshooting and Maintenance; Troubleshooting

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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).