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Troubleshooting
38
Powerware
®
9120 User's Guide S 05147426 A Uncontrolled Copy
ActionPossible CauseLCD Message or
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
expected backup time.
The battery may be fully
discharged because of:
S long-term storage
S frequent power outages
S end of battery life
Connect the UPS to a power source for 24 hours to charge
the battery. Perform a battery test (see Configuration
Mode" one page 17). If the battery test fails, see Replacing
Batteries" on page 29 to replace the battery.
During extended power outages, save your work and turn off
your equipment to conserve battery power.
The UPS operates
normally, but some or all
of the protected
The equipment is not connected
to the UPS.
Verify that the equipment is properly connected to the UPS.
of the protected
equipment is not on.
The output circuit breaker (if
applicable) is open.
Reset the circuit breaker (push the circuit breaker button or
reset the switch).
One of the load segments has
been turned off.
Reactivate the segment with the power management
software or through the front panel (see Configuration
Mode" one page 17).
On-Battery
1 beep every 5 seconds.
Utility power failure. The UPS is powering your equipment with its internal
battery. If this is an extended power outage, save your work
and turn off your equipment to conserve battery power.
Low Battery
2 beeps every 5 seconds.
The battery is running low. 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
3 beeps every 5 seconds.
The battery needs replacing. See Replacing Batteries" on page 29 to replace the battery.
Low Charge
3 beeps every 5 minutes.
The battery voltage is low. 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 (110ć125% for
1 minute or 126ć150% 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.