Communication
Liebert
®
GXT4
™
User Manual
40
5.2 USB Port Communication
The standard B-type USB port is used to connect the UPS and network server or other computer system
using Liebert MultiLink
®
.
A standard B-type USB port is provided to allow connection to a computer or network server. The USB port
can be used to communicate with the Liebert GXT4 configuration program (see section
for details) or Liebert MultiLink (refer to
for description)
that is provided on the CD that is included with the UPS.
5.2.1
Configuration Program
The configuration program is on the Liebert GXT4 CD and can be used instead of making configuration
setting changes from the LCD panel. The configuration program communicates to a computer running a
Microsoft
®
Windows
®
operating system via the included USB cable.
For most users, the factory default settings are adequate. This section give a brief overview of the features
and parameters that are available for modification, as well as the factory default settings. Should any
changes be necessary, refer to the Configuration Program User Manual that is located on the included CD
for further details.
The configuration program allows these features of the Liebert GXT4 to be changed:
• Change and set the display language
• Enable/Disable Auto-Restart (default is Enable)
• Select frequency converter operation with a fixed output frequency of 50Hz or 60Hz, bypass disabled
(default is Auto-Select with bypass enabled)
• Set the Low Battery Warning alarm time from 2 to 30 minutes (default is 2 minutes)
• Enable/Disable the Auto-Battery test (default is Enable)
• Enable/Disable Auto-Restart after removing Remote shutdown (default is Disable)
• Set the wiring mode of Remote shutdown (default is normally open)
• Set the Auto-Enable output after remote shutdown (default is Disable)
• Set the Auto-Battery test to 8, 12, 16, 20, or 26 weeks (default is 8 weeks)
• Select the number of external battery cabinets connected to the UPS to adjust the remaining run time
calculated by Emerson
®
software products (default is zero)
• Select one of multiple output voltages to match various voltages (see
NOTICE
The output voltage settings cannot be changed while the UPS is On and powering connected
loads.
Table 5-1
Output voltage option
UPS Model
FactoryDefault Setting
Output Voltage Option
All models
230 VAC
200V, 208V, 220V, 230V, 240V
NOTE
• This program is compatible with UPS models beginning with ‘GXT4,’ as in ‘GXT4-3000RT230.’
It is not compatible with earlier versions of the Liebert GXT UPS.
• A computer running Microsoft
®
Windows 2000
®
, Windows XP
®
, Windows Vista
®
, Windows 7 or
Windows 8 is required to set up and run the configuration program.
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