Compaq R6000 Series User Manual

Page 69

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4-12 Compaq R6000 Series UPS Operation and Reference Guide

Compaq Confidential – Need to Know Required

Writer: Daniel E. Lyons Project: Compaq R6000 Series UPS Operation and Reference Guide Comments: Revised as per A. May

Part Number: 347223-022 File Name: e-ch4.doc Last Saved On: 3/24/99 1:44 PM

X Alarms

Battery Totally Discharged

UPS on Battery

When the UPS switches to battery power, it triggers an alarm. The left yellow
LED will light.

X Alarms

UPS on Battery

Load Power Off

When the UPS is no longer protecting its load devices and there is no utility
voltage powering the devices, the UPS will trigger an alarm.

X Alarms

Load Power Off

Battery Test Failed

Periodically, the Compaq UPS microprocessor initiates a brief discharge cycle
to check the charge level of the battery packs. If this test fails, the UPS will
trigger an alarm, indicating that battery replacement is imminent.

X Alarms

Battery Self-Test Failed

Site Wiring Fault

This alarm is triggered when either there is no ground connection between
utility power and the UPS, or the line and neutral connections between utility
power and the UPS are reversed. This is disabled for 200V and 208V.

X Alarms

Site Wiring Fault

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