Emerson Liebert GXT3 User Manual download pdf (Page 30)

Communication

5.3 Terminal Block Communication

The Terminal Block includes eight pins, as shown in Figure 20.

Figure 20 Terminal Block Communication pin layout

5.3.1 Any Mode Shutdown

The purpose of Any Mode Shutdown is to shut down the UPS output by turning Off the rectifier,

inverter and static switch so that there is no power to the loads.

Any Mode Shutdown can be operated locally or remotely:

• Local Any Mode Shutdown can be performed by shorting Pin 1 and Pin 2.

• Remote Any Mode Shutdown can be performed using a switch connected to Pin 1 and Pin 2 and

mounted at a remote location.

NOTE

Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown,

depending on the settings in the configuration program.

A current-limited source for this optocoupler (+12VDC, 50mA) will be available from the UPS.

The connection to the UPS for remote connection will be via terminal block connector.

Any Mode Shutdown wiring must conform to all national, regional and local wiring

regulations.

WARNING

When the Auto-Enable output option is selected and the UPS output is disabled using Pin 1

and Pin 2, the Liebert

GXT3

™

’s output can turn On automatically and without warning if

the Pin 1 and Pin 2 connection is changed.

Any Mode

Shut Down

Battery Mode

Shut Down

Battery Mode

Low Battery

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Emerson Liebert GXT3 User Manual Page 30