Emerson 208V, GXT3 user manual USB Port Communication, Configuration Program, Output voltage option

Communication

5.2USB Port Communication

The standard B-type USB port is used to connect the UPS and network server or other computer system using Liebert® MultiLink®. Configuration program can be accessed through the communication port.

5.2.1Configuration Program

Accessing the Configuration Program via USB is a new feature of the Liebert GXT3™. For most users, the factory default settings will be adequate. This section illustrates the features available for modification, as well as the factory default setting.

The USB configuration program allows these features of the Liebert GXT3 to be changed:

•Enable/Disable Auto-Restart

•Select frequency converter operation with a fixed output frequency of 50Hz or 60Hz, bypass dis- abled

•Set the Low Battery Warning alarm time from 2 to 30 minutes

•Enable/Disable the Auto-Battery test

•Enable/Disable Auto-Restart after removing Remote Shutdown

•Set the wiring mode of Remote Shutdown

•Set the Auto-Enable output

•Set the Auto-Battery test to 7, 14, 21 or 28 days

•Select the number of external battery cabinets connected to the UPS to adjust the remaining run time calculated by Liebert software products

•Select one of multiple output voltages to match various voltages, see Table 6.

Table 6	Output voltage option
		Factory
	UPS Model	Default, VAC	Output Voltage Option, VAC
GXT3-500RT120 - GXT3-3000RT120		120	110, 115, 120 and 127
GXT3-1000MT120
GXT3-3000RT208		208	208 / 220 / 230 / 240

NOTICE

The output voltage settings cannot be changed while the UPS is On and powering connected loads.

NOTE

For all 120V models, when the output voltage is programmed for 110VAC, the UPS will be automatically derated as follows (refer to 9.0 - Specifications for VA and watt ratings):

•500VA - 1000VA: derated to 95% of both the VA and Watt ratings

•1500VA - 3000VA: derated to 90% of both the VA and Watt ratings

NOTE

• This program is compatible with UPS models beginning with ‘GXT3’, as in ‘GXT3- 3000RT120.’ It is not compatible with earlier versions of the Liebert GXT UPS.

•A computer running Windows 2000®, XP® or Vista® is required to set up and run the configuration program.

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