OPM_LPS_31E_8K0_20K_1GB_V010.doc 17/40 Operating Manual LP 31 / 8-10-15-20 kVA
4.2 START-UP
1. Switch on the UPS with switch “inverter ON/OFF” (7), MCB “mains ON/OFF” (8) and
MCB “bypass ON/OFF” (9).
If battery extension packs are part of the system, turn the DC-MCBs on the UPS as
well as on the extension pack(s) into “ON” position.
The green LED “operation” will illuminate.
The UPS is capable of handling the high inrush currents of the (starting) load.
This means that all equipment protected by the UPS can be switched on by simply
switching on the UPS.
The simultaneously occurring inrush currents of the loads do not immediately cause
bypass operation.
After switch-on the UPS will perform a self-test and the display will show:
SELFTEST
IN PROGRESS
After completion of the self-test the output voltage of the UPS is available.
The display will show the default screen: model and actual load (values are examples).
LP 15-31
load 37%
In case of a system failure the self-test results in a failure message; this message is
displayed for 30 seconds before the self-test is repeated automatically.
If the faulty situation persists, switch OFF the UPS and contact your dealer.
2. Though the batteries (the internal energy reserve) were fully charged when the UPS
left the factory, they might have lost some energy during transportation and storage.
It is recommended to allow the UPS to recharge the batteries during a few hours
period: provided that mains power is present, leave the UPS switched on and:
- either do not connect computer equipment yet;
- or connect the computer equipment to the bypass supply for a few hours by turning
the manual bypass switch (10) into position “2”.
This way you ensure that the UPS can provide sufficient autonomy time in case of a
mains power failure (see chapters 2.3 and 2.4).
3. If not yet switched on, the equipment connected to the LP 31 UPS can be switched on
now; operate as usual.
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