UPS OPERATING INSTRUCTIONS
EATON
Powerware
®
9395 UPS (650–825 kVA) Installation and Operation Manual
S
164201725 Rev 2
www.powerware.com
7−18
C
A
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T
I
O
N
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.
6.
To shut down the UPS, press
LOAD OFF
from the Load Off menu bar, and hold for
three seconds. To abort the shutdown, press
CANCEL
.
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.
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O
N
Do not attempt to restart the system after the Load Off until the cause of the shutdown has been identified
and cleared.
7.
To restart the UPS after pressing the
LOAD OFF
pushbutton, follow the procedure
paragraph 7.3.1 on page 7−11 or 7.3.2 on page 7−12.
W
A
R
N
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G
Power is present inside the UPS cabinet sections until the upstream input feeder circuit breaker is opened.
7.3.11
Using the Remote Emergency Power−off Switch
A UPS emergency power−off is initiated by the
REPO
pushbutton switch. In an
emergency, you can use this switch to control the UPS output. The REPO switch
de-energizes the critical load and powers down the UPS immediately, without asking
for verification.
The UPS, including Bypass, remains off until restarted.
C
A
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T
I
O
N
All power to the critical load is lost when the REPO switch is activated in the following step. You should use
this feature only when you want to de-energize the critical load.
NOTE
The following instructions are for the Eaton−supplied REPO switch. If a customer−supplied REPO
switch is used, it may not activate in the same manner; refer to the operating instructions provided with the
switch.
To use the REPO switch:
1.
Firmly push the red pushbutton until it locks into place. The switch latches into
the activated state (see Figure 7-7).
The input, output, and bypass backfeed contactors open, the battery breaker or
disconnect is tripped, and the power module is turned off immediately, without
asking for verification.
