3. Operation
3.4 Operation on battery power
When the Normal AC source is not available, the load continues to be protected by the UPS.
Power is supplied by the battery.
Transfer to battery power
20 21
ESC
I O
LEDs (20), (21) are ON.
LEDs (31), (32), (34) are green.
The audio alarm beeps every 10 seconds.
The equipments are protected by the UPS and supplied by the battery.
The display indicates the battery remaining backup time.
31 32 34
Low battery warning
20 21
ESC
I O
LEDs (20), (21) are ON.
LEDs (31), (32), (34) are green.
The audio alarm beeps every 3 seconds.
The remaining battery power is low.
Shut down all applications on the connected equipment because automatic UPS shutdown is imminent.
31 32 34
End of backup time
22
I O
LED (22) is ON.
LED (34) is red.
The audio alarm beeps continuously.
The equipments are not powered.
The UPS displays "End of backup time Battery low".
34
3.5 Return on Normal AC source
After an outage, the UPS restarts automatically when Normal AC source is restored (unless this function has been disabled via UPS personalisation) and the load is supplied again.