6.5 UPS Shutdown Procedures
6.5.1 Procedures for Completely Powering Down UPS
Complete UPS shutdown and load power-off should follow this procedure. All power switches, isolating switches, and
breakers are disconnected and then UPS no longer supplies power to load.
CA UT IO N : T h e fo llo win g pro cedu res will cu t o ff th e lo ad po wer, m ak in g th e lo ad co m pletely
po wer o ff.
1.
Click the INVERTER OFF key to stop the operation of the inverter (Refer to Operator Controls), then press the
EPO button to stop the operation of the rectifier, static switch, and battery.
2.
Disconnect the external battery switch.
3.
Disconnect the rectifier input switch Q1, bypass input switch Q2, and output switch Q5. At the moment, all the
internal power supply is off, and the TOUCHSCREEN does not display any more.
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 m ain ten an ce is bein g o perated.
2. W ait 10 m in u tes fo r th e in tern al DC bu s capacitan ce to disch arge. T h en th e UP S is co m pletely
sh u t do wn .
W A R N IN G ! Hazardo u s battery vo ltage
T h e battery term in als still h ave h azardo u s vo ltage after th e UP S is co m pletely sh u t do wn .
6.6 EPO Procedures
The EPO is designed to switch off the UPS in emergency conditions (that is, fire, flood, etc.). To carry out EPO, you just need
to press the EPO button, then the system will turn off the rectifier, inverter and stop powering the load immediately
(including the inverter and bypass), and the battery stops charging or discharging.
After EPO, if the input mains is present, the UPS's control circuit will remain active; however, the output will be turned off. To
remove all power from the UPS, first disconnect the external power switch of the UPS.
6 Single UPS Operation Introduction
119
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...
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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...
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