MGE UPS Systems 18/280 kVA user manual Energised

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The connections are the following :

Terminal

Connection

1

L1 upstream

2

L2 upstream

3

L3 upstream

4

N upstream

5

N downstream

6

L1 downstream

7

L2 downstream

8

L3 downstream

Earth

Earth (PE)

Table 9

The terminals must be properly tightened according to the size of the bolds.

Temperature switches are optionally foreseen on both the Lo and Zo elements for the detection of a possible over-heating. In that case, for each element, two voltage-free contacts are available :

Terminals

Connection

A1

- A2

Normally open contact ‘Warning’ (165°C)

D1

- D2

Normally closed contact ‘Alarm’ (190°C)

Table 10

These contacts are connected on two small terminal boards ( Fig. 2 - "9" ).

They are foreseen for a maximum current of 5A and a maximum voltage of 230V AC.

5.3.ENERGISING

For obvious safety reasons, the energising of the filter can only happen once the housing is perfectly secured.

During the energising of the filter, the loads downstream the CleanWave® filter will also be fed. It is the technician's responsibility to check that the downstream installation can safely be

energised.

Once the filter energised, the displays on the front side (IP21 version only) should indicate some upstream and downstream currents.

MGE UPS SYSTEMS

CleanWave - Installation and user manual

Page 10/13

 

Version 2.1.4 – 15/01/2007 -

 

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Contents CleanWave Index Introduction Presentation4/13 5/13 110 Safety CleanWave Electrical EngineeringInstallation and Starting CleanWave →Energised Maintenance Check that there is no voltage on the terminalsTroubleshooting Contact