Any Mode Shutdown; Battery Mode Shutdown - Emerson Liebert GXT4-5000RT208 User Manual

Communication
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 the pins in terminal 3 for the UPS-models
ending in RT208, and pins1 and 2 for the GXT4-6000RTL630 model.
• Remote Any Mode Shutdown can be performed using a switch mounted at a remote location and
connected to the pins in terminal 3 for the UPS-models ending in RT208, and pins1 and 2 for the
GXT4-6000RTL630 model.
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 (+12 VDC, 50 mA) 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 Any Mode
Shutdown, the Liebert GXT4's output can turn On automatically and without warning if the
connection is changed.
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 the pins in terminal 4 for the UPS-models
ending in RT208, and pins3 and 4 for the GXT4-6000RTL630 model.
• Remote Battery Mode Shutdown can be performed using a switch mounted in a remote location and
connected to the pins in terminal 4 for the UPS-models ending in RT208, and pins 3 and 4 for the
GXT4-6000RTL630 model.
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.
® ™
Liebert GXT4 User Manual 50