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7.3.10
Using the UPS LOAD OFF Pushbutton or Command
A UPS Load Off is initiated by the
Load Off command on the UPS Control Command screen, or Load Off command on
the Bypass Control Command screen. The UPS
powering down the UPS and de-energizing the critical load.
The UPS (including Bypass) remains off until restarted.
To use the
1.
All power to the critical load is lost when the LOAD OFF is selected in the following step. You should use this
feature only when you want to de-energize the critical load.
2.
Do not attempt to restart the system after Load Off until the cause of the shutdown has been identified and
cleared.
3.
Power is present inside the UPS cabinet sections until the upstream input feeder circuit breaker is opened.
To use the
1.
2.
3.
4.
5.
EATON Powerware
®
9395 UPS (1000–1100 kVA) Installation and Operation Manual
pushbutton:
LOAD OFF
Press the
pushbutton.
LOAD OFF
The Load Off screen is displayed, providing a choice to proceed or abort the
shutdown.
To shut down the UPS, press
three seconds. To abort the shutdown, press
When LOAD OFF is selected and held for three seconds, the input, output,
battery, and bypass backfeed contactors open, and the power module is turned
off.
To restart the UPS after pressing the
in paragraph 7.3.1 on page 7−11 or 7.3.2 on page 7−12.
command:
LOAD OFF
Press the
pushbutton on the main menu bar. The System Status
CONTROLS
screen is displayed.
On the System Status screen, select either the
Press the
pushbutton on the System Status menu bar. The UPS or
CONTROLS
Bypass Control Command screen is displayed.
On the Control Command screen, select
Press the
pushbutton on the Command menu bar.
SELECT
The Load Off screen is displayed, providing a choice to proceed or abort the
shutdown.
UPS OPERATING INSTRUCTIONS
pushbutton from the main menu bar, the
LOAD OFF
controls the UPS output by
LOAD OFF
C A U T I O N
from the Load Off menu bar, and hold for
LOAD OFF
.
CANCEL
C A U T I O N
pushbutton, follow the procedure
LOAD OFF
W A R N I N G
or the
UPS
.
LOAD OFF
S
164201764 Rev 1 www.powerware.com
command.
BYPASS
7−17
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