Battery Mode Shutdown; On Battery; Low Battery - Emerson GXT4-5000RT230 User Manual

Communication
5.3.2

Battery Mode Shutdown

Battery Mode Shutdown permits shutting down the UPS by turning Off the rectifier, inverter and static
switch so that there is no power to the load when the UPS is On Battery. The auxiliary power for the UPS
will still be active.
Battery Mode Shutdown can be performed locally or remotely:
• Local Battery Mode shutdown can be performed by shorting pins3 and 4.
• Remote Battery Mode Shutdown can be performed using a switch mounted in a remote location and
connected to pins 3 and 4.
NOTE
Remote Power Off will be performed by NO contact.
A current-limited source (+12 VDC, 50 mA) will be available from UPS.
The connection to the Liebert GXT4 for remote connection will be via terminal block connector.
Battery Mode Shutdown wiring must conform to all national, regional and local wiring codes and
laws.
This signal must last for 1.5 seconds or longer.
A battery shutdown signal will not cause an immediate shutdown. It will start a 2-minute shutdown
timer. This timer cannot be stopped once triggered. If the mains power returns during this
countdown, the Liebert GXT4 will still shut down and must remain shut down for 10 seconds.
Whether the UPS turns back On when the power is restored depends on the auto-restart setting.
5.3.3

On Battery

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.
5.3.4

Low Battery

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:
• Rated Voltage: 30 V (AC or DC)
• Rated Current: 300 mA
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Liebert GXT4 User Manual 42