Emerson Liebert GXT3 Series User Manual

Communication
25
5.2 USB Port Communication
The standard B-type USB port is used to connect the UPS and network server or other computer sys-
tem using Liebert MultiLink. Configuration program can be completed through the communication
port.
5.2.1 Configuration 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 modifi-
cation, 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
UPS Model
Factory
Default, VAC Output Voltage Option, VAC
GXT3-500RT120 - GXT3-3000RT120
GXT3-1000MT120
120 110, 115, 120 and 127
GXT3-3000RT208 208 208 / 220 / 230 / 240
!
WARNING
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.

Emerson Liebert GXT3 Series Specifications

General

Model	Liebert GXT3 Series
Frequency	50/60 Hz
Type	Online Double Conversion
Power Capacity	1kVA to 10kVA
Input Voltage	120V, 208V, 230V (depending on the specific model)
Output Voltage	120V, 208V, 230V (depending on the specific model)
Backup Time	Varies by model and load
Form Factor	Tower/Rackmount
Operating Temperature	0 to 40°C (32 to 104°F)
Humidity	0% to 95% (non-condensing)
Dimensions	Varies depending on the specific model
Weight	Varies by model
Battery Type	Valve-regulated lead acid (VRLA)