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3. Operation
3.3 Operation on battery power (following failure of AC input power)
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Transfer to battery power
The AC-power source is outside tolerances, LED 23 is ON, the buzzer
beeps three times.
The equipment connected to the UPS is supplied by the battery.
Threshold for the low-battery warning
The low-battery warning threshold can be set by the user, with the "UPS
Driver" software (see section 3.4).
LED 22 flashes.
The buzzer beeps every three seconds.
There is very little remaining battery backup time. Close all
applications because UPS automatic shutdown is imminent.
End of backup time
The buzzer sounds continuously.
Press button 17 to turn the buzzer OFF.
The equipment is no longer supplied with power.
Sleep mode
The UPS goes to sleep mode at the end of the battery backup time (LEDs 12 to 15 ON) until complete shutdown due to
tripping of the battery-protection function against deep discharge.
Return of AC input power:
If, in spite of the return of AC input power, the UPS does not restart, check that the automatic-restart function
(activated by return of AC input power) has not been disabled (see section 3.4).
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