Emerson GXT2U Manuel D’Utilisation

1. Pin 6 of the 9-pin communication connector is used for “Any-Mode Shut-

down” of the UPS output. This control input may be used in special applica-

tions to disable the UPS output power—both Inverter and Bypass.

2. The Options tab allows the behavior of the Any-Mode Shutdown feature to 

be modified. When the program opens, or the REFRESH button is pressed, 

the UPS setting is read by the configuration program and displayed.

If version 1.6 (or later) is used with an earlier Liebert GXT2U model (with an 

earlier UPS firmware version), the Any-Mode Shutdown features cannot be 

changed.
If the configuration program is used with an earlier UPS model (with an 

earlier UPS firmware version) that does not support the modification of these 

settings, the Options tab will display a reminder of the factory default 

settings. These cannot be changed.

Note that when this option is selected and the UPS output is 

disabled using Pin 6, the UPS output can turn on automatically 

and without warning if the Pin 6 connection is changed.

DO NOT CHANGE THIS OPTION from the factory default 

setting unless you are ready to install a normally-closed 

connection between Pins 5 & 6. This connection must be 

maintained to use the UPS or to use the configuration program 

again, including the ability to change the UPS setting back to the 

default setting using the configuration program via a serial 

communication link.