Emerson Liebert APS Installationshandbuch PDF herunterladen (Seite 28)

20 Chapter 3 Operating Procedures

Liebert APM Modular UPS User & Installation Manual

Chapter 3 Operating Procedures

This chapter provides detailed operating procedures of the UPS.

All control keys and LED indication mentioned in these procedures are identified in

Chapter 4 Operator Control And

Display Panel

. Audible alarm may sound at various points during these procedures. It can be canceled at any time by

pressing the SILENCE ON/OFF key.

Warning: hazardous mains and battery voltage present behind covers

1. No user-serviceable parts are located behind covers that require a tool for their removal.

2. Only qualified service personnel are authorised to remove such covers.

3.1 Power Switches

As shown in Figure 3-1, opening the UPS front door reveals the power switches, including the input switch, output

switch, maintenance bypass switch (locked) and output distribution switches.

Output distribution switchesOutput distribution switches

Input switch

Output switch

Maintenance bypass

switch (locked)

Figure 3-1 Positions of power switches

3.2 UPS Start-Up Procedures

Before startup, the UPS must be fully installed and commissioned, and the external input breaker must be closed.

Once those general conditions are met, the UPS may be started.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 48 49

Keine Kommentare

Emerson Liebert APS Installationshandbuch Seite 28