Transfer From Normal To Bypass Mode With Ups Shutdown - Powerware 9390 Installation & Operation Manual

UPS Operating Instructions
T
9.5 ransfer from Bypass to Normal Mode
To transfer the critical load to Normal mode, perform the following procedure:
1. Press the CONTROLS pushbutton on the Main menu bar. The System Control
2. Press the NORMAL pushbutton on the System Controls menu bar.
3. The UPS is now operating in the Normal mode, and the NORMAL status indicator

9.6 Transfer from Normal to Bypass Mode with UPS Shutdown

1. Transfer the critical load to bypass by performing procedure in paragraph 9.4.
2. Press the CONTROLS pushbutton on the Main menu bar. The System Control
3. Press the
4. Press the PM OFF pushbutton on the System Controls menu bar.
Power is present inside the UPS cabinets.
9-4
screen appears.
The UPS switches to Normal mode. If the power processor is not available, the
system remains on bypass and an alarm sounds.
illuminates.
The Power Module (PM) status indicates ONLINE.
screen appears.
pushbutton to display System Controls Screen 2.
The Power Module (PM) status indicates SHUTDOWN. The input and output
contactors open, the battery breaker or disconnect is tripped, and the Power
Module is turned off. The bypass source supplies the critical load.
Powerware 9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev A
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