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Table 10. Troubleshooting (cont.)

LCD Message or

Possible Cause

Action

Condition

 

 

Low Battery

The battery is running low.

2 minutes or less of battery power remains

2 beeps every 5 seconds.

 

(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 Section 7.0 "Replacing Batteries" to replace

3 beeps every 5 seconds.

 

the battery.

Low Charge

The battery voltage is low.

The UPS is charging the batteries and may not

3 beeps every 5 minutes.

 

deliver full run time. The alarm continues until

 

 

at least two minutes of run time is available.

Output Overload

Power requirements exceed

2 beeps per second.

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.

Battery Overload

The UPS is on battery, and

Shutdown is imminent (30 seconds). Save your

2 beeps per second.

the power requirements

work and turn off your equipment. Turn off and

 

exceed UPS capacity (130%

unplug or remove utility power from the UPS.

 

for 10 seconds or >130% for

Remove some of the equipment from the UPS.

 

1.5 seconds) or the load is

Restart the UPS. You may need to obtain a

 

defective.

larger capacity UPS.

Site Fault

Ground wire connection

Have a qualified electrician correct the wiring.

1 beep per second.

does not exist or the line

To disable this alarm, see Section 4.0

 

and neutral wires are

"Configuration"

 

reversed in the wall outlet.

 

Battery Test

The UPS is performing a

None. The UPS returns to Normal mode when

 

battery test.

it completes a successful battery test.

Over-Temperature

UPS internal temperature

Shutdown is imminent. Save your work and turn

Constant beep.

is too high.

off your equipment. Turn off the UPS. Clear

 

 

vents and remove any heat sources. Ensure the

 

 

airflow around the UPS is not restricted. Wait at

 

 

least 5 minutes and restart the UPS. If the

 

 

condition persists, contact your service

 

 

representative.

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Eaton Electrical 9120 manual LCD Message or Possible Cause Action Condition