Troubleshooting 95
On
every 3 seconds
("Overload
condition" on page
98)
On
On—1 beep
every 3 seconds
Overtemperature
("Overtemperature
condition" on page
98)
On
On—1 beep
every 3 seconds
Site Wiring Fault
("Site wiring
condition" on page
99)
For the location of individual LEDs, see "UPS front panel LED indicators (on page 9)."
Silencing an audible alarm
To silence an alarm, press any button on the front panel display to silence the alarm. If the alarm status
changes, the alarm beeps again, overriding the previous alarm silencing.
IMPORTANT:
• Although the audible alarm silences, the condition that caused the alarm to sound may still
exist.
• If a utility power failure caused the alarm, the alarm silences after power is restored.
For information about audible alarm conditions, see "LED and audible alarm troubleshooting (on page 94)."
Abnormal output voltage at startup
Possible cause: The system is not configured as parallel.
Action:
1. Verify the Parallel UPS Card wiring connections. See "Configuring the Parallel UPS Card (on page
41)."
2. Be sure that the line cord is installed properly.
3. Power down the UPS where the alarm is indicated.
o Standalone UPS configuration—See "Powering down the standalone UPS (on page 72)."
o Individual UPS in a parallel configuration—See "Powering down an individual paralleled UPS (on
page 72)."
o Parallel UPS configuration—See "Powering down the parallel system (on page 73)."
4. Power up the UPS.
o Standalone UPS configuration—See "Powering up the standalone UPS (on page 25)."
o Parallel UPS configuration—See "Powering up the parallel system (on page 39)."
5. Select the TURN SYSTEM ON option through the front panel of the UPS that was powered down.
Battery breaker
Possible cause: The UPS does not recognize the internal batteries.
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