Battery Mode Shutdown; On Battery Mode; Low Battery - Emerson Liebert GXT4-700RT230 User Manual



Warning

When the Auto-Enable output option is selected and the UPS output is disabled using Pin1 and Pin2, the Liebert GXT4's output

can turn on automatically without warning if the Pin1 and Pin2 connection is changed.

Battery Mode Shutdown permits shutting down the UPS by turning off the rectifier, inverter and bypass so that there is

no power to the load when the UPS is On Battery.

Battery Mode Shutdown can be performed locally or remotely:

 Local Any Mode Shutdown can be performed by shorting Pin 3 and Pin 4.

 Remote Any Mode Shutdown can be achieved by a switch connected to Pin 3 and Pin 4 and mounted at a

remote location.

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Note

1. Remote Power off will be performed by NO contact.

2. A current-limited source (+12Vdc, 50mA) will be available from UPS.

3. The connection to the Liebert GXT4 for remote connection will be via terminal block connector.

4. Battery mode shutdown wiring will follow all national, regional and local wiring regulations .

5. This signal must last for 1.5 seconds or longer.

6. A battery shutdown signal will not cause an immediate shutdown. It will start a 2 minute shut down timer. This timer cannot be

stopped once triggered. If utility power returns during this countdown, the Liebert GXT4 will still shut down and must remain

shutdown for 10 seconds. Whether the UPS turns back on when the power is restored depends on the auto-restart setting.

On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery,

this dry contact will be closed.

Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery

and has reached the Low Battery Warning time selected in the configuration program, this dry contact will be closed.



Note

The rated values for the dry contacts for the On Battery and Low Battery signals are:

1. Rated voltage: 30V (AC or DC)

2. Rated current: 300mA

Liebert GXT4 UPS 700VA ~ 3000VA (230V) User Manual

Chapter 5 Communication

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