User manual

-27-
EPO 30
Fault Code
Bus fault 05
Inverter fault 06
Overload fault 07
Over temperature fault 08
Inverter short 14
Bus short 28
If the UPS system does not operate correctly, please attempt to solve the
problem using the table below.
Problem Possible cause Remedy
No indication, no
warning tone even
though system is
connected to mains
power supply
No input voltage Check building wiring socket
outlet and input cable.
BYPASS LED light
up even though the
power supply is
available
Inverter not
switched on
Press On-Switch “I”.
BATTERY LED lights
up, and audible
alarm sounding
every 1 beep in
every 4 seconds
Mains power
supply has failed,
or Input power
and/or frequency
are out of
tolerance
Switching to battery mode
automatically.
Check input power source
and inform dealer if
necessary.
Emergency supply
period shorter than
nominal value
Batteries not fully
charged / batteries
defect
Charge the batteries for at
least 5 - 8 hours and then
check capacity. If the
problem still persists, consult
your dealer.