Ac Failure; Ups Outputs; Battery And Charging; Main Features - Ewent EW3940 Manual De Instrucciones

3.2 AC Failure

When AC fails, the battery will supply power to the inverter and then passes filter and
provide power for the equipment, ensuring the continuous power supply.

3.3 UPS outputs

The EW3940 UPS has 4 outputs:
•
At the left side two outputs for power failure (surge/spike) protection.
•
At the right side two outputs for power failure (surge/spike) protection with a
backup function when AC fails. The built-in battery will supply power for
continuous power supply for the equipment.

3.4 Battery and Charging:

•
When the UPS is connected to AC, the charger will charge the battery fully in
about 10 hours.
•
When the battery is used up, please turn off the UPS and charge the battery for a
least 10 hours when. Then turn on the UPS

4.0 Main Features

4.1 Unattended Operation

•
Please connect the UPS to AC and press the ON button on the front panel, the
UPS is turned on and the AC outputs stabilized voltage.
•
When AC fails, UPS will supply power to the equipment immediately. And when
the battery is used up, UPS will turn off automatically.
•
When AC comes back, UPS will turn on automatically.

4.2 Protection

•
Battery discharge protection: when the battery discharges and the UPS is in
inverter mode, the UPS will check and monitor the working status of the battery;
when the battery voltage drops to the limited lowest voltage, the inverter will turn
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