Eaton Powerware 9315 Operation Manual page 91

Chapter 12
Load Off is initiated by the covered, red LOAD OFF button on the Monitor Panel. This
button is protected by a clear plastic shield to prevent accidental activation. In an
emergency, you can press this button to instantaneously open the input breaker and
interrupt UPS output. The UPS is cut off from utility power, and your critical load is
de-energized. All power to the critical load is lost. The UPS (including Bypass) remains
locked off until you reset the LOAD OFF button.
To restart the UPS after pressing the LOAD OFF button, follow the procedure Resetting
the UPS System after Load Off" of this chapter before starting the UPS.
12.1 Using the LOAD OFF Button
9315 UPS (300–500 kVA) Operation Manual S 164201119 Rev F www.powerware.com
EATON Powerware
®
Using the LOAD OFF Button
All power to the critical load is lost when you press this button. You should use this feature
only in an emergency or when you want to de-energize the critical load.
NOTE The Remote Emergency Load Off option functions the same way as the LOAD
OFF button on the Monitor Panel.
1. Raise the clear plastic shield covering the red LOAD OFF button on the Monitor
Panel.
2. Press the LOAD OFF button.
The breaker and contactors open (you can hear them opening). The CB1 switch
trips, and the Load Off PUSH TO RESET button on the UPS Control Panel pops out.
The UPS system shuts down.
W A R N I N G
12−1