W A R N IN G !
1. If th e m ain ten an ce is requ ired, wait 10 m in u tes fo r th e in tern al DC bu s capacitan ce
disch argin g.
2. T h e parts o f UP S circu its also h ave h azardo u s vo ltage, th o u gh th e rectifier in pu t switch ,
bypass in pu t switch an d battery switch are disco n n ected. T h erefo re, th e UP S m ain ten an ce is
applicable to qu alified perso n n el o n ly.
8.3.3 Procedures for Isolating One UPS module from Parallel System
IM P O R T A N T ! T h ese pro cedu res sh all o n ly be carried o u t by service perso n n el o f Vertiv o r u n der th eir
gu idan ce.
W A R N IN G ! A fter iso latin g o n e UP S m o du le, wh en th e parallel system is n o t o verlo ad, th en
pro ceed with steps belo w.
The following procedures apply when one UPS module must be isolated from the parallel system for repair due to serious
fault:
1.
Pressing the EPO button on the GHMI stops the operation of rectifier, inverter, static switch and battery, but
this action will not affect other UPSs in parallel system to power the load normally.
2.
Disconnect the external power mains switch, rectifier input switch Q1, external power bypass switch, bypass
input switch Q2, output switch Q5, BCB and single module external output switch.
W A R N IN G !
1. P o st a label at th e A C in pu t distribu tio n (gen erally far away fro m th e UP S) to alert th at th e
UP S is u n der m ain ten an ce.
2. W ait 10 m in u tes fo r th e in tern al DC bu s capacitan ce disch argin g. T h en th e UP S is co m pletely
sh u t do wn .
8 Parallel System and LBS System
147
Vertiv™ Liebert® APM Plus User Manual
Summary of Contents for APM Plus 0500kMK16FN02000
Page 1: ...Vertiv Liebert APM Plus User Manual 50 500 kVA UPS...
Page 8: ...vi This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 34: ...2 Overview 26 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 45: ...Four switches 500 kVA 3 Mechanical Installation 37 Vertiv Liebert APM Plus User Manual...
Page 76: ...Figure 5 11 Customize the display 5 Touch Screen 68 Vertiv Liebert APM Plus User Manual...
Page 86: ...Figure 5 20 Enable module redundancy 5 Touch Screen 78 Vertiv Liebert APM Plus User Manual...
Page 91: ...Figure 5 24 Status Gauge setting options 5 Touch Screen 83 Vertiv Liebert APM Plus User Manual...
Page 92: ...5 Touch Screen 84 Vertiv Liebert APM Plus User Manual...
Page 94: ...5 Touch Screen 86 Vertiv Liebert APM Plus User Manual...
Page 95: ...Figure 5 26 Unit status Bypass details 5 Touch Screen 87 Vertiv Liebert APM Plus User Manual...
Page 96: ...Figure 5 27 Unit status Battery details 5 Touch Screen 88 Vertiv Liebert APM Plus User Manual...
Page 97: ...Figure 5 28 Unit status Load details 5 Touch Screen 89 Vertiv Liebert APM Plus User Manual...
Page 100: ...5 Touch Screen 92 Vertiv Liebert APM Plus User Manual...
Page 112: ...5 Touch Screen 104 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 184: ...12 Specifications 176 This page intentionally left blank Vertiv Liebert APM Plus User Manual...