Eaton 9390 UPS 100160 kVA, Installation And Operation Manual

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UPS Operating Instructions
10-4
EATON Powerware
®
9390 UPS (100–160 kVA) Installation and Operation Manual
S
164201604 Rev B powerware.com
3. The UPS is now operating in Bypass mode and the BYPASS status indicator is
illuminated.
The power module (PM) status indicates READY. The system is now on bypass and
the UPS power processor remains on.
W A R N I N G
Power is present inside the UPS cabinets.
10.1.5 Transfer 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 Controls
screen appears.
2. Press the NORMAL pushbutton on the System Controls menu bar.
The UPS transfers to Normal mode. If the power processor is not available, the
system remains on bypass and an alarm sounds.
3. The UPS is now operating in Normal mode, and the NORMAL status indicator is
illuminated.
The
power module (PM) stat
us indicates
ONLINE.
10.1.6 Transfer from Normal to Bypass Mode and Shut Down UPS
To transfer the critical load to Bypass mode and shut down the UPS, perform the following
procedure:
1. Transfer the critical load to bypass by performing the procedure in
paragraph 10.1.4.
2. Press the CONTROLS pushbutton on the main menu bar. The System Control
screen appears.
3. Press the pushbutton to display System Controls Screen 2.
4. Press the PM OFF pushbutton on the System Controls menu bar.
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.
W A R N I N G
Power is present inside the UPS cabinets.