Emerson 50 and 60 Hz General, Ups Multi-Module Installation, Emergency power off connections UPS2

Models: 30-200kVA 400V 50 and 60 Hz

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3.0UPS MULTI-MODULE INSTALLATION

UPS Multi-Module Installation

3.0UPS MULTI-MODULE INSTALLATION

3.1General

The installation of a multi-module UPS configuration must follow the installation procedure for a sin- gle UPS module with the additional requirements detailed in this chapter.

In addition to the local EPO push button on the front panel of the UPS module (that stops operation of that module), the UPS supports also a remote emergency stop to permit simultaneous multi-module shutdown.

NOTES

1. The remote emergency power off switch must be voltage-free and Normally Open or Normally Closed.

2.The open voltage supplied is 12VDC, < 20mA

3.This external emergency stop may be supplied with a second set of contacts that can be used to trip incoming mains or bypass supply circuit breakers supplied by others and fitted with remote trip units.

4.Normally Closed EPO - X2: 1&2, these terminals are supplied factory-linked on the monitor board.

Figure 28 Emergency power off connections

UPS2

X2:3

X2:4 Monitor Board

X2:3

Monitor Board

X2:4

UPS1

EPO

UPS2

X2:1

Monitor Board

X2:2

X2:1

Monitor Board

X2:2

 

UPS1

EPO

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Page 57
Image 57
Emerson 50 and 60 Hz, 400V, 30-200kVA General, Ups Multi-Module Installation, Emergency power off connections UPS2, UPS1