Liebert® GXT4™ UPS 120V/208V 500VA-3000VA

User Manual

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 TABLE OF CONTENTS
IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.0 PRODUCT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Appearance and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.1 Front Panel and Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.2 Rear Panel Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.5 Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.1 Mains Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.2 Manual Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.3 Battery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5.4 Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5.5 Frequency Converter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5.6 Active ECO Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Preparation for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.1 Installation Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1 Tower Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.2 Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5.1 Connecting to AC Mains and Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5.2 Connecting Battery Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6 Connecting Communication Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.1 Connecting USB Communication Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.2 Installing the Optional Liebert IntelliSlot® Card and Communication Cables . . . . . . . . . . . 15
3.0 OPERATION AND DISPLAY PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3 LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.1 Startup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.2 Default Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.3 Main Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.4 Prompt List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.5 Warning List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.6 Fault List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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 4.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
4.1 Startup Checklist for the Liebert GXT4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2 Starting the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3 Manual Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4 Manual Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5 Shut Down the Liebert GXT4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6 Disconnecting Input Power from the Liebert GXT4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.0 COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1 Liebert IntelliSlot Communication Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1.1 Liebert MultiLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2 USB Port Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2.1 Configuration Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3 RS-232 Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4 Terminal Block Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4.1 Any Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4.2 Battery Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.4.3 On Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.4.4 Low Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1 Replacing the Internal Battery Pack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1.1 Battery Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.2 Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.4 Checking UPS Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.5 Checking UPS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1 UPS Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1.1 Indicator and LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1.2 Audible Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8.0 BATTERY CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.0 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
9.1 Product Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.2 Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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 FIGURES
Figure 1 Liebert GXT4 rack/tower models—front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2 Rear panel components—Liebert GXT4 120V rack/tower, 500, 700, 1000VA model . . . . . . . . . . . 5
Figure 3 Rear panel components—Liebert GXT4 120V rack/tower, 1500VA model . . . . . . . . . . . . . . . . . . . 6
Figure 4 Rear panel components—Liebert GXT4 120V rack/tower, 2000VA model . . . . . . . . . . . . . . . . . . . 6
Figure 5 Rear panel components—Liebert GXT4 120V rack/tower, 3000VA model . . . . . . . . . . . . . . . . . . . 7
Figure 6 Rear panel components—Liebert GXT4 208V rack/tower, 3000VA model . . . . . . . . . . . . . . . . . . . 7
Figure 7 Operating principle diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 8 Support bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9 Remove the front plastic bezel cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10 Rotate the operation and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11 Tower installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 12 Cable strain relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 13 Battery cable attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 14 Operation and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 15 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 16 Startup screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 17 Startup screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 18 Starting and Start Successful screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 19 Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 20 Main Menu screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 21 Status screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 22 CONFIGURATION screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 23 UPS screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 24 Battery screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 25 ECO Mode screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 26 Outlet1 screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 27 Outlet Control screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 28 Outlet Setting screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 29 Outlet2 setting screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 30 LCD screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 31 Language screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 32 Color screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 33 Factory Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 34 Control screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 35 Turn UPS On or Off screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 36 Alarm Control screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 37 Batt Test screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 38 Log screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 39 Clear Log screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 40 About screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 41 Network screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 42 Terminal Block Communication pin layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 43 Removing the front bezel cover and battery door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 44 Disconnecting the battery plug and battery receptacle (front view) . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 45 Pull out the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 46 Battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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 TABLES
Table 1 UPS models, power ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 2 Input circuit breaker specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 3 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 4 Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 5 System prompts and meanings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 6 Warning list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 7 Fault list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 8 Output voltage option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 9 Replacement internal battery pack model number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 10 Description of the displayed fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 11 Audible alarm description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 12 Troubleshooting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 13 Specifications of GXT4-500RT120 - GXT4-700RT120 and GXT4-1000RT120 models . . . . . . . . . 44
Table 14 Specifications of GXT4-1500RT120 - GXT4-3000RT120 and GXT4-3000RT208 models . . . . . . . 45
Table 15 Operating temperature parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 16 Battery cabinet specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 17 Battery run times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

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 IMPORTANT SAFETY PRECAUTIONS

! WARNING
Observe all cautions and warnings in this manual. Failure to do so may result in serious
injury or death.
Refer all UPS and battery service to properly trained and qualified service personnel. Do not
attempt to service this product yourself.
Opening or removing the cover may expose you to lethal voltages within this unit even when
it is apparently not operating and the input wiring is disconnected from the electrical source.
Never work alone.

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that must be followed during the installation and
maintenance of the UPS and batteries. Read this manual thoroughly before attempting to install or
operate this UPS.

UPS Safety Notes

This UPS contains no user-serviceable parts except the internal battery pack. The Off/Bypass
push button does not electrically isolate internal parts. Under no circumstances attempt to gain
internal access other than to replace the batteries due to risk of electric shock or burn. Do not
continue to use the UPS if the front panel indications are not in accordance with these operating
instructions or if the UPS performance alters in use. Refer all faults to your local dealer, Emerson
Network Power representative or Emerson Network Power Channel Support.
This UPS has an internal battery, and the output receptacles of the UPS may carry live voltage even
if the UPS is not connected to utility input power.
Before moving or rewiring this UPS, disconnect utility input power and the battery and make sure
that the UPS is completely shut down. Otherwise, the output terminal may carry live voltage,
presenting an electric shock hazard.
To ensure human safety and normal UPS operation, the UPS must be properly grounded before use.
When the UPS is connected to an IT power distribution system, a short-circuit protection device must
be installed on the neutral line.
Install and use the Liebert GXT4 in the following environments:
• Temperature: 32°F - 104°F (0°C - 40°C), relative humidity: 0% ~ 95% non-condensing
• Out of direct sunlight
• Away from heat sources
• Stable surface, not subject to vibrations or shocks
• Away from dust and other particulates
• Away from corrosive substances, salts and flammable gases
Keep the air inlet and outlet of this UPS unobstructed. Poor ventilation will increase the internal
temperature of the UPS and can adversely affect the UPS and its batteries.
Keep liquid and foreign objects away from the UPS.
In case of fire, use a dry chemical fire extinguisher to put out the fire. Using a fluid fire extinguisher
may cause electric shock.
This UPS is not intended for use with life support and other designated critical devices. Maximum
load must not exceed that shown on the UPS rating label. This UPS is designed for data processing
equipment. If uncertain, consult your local dealer or Emerson representative.
This UPS is not for use in a computer room as defined in the standard for the Protection of Electronic
Computer/Data Processing Equipment, ANSI/NFPA 75.
The Liebert GXT4-3000RT120™ was tested under 30A branch circuit in accordance with the National
Electrical Code, ANSI/NFPA 70. To reduce the risk of fire, connect only to a circuit provided with 30A
maximum branch overcurrent protection.

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 The Liebert GXT4-3000RT208 was tested under 20A branch circuit in accordance with the National
Electrical Code, ANSI/NFPA 70. To reduce the risk of fire, connect only to a circuit provided with 20A
maximum branch overcurrent protection.

Battery Safety

! CAUTION
Do not dispose of batteries in a fire. The batteries may explode.
Do not open or mutilate the batteries. Released electrolyte is toxic and is harmful to skin and
eyes.
Dispose of used batteries according to the instructions.

! CAUTION
A battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed when working on batteries:
• Remove watches, rings and other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves and boots.
• Do not lay tools or metal parts on top of batteries.
• Disconnect charging source prior to connecting or disconnecting battery terminals.
• Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove
the source of the ground. Contact with any part of a grounded battery can result in electri-
cal shock. The likelihood of such shock will be reduced if grounds are removed during
installation and maintenance (applicable to a UPS and a remote battery supply not having
a grounded supply circuit).

ELECTROMAGNETIC COMPATIBILITY—The Liebert GXT4 complies with the limits for a

CLASS A DIGITAL DEVICE, PURSUANT TO Part 15 of FCC rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Operating this device in a residential area is likely to cause harmful interference that users must
correct at their own expense.
The Liebert GXT4 series complies with the requirements of EMC Directive 2004/108/EC and the
published technical standards. Continued compliance requires installation in accordance with these
instructions and use of accessories approved by Emerson.

Information for the Protection of the Environment

UPS Servicing: UPS makes use of components dangerous for the environment (electronic cards,
electronic components). The components removed must be taken to specialized collection and disposal
centers.

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 GLOSSARY OF SYMBOLS

Risk of electrical shock

! Indicates caution followed by important instructions

AC input

AC output

i Requests the user to consult the manual

- +
Indicates the unit contains a valve-regulated lead acid battery
PbH2SO4

R Recycle

DC voltage

Equipment grounding conductor

Bonded to ground

AC voltage

WEEE

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 Product Description

1.0 PRODUCT DESCRIPTION

The Liebert GXT4 is a compact, online uninterruptible power system (UPS) that continuously
conditions and regulates its output voltage. The Liebert GXT4 is designed to supply microcomputers
and other sensitive equipment with clean sine wave input power.
Upon generation, AC power is clean and stable. However, during transmission and distribution it is
subject to voltage sags, spikes and complete failure that may interrupt computer operations, cause
data loss and damage equipment.
The Liebert GXT4 protects equipment from these disturbances. The Liebert GXT4 continuously
charges its batteries from utility power, enabling it to supply power to connected loads, even when
utility power fails.
This sections describes the UPS, its features, models, appearance and components, operating
principles and operating mode.

1.1 Features
• Intelligent battery management to extend the battery life
• LCD for user-friendly operation and local monitoring and configuration of operational parameters
• Controllable outlet groups
• Flexible network management with Liebert MultiLink™ software
• Fan fault self-inspection and automated diagnostic function
• Intelligent fan operation, automatically changing rotation speed depending on system
requirements, to decrease power consumption and noise
• Input circuit breaker to ease recovery from overloads
• Safety approval from UL and cUL
• Communication options: USB port, Liebert IntelliSlot® port and terminal block communication
• Dry contacts for remote monitoring
• Input power factor greater than 0.99
• Output voltage selection function

1.2 Available Models

Eight UPS models are available.
Table 1 UPS models, power ratings
Model Nominal Power Rating
GXT4-500RT120 500VA/450W
GXT4-700RT120 700VA/630W
GXT4-1000RT120 1000VA/900W
GXT4-1500RT120 1500VA/1350W
GXT4-2000RT120 2000VA/1800W
GXT4-3000RT120 3000VA/2700W
GXT4-3000RT208 3000VA/2700W

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 Product Description

1.3 Appearance and Components

1.3.1 Front Panel and Controls
The Liebert GXT4 rack/tower models in various power ratings have the same general appearance,
controls and features (see Figure 1). The various rack/tower and minitower models differ largely in
the type of receptacles each has.

Figure 1 Liebert GXT4 rack/tower models—front view

Ventilation Slots
Operation and
Display Panel

1.3.2 Rear Panel Features

The rear panel of the Liebert GXT4 has these features:
• Liebert IntelliSlot® Port
• USB port
• Input Circuit Breaker
• Input Receptacle
• General Output Receptacles
• Programmable Output Receptacles
• Cable Strain Relief Attachment Hole
• External Battery Connector
• Cooling Fan
• RS-232 port
• Terminal Block Communication
• Output Circuit Breakers (only on 3000VA models)

Figure 2 Rear panel components—Liebert GXT4 120V rack/tower, 500, 700, 1000VA model
Liebert General Output Programmable
IntelliSlot Strain Output
Relief Receptacle Input Circuit
Port Receptacle Breaker
USB Port Attachment

Terminal Block
RS232 Cooling External Programmable Output
Communication
Port Fan Battery Receptacles #1
Connector Input Power Plug
and Cable

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 Product Description

Figure 3 Rear panel components—Liebert GXT4 120V rack/tower, 1500VA model

Input Power Plug and

Cable
Liebert Programmable
IntelliSlot USB Input Circuit General Output Output
Port Port Breaker Receptacle Receptacle #2

External
Terminal Block RS232 Strain Programmable Output
Cooling Battery
Communication Port Relief Receptacle #1
Fan Connector
Attachment

Figure 4 Rear panel components—Liebert GXT4 120V rack/tower, 2000VA model

Input Power Plug and

Cable
Liebert Programmable
IntelliSlot USB Input Circuit General Output Output
Port Port Breaker Receptacle Receptacle #2

External
Terminal Block RS232 Strain Programmable Output
Cooling Battery
Communication Port Relief Receptacle #1
Fan Connector
Attachment

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 Product Description

Figure 5 Rear panel components—Liebert GXT4 120V rack/tower, 3000VA model

Input Power Plug and

Cable
Liebert
IntelliSlot Programmable
Port Input Circuit General Output Output
USB Port
Breaker Receptacle Receptacle #2

Output
Terminal Block RS232 Cooling Programmable Output
External Circuit
Communication Port Fan Receptacle #1
Battery Breaker
Connector Output

Strain Relief
Attachment

Figure 6 Rear panel components—Liebert GXT4 208V rack/tower, 3000VA model

Input Power Plug

and Cable, L6-20P

Liebert Output Programmable

IntelliSlot Circuit Output
Port USB Port Input Circuit Breakers Receptacle 1
Breaker L6-15R

External
Terminal Block Battery
Communication Cooling Connector Programmable
Fan Output
Receptacle 2
L6-15R

Non-Programmable
Output Receptacle 2
L6-20R

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 Product Description

1.4 Major Components

The operating principle of the UPS is illustrated in Figure 7.

Figure 7 Operating principle diagram

Dynamic Programmable
Bypass Outlet
L Group 1
L TVSS Rectifier/ EMI/RFI
EMI/RFI Inverter Programmable
N/L2* PFC Output N/L2*
Input Filter Outlet
G
G Filter Group 2

General
DC-DC Outlet
Converter Group
General
Outlet
(3000 VA Only)
Battery
Battery
Charger

* NOTE: ONLY the GXT4-3000 RT208 model (208V) requires L 2 (L6-20P).

All other models covered in this manual are 120 V L-N wired

The UPS is composed of utility input, TVSS and EMI/RFI filters, rectifier/PFC, inverter, battery
charger, DC-to-DC converter, battery, dynamic bypass and UPS output.

Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters

The Liebert GXT4 has surge protection and filters that protect the connected load from power surges,
electromagnetic interference (EMI) and radio frequency interference (RFI). These features can
minimize any surges or interference present in the utility power. The filters also prevent surges or
interference generated by the UPS from adversely affecting devices connected on the same branch as
the UPS.

Rectifier/Power Factor Correction (PFC) Circuit

In normal operation, the Liebert GXT4’s rectifier/power factor correction (PFC) circuit converts utility
power to regulated DC power for use by the inverter while ensuring that the wave shape of the input
current used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives:
• Efficient power use by the UPS
• Reduced reflected harmonics
This results in cleaner power being available to other devices in the building not being protected by
the Liebert GXT4.

Inverter
In normal operation, the Liebert GXT4’s inverter utilizes the DC output of the PFC to produce
precise, regulated sine wave AC power. When utility power fails, the inverter receives DC power from
the DC-to-DC Converter. In either operation mode, the UPS inverter is online, continuously
generating clean, precise, regulated AC output power.

Battery Charger
The battery charger utilizes energy from the utility power and precisely regulates it to continuously
float charge the batteries. The batteries are being charged whenever the Liebert GXT4 is plugged in,
even when the UPS is not turned On.

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 Product Description

DC-to-DC Converter
The DC-to-DC converter raises the DC voltage from the battery to the optimum operating voltage for
the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage,
thus increasing reliability.

Battery
The Liebert GXT4 uses valve-regulated, nonspillable, lead acid batteries. To maintain battery design
life, operate the Liebert GXT4 in an ambient temperature of 32°F to 77°F (0°C to 25°C).
Optional external battery cabinets are available to extend battery run times.

Dynamic Bypass
The Liebert GXT4 provides an alternate path for utility power to the connected loads in the unlikely
event of a UPS malfunction. Should the Liebert GXT4 have an overload, overtemperature or UPS
failure condition, the UPS automatically transfers the connected loads to bypass.

NOTE
The bypass power path does not protect the connected loads from disturbances on the utility.

1.5 Operating Mode

The UPS operation modes include the following: Mains (AC) Mode, Bypass Mode, Battery Mode,
Battery Recharge Mode, Active ECO Mode and Frequency Converter Mode.
Refer to 9.0 - Specifications for details about the operating mode indicators and control buttons.
1.5.1 Mains Mode
During Mains Mode, the mains provides input power to the Liebert GXT4. The filters, PFC circuit
and inverter process this power to provide high-quality sine wave power to connected loads. The UPS
maintains the batteries in a fully charged state.

1.5.2 Manual Bypass Mode

Manual Bypass Mode occurs when the unit is manually placed in internal bypass by navigating the
LCD display menu to select 3 Control > 1 Turn On & Off > Turn UPS Bypass. Bypass operation is
indicated by an audible alarm and illuminated amber bypass indicator. (If other indicators are
illuminated, refer to 7.0 - Troubleshooting). During Bypass Mode, mains power bypasses the
inverter and provides energy to the connected load.

NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the UPS in Bypass Mode will result in loss of output power to the connected load.

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 Product Description

1.5.3 Battery Mode

The Liebert GXT4 enters Battery Mode when mains power fails or is outside acceptable limits. The
battery system supplies power through the DC-to-DC converter to the inverter to generate clean AC
power for the connected loads.
When the Liebert GXT4 enters Battery Mode, the UPS sounds a half-second beep at 10-second
intervals. When approximately 2 minutes of run time remains, the beeps sound every 5 seconds to
warn that the battery is getting low (this Low Battery Warning is user-configurable).
In Battery Mode, the battery indicator will illuminate and the LCD will show the prompt utility power
not available.
Press either the Up or Down button once, then press the Enter button to clear the prompt and silence
the audible alarm. Once the alarm prompt has been acknowledged, the screen showing the estimated
battery run time and battery capacity will be visible. Refer to 7.0 - Troubleshooting.
For approximate battery run times, refer to Table 17.

NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the Liebert GXT4 when it is in Battery Mode will result in loss of output power to
the connected load.
If the UPS is turned Off manually, it must be manually restarted after mains power returns.
If the UPS is turned Off by a communication signal or because the batteries are depleted, it
will operate as set in the configuration program for Auto-Restart (Refer to 5.2.1 -
Configuration Program).

1.5.4 Battery Recharge Mode

Once mains power is applied to the Liebert GXT4, the Battery Charger begins charging the batteries.

1.5.5 Frequency Converter Mode

All models of the Liebert GXT4 are capable of frequency conversion. Frequency Conversion Mode can
be selected using the configuration program. Allowable frequency operating modes include:
• Auto Sensing - 50Hz or 60Hz – Bypass Enabled
• Auto Sensing - 50Hz or 60Hz – Bypass Disabled
• Frequency Converter - 50Hz – Bypass Disabled
• Frequency Converter - 60Hz – Bypass Disabled

NOTE
The default for all models of the Liebert GXT4 is “Auto Sensing - 50Hz or 60Hz – Bypass
Enabled.”

! CAUTION
Risk of electric shock. Can cause injury or death.
Never touch the AC input receptacle while the UPS is operating. Voltage may still be present
even when the AC input indicator is Off.

1.5.6 Active ECO Mode

All Liebert GXT4 models can operate in Active ECO Mode. In this mode, the connected equipment is
powered through the bypass path to increase efficiency, reducing the electrical costs.
Active ECO mode keeps the rectifier and inverter operating, allowing the inverter to remain
synchronized to bypass. This synchronization allows the transfer of the connected equipment to UPS
inverter power almost seamlessly if bypass power falls outside the user-set limits. Once bypass power
returns within the acceptable parameters, the UPS will return to Active ECO Mode operation.
The default setting is Active ECO Mode Off.

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 Installation

2.0 INSTALLATION

2.1 Unpacking and Inspection

Unpack the UPS and conduct the following checks:
• Inspect the UPS for shipping damage. If any shipping damage is found, report it to the carrier and
your local dealer or your Emerson representative immediately.
• Check the accessories included in packaging list. If there is any discrepancy, contact your local
dealer or your Emerson representative immediately.

2.2 What’s Included

• Terminal Block Communication Terminals
• Compact Disk with:
• Liebert MultiLink® Shutdown Software
• Configuration Program
• User Manual
• USB Cable—one, 1.2m (3.9 ft.) long
• RS-232 Cable—one, 2m (6-1/2 ft) long
• Cable Strain Relief—two pieces
• Rack mounting hardware, including screws, handles and mounting rail kit (not included with
model numbers ending with an “E”)
• Plastic tower stand sets—two (four pieces)
• Warnings, Safety Instructions booklet and WEEE recycling sheet (ISO 14001 compliance))

NOTE
The GXT4 External Battery Cabinet shipping package includes one battery cabinet, two spacers
for tower configuration and one DC power cable and rack mounting hardware, including
screws, handles and mounting rail kit (not included with model numbers ending with an “E”).

2.3 Preparation for Installation

2.3.1 Installation Environment
• Install the UPS indoors in a controlled environment, where it cannot be accidentally turned Off.
The installation environment should meet the specifications listed in 9.0 - Specifications).
• Place it in an area of unrestricted airflow around the unit, away from water, flammable liquids,
gases, corrosives, and conductive contaminants. Avoid direct sunlight.

NOTE
Operating the Liebert GXT4 in temperatures above 77°F (25°C) reduces battery life.

Installation Clearances
Maintain at least 4 inches (100mm) clearance in the front and rear of the Liebert GXT4. Do not
obstruct the air inlets on the front panel and rear panel of the UPS; blocking the air inlets reduces
ventilation and heat dissipation, shortening the service life of the Liebert GXT4.

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 Installation

2.4 Mechanical Installation

The Liebert GXT4 may be installed as a tower or in a rack, depending on space and use
considerations. The Liebert GXT4 may be used alone, as a single UPS, or with up to four battery
cabinets.

NOTE
When installing the UPS or making input and output connections, comply with all relevant
safety codes and standards

2.4.1 Tower Installation

To install the Liebert GXT4 as a tower:
1. Take out support bases from the accessories (see Figure 8).

Figure 8 Support bases

Spacers
Connectors

Support Bases

2. If optional Liebert external battery cabinets will be connected to the Liebert GXT4, take out the
spacers shipped with the battery cabinet.
3. Connect the spacers and the support bases as shown in Figure 8. Each Liebert GXT4 needs two
assembled support bases, one in the front and one in the rear.
4. Adjust the direction of the operation and display panel and logo on the Liebert GXT4.
a. Remove the front plastic bezel cover as shown in Figure 9.

Figure 9 Remove the front plastic bezel cover

Front Bezel Cover

b. Pull the operation and display panel gently, rotate it 90 degrees clockwise and snap it back
into position, as shown in Figure 10.

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 Installation

Figure 10 Rotate the operation and display panel

Rotate Operation and

Display Panel
90 degrees clockwise

c.Pull the logo on the front plastic bezel cover gently, rotate it 90 degrees clockwise and snap it
back into position. The rotated front plastic bezel cover is shown in Figure 11.
d. Replace the front plastic bezel cover on the Liebert GXT4. At this point, the UPS operation
and display panel and logo have been rotated 90 degrees clockwise, which provides upright
viewing for users.
5. Place the Liebert GXT4 and any battery cabinets on the support bases. Each Liebert GXT4 needs
two support assemblies, as shown in Figure 11.

Figure 11 Tower installation

Liebert GXT4 UPS and
Liebert GXT4 UPS External Battery Cabinet
Operation and
Display Panel
Rotated for
Tower Operation

Support
Bases

Support
Bases

2.4.2 Rack Installation

The Liebert GXT4 UPS and external battery cabinets (EBC), when installed in a rack enclosure, must
be supported by a shelf or rack-mount rails. The Liebert GXT4 UPS and EBC units ship with all
required hardware to allow rack-mount installation (not included with model numbers that end in
“E”). Because different rack-mount options install differently, refer to the installation instructions
provided with the rack mount kit being used.

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 Installation

2.5 Cable Connection

The Liebert GXT4 rear panel has an input cable and plug, output receptacles and output cable(s)
(Output cables are on GXT4-3000 models only). Refer to 1.3.2 - Rear Panel Features for details.
The battery cables are supplied with the battery cabinet.

2.5.1 Connecting to AC Mains and Loads

NOTE
Ensure that all the loads are turned Off.
Prepare an input power supply that is properly protected by a circuit breaker in accordance
with national and local electrical codes. The wall receptacle must be grounded.
Emerson recommends installing an upstream circuit breaker of the same series as the Liebert
GXT4’s input circuit breaker.
The specification of input circuit breaker on the rear panel of UPS is given in Table 2..
Table 2 Input circuit breaker specification
Rated Circuit
Model Breaker
GXT4-500RT120 8A
GXT4-700RT120 10A
GXT4-1000RT120 10A
GXT4-1500RT120 15A
GXT4-2000RT120 20A
GXT4-3000RT120 30A
GXT4-3000RT208 20A

Liebert GXT4 models 700-1500VA and 2000VA have three groups of outlets as shown in Figure 2.
One group is always On; the other two groups may be controlled with either programmed responses or
over an SNMP network. The 3000VA GXT4 UPS has four groups of outlets: two groups are not
controlled (always On), and two groups may be controlled with either programmed responses or over
an SNMP network.
Verify that the equipment is plugged into the appropriate outlets if any outlets will be controlled with
these features.
1. Plug equipment into the appropriate output receptacles on the rear of the Liebert GXT4.
NOTE
1. Do not overload any output receptacle.
2. Output cable length should not exceed 10m (32.8 ft).
2. Plug the input receptacle of the Liebert GXT4 into the input power connection.
3. Install the two cable strain relief fixtures to secure either the input or output cables to prevent
accidental disconnection.
a. Insert one end into the provided holes on the rear of the unit.
b. Place the power cord(s) inside the loop.
c. Tighten the loop around the cables.

Figure 12 Cable strain relief

Hold the Insert into the
cable provided hole to
secure the line
buckle

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 Installation

2.5.2 Connecting Battery Cables

1. Switch Off the input breaker of the battery cabinet.
2. Take out the battery cable included with the battery cabinet.
3. Connect one end of the battery cable to the external battery connector on the rear panel of the
UPS, and connect the other end to any battery port on the rear panel of the battery cabinet.
4. Switch On the battery breaker on the rear of the external battery cabinet.
5. Use the Configuration Program included with the UPS to specify the number of external battery
cabinets connected to the Liebert GXT4. See Table 17 for approximate battery run times.

Figure 13 Battery cable attachment

Battery Cable

Liebert
GXT4

External
Battery
Cabinet

2.6 Connecting Communication Cables

Communication cable connection includes: USB and cables for option cards.

2.6.1 Connecting USB Communication Cables

1. Take the USB communication cables out of the accessories bag.
2. Insert one end of the USB communication cable to the USB port on the rear panel of the Liebert
GXT4 (see Figures 2 and 1.4).
3. Insert the other end of the USB communication cable to the USB port of the computer.

2.6.2 Installing the Optional Liebert IntelliSlot® Card and Communication Cables
1. Remove the protective cover of the Liebert IntelliSlot port on the Liebert GXT4 and set it aside.
2. Insert the Liebert IntelliSlot card into the Liebert IntelliSlot port and secure it with screws.
3. To connect any cable associated with a Liebert IntelliSlot card, refer to the user manual provided
with the card.
To configure and use the Liebert IntelliSlot communication card, refer to the card’s user manual.
Manuals for the various Liebert IntelliSlot cards are available at Liebert’s Web site:
www.liebert.com

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 Operation and Display Panel

3.0 OPERATION AND DISPLAY PANEL

This chapter describes the Liebert GXT4 controls, particularly the operation and display panel on the
front of the Liebert GXT4. The panel has four control buttons, seven LED indicators and a liquid
crystal display (LCD), as shown in Figure 14.

Figure 14 Operation and display panel

Inverter Indicator Battery Indicator

Fault Bypass Indicator

Indicator

Programmable Outlet 1 Indicator

LCD
Programmable Outlet 2 Indicator
Panel
ECO Mode Indicator

ESC ENTER Button

Button

UP Button DOWN Button

3.1 LED Indicators

The seven LED indicators on the front of the operation and display panel are:
• Inverter
• Battery
• Bypass
• Programmable Outlet1
• Programmable Outlet2
• ECO Mode
• Fault
Figure 14 shows the indicators’ locations; their descriptions and functions are shown in Table 3.
Table 3 LED indicators
LED Indicators LED Color Description
Inverter Green On when the inverter is supplying power
On when the load is supplied by the mains through
Bypass Amber
automatic/manual bypass
Battery Amber On when the load is supplied by the battery
Fault Red On when an error has occurred within the UPS
Programmable Outlet1 Green On when programmable Outlet1 is On
Programmable Outlet2 Green On when programmable Outlet2 is On
ECO Mode Green On when the UPS is in ECO Mode

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 Operation and Display Panel

3.2 Control Buttons

The four control buttons on the front of the operation and display panel are:
• ESC
• Up
• Down
• Enter
Figure 14 shows the buttons’ locations; their descriptions and functions are shown in Table 4.
Table 4 Control buttons
Control Buttons Description
Pressing this button returns to the previous menu or aborts any change in the input data field
ESC Button
before confirming.
Pressing this button can move the cursor up or increase the value displayed in the input data
Up Button
field. When a menu is displayed on several screens, pressing the button can scroll up.
Pressing this button can move the cursor down or decrease the value displayed in the input
Down Button
data field. When a menu is displayed on several screens, pressing the button can scroll down.
Enter Button Pressing this button can enter the next level menu or confirm the parameter setting value.

3.3 LCD
The LCD panel shows the UPS status and enables changes to the UPS settings by assisting in
navigating through the Liebert GXT4’s menu (see 3.4 - Menu Structure).

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 Operation and Display Panel

3.4 Menu Structure

The menu structure of the LCD is shown in Figure 15.

Figure 15 Menu structure

Audible Alarm
Output
Startup on Bypass
Load

Enable Auto Shutdown

Status Input
UPS

Battery Enable Auto Restart

Start
Windows
Time Since Startup Frequency Selection

System Output Level Selection

Status Configuration

Battery Cabinets
Turn UPS Turn UPS On
On/Off Turn UPS Off Low Battery Time Warning
BATT

Batt Test Interval

Main Alarm 1. Audible Alarm On
Control
Menu Control 2. Audible Alarm Off Batt Replace Time

1. Start Enable /Disable

Batt Test 2. Cancel
3. Batt Test Result
Voltage
Tolerance
ECO Mode
View Log
Frequency
Log Tolerance

Clear Log Requalification

Time

Turn On
Outlet 1
About PN/SN/Firmware Version Control Turn Off
Reboot

Setting Settings as Outlet1 (only Outlet2)

Address: MAC Outlet 2 Turn On Delay
Turn Off When UPS On Battery
Address: IPV4 and On Overload
Turn Off When UPS On Battery
Network Factory for Some Time
Address: IPV6STATIC Turn On When Power Returns for
Default
Some Time
Address: IPV6AUTO Turn Off When Runtime Less
Than Some Time
Turn Off When Batt Capacity
Address: IPV6LINK Less Than Some Time

1 English
Language
2 French
LCD

Color

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 Operation and Display Panel

3.4.1 Startup Screen

When the Liebert GXT4 is starting up, it initiates a self-test and displays the screen shown in
Figure 16 for about 10 seconds.

Figure 16 Startup screen

EMERSON
Network Power

After about 10 seconds, the LCD shows one of the On screens in Figure 17; the screen shown depends
on whether input power is available.

Figure 17 Startup screens

AC NOT AVAILABLE
TURN ON UPS START ON BATTERY?
YES NO YES NO
O/P: 0V HZ 0.0A O/P: 0V 0HZ 0.0A
I/P : 120 V 60HZ 0.0A I/P : 120V 60HZ 0.0A
BATT: 100 % 320 MINS BATT: 100% 320MINS
LOAD: 0% LOAD: 0%
Input Power is Available Input Power is not Available

To turn On the UPS, press either the Up or Down button to select YES and press the Enter button.
The UPS will start up, the LCD will display UPS STARTING and then START SUCCESSFUL after
the UPS is turned On, as shown in Figure 18.

Figure 18 Starting and Start Successful screens

UPS STARTING START SUCCESSFUL

O/P: 0V 0HZ 0.0A O/P: 120V 60HZ 4.6A

I/P : 120V 60HZ 0.0A I/P : 120V 60HZ 5.0A
BATT: 100% 320MINS BATT: 100% 15MINS
LOAD: 0% LOAD: 40%

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 Operation and Display Panel

3.4.2 Default Screen

Press any button in the START SUCCESSFUL screen to enter the default interface, shown in
Figure 19.

Figure 19 Default screen

Values shown will vary

GXT4-UPS 3KVA according to installation
and configuration.
O/P: 120V 60HZ 11.7A
I /P: 120V 60HZ 13.1A
BATT: 100 % 3MINS
LOAD: 100%

In the default screen, the LCD shows the UPS model, output parameters, input parameters, battery
capacity with run time estimate and load percentage. The UPS operation mode (online /inverter,
ECO, Battery or Bypass) will be indicated by the LED indicators.
If no control button (ESC, Up, Down, Enter) is pressed for 2 minutes, the LCD will enter the screen
saver mode (backlight turns off). It will remain off until a control button is pressed.

3.4.3 Main Menu Screen

Press the Enter button in the default screen to enter the MAIN MENU screen, as shown in
Figure 20.

Figure 20 Main Menu screen

1 STATUS
2 CONFIGURATION
3 CONTROL
4 LOG
5 ABOUT
6 NETWORK

To select a submenu, press the Up or Down button to move the cursor to the required item, then press
the Enter button to enter its submenu or set its parameter.

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 Operation and Display Panel

STATUS Screen
In the MAIN MENU screen, select STATUS to enter the Status Screen, displaying OUTPUT, LOAD,
INPUT, BATTERY and TIME SINCE STARTUP, as shown in Figure 21.

Figure 21 Status screens

OUTPUT LOAD INPUT

VOLTAGE : 120V CAP : 90% VOLT : 120V
FREQUENCY : 60HZ WATT : 1620W FREQ : 60 HZ
CURRENT : 17.6A VA : 1800VA CURR : 18.6A
POWER : 2112 KWH POWER : 97KWH

BATTERY
TIME SINCE STARTUP
CAPACITY : 90%
RUNTIME : 100 MINS 05D 15H 30M
VOLTAGE : 80V

CONFIGURATION Screen
Select MAIN MENU > CONFIGURATION to enter the Configuration menu. This menu has seven
submenus, as shown in Figure 22.

Figure 22 CONFIGURATION screen

1. UPS
2. BATTERY
3. ECO MODE
4. OUTLET 1
5. OUTLET2
6. LCD
7. FACTORY DEFAULT

In the CONFIGURATION screen, press the Up or Down button to move the cursor to the required
item, then press the Enter button to enter a submenu or set its parameters.

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 Operation and Display Panel

UPS Screen
Select MAIN MENU > CONFIGURATION > UPS to enter the UPS screen. This menu has six
screens, as shown in Figure 23.

Figure 23 UPS screens

AUDIBLE ALARM STARTUP ON BYPASS GUARANTEE SHUTDOWN

OFF NO NO

ENABLE AUTO RESTART FREQUENCY SELECTION VOLTAGE SELECTION

YES AUTO - BYPASS ENABLE 230

Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.

Battery Screen
Select MAIN MENU > CONFIGURATION > BATTERY to enter the BATTERY screen. This menu
has four screens, as shown in Figure 24.

Figure 24 Battery screen

EXT BATT CABINET LOW BATTERY TIME

0 CABINETS 2 MINS

BATT TEST INTERVAL BATT REPLACE TIME

8 WEEKS 2014 Y 1M 1D

Press the Up or Down button to increase or decrease the value of the settings, and press the Enter
button to confirm it.

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 Operation and Display Panel

ECO Mode Screens

Select MAIN MENU > CONFIGURATION > ECO MODE to enter the ECO MODE screens, as shown
in Figure 25.

Figure 25 ECO Mode screen

ECO MODE VOLTAGE TOLERANCE

ON 10%

FREQUENCY TOLERANCE REQUALIFICATION TIME

3 Hz 5 MINS

Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.

Outlet1 Screen
Select MAIN MENU > 2 CONFIGURATION > 4 OUTLET1 to enter the OUTLET1 screen. This menu
has two submenus, as shown in Figure 26.

Figure 26 Outlet1 screen

OUTLET1

1 OUTLET CONTROL
2 OUTLET SETTING

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 Operation and Display Panel

Select 1 OUTLET CONTROL and press the Enter button to enter the OUTLET CONTROL screen, as
shown in Figure 27.

Figure 27 Outlet Control screen

OUTLET CONTROL OUTLET CONTROL

TURN OFF TURN ON

REBOOT

Outlet Control is On Outlet Control is Off

Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
Select 2 Outlet Setting and press the Enter button to enter the OUTLET SETTING screen, as shown
in Figure 28.

Figure 28 Outlet Setting screen

TURN OFF WHEN UPS ON

TURN OFF WHEN UPS
BATTERY FOR
TURN ON DELAY ON OVERLOAD AND ON
OFF
BATTERY
TURN ON WHEN POWER
0 MINS RETURNS:
NO
0 MINS

TURN OFF WHEN TURN OFF WHEN BATT

RUNTIME LESS THAN CAPACITY LESS THAN
OFF OFF
TURN ON WHEN POWER TURN ON WHEN POWER
RETURNS: RETURNS:
0 MINS 0 MINS

Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.

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 Operation and Display Panel

Outlet2 Screen
The Outlet2 screens are the same as the Outlet1 screens. The same settings are available as on the
Outlet1 screen. If the Outlet2 group will have the same settings as the Outlet1 group, the Liebert
GXT4 offers a programming shortcut, as shown in Figure 29. When configuring the Outlet2 group,
the select YES and press the Enter button to apply the Outlet1 settings to the Outlet2 screen.

Figure 29 Outlet2 setting screen

APPLY THE SAME

SETTINGS AS OUTLET1

YES NO

LCD screen
Select Main Menu -> 2 CONFIGURATION -> 6 LCD to enter the LCD screen. This menu has two
submenus, LANGUAGE and COLOR, as shown in Figure 30.

Figure 30 LCD screen

1 LANGUAGE
2 COLOR

Select 1 LANGUAGE and press the Enter button to enter the LANGUAGE screen, as shown in
Figure 31.
The Liebert GXT4 is capable of supporting multiple languages. For the list of supported languages
and instructions on how to upload them, refer to the Configuration Program user manual on the
included CD.

Figure 31 Language screen

1 English
2

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 Operation and Display Panel

Select ‘2 COLOR’ and press the Enter button to enter the COLOR screen, as shown in Figure 32.

Figure 32 Color screen

EMERSON
EMERSON
EMERSON
EMERSON

FACTORY DEFAULT screen

Select MAIN MENU -> 2 CONFIGURATION -> 7 FACTORY DEFAULT to enter the FACTORY
DEFAULT screen, as shown in Figure 33.

Figure 33 Factory Default screen

RESET ALL SETTINGS

TO FACTORY DEFAULT
SETTINGS?
YES NO

Control Screen
Select MAIN MENU -> 3 CONTROL to enter the CONTROL screen. This screen has three
submenus, TURN ON & OFF, ALARM CONTROL and BATT TEST, as shown in Figure 34.

Figure 34 Control screen

1 TURN ON & OFF

2 ALARM CONTROL
3 BATT TEST

In the CONTROL screen, press the Up or Down button to move the cursor to the required item, and
press the Enter button to enter its submenu.

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 Operation and Display Panel

TURN ON & OFF screen

Select MAIN MENU -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen.
This screen shows one of two displays, TURN ON UPS and TURN OFF UPS, depending on the state
of the UPS, as shown in Figure 35.

Figure 35 Turn UPS On or Off screen

TURN OFF UPS

TURN ON UPS
TURN ON UPS BYPASS

UPS is Off UPS is On

ALARM CONTROL screen

Select MAIN MENU -> 3 CONTROL -> 2 ALARM CONTROL to enter the ALARM CONTROL screen,
as shown in Figure 36. This section allows active audible alarms to be silenced. To completely turn
off the audible alarm, refer to CONFIGURATION > UPS as shown in Figure 23.

Figure 36 Alarm Control screen

1 AUDIBLE ALARM ON
2 AUDIBLE ALARM OFF

BATT TEST screen

Select MAIN MENU -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, as shown in
Figure 37.

Figure 37 Batt Test screen

1 START
2 CANCEL
3 BATT TEST RESULT

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 Operation and Display Panel

Log Screen
Select MAIN MENU -> 4 LOG to enter the LOG screen. This screen has two submenus, VIEW LOG
and CLEAR LOG, as shown in Figure 38.

Figure 38 Log screens

254 /255
1 VIEW LOG 255 OD 1H 17m AGO
2 CLEAR LOG UPS switch to Online
mode

CLEAR LOG Screen

Select MAIN MENU > LOG > CLEAR LOG to enter the CLEAR LOG screen, as shown in Figure 39.

Figure 39 Clear Log screen

DO YOU WANT TO
CLEAR EVENT LOGS?

YES NO

Press the Up or Down button to move the cursor to the required item. Press the Enter button to
confirm the settings.

ABOUT Screen
Select MAIN MENU> ABOUT to enter the ABOUT screen, as shown in Figure 40. The ABOUT
screen displays UPS model, serial number, software version and hardware version.

Figure 40 About screen

PN: GXT4-2000 RT230

SN:1XXX60XXX1AFCXX

FW VER: U100D100
HW VER: H100

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 Operation and Display Panel

Network
Select MAIN MENU>NETWORK to enter the NETWORK screen.
The NETWORK screen displays the MAC address and the IPv4 IP address. If the Liebert GXT4 is
fitted with an optional Liebert IntelliSlot® Web card (Liebert IS-WEBCARD), the screen will display
IPv6 IP address settings (IPv6 requires configuration), as shown in Figure 41.

Figure 41 Network screens

ADDRESS MAC ADDRESS IPV4 ADDRESS IPV6 STATIC

00-02-11-4X-AX 10.163.226 .231 /24 ::

ADDRESS IPV6 LINK

ADDRESS IPV6 AUTO
Fe80::202:99ff:fe0f:4ba
::
2%1

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 Operation and Display Panel

3.4.4 Prompt List

A prompt screen is displayed during the operation of the system to alert you to certain conditions
and/or to require your confirmation of a command or other operation. See Table 5 for the prompts
and meanings.
Table 5 System prompts and meanings
Prompt Meanings
The mains power returns and the UPS transfers back to mains (AC)
Mains Power Restored
mode.
UPS Return From A Low Battery Condition The UPS transfers back to mains (AC) mode from battery low mode.
UPS Return From Battery Mode The UPS transfers back to mains (AC) mode from battery mode.
UPS Self Test Successful The UPS self-test is successfully performed.
UPS Shutdown Command Received The UPS shut down was initiated through communication.
UPS Turn Off The UPS shuts down and has no output power.
The UPS starts up successfully and supplies protected power to the
UPS Turn On
load.
UPS Shutdown Process Had Been The shutdown command sent through Liebert MultiLink or SNMP
Cancelled card to the UPS is canceled,
ECO Mode Enabled The UPS is configured to ECO mode operation,
The UPS is configured to Online mode, supplying protected power to
ECO Mode Disabled
the load through the inverter.
UPS Internal Temperature Return To
The internal temperature of the UPS recovers to normal range.
Normal
The loads are reduced, and the UPS recovers to normal state from
UPS Load Return From Overload
overload.
Load On Inverter The inverter is on and supplies protected power to the load.
The UPS is on ECO mode; the mains is supplying power to the load
Load On ECO Bypass
directly to reduce energy usage.
The programmable output receptacle 1 received a turn-off command
OUTLET1 Closed Auto / Manual
and is turned Off.
The programmable output receptacle 1 received a Turn-On
OUTLET1 Open Auto / Manual
command and is turned On
The programmable output receptacle 2 received a Turn-Off
OUTLET2 Closed Auto / Manual
command and is turned Off.
The programmable output receptacle 2 received a turn-on command
OUTLET2 Open Auto / Manual
and is turned On.
The bypass power recovered and the UPS can now transfer to
Bypass Power Restored
bypass.

3.4.5 Warning List

All UPS warning messages are described in Table 6.
Table 6 Warning list
Warning Description
The mains power is not available, or it cannot satisfy the input
Mains Power Not Available
requirements for the UPS to operate from mains power
UPS Batteries Low And Exhausted Soon The battery capacity is low and will be exhausted soon
The mains power is abnormal or the PFC side is faulty, the UPS
UPS Has Switched To Battery Mode
transfers back to Battery mode
The UPS transfers to Bypass mode, at this point, the input mains
Load On Bypass
power supplies power to the load directly, and the load is not protected
Input Power Wiring Error L-N line reverse or PE not connected.
The bypass power is not available, or it cannot satisfy the requirements
Bypass Power Not Available
for the UPS transfers to bypass
UPS Maintenance Bypass Output The UPS transfers to maintenance bypass.

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 Operation and Display Panel

3.4.6 Fault List

All UPS fault messages are described in Table 7.
Table 7 Fault list
Fault Description
UPS Self-Test Failed The battery is bad or weak or not connected.
UPS Overload The UPS is overloaded.
Inverter Out Of Order The inverter has failed.
Battery Weak/Bad The battery is bad or weak.
Output Short Circuit The output connection is short-circuited.
DC Bus Overvoltage The DC bus is faulty.
UPS Overtemperature Overtemperature occurs to the UPS and the UPS will transfer to Bypass mode.
Charger Out Of Order The charger has failed.
Fan Out Of Order At least one fan is failed.
DC Bus Discharge Fail DC-DC failure occurs.
Rectifier Out Of Order Rectifier failure occurs.

If a fault occurs, the UPS automatically switches to Bypass Mode. The original operating mode will be
maintained only in the case of a battery disconnection fault. The fault message alternates with UPS
Mode once a second, the red fault indicator on the operation and display panel lights up and the alarm
sounds continuously.
If a fault occurs:
1. Enter the ALARM CONTROL screen (see Figure 36), and select AUDIBLE ALARM ON or
AUDIBLE ALARM OFF to switch the alarm On or Off.
2. Enter the EVENT LOG screen (see Figure 38), and select VIEW LOG to view the entire Event
log.

NOTE
There will be a short delay before the EVENT LOG screen displays the historical fault log to
allow the log to load.

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 Operation

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.

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.

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.)

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 Operation

4.5 Shut Down the Liebert GXT4

To shut down the UPS from the LCD:
1. From the Main Menu select CONTROL, press Enter, then select TURN ON & OFF.
2. Press the Enter key.
3. Select TURN UPS OFF, then press Enter. Press either the Up or Down button to move the cursor
to confirm the turn off command and press Enter. The UPS will sound an audible alarm; this is
normal.
4. Power to the connected equipment is now Off.
The UPS display will still be illuminated because the batteries are still being charged. The UPS may
now be disconnected from AC power, and the UPS will completely shut down in approximately 15
seconds.

4.6 Disconnecting Input Power from the Liebert GXT4

1. After the UPS has been shut down as detailed in 4.5 - Shut Down the Liebert GXT4,
disconnect the input cable from the wall socket.
2. Wait 30 seconds and verify that all indicators have turned Off and the fan has stopped; this
indicates that the power-off is complete.
3. Turn the external battery cabinet breaker switch to the Off position if the UPS has an external
battery cabinet.
After powering Off the UPS, the UPS ceases output and the load is powered Off.

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 Communication

5.0 COMMUNICATION
This section describes the four types of communication ports on the rear of the UPS:
• Liebert IntelliSlot® port
• USB port (standard B-type)
• Terminal Block Communication
• RS232 port (DB9F)

! CAUTION
To maintain safety (SELV) barriers and for electromagnetic compatibility, signal cables
should be segregated and run separate from all other power cables.

5.1 Liebert IntelliSlot Communication Cards

The Liebert IntelliSlot port accepts four optional cards:
• Liebert IntelliSlot Web Card (IS-WEBCARD)
• Liebert IntelliSlot Relay Card (IS-RELAY)
• Liebert IntelliSlot MultiPort Card (IS-MULTIPORT)
• Liebert IntelliSlot Unity Card (IS-UNITY-DP)
The Liebert IntelliSlot Web Card provides SNMP monitoring and control of the UPS across the
network.
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom-wired applications
and delivers support for Liebert MultiLink® shutdown software.
The Liebert IntelliSlot MultiPort Card provides four sets of contacts for support of up to four
computers that have Liebert MultiLink installed.
The Liebert IntelliSlot Unity Card provides SNMP and/or RS-485 monitoring of the UPS across the
network and/or building management system. The Liebert IntelliSlot UNITY card also enables
monitoring external temperature, humidity and contact closure inputs using external sensors. (The
Liebert IS-UNITY-DP compatibility will be a future release, contact your Emerson sales
representative for availability.)
Follow instructions provided with the Liebert IntelliSlot card to configure Liebert MultiLink®, the
UPS or any additional ancillary product for the Liebert GXT4. These instructions are available at:
multilink.liebert.com

5.1.1 Liebert MultiLink

Liebert MultiLink monitors the UPS continuously and can shut down the computer or server in the
event of an extended power failure. Liebert MultiLink can also be configured to shut down the UPS.
Liebert MultiLink can communicate with the UPS via the USB port, RS232 port, contact closures via
terminal block or over the network via SNMP using the Liebert IS-WEBCARD. An optional Liebert
MultiLink license kit permits shutting down multiple computers that are protected by the UPS.
For more information about the Liebert IntelliSlot SNMP Card, Liebert IntelliSlot Web Card and
Liebert MultiLink License Kits, visit the Liebert Web site (www.liebert.com) or contact your local
Emerson® representative.

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
section5.2.1 - Configuration Program for details) or Liebert MultiLink (refer to 5.1.1 - Liebert
MultiLink for description) that is provided on the CD that is included with the UPS.

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 Communication

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 Table 8).
Table 8 Output voltage option
Factory
UPS Model Default, VAC Output Voltage Option, VAC
GXT4-500RT120 - GXT4-3000RT120 120 110, 115, 120 and 127
GXT4-3000RT208 208 208 / 220 / 230 / 240

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

NOTE
• Setting the output voltage of the Liebert GXT4-500RT120, GXT4-700RT120, and
GXT4-1000RT120 models to 110VAC automatically derates both the VA and Watt ratings to
95% of the unit’s rating.
• Setting the output voltage of the Liebert GXT4-1500RT120 and GXT4-2000RT120 models to
110VAC automatically derates both the VA and Watt ratings to 85% of the unit’s ratings,
and programming the output voltage to 115VAC automatically derates both the VA and
Watt ratings to 95% of the unit’s rating.
• Setting the output voltage of the Liebert GXT4-3000RT120 model to 110VAC automatically
derates both the VA and Watt ratings to 90% of the unit’s ratings (refer to 9.0 -
Specifications for the VA and Watt ratings).

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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 Communication

5.3 RS-232 Port

The RS-232 port uses an Emerson® proprietary protocol that is for use with Liebert MultiLink®. This
port enables a more secure connection instead of the USB cable, to the computer or server that has
Liebert MultiLink installed.

5.4 Terminal Block Communication

The Terminal Block includes eight pins, as shown in Figure 42.

Figure 42 Terminal Block Communication pin layout

1 Any Mode
2 Shutdown
3 Battery Mode
4 Shutdown
5
On Battery Mode
6
7
Low Battery
8

5.4.1 Any Mode Shutdown

The purpose of Any Mode Shutdown is to shut down the UPS output by turning Off the rectifier,
inverter and static switch so that there is no power to the loads.
Any Mode Shutdown can be operated locally or remotely:
• Local Any Mode Shutdown can be performed by shorting Pin 1 and Pin 2.
• Remote Any Mode Shutdown can be performed using a switch connected to Pin 1 and Pin 2 and
mounted at a remote location.

NOTE
Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown,
depending on the settings in the configuration program.
A current-limited source for this optocoupler (+12VDC, 50mA) will be available from the UPS.
The connection to the UPS for remote connection will be via terminal block connector.
Any Mode Shutdown wiring must conform to all national, regional and local wiring
regulations.

! WARNING
When the Auto-Enable output option is selected and the UPS output is disabled using Pin 1
and Pin 2, the Liebert GXT4’s output can turn On automatically and without warning if the
Pin 1 and Pin 2 connection is changed.

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 Communication

5.4.2 Battery Mode Shutdown

Battery Mode Shutdown permits shutting down the UPS by turning Off the rectifier, inverter and
static switch so that there is no power to the load when the UPS is On Battery. The auxiliary power
for the UPS will still be active.
Battery Mode Shutdown can be performed locally or remotely:
• Local Battery Mode shutdown can be performed by shorting Pin3 and Pin4.
• Remote Battery Mode Shutdown can be performed using a switch connected to Pin3 and Pin4 and
mounted at remote location.

NOTE
Remote Power Off will be performed by NO contact.
A current-limited source (+12VDC, 50mA) will be available from UPS.
The connection to the Liebert GXT4 for remote connection will be via terminal block connector.
Battery Mode Shutdown wiring must conform to all national, regional and local wiring codes
and laws.
This signal must last for 1.5 seconds or longer.
A battery shutdown signal will not cause an immediate shutdown. It will start a 2-minute
shutdown timer. This timer cannot be stopped once triggered. If the mains power returns
during this countdown, the Liebert GXT4 will still shut down and must remain shut down for
10 seconds. Whether the UPS turns back On when the power is restored depends on the
auto-restart setting.

5.4.3 On Battery
On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power
from the battery this dry contact will be closed.

5.4.4 Low Battery

Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power
from the battery and has reached the Low Battery Warning time selected in the configuration
program, this dry contact will be closed.

NOTE
The rated values for the dry contacts for the On Battery and Low Battery signals are:
• Rated Voltage: 30V (AC or DC)
• Rated Current: 300mA

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 Maintenance

6.0 MAINTENANCE
This section describes replacing the internal battery pack, precautions, checking the Liebert GXT4’s
status and checking UPS functions.

! WARNING
The battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed before replacing the battery pack:
• Remove rings, watches and other metal objects.
• Use tools with insulated handles.
• Do not lay tools or other metal objects on the batteries.
• If the battery kit is damaged in any way or shows signs of leakage, contact your local Emer-
son representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
• Handle, transport and recycle batteries in accordance with local regulations.

6.1 Replacing the Internal Battery Pack

The Liebert GXT4 is designed to allow the user to replace the internal battery pack safely. Refer to
Table 9 for internal battery pack part numbers for Liebert GXT4 UPS:
Table 9 Replacement internal battery pack model number
Replacement Internal Battery Quantity
UPS Model Number Pack Model Number Required
Liebert GXT4-500RT120 GXT4-5A48BATKIT 1
Liebert GXT4-700RT120 GXT4-5A48BATKIT 1
Liebert GXT4-1000RT120 GXT4-5A48BATKIT 1
Liebert GXT4-1500RT120 GXT4-9A48BATKIT 1
Liebert GXT4-2000RT120 GXT4-9A48BATKIT 1
Liebert GXT4-3000RT120 GXT4-9A72BATKIT 1
Liebert GXT4-3000RT208 GXT4-9A72BATKIT 1

Read all safety cautions before proceeding. A trained user can replace the internal battery pack when
the UPS is always in a restricted access location (such as a rack or server closet). Contact your local
dealer or Emerson representative to obtain the pricing of the appropriate replacement battery pack.

! CAUTION
Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.

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 Maintenance

6.1.1 Battery Replacement Procedures

1. Remove the front plastic bezel cover from the UPS.
2. Loosen and remove the six screws on the battery door, as shown in Figure 43.
3. Lay the battery door and screws aside for reassembly.

Figure 43 Removing the front bezel cover and battery door

4. Gently pull the battery wire out and disconnect the battery plug and battery receptacle, as shown
in Figure 44.
Figure 44 Disconnecting the battery plug and battery receptacle (front view)

Battery Connector Battery Receptacle

5. Grasp the battery handle, and pull the internal battery pack out of the UPS, as shown in
Figure 45.
Figure 45 Pull out the battery

Internal Battery Pack

Battery Handle

Pull Out with Battery Handle

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 Maintenance

6. Unpack the new internal battery pack. Take care not to destroy the packing.
Compare the new and old internal battery pack to make sure they are the same type and model. If
so, proceed with Step 7; if they are different, stop and contact your local Emerson representative,
or Emerson Channel Support.
7. Line up and slide in the new internal battery pack.
8. Reconnect the battery plug and battery receptacle
9. Push the battery wire and internal battery pack back into the UPS.
10. Reattach the front battery door with the six screws.
11. Reattach the front plastic bezel cover to the UPS.
NOTE
The internal battery pack is hot-swappable. However, caution should be exercised because
during this procedure the load is unprotected from disturbances and power outages. Do not
replace the battery while the UPS is operating in Battery Mode. This will result in a loss of
output power and will drop the connected load.

6.2 Battery Charging

The batteries are valve-regulated, nonspillable, lead acid and should be kept charged to attain their
design life. The Liebert GXT4 charges the batteries continuously when it is connected to the utility
input power.
If the Liebert GXT4 will be stored for a long time, Emerson recommends connecting the UPS to input
power for at least 24 hours every four to six months to ensure full recharge of the batteries.

6.3 Precautions
Although the Liebert GXT4 has been designed and manufactured to ensure personal safety, improper
use can result in electrical shock or fire. To ensure safety, observe the following precautions:
• Turn Off and unplug the Liebert GXT4 before cleaning it.
• Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.
• Never block or insert any objects into the ventilation holes or other openings of the Liebert GXT4.
• Do not place the Liebert GXT4 power cord where it might be damaged.

6.4 Checking UPS Status

Emerson recommends checking the UPS operation status every six months.
• Check if the UPS is faulty: Is the Fault Indicator On? Is the UPS sounding an alarm?
• Check if the UPS is operating in Bypass mode: Normally, the UPS operates in Normal Mode; if it
is operating in Bypass Mode, stop and contact your local Emerson representative or Emerson
Channel Support.
• Check if the battery is discharging: When the utility input is normal, the battery should not
discharge. If the UPS is operating in Battery Mode, stop and contact your local Emerson
representative or Emerson Channel Support.

6.5 Checking UPS Functions

NOTE
UPS function check procedures may interrupt power supply to the connected load.

Emerson recommends checking the UPS functions once every six months.
Back up the load data before conducting the UPS functions check. Procedures are as follows:
1. Press the Standby/Manual Bypass button to check whether the alarm and indicators are normal.
2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators
are On and the UPS is operating normally.
3. Press the On/Alarm Silence/Manual Battery Test button for three seconds after Inverter Mode;
the UPS should initiate battery self-test. Check to determine whether the battery is operating
normally. If not, stop and contact your local Emerson representative or Emerson Channel
Support.

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 Troubleshooting

7.0 TROUBLESHOOTING
This section indicates various UPS symptoms a user may encounter and provides a troubleshooting
guide in the event the UPS develops a problem. Use the following information to determine whether
external factors caused the problem and how to remedy the situation.

7.1 UPS Symptoms

The following symptoms indicate the Liebert GXT4 is malfunctioning:
• The relative indicators illuminate, indicating the UPS has detected a problem.
• An alarm buzzer sounds, alerting the user that the UPS requires attention.

7.1.1 Indicator and LCD

In addition to the fault indicator being illuminated, the LCD will display the fault. The displayed
fault on the LCD is described in Table 10
Table 10 Description of the displayed fault
Displayed Fault Cause Corrective Steps
UPS self test failed The battery is bad or weak. Contact customer service.
UPS shutdown The UPS shuts down through
Contact customer service.
command received communication.
Reduce the load and contact customer
UPS overload The UPS is overloaded.
service.
Inverter Out of Order The inverter is faulty. Contact customer service.
Battery Weak/Bad The battery is bad or weak. Replace the battery.
Shut down the equipment and contact
Output Short Circuit The output connection is short-circuited.
customer service.
DC Bus Overvoltage The DC bus is faulty. Contact customer service.
Over-temperature occurs to the UPS and the Reduce the load and contact customer
UPS Overtemperature
UPS will transfer to Bypass mode. service.
Charger Out of Order The charger is faulty. Contact customer service.
Fan Out of Order At least one fan is faulty. Contact customer service.
DC Bus Discharge Fail A DC-DC failure occurs. Contact customer service.

NOTE
If the UPS encounters a fault and no correction attempt is performed within 2 minutes, the
LCD backlight will flash (on 1 second and off 1 second) as an alert.
Press any button to exit the alert mode. If no correction attempt is performed on the UPS, the
LCD backlight will flash again until the UPS fault is corrected.

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 Troubleshooting

7.1.2 Audible Alarm

An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS
operating status. The audible alarm will sound as described in Table 11.
Table 11 Audible alarm description
Condition Alarm
Battery discharge Half-second beep every 10 seconds
Low battery Two half-second beeps every 5 seconds
UPS fault, load on bypass 1-second beep every 4 seconds
UPS fault, no power to load Continuous
Overload Half-second beep every half second
Battery replacement 2-second beep every 2 minutes
Battery loss Continuous
Wiring problem (loss of proper grounding for UPS) Continuous
Bypass reminder 1-second beep every 60 seconds

7.2 Troubleshooting
In the event of an issue with the UPS, refer to Table 12 to determine the cause and solution. If the
fault persists, contact Emerson® Channel Support.
Table 12 Troubleshooting table
Problem Cause Solution
UPS is short-circuited or Ensure UPS is Off. Disconnect all loads and ensure nothing is lodged in
overloaded output receptacles. Ensure loads are not defective or shorted internally.
UPS fails to start Check to ensure the internal battery is connected. If it is not, make the
Batteries are not charged connection and try to start the unit. If the battery is connected, leave the
enough or not connected UPS connected to input power for 24 hours to recharge batteries, then try
to start the unit.
UPS is operating from battery mode. Ensure UPS is securely plugged
UPS is not plugged in
into the wall receptacle.
Battery indicator UPS input protection fuse has UPS is operating from battery mode. Save data and close applications.
is illuminated blown/opened Replace UPS input fuse, then restart UPS.
UPS is operating from battery mode. Save data and close applications.
Mains power is out of tolerance
Ensure mains supply voltage is within acceptable limits for UPS.
Keep UPS plugged in continuously at least 24 hours to recharge
Batteries are not fully charged
batteries.
UPS has
reduced battery UPS is overloaded Check load level indicator and reduce the load on the UPS.
backup time
Batteries may not be able to Replace batteries. Contact your local dealer, Emerson representative or
hold a full charge due to age Emerson Channel Support for replacement battery kit.
Check battery connections, completely power down and restart UPS.
Battery indicator Battery source is not available;
NOTE: If the battery circuit opens while the UPS is running, it will be
is flashing. continuous horn.
detected when the next battery test is performed.
The AC input powers the PFC input and serves as the bypass source. If
Because the voltage or
Bypass indicator the AC is present but the voltage or frequency exceeds the acceptable
frequency is outside acceptable
is flashing. range for safe operation with a load, the bypass will be disabled and this
limits, the bypass is disabled.
indicator will flash, indicating that the bypass is unavailable.

When reporting a UPS issue to Emerson, include the UPS model and serial number. These are
located in several places for your ease of location: on the top panel (rack mount orientation); the left
side (tower orientation); the rear panel; on the front of the unit behind the front plastic bezel; and on
the LCD select Main Menu > About.

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 Battery Cabinet

8.0 BATTERY CABINET

Optional battery cabinets are available for the Liebert GXT4. The battery connectors and input
breaker are on the battery cabinet’s rear panel, as shown in Figure 46. For battery cabinet
specifications, refer to Table 15. The Liebert GXT4 may be equipped with a maximum of six
extension battery packs.
For battery run times, refer to Table 17.

Figure 46 Battery cabinet

Isolation Breaker

Battery Connectors

! WARNING
Do not contact the battery connectors and ground without wearing protective gloves and
clothing and taking other precautions against electrical shock. The battery loop and AC input
are not insulated, which may cause a dangerous voltage between the battery connectors and
ground.

NOTE
External Battery Connectors are wired in parallel. Either connector can be connected to the
UPS or to another battery cabinet.

NOTE
The standard battery cable delivered with the battery cabinet is 0.65m (2.13ft) long

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 Specifications

9.0 SPECIFICATIONS
Table 13 Specifications of GXT4-500RT120 - GXT4-700RT120 and GXT4-1000RT120 models
Product Model
GXT4-500RT120 GXT4-700RT120 GXT4-1000RT120
Parameters (500VA/450W) (700VA/630W) (1000VA/900W)
Dimensions, D × W × H, in. (mm)
16.2 x 16.9 x 3.4
Unit
(408 x 430 x 85)
25.5 x 23.9 x 10.6
Shipping
(647 x 607 x 270)
Weight, lb (kg)
Unit 40 (18.2)
Shipping 47 (21.4)
Input AC
Voltage Range (typical) 120VAC nominal; variable based on output load
90% ~ 100% loading 90VAC/140VAC
70% ~ 90% loading 86VAC/140VAC
30% ~ 70% loading 77VAC/140VAC
0 ~ 30% loading 60VAC/140VAC
Frequency 40Hz ~ 70Hz; Auto Sensing
Input Power Cord 10 ft. attached w/ NEMA 5-15P plug
Output AC
Output Receptacles 5-15R × 6
Voltage 110/115/120VAC (user-configurable); ±3%
Waveform Sine wave
Utility (AC) Mode Overload 200% for 2 seconds; 150% for 50 seconds with transfer to bypass
Battery
Type Valve-regulated, nonspillable, lead acid
Qty × V× Rating 4 × 12V × 5.0Ah
Battery Mfr./Part # YUASA/NPH5-12; CSB/ HR 1221W; CSB/GP1245
Backup Time See Table 17
3 Hours to 90% capacity after full discharge with 100% load till UPS auto-shutdown
Recharge Time
(Internal Batteries Only)
Environmental Requirements
Operating Temperature, °F (°C) 32 to 104 (0 to 40); see Table 16 - Operating temperature parameters
Storage Temperature, °F (°C) 5ºF to 122ºF (-15ºC to 50ºC)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 77ºF (25ºC) without derating
Storage Elevation 50,000 ft. (15000m) maximum
<43dBA max @ 3ft. (1m) front and sides < 50 dBA, at 3ft. (1m) rear
Audible Noise
<46dBA max @ 3ft. (1m) rear < 45 dBA, at 3ft. (1m) front and sides
Agency
Safety UL 1778, cUL Listed
RFI/EMI FCC Class A
Surge Immunity IEC 62040-2 2nd Ed
Transportation ISTA Procedure 1A

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 Specifications

Table 14 Specifications of GXT4-1500RT120 - GXT4-3000RT120 and GXT4-3000RT208 models

Product Model
GXT4-1500RT120 GXT4-2000RT120 GXT4-3000RT120 GXT4-3000RT208
Parameters (1500VA/1350W) (2000VA/1800W) (3000VA/2700W) (3000VA/2700W)
Dimensions, D × W × H, in. (mm)
19.7 x 16.9 x 3.4 23.7 x 16.9 x 3.4
Unit
(497 × 430 × 85) (602 × 430 × 85)
25.5 x 23.9 x 10.6 29.4 x 23.4 x 10.6
Shipping
(647 x 607 x 270) (747 x 607 x 270)
Weight, lb. (kg)
Unit 54.6 (24.8) 56.1 (25.5) 71.4 (32.4)
Shipping 69.6 (31.6) 70.5 (32) 86 (39)
Input AC
208VAC nominal;
Voltage Range (typical) 120VAC nominal; variable based on output load variable
based on output load
90 - 100% loading 102VAC/140VAC 177VAC/280VAC
70 - 90% loading 96VAC/140VAC 168VAC/280VAC
30 - 70% loading 84VAC/140VAC 150VAC/280VAC
0 - 30% loading 60VAC/140VAC 115VAC/280VAC
Frequency 40 - 70Hz; Auto Sensing
10 ft. attached w/ 10 ft. attached w/ 10 ft. attached w/ 10 ft. attached w/
Input Power Cord
NEMA 5-15P plug NEMA 5-20P plug NEMA L5-30P plug NEMA L6-20P plug
Output AC
L5-
Output Receptacles 5-15R × 6 5-20R × 6 L6-20R×1+L6-15R×2
30R×1+5-20R×6
208/220/230/240 VAC
Voltage 110/115/120VAC (user-configurable); ±3%
(user-configurable); ±3%
Waveform Sine wave
200% for 2 seconds 200% for 2 seconds
Utility (AC) Mode Overload
150% for 50 seconds 150% for 10 seconds
Battery
Type Valve-regulated, nonspillable, lead acid
Qty×V×Rating 4 × 12V × 9.0Ah 6 × 12V × 9.0Ah 6 × 12V × 9.0Ah
Battery Mfr./Part # Panasonic/UP- RW1245; CSB/HR 1234W F2; CSB UPS12460F2
Backup Time See Table 17
Recharge Time
to 90% capacity after full
discharge with 100% load till 4 Hours 3 Hours
UPS auto-shutdown (Internal
Batteries Only)
Environmental
Operating Temperature, °F (°C) +32 to +104 (0 to 40); see Table 16 - Operating temperature parameters
Storage Temperature, °F (°C) 5 to +122 (-15 to 50)
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 77ºF (25ºC) without derating
Storage Elevation 50,000 ft. (15000m) maximum
< 45dBA at 3ft (1m) rear
<48dBA max @ 3ft (1m) front and side
Audible Noise < 46 dBA at 3ft. (1m)
<48dBA max @ 3ft. (1m) rear
front and side
Agency
Safety UL 1778, c-UL Listed
RFI/EMI FCC Class A
Surge Immunity IEC 62040-2 2nd Ed
Transportation ISTA Procedure 1A

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 Specifications

Table 15 Battery cabinet specifications

Model Number
Parameter GXT4-48VBATT GXT4-72VBATT
GXT4-500RT120,GXT4-700RT120
GXT4-1000RT120,GXT4-1500RT120, GXT4-3000RT120
Used w/UPS Model GXT4-2000RT120 GXT4-3000RT208
Dimensions, D × W × H, in (mm)
19.7 x 16.9 x 3.3 23.7 x 16.9 x 3.3
Unit
(497 × 430 × 85) (602 × 430 × 85)
24.3 x 22.4 x 10.3 28.2 x 22.4 x 10.3
Shipping
(617 x 570 x 262) (717 x 570 x 262)
Weight, lb (kg)
Unit 57.3 (26) 83.8 (38)
Shipping 86 (39) 110 (50)
Battery parameters
Type Valve-regulated, nonspillable, lead acid
Qty × V× Rating 2 × 4 × 12V × 9.0Ah 2 × 6 × 12V × 9.0Ah
Battery Mfr./Part # Panasonic/UP-RW1245; CSB/HR 1234W F2; CSB UPS12460F2
Backup Time See Table 17
Environmental
Operating Temperature, °F (°C) 32 to 104 (0 to 40)
19 to 122 (-15 to 50)
Storage Temperature, °F (°C)
High ambient temperatures will reduce battery life.
Relative Humidity 0% to 95%, non-condensing
Operating Elevation Up to 10,000 ft. (3000m) at 104ºF (40ºC) without derating
Storage Elevation 50,000 ft. (15000m) maximum
Agency
Safety UL 1778, c-UL Listed
RFI/EMI FCC Class A
Surge Immunity IEC 62040-2 2nd Ed
Transportation ISTA Procedure 1A

Table 16 Operating temperature parameters

Ambient Temperature, °C (°F) 25-30 (77-86) 30-35 (86-95) 35 - 40 (95-104)
Maximum Output
Power Factor Derating 100%-93% 93%-86% 86%-79%
@ Maximum Load

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 Specifications

Table 17 Battery run times

208VAC
120VAC RT Models RT Model
Number of External Load Percent
Battery Cabinets of Capacity 500VA 700VA 1000VA 1500VA 2000VA 3000VA 3000VA
10% 128 105 90 123 92 82 92
20% 82 61 37 52 38 38 39
30% 41 37 30 34 23 23 23
40% 38 32 23 23 16 16 16
50% 34 27 17 18 12 12 11
Internal Battery
60% 31 22 14 14 9 9 9
70% 27 18 11 11 7 7 7
80% 23 15 9 9 5 5 5
90% 20 13 8 7 4 4 4
100% 17 11 7 6 3 3 3
10% 448 426 332 335 303 224 303
20% 329 302 165 162 140 137 139
30% 223 163 137 129 96 95 95
40% 166 144 108 96 66 66 65
Internal Battery 50% 153 125 92 72 49 49 48
+ 1 External
Battery Cabinet 60% 139 106 74 54 38 41 41
70% 125 94 61 46 33 34 34
80% 108 78 49 38 28 27 27
90% 100 69 40 34 23 23 25
100% 92 60 38 31 20 21 21
10% 480 480 456 451 431 427 431
20% 454 433 331 318 207 202 205
30% 429 327 222 187 150 149 149
40% 333 265 166 151 124 124 123
Internal Battery 50% 309 201 152 131 97 98 97
+ 2 External
Battery Cabinets 60% 225 164 137 107 75 76 75
70% 201 153 122 91 61 62 62
80% 166 142 105 74 50 50 50
90% 159 131 95 64 41 45 46
100% 151 120 79 53 38 41 41
10% 480 480 480 480 455 452 455
20% 480 461 441 426 326 323 325
30% 458 438 336 312 197 196 195
40% 442 344 305 198 155 155 154
Internal Battery 50% 426 322 209 160 136 136 135
+ 3 External
Battery Cabinets 60% 338 300 167 145 111 112 112
70% 322 213 157 130 96 98 98
80% 305 189 146 111 78 79 79
90% 225 163 135 99 68 70 70
100% 209 155 124 83 56 60 60

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 Specifications

Table 17 Battery run times (continued)

208VAC
120VAC RT Models RT Model
Number of External Load Percent
Battery Cabinets of Capacity 500VA 700VA 1000VA 1500VA 2000VA 3000VA 3000VA
10% 480 480 480 480 480 466 480
20% 480 480 459 446 424 421 423
30% 480 457 435 341 308 307 307
40% 460 441 339 309 192 192 191
Internal Battery 50% 448 424 316 204 157 158 157
+ 4 External
Battery Cabinets 60% 436 336 221 164 142 143 142
70% 424 318 199 153 126 128 128
80% 340 301 166 141 107 109 109
90% 327 213 158 130 95 97 98
100% 315 197 149 112 79 81 81
10% 480 480 480 480 480 480 480
20% 480 480 466 458 441 439 440
30% 480 464 446 432 333 332 331
40% 467 451 427 333 225 225 224
Internal Battery 50% 457 438 341 306 188 190 188
+ 5 External
Battery Cabinets 60% 447 424 322 207 158 159 159
70% 438 343 303 167 145 147 147
80% 428 329 212 158 133 135 135
90% 390 315 193 148 120 122 122
100% 341 300 166 139 104 107 106
10% 480 480 480 480 480 480 480
20% 480 480 480 467 452 450 451
30% 480 480 458 445 422 421 421
40% 480 462 442 422 319 319 318
Internal Battery 50% 467 451 426 327 216 218 216
+ 6 External
Battery Cabinets 60% 459 440 342 304 185 188 186
70% 451 428 326 208 159 160 160
80% 442 370 309 184 148 149 150
90% 434 336 221 161 137 139 139
100% 426 324 204 153 126 129 129
Run times in this table are approximate. Times can vary by ±5% due to manufacturing variances of the batteries. Times are based on new,
fully charged batteries with 100% resistive loads and an ambient temperature of 77°F (25°C). To increase this time, turn Off non-essential
loads (such as idle computers and monitors) or add optional external battery cabinets.

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 Specifications

9.1 Product Warranty Registration

Registration is not required to activate the product warranty on a Liebert UPS. Registration is
required to qualify for the Product Protection Promise. To register, visit the Emerson Network
Power® Web site to fill out the online form at:
www.emersonnetworkpower.com/en-US/Forms/Pages/LiebertProductWarrantyRegis-
tration.aspx
• To contact warranty support by e-mail: dpg.warranty@emerson.com

9.2 Technical Support

Technical support contacts are listed on the back cover of this document. To contact Emerson Channel
Product Support:
Phone
• NORTH AMERICA: 1-800-222-5877
• OUTSIDE NORTH AMERICA: 00-800-1155-4499
E-mail
• TECHNICAL SUPPORT: liebert.upstech@emerson.com

49 Liebert® GXT4™

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 Technical Support / Service
Web Site
www.liebert.com
Monitoring
liebert.monitoring@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Single-Phase UPS & Server Cabinets
liebert.upstech@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Three-Phase UPS & Power Systems
800-543-2378
Outside North America: 614-841-6598
Environmental Systems
800-543-2778
Outside the United States: 614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
While every precaution has been taken to ensure the accuracy Fax: +39 049 5841 257
and completeness of this literature, Liebert Corporation assumes no Asia
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
29/F, The Orient Square Building
© 2014 Liebert Corporation F. Ortigas Jr. Road, Ortigas Center
All rights reserved throughout the world. Specifications subject to change Pasig City 1605
without notice. Philippines
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks +63 2 687 6615
or registered trademarks of their respective owners. Fax: +63 2 730 9572
SL-23193_REV0_10-14

Emerson Network Power

Liebert
www.emerson.com

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