Vertiv APM 0250kMK16FN02000, Руководство пользователя

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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, 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 disch argin g. 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 .
6.5.2 Procedures for Completely Powering Down UPS while Maintaining Power to
Load
The following procedures are suitable for completely powering down the UPS and keeping the power supply to the load.
Refer to the procedures in Transfer from Normal Mode to Maintenance Mode.
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 (press the button at least 1 s), 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
114
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