P-164000477 9395P750 kVA / 900 kVA and 1000 kVA / 1100 kVA 136
Revision 002 User’s and Installation Guide
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.
3. Select LOAD OFF. Command confirmation pop-up screen will show up asking confirmation for the
action. Select YES. The input, output, and bypass backfeed contactors open, the battery breaker or
disconnect is tripped, and all the UPMs are turned off.
4. If another UPS is to be shut down, proceed to that UPS and repeat Steps 1, 2 and 3.
Do not attempt to restart the system after Load Off until the cause of the shutdown has been
identified and cleared.
5. To restart the UPS after the LOAD OFF, follow the procedure in Section 7.5.1, Section 7.5.2 or
Section 7.5.15.
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is
opened and the MOB is opened.
7.5.22 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.
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.
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:
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