HP (Hewlett-Packard) HP R1500 G3 UPS Power Supply User Manual


 
UPS operations 21
IMPORTANT:
Although the audible alarm silences, the condition that caused the alarm to sound might still
exist.
If a utility power failure caused the alarm (or the General Alarm LED illuminates yellow), the
alarm silences after power is restored.
For information about audible alarm conditions, see "LED and audible alarm troubleshooting (on page 31)."
Powering down the UPS
1. Shut down all connected load devices.
2. Press the Power On/Standby button. Power to the output receptacles ceases.
3. Disconnect the UPS from utility power.
4. Wait at least 60 seconds for the UPS internal circuitry to discharge.