Eaton Power Xpert 9395P - Using the Remote Emergency Power-Off Switch; Using Mechanical Bypass Switch

P-164000476 9395P 500kVA / 600 kVA 112
Revision 002 User’s and Installation Guide
CAUTION
Do not attempt to restart the system after Load Off until the cause of the shutdown has been
identified and cleared.
4. To restart the UPS after selecting the LOAD OFF, follow the procedure in Section 7.4.1 or Section
7.4.2..
7.4.19 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.
CAUTION
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 Corporation-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. Press the REPO pushbutton switch.
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.
CAUTION
Do not attempt to restart the system after Load Off until the cause of the shutdown has been
identified and cleared.
2. To restart the UPS after using the REPO pushbutton, reset the REPO switch and then follow the
procedure in Section 7.4.1 or Section 7.4.2.
7.4.20 Using Mechanical Bypass Switch
The operation of the integral MBS is allowed for a trained person only who is familiar with the UPS
behaviour and functions. The full UPS wiring diagram with a MBS switch is presented in the installation
part of the manual.