7.2PROCEDURES FOR PARALLEL SYSTEM LP 33 Series

7.2.1Parallel System start-up of the LP 33 Series

Before connecting hazardous voltages, make sure that:

The connection to the electrical system has been performed by qualified personnel;

The equipment frame has been correctly grounded to the main earth;

Make sure that mains input protection is removed;

All the panels removed to allow the UPS connection have been correctly reinstalled;

The UPS switches Q1 and Q2 are OFF (Pos. 0);

The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.

This procedure must be performed for the first start-up following the installation, with all the units completely switched Off and not powered.

This procedure presupposes that the load is not yet supplied by the UPS system.

NOTE !

The UPS can be started-up using the battery supply in case the input mains should be unavailable.

To avoid an incidental battery discharge, it is recommended to proceed to the UPS start-up having the input mains available.

1.Switch ON the mains power for each unit at the input distribution panel.

As a result each unit performs a self-test and the LCD will show the following screen:

The LCD screen will display the number of the unit in the parallel system (P1, P2, P3 or P4).

NOTE !

In case the alarm “4410 - Mains bypass out of tolerance” persists, please contact your Service Center.

EXECUTING MAINBOARD

SELF TEST

00000000000 SELF TEST OK!

2.Insert the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on each unit.

 

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Operating Manual LP 33 Series 30 & 40 kVA

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GE manual Procedures for Parallel System LP 33 Series, Parallel System start-up of the LP 33 Series

LP 33 specifications

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