UPS OPERATING INSTRUCTIONS
Power Xpert
9395 UPS (450–550 kVA) Installation and Operation Manual
164201701 Rev 3
www.eaton.com/powerquality
7-44
7.4.26
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 UPSs immediately, without asking
for verification.
The UPS, including Bypass, remains off until restarted.
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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 on all UPSs.
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Do not attempt to restart the system after the REPO until the cause of the shutdown has been identified and
cleared.
2.
To deactivate the REPO switch in preparation for restarting the UPS, insert the
supplied key and rotate clockwise until the red pushbutton releases (see
Figure 7‐7). To remove the key, rotate the key back to the vertical position.
3.
Restart the UPSs by following the procedure in paragraph 7.4.1 on page 7-26 or
7.4.2 on page 7-27.
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Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
