Power-Off Procedures; Powering-Off The Ups For An Extended Time; Powering Off The Ups For A Short Time - HP PowerTrust A3589A Manual

Power-On/Power-Off Procedures

Power-Off Procedures

Power-Off Procedures

Powering-Off the UPS for an Extended Time

You should follow the procedure for powering off the UPS for an extended time when:
• A power failure has occurred or input AC power will be off for an extended time (more
than 24 hours).
Should input AC power fail, the UPS, if in Normal mode, will supply battery generated
AC output to the connected equipment for up to 15 minutes. During extended power
failures, the unit will warn you approximately three minutes before battery power is
depleted. The three-minute warning consists of a repeating sequence of three audible
beeps followed by approximately ten seconds of silence. If you hear the warning, you
should immediately prepare for a loss of AC power to the connected equipment. See
"Power Failure Operation" in Chapter 1.
When the input AC power is restored, the UPS will automatically recharge its batteries
as long as the UPS/BATTERY switch is in the
breaker is in the ON position.
The recharge can take up to 14.5 hours for a 90% recharge. The recharge time may be
considerably less if the batteries are not fully discharged.
• The UPS will be stored, shipped or otherwise be out of service.
NOTE The UPS batteries should be recharged periodically to maintain battery life.
Refer to "Shipping and Storage Requirements" in Chapter 2.
Use the following procedure to power off the UPS for an extended time:
1. Power down the equipment connected to the UPS.
2. Set the Output On/Output Off switch to
3. Set the UPS/BATTERY switch to
4. Set the MAIN and BYPASS INPUT breakers to the OFF position.
5. Set the Output breakers to the OFF position.
6. If the unit is to be stored or shipped, disconnect the battery cable.

Powering Off the UPS for a Short Time

If input AC power will be interrupted for a short time (less than 24 hours), you can use the
following procedure to power off the UPS to save the batteries from undue discharge,
which would result in a reduction in battery life and longer recharge times.
1. Power down the equipment connected to the UPS.
2. Set the Output On/Output Off switch to
4-4
position, and the MAIN INPUT
ENABLE
.
Output Off
.
DISABLE
.
Output Off
Chapter 4