MGE UPS Systems 2000 RT 2U, S 1250 RT 2U, S 1250 RT 2U, S 1750 RT 2U, 2000 RT 2U, S 2500 RT 2U, S 3000 RT 2U, S 3000 RT 3U, S EXB 1250/1750 RT 2U, S EXB 2500/3000 RT 2U, S EXB 2500/3000 RT 3U, S 1750 RT 2U, S 2500 RT 2U, S 3000 RT 2U, S 3000 RT 3U, S EXB 1250, S EXB 2500 3.3 Return of AC input power, 3.4 UPS shutdown, 3.5 UPS remote control functions

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3. Operation

3.3 Return of AC input power

Following an outage, the UPS restarts automatically when AC input power returns (unless the restart function has been

disabled via UPS personalisation) and the load is again supplied.

3.4 UPS shutdown

3.5 UPS remote control functions

Evolution offers a choice between two remote control functions.

◗ RPO: Remote Power Off allow a remote contact to be used to disconnect all the equipment connected to the UPS.

Restarting the UPS requires manual intervention.

◗ ROO: Remote ON/OFF allows remote action of button (24) to shut down the UPS.

These functions are obtained by opening a contact connected between the appropriate pins of connector (5) on the rear panel

of the UPS (see figures below).

◗ All the LEDs go OFF.

◗ The audio alarms stops.

The UPS is completely shut down.

Press button (24) for approximately 2 seconds.

The devices connected to the UPS are no longer supplied.

1 - Check that the UPS is OFF and disconnected from the AC input source.

2 - Remove connector (5) after unscrewing the screws.

3 - Connect a normally closed volt-free contact (60 V DC / 30 V AC max., 20 mA max., 0.75 mm2 cable cross-section) between

the two pins of connector (5) (see diagram).

MGE UPS Systems 3.3 Return of AC input power, 3.4 UPS shutdown, 3.5 UPS remote control functions