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INVERTER-
LED lights up,
warning tone at
intervals (every
1 or 4 seconds)
Mains power supply
has failed
Not necessary, battery
operation;
warning tone at intervals
of 1 second means battery
is almost empty
INVERTER-LED
lights up, warning
tone in intervals (1
to 4 seconds),
mains power
supply available
I/P switch
disconnected
Set the I/P switch to „ON“.
If the problem persists,
please inform your dealer.
FAULT-LED
lights up,
warning tone
once a second
Overload
Reduce number of users at
UPS output
FAULT-LED
lights up,
permanent
warning tone
UPS-mistake
Notify dealer!!
Emergency
supply period
shorter than
nominal value
Batteries not fully
charged / batteries
defective
Charge the batteries for at
least 1 - 2 hours. Check
capacity. If the problem
still persists, consult your
dealer.