PowerWalker VFI 10000TCP 3_1 - Manual (Page 57)

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Inv Under Voltage
Alarm code:33
UPS internal fault Consult dealer.
Inv Softstart Fail
Alarm code:34
UPS internal fault Consult dealer.
Negative Power Fault
Alarm code:E1
The load is pure
inductive and
capacitive Remove some non-critical loads.
Bypass supplies the load first, ensure
there is no overload, then turn on UPS.
Cable male and female
Loss fault
Alarm code:E2
The parallel cable
is disconnected Check the parallel cable.
Backfeeder
Alarm code:93
UPS internal fault Don’t touch any terminal of the
equipments which connect one utility
power with the UPS even you cut off the
utility power. Please Consult dealer.
7.3 Trouble Shooting In Else Cases
Problem Possible cause Remedy
No indication, no
warning tone even
though system is
connected to mains
power supply
No input voltage Check the building wiring and input
cable.
Check if the input breaker is closed.
BYPASS LED light up
even though the power
supply is available
Inverter not switched
on
Press On-Switch “I” to turn on UPS.
BATTERY LED lights up,
and audible alarm
sounding every 1 beep
in every 4 seconds
Input voltage and/or
frequency are out of
tolerance
Check input power source.
Check the building wiring and input
cable.
Check if the input breaker is closed.