Liebert gxt2u user manual Auto-Enable Output Pin 6 Logic, Pins 5 & 6 ANY-MODE Shutdown

Communications

7.3PINS 5 & 6 - ANY-MODE SHUTDOWN

1.Pin 6 of the 9-pin communication connector is used for “Any-Mode Shutdown” of the UPS output. This control input may be used in special applications 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.

7.3.1Auto-Enable Output

WARNING

! 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.

7.3.2Pin 6 Logic

WARNING

! 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.

If version 1.6 (or later) is used with an earlier Liebert GXT2U model (with an earlier UPS firmware version), the Any-Mode Shutdown fea- tures 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 modifica- tion of these settings, the Options tab will display a reminder of the factory default settings. These cannot be changed.

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