Single Ups Shutdown Using Upm Shutdown - Eaton Power Xpert Plus 1 Installation And Operation Manual

7.
8.
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
NOTE If the UPS contains an input breaker (CB1), DO NOT open the breaker unless no input feeder breaker
is installed.
9.
7.4.21

Single UPS Shutdown using UPM Shutdown

NOTE To shut down a single UPS, MOBs with dual auxiliary contacts must be installed and connected
according to the procedure in paragraph 5.2 on page 5-4.
To shut down a single UPS:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. On the UPM 1 Control Command screen, select
t
Power Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual
Perform the LOAD OFF procedure in paragraph 7.4.25 on the UPS being shut
down.
The input, output, battery, and bypass backfeed contactors open, and the power
module is turned off on the UPS being shut down.
Logic power remains on.
Verify the battery breaker or disconnect for the UPS being shut down is open. If
not, open the breaker.
Open the input and bypass feeder circuit breakers for the UPS being shut down.
The UPS is now completely shut down.
External Communications Failure alarm is active on remaining online UPSs. This
is an expected event and will clear upon UPS restart.
Open the MOB for the UPS being shut down.
On the UPS being shut down, press the
bar. The System Status screen is displayed.
On the System Status screen, select the
Press the pushbutton on the System Status menu bar. The Bypass
CONTROLS
Control Command screen is displayed.
On the Bypass Control Command screen, select
Press the pushbutton on the Bypass Command menu bar.
SELECT
The UPS being shut down transfer to Bypass mode.
status indicator is illuminated. The Bypass status indicates ON. The
The
BYPASS
UPM status indicates READY. The power module remains on.
On the System Status screen, select the
Command screen is displayed.
On the UPS Control Command screen, select the
Press the pushbutton on the UPS Control Command menu bar.
CONTROLS
UPS OPERATING INSTRUCTIONS
W A R N I N G
pushbutton on the main menu
CONTROLS
command.
BYPASS
GO TO BYPASS
command. The UPS Control
UPM
UPM 1
UPM OFF
S
www.eaton.com/powerquality
164201701 Rev 4
.
command.
.
7-39