UPS operations

In this section

 

Initiating a self-test ..................................................................................................................................

19

Silencing an audible alarm......................................................................................................................

19

Powering down the UPS..........................................................................................................................

19

Initiating a self-test

A self-test can be performed with equipment connected to the UPS output receptacles. To initiate a self-test, press and hold the Mute/Test button until the alarm beeps two times.

CAUTION: Do not unplug the UPS to test the batteries. This action removes safe electrical grounding and can introduce a damaging surge into the network connections.

The self-test lasts approximately 10 seconds as the UPS switches to battery power to test the load capacity and battery charge. During the self-test, the Power LED flashes, the Output Load Level LED illuminates, and the Battery Charge LED illuminates.

Silencing an audible alarm

Press the Mute/Test button.

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 (the Power LED is flashing green), the alarm silences after power is restored.

Audible alarm conditions

Alarm type

Condition

Audible alarm

Can alarm be

 

 

 

silenced?

 

 

 

 

Normal

UPS operating from utility power

No audible alarm

N/A

 

 

 

 

UPS on battery

UPS operating on battery power

On–four short beeps

Yes

 

 

 

 

Shutdown imminent

Batteries nearly out of power

On–continuous

Yes

 

 

 

 

Battery problem

Batteries must be recharged

On–intermittent beeps

Yes

 

 

 

 

Overload

UPS power capacity exceeded

On–continuous

Yes

 

 

 

 

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.

UPS operations 19