Owners manual
Table Of Contents
- Important Safety Precautions
- Save These Instructions
- Glossary of Symbols
- 1.0 Product Description
- 1.1 Features
- 1.2 Available Models
- 1.3 Appearance and Components
- 1.3.1 Front Panel and Controls
- 1.3.2 Rear Panel Features
- Figure 2 Rear panel components—Liebert GXT4 120V rack/tower, 500, 700, 1000VA model
- Figure 3 Rear panel components—Liebert GXT4 120V rack/tower, 1500VA model
- Figure 4 Rear panel components—Liebert GXT4 120V rack/tower, 2000VA model
- Figure 5 Rear panel components—Liebert GXT4 120V rack/tower, 3000VA model
- Figure 6 Rear panel components—Liebert GXT4 208V rack/tower, 3000VA model
- 1.4 Major Components
- 1.5 Operating Mode
- 2.0 Installation
- 3.0 Operation and Display Panel
- Figure 14 Operation and display panel
- 3.1 LED Indicators
- 3.2 Control Buttons
- 3.3 LCD
- 3.4 Menu Structure
- Figure 15 Menu structure
- 3.4.1 Startup Screen
- 3.4.2 Default Screen
- 3.4.3 Main Menu Screen
- 3.4.4 Prompt List
- 3.4.5 Warning List
- 3.4.6 Fault List
- 4.0 Operation
- 5.0 Communication
- 6.0 Maintenance
- 7.0 Troubleshooting
- 8.0 Battery Cabinet
- 9.0 Specifications
- Table 13 Specifications of GXT4-500RT120 - GXT4-700RT120 and GXT4-1000RT120 models
- Table 14 Specifications of GXT4-1500RT120 - GXT4-3000RT120 and GXT4-3000RT208 models
- Table 15 Battery cabinet specifications
- Table 16 Operating temperature parameters
- Table 17 Battery run times
- 9.1 Product Warranty Registration
- 9.2 Technical Support
Operation
Liebert
®
GXT4
™
32
4.0 OPERATION
This section describes checks to be made before starting the UPS, how to start the UPS, manual
battery test, manual bypass, shutting down the UPS and disconnecting mains power from the UPS.
4.1 Startup Checklist for the Liebert GXT4
Before starting the UPS, perform these checks:
___ 1. Check that the input plugs and loads are connected properly and reliably.
___ 2. Check that the battery cable is connected properly.
___ 3. Check that the communication cables are connected properly.
4.2 Starting the UPS
1. Plug the UPS into the appropriate AC outlet.
2. 3000VA models only: Close the input breaker on the rear of the unit.
3. The UPS will begin the startup sequence once AC power is present. The UPS will sound an
audible alarm, this is normal.
4. On the LCD, press either the Up or Down button once, then press the Enter button to turn On the
UPS. The UPS will sound the audible alarm again as the output receptacles are now being
powered by the internal bypass, then will sound one more time as the inverter powers the connected
equipment.
5. Check the LCD and LED indicators to ensure that the UPS is operating normally.
6. Check the load percentage on the default screen to ensure that the connected equipment is not
exceeding the UPS’s rated capacity.
The UPS is now providing conditioned and protected power to the connected equipment.
4.3 Manual Battery Test
To initiate a manual battery test, select MAIN MENU > CONTROL>BATT TEST>START.
• If the battery test results show FAILED, allow the UPS to recharge the batteries for 24 hours.
• Retest the batteries after 24 hours of charging.
• After the batteries have been retested, if the battery test still shows FAILED, contact your local
Emerson
®
representative or Emerson Network Power Channel Support.
4.4 Manual Bypass
To manually transfer the connected equipment to the internal bypass:
1. From the main menu select Control then press enter.
2. Select TURN ON & OFF and press Enter.
3. Select TURN UPS BYPASS and press Enter. The UPS will transfer the connected loads to the
internal bypass.
If the internal bypass is not available because of input power problems, pressing this button once will
be ignored. Bypass operation is indicated by an audible alarm and illuminated amber Bypass
indicator. (If other indicators are illuminated, refer to 7.0 - Troubleshooting.)
NOTE
The Liebert GXT4’s battery has been fully charged before delivery, but some charge will be lost
during storage and shipping. To ensure that the battery has adequate reserve power to protect
the connected load, charge the battery for three hours before putting the UPS into service.