OPM_LPS_31E_8K0_20K_1GB_V010.doc 39/40 Operating Manual LP 31 / 8-10-15-20 kVA
SELFTEST FAILURE
IC STEP UP The step-up converter, which is a part of the input converter,
failed during start-up.
Please contact your dealer.
SELFTEST FAILURE
EXT. BATTERY Checking the external batteries, the UPS detected a failure in
the hardware.
SELFTEST FAILURE
Uic TOO LOW Malfunction of input circuit: voltage delivered is too low.
The batteries may be faulty or depleted.
Wait for a few hours, leave the UPS switched on.
If absence of input power (mains failure, maintenance work)
is expected to last longer than a few hours, switch OFF the
UPS to save battery power.
If the UPS input power is absent for several days and the
UPS remains on under no-load conditions, the batteries can
be discharged very deeply, resulting in a short battery
lifetime.
SELFTEST FAILURE
Q4 NOT OK Hardware output voltage detection “Q4” is active.
In case of a system failure the message is displayed for 30
seconds before the self test is repeated.
If the faulty situation persists, please contact your dealer.
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