UPS OPERATING INSTRUCTIONS
Eaton 9395 Plus 1 UPS (225–275 kVA) Installation and Operation Manual
S
164201710 Rev 2
www.eaton.com\powerquality
7-40
All of the UPSs transfer to Bypass mode and the critical load is immediately
supplied by the bypass source. If the bypass source is not available, the power
module remains on and an alarm sounds.
The
BYPASS
status indicator is illuminated. The Bypass status indicates
ON
. The
UPM status indicates
READY
. The power module remains on.
W
A
R
N
I
N
G
Power is present inside the UPS cabinet.
7.4.18
Transfer from Bypass to Online Mode
To transfer the critical load to Online mode:
1.
If not already closed, close the battery breaker.
2.
On any UPS, press the
CONTROLS
pushbutton on the main menu bar. The System
Status screen is displayed.
3.
On the System Status screen, select the
UPS
command.
4.
Press the
CONTROLS
pushbutton on the System Status menu bar. The UPS
Control Command screen is displayed.
5.
On the UPS Control Command screen, select
GO TO ONLINE
.
6.
Press the
SELECT
pushbutton on the UPS Command menu bar.
All of the UPSs transfer to Online mode. If the power module is not available, the
system remains on bypass and an alarm sounds.
The Online status indicator is illuminated. The UPS status indicates
ONLINE
. The
UPM status indicates
ONLINE
.
7.4.19
Transfer from Online to Bypass Mode and Shut Down UPMs
To transfer the critical load to Bypass mode and shut down all UPMs:
1.
Transfer the critical load to bypass by performing the procedure in
paragraph 7.4.17.
2.
Press the
CONTROLS
pushbutton on the main menu bar. The System Status
screen is displayed.
3.
On the System Status screen, select the
UPM
command. The UPS Control
Command screen screen is displayed.
4.
On the UPS Control Command screen, select the
UPM 1
command.
5.
Press the
CONTROLS
pushbutton on the UPS Control Command menu bar. The
UPM 1 Control Command screen is displayed.
6.
On the UPM 1 Control Command screen, select
UPM OFF
.
7.
Press the
SELECT
pushbutton on the UPM 1 Command menu bar.
The UPM status indicates
READY
.
The input, output, and battery contactors
open, and the power module remains on.
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