Eaton 93E UPS 15-80 kVA (380/400/415 V)
Installation and Operation Manual
© Eaton Corporation plc 2015. All rights reserved.
Revision: 001
Document ID: 614-01975-00
107 (133)
7.3.13
Using the remote emergency power-off switch
A UPS emergency power-off is initiated using the remote EPO push
button switch. In case of an emergency, you can use this switch to
control the UPS output. The remote EPO switch de-energizes the critical
load and powers down the UPS immediately, without asking for
verification.
The UPS, including bypass, remains off until restarted.
CAUTION
When the remote EPO switch is activated, all power to the critical load
is lost. Only use this feature when you want to de-energize the critical
load.
NOTE: The following instructions are for the Eaton-supplied remote
EPO switch. If a customer-supplied remote EPO switch is used, it may
not activate in the same manner. In such a case, refer to the operating
instructions provided with the switch.
To use the remote EPO switch:
1.
Firmly push the red push button until it locks into place.
The switch latches into the activated state.
The input, output and battery relays and the bypass backfeed
contactor open, and the power module is turned off immediately,
without asking for verification.
CAUTION
Do not attempt to restart the system after the remote EPO switch has
been activated until the cause of the shutdown has been identified and
cleared.
2.
To deactivate the remote EPO switch in preparation for restarting
the UPS, insert the supplied key and rotate it clockwise until the red
push button releases. To remove the key, rotate the key back to the
vertical position.
3.
Restart the UPS by following the procedure in Section 7.3.1 or
7.3.1.