Troubleshooting

LCD Message or

Possible Cause

Action

 

Condition

 

 

 

 

 

 

 

 

LCD panel is blank.

The UPS is in Standby mode.

Press and hold the

button until your hear the UPS beep

 

 

 

(approximately one second).

 

 

 

 

The LCD has failed.

Contact your service representative.

 

 

 

UPS does not provide the

The battery may be fully

Connect the UPS to a power source for 24 hours to charge

expected backup time.

discharged because of:

the battery. Perform a battery test (see •Configuration

 

￿

long-term storage

Mode" one page 17). If the battery test fails, see •Replacing

 

￿

frequent power outages

Batteries" on page 29 to replace the battery.

 

￿ end of battery life

During extended power outages, save your work and turn off

 

your equipment to conserve battery power.

 

 

 

 

 

 

The UPS operates

The equipment is not connected

Verify that the equipment is properly connected to the UPS.

normally, but some or all

to the UPS.

 

 

of the protected

 

 

 

 

The output circuit breaker (if

Reset the circuit breaker (push the circuit breaker button or

equipment is not on.

 

applicable) is open.

reset the switch).

 

 

 

 

 

One of the load segments has

Reactivate the segment with the power management

 

been turned off.

software or through the front panel (see •Configuration

 

 

 

Mode" one page 17).

 

 

 

 

On-Battery

Utility power failure.

The UPS is powering your equipment with its internal

1 beep every 5 seconds.

 

 

battery. If this is an extended power outage, save your work

 

 

 

and turn off your equipment to conserve battery power.

 

 

 

 

 

Low Battery

The battery is running low.

2 beeps every 5 seconds.

 

2 minutes or less of battery power remains (depending on load and battery charge).

Prepare for a shutdown. Save your work and turn off your equipment. The alarm cannot be silenced.

Replace Battery

The battery needs replacing.

See •Replacing Batteries" on page 29 to replace the battery.

3 beeps every 5 seconds.

 

 

 

 

 

Low Charge

The battery voltage is low.

3 beeps every 5 minutes.

 

The UPS is charging the batteries and may not deliver full run time. The alarm continues until at least two minutes of run time is available.

Output Overload

2 beeps per second.

Power requirements exceed UPS capacity (110￿125% for 1 minute or 126￿150% for 10 seconds) or the load is defective. The UPS switches to Bypass mode.

Remove some of the equipment from the UPS. The UPS automatically switches back to Normal mode when the capacity returns to an acceptable level. You may need to obtain a larger capacity UPS.

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Powerware® 9120 User's Guide ￿ 05147426 A Uncontrolled Copy