Using The Remote Emergency Power-Off Switch - Eaton 93E Operation Manual

UPS Operating Instructions

6.4.11 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-energises the critical load and powers down the UPS
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-energise the critical load.
To use the REPO switch:
1. The activated REPOswitch..
The input, output, battery, and optional bypass backfeed contactors open, and the power module is turned
off immediately, without asking for verification.
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.
3. Restart the UPS by following the procedure in paragraph 6.4.1 or 6.4.2.
Power is present inside the UPS cabinet after the upstream input feeder circuit breakers are
opened because of the installed external battery cabinet.
6-24 Eaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual
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.
CAUTION
CAUTION
WARNING