Front Panel Controls; On/Standby Button - Compaq Pro UPS 500 Operation And Reference Manual

3-4 Compaq Pro UPS 500 Operation and Reference Guide

Front Panel Controls

ON/STANDBY Button

The ON/STANDBY button is a momentary switch that toggles between two
UPS operating modes (ON and STANDBY) when utility power is present. To
toggle back and forth between the two operating modes, press and hold the
ON/STANDBY button (
IMPORTANT: When the UPS is connected to utility power, all receptacles will immediately
be energized regardless of the UPS operating mode selected by the UPS ON/STANDBY
button.
NOTE: The ON/STANDBY button can also be used to turn the UPS OFF. The UPS battery
charger will be turned OFF. Power will be turned OFF at all UPS receptacles, and all
indicators will be turned OFF. To turn the UPS OFF, press and hold the ON/STANDBY
button for 2 seconds, until you hear a beep. The UPS will return to the ON mode once
utility power is restored.
1
Figure 3-2. Selecting the UPS operating mode
ON/STANDBY button


LINE STATUS indicator

) for 2 seconds, until you hear a beep.


ON BATTERY indicator

BATTERY LOW/REPLACE indicator