Precharge Failure Led; Audible Alarm - HP PowerTrust A3589A Manual

Caution LED is flashing, changing the position of the Service Bypass switch may interrupt
AC output to the load. Therefore, do not change the position of the Service Bypass switch
when the Caution LED is blinking unless there is no load or the load is not running.
The following table lists the possible reasons for caution LED to be blinking.
The Output On/Output Off switch is set to
The AC input voltage or frequency is outside the UPS
specifications.
The batteries are discharged.
The UPS was turned off by the operating system (OS).
The Electronics Unit is defective.
If the light is not blinking, it is safe to use the Service Bypass switch.

Precharge Failure LED

When flashing continuously, this red LED indicates that the voltage on the main inverter
has not precharged properly and that the Battery Precharge Shorting Plate must not be
installed.

Audible Alarm

The audible alarm is located inside the unit and is used in conjunction with the
light and the Silence Alarm/Test switch. A variety of conditions activate the audible alarm
as explained in the cases on the following pages. Refer to the cases for meaning, cause, and
possible actions.
The audible alarm has four different patterns of increasing urgency:
Isolated beep
One-Beep alarm
Three-Beep alarm
Chapter 6
Cause
a single beep sounds each time the Silence Alarm/Test switch is
pushed. (See "Silence Alarm/Test" for more information.)
one beep every 10 seconds. This means the battery is supplying
power.
three beeps every 10 seconds. The actions associated with this
alarm may include preparing for shut down of the protected
equipment. (The three-beep alarm takes precedence over a
one-beep alarm.)
. Set the switch to
Output Off
Resolve the AC line
problem.
Charge the batteries (~14
hours).
Have the OS turn the UPS
on.
Replace the Electronics
Unit.
Troubleshooting
Alarm Indicators
Action
.
Output On
Attention
6-7