Liebert GXT3, 5-10kVA UPS, User Manual
AC Power
For Business-Critical Continuity™
Liebert® GXT3™ 208V, 5000-10,000VA, 6000RTL630
User Manual
TABLE OF CONTENTS
1.0
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.0
SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1
Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters. . . . . . . . . . . . . . . . . . . . 5
2.2
Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3
Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5
DC-to-DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.7
Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0
MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1
Main Frame and Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2
Removable Power Distribution Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3
Internal Battery Packs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.0
WHAT’S INCLUDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.0
INSTALLATION AND CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1
Install the Main Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1.1
5.1.2
5.1.3
Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rack-Mount UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing the Adjustable Rack-Mount Kit—Sold Separately . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2
External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3
Connect Input/Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
Remove the Power Distribution Box from 5000 and 6000VA Models . . . . . . . . . . . . . . . . . . .
Remove the Power Distribution Cover from 8000 and 10,000VA Models . . . . . . . . . . . . . . . .
Install the Power Distribution Box on 5000 and 6000VA Models . . . . . . . . . . . . . . . . . . . . . .
Install the Power Distribution Box on 8000 and 10,000VA Models . . . . . . . . . . . . . . . . . . . .
Distribution Box Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
18
18
19
19
5.4
IT Power System Configuration—Liebert GXT3-6000RTL630 Only . . . . . . . . . . . . . . . . . . 21
6.0
CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1
Configuration Program Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.1
What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.0
CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1
ON/Alarm Silence/Manual Battery Test Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2
Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3
Load Level Indicators (4 Green, 1 Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.4
Battery Level Indicators (5 Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5
UPS Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.0
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
8.1
Startup Checklist for the Liebert GXT3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.2
Initial Startup and Electrical Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.3
Manual Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
i
8.4
Put the Liebert GXT3 in Manual Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.5
Shut Down the Liebert GXT3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.6
Disconnecting Input Power from the Liebert GXT3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.7
Maintenance Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.0
COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.1
Communication Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.2
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.2.1
9.2.2
9.2.3
9.2.4
9.3
Any Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28
28
29
29
UPS IntelliSlot Communication Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.3.1
Liebert MultiLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.4
Remote Emergency Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.0
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10.1
Replacing the Internal Battery Pack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10.2
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.3
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.4
Checking UPS Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.5
Checking UPS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.6
Replacing the Power Module on 8000 and 10,000VA models . . . . . . . . . . . . . . . . . . . . . . . . 33
11.0
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.1
UPS Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.1.1 Battery Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.1.1 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.1.2 Audible Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
11.2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12.0
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
12.1
Auto-Learning Battery Run Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
ii
FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Liebert GXT3 front view—rack-mount and tower configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Liebert GXT3 5000VA and 6000VA rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input power hardwire boxes—5000 and 6000VA models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Liebert GXT3-6000RTL630, rear view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Liebert GXT3 8000VA and 10,000VA rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power distribution models for 5000VA and 6000VA models of Liebert GXT3 . . . . . . . . . . . . . . . . 9
Power distribution models for 8000VA and 10,000VA models of Liebert GXT3 . . . . . . . . . . . . . . 10
Internal battery pack features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Support bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Remove the front plastic bezel cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rotate the operation and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
External battery cabinets connected to 6000VA Liebert GXT3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power distribution box removal from 5000 and 6000VA models . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power distribution box removal from 8000 and 10,000VA models . . . . . . . . . . . . . . . . . . . . . . . . 18
Distribution box electrical connections diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Terminal block connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Remove cover from IT Power System Connectors compartment . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Liebert GXT3 control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Load level indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Battery level indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Terminal block communication pin layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removing the front plastic bezel cover and battery door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Disconnecting the battery plug and battery receptacle (front view) . . . . . . . . . . . . . . . . . . . . . . . 31
Pulling out the battery packs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removing power module from Liebert GXT3 8000 and 10,000VA models . . . . . . . . . . . . . . . . . . 34
Battery level indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Branch circuit breaker ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicator descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audible alarm description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS specifications—5000, 6000, 8000 and 10,000 models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS specifications—Liebert GXT3-6000RTL630 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal battery cabinet specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External battery cabinet specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power distribution specifications: GXT3-5000RT208, GXT3-6000RT208 and
GXT3-6000RTL630 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power distribution box specifications for GXT3-8000RT208 and GXT3-10000RT208 . . . . . . . . .
Battery run time, minutes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii
19
20
25
35
36
36
38
39
40
40
41
41
42
43
iv
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions. Read all safety and operating instructions before
operating the uninterruptible power system (UPS). Adhere to all warnings on the unit and in this
manual. Follow all operating and user instructions. This equipment can be operated by individuals
without previous training.
This product is designed for commercial/industrial use only. It 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. The UPS is designed for data processing equipment. If uncertain, consult your dealer or local
Emerson Network Power representative.
This UPS is designed for use on a properly grounded (earthed), 100/200, 110/220, 115/230,
120/208,120/240 or 127/220VAC, 50 or 60Hz supply. The factory default setting is 120/208VAC, 60Hz.
Installation instructions and warning notices are in this manual.
The GXT3 208VAC 5000 - 10000 is designed for use with a four-wire input (L1, L2, N, G).
The GXT3-6000RTL630 is designed be used with a three-wire, two-phase utility source (L1, L2, G).
!
WARNING
The battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed when replacing the battery pack:
•
•
•
•
•
Wear rubber gloves and boots
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 Emerson representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
• Handle, transport and recycle batteries in accordance with local regulations.
!
WARNING
Although the Liebert GXT3 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 GXT3 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 UPS.
Do not place the Liebert GXT3 power cord where it might be damaged.
1
ELECTROMAGNETIC COMPATIBILITY—The Liebert GXT3 complies with the limits for a
Class A digital device, pursuant to Part 15 of FCC rules.
Operation is subject to the following conditions:
• This device may not cause harmful interference.
• 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 GXT3 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.
NOTICE
This is a product for restricted sales distribution to informed partners. Installation
restrictions or additional measures may be needed to prevent radio interference.
Operate the UPS in an indoor environment only in an ambient temperature range of 0-40°C
(32-104°F). Install it in a clean environment, free from moisture, flammable liquids, gases and corrosive substances.
The Liebert GXT3-5000RT208, Liebert GXT3-6000RT208 and the Liebert GXT3-6000RTL630 contain
no user-serviceable parts except the internal battery pack. The Liebert GXT3-10000RT208 and the
Liebert GXT3-8000RT208 contain no user-serviceable parts except the internal battery pack and the
Power Module. The UPS On/Off push buttons do not electrically isolate internal parts. Under no circumstances attempt to gain access internally due to the 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 the UPS performance alters in use. Refer all faults to your dealer.
Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and
the required precautions. Keep unauthorized personnel away from the batteries. Keep unauthorized
personnel away from the batteries. Proper disposal of batteries is required. Refer to your local laws
and regulations for disposal requirements.
Never block or insert any object into the ventilation holes or other openings.
DO NOT CONNECT equipment that could overload the UPS or demand DC current from the UPS,
for example: electric drills, vacuum cleaners, laser printers, hair dryers or any appliance using halfwave rectification.
Storing magnetic media on top of the UPS may result in data loss or corruption.
Turn Off and isolate the UPS before cleaning it. Use only a soft cloth, never liquid or aerosol cleaners.
Information for the Protection of the Environment
UPS SERVICING—This 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.
2
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
ON/Alarm Silence/Manual Battery Test
OFF/Bypass
WEEE
3
Introduction
1.0
INTRODUCTION
Congratulations on your choice of the Liebert GXT3 uninterruptible power system (UPS). The Liebert
GXT3 comes in nominal power ratings of 5000VA, 6000VA, 8000VA and 10,000VA. It is designed to
provide conditioned power to microcomputers and other sensitive electronic equipment.
When it is generated, alternating current is clean and stable. However, during transmission and distribution it is subject to voltage sags, spikes and complete power failure that may interrupt computer
operations, cause data loss and even damage equipment. The Liebert GXT3 protects equipment from
these disturbances.
The Liebert GXT3 is a compact, on-line UPS. An on-line UPS continuously conditions and regulates
its output voltage, whether utility power is present or not. It supplies connected equipment with
clean, sinewave power. Sensitive electronic equipment operates best from sinewave power.
For ease of use, the Liebert GXT3 features a light-emitting diode (LED) display to indicate both load
percentage and battery capacity. It also provides self-diagnostic tests, a combination ON/Alarm
Silence/Manual Battery Test button, a Standby/Manual Bypass button and a configuration program.
The Liebert GXT3 has a Liebert IntelliSlot® port for communication between the UPS and a network
server or other computer systems. This port provides detailed operating information including
voltages, currents and alarm status to the host system when used in conjunction with Liebert
MultiLink®. Liebert MultiLink can also remotely control UPS operation.
4
System Description
2.0
SYSTEM DESCRIPTION
Output
Input
Static
Bypass
L1
L2
N
L1
TVSS &
EMI/RFI
Filters
Rectifier/PFC
DC-to-DC
Converter
L2
Inverter
Battery
Charger
Battery
G
2.1
N
G
Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters
These UPS components provide surge protection and filter both electromagnetic interference (EMI)
and radio frequency interference (RFI). They minimize any surges or interference present in the utility line and keep the sensitive equipment protected.
2.2
Rectifier/Power Factor Correction (PFC) Circuit
In normal operation, the rectifier/power factor correction (PFC) circuit converts utility AC power to
regulated DC power for use by the inverter while ensuring that the waveshape of the input current
used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives:
• The utility power is used as efficiently as possible by the UPS.
• The amount of distortion reflected on the utility is reduced.
This results in cleaner power being available to other devices in the building not being protected by
the Liebert GXT3.
2.3
Inverter
In normal operation, the inverter utilizes the DC output of the power factor correction circuit and
inverts it into precise, regulated sinewave AC power. Upon a utility power failure, the inverter
receives its required energy from the battery through the DC-to-DC converter. In both modes of operation, the UPS inverter is on-line and continuously generating clean, precise, regulated AC output
power.
2.4
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 GXT3 is connected to
utility power.
2.5
DC-to-DC Converter
The DC-to-DC converter utilizes energy from the battery system and raises the DC voltage to the optimum operating voltage for the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus increasing reliability.
5
System Description
2.6
Battery
The Liebert GXT3 utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery
design life, operate the UPS in an ambient temperature of 15°C to 25°C (59°F to 77°F). Optional
external battery cabinets are available to extend battery run times. For run times, see Table 14.
2.7
Dynamic Bypass
The Liebert GXT3 provides an alternate path for utility power to the connected load in the unlikely
event of a UPS malfunction. Should the UPS have an overload, overtemperature or any other UPS
failure condition, the UPS automatically transfers the connected load to bypass. Bypass operation is
indicated by an audible alarm and illuminated amber Bypass LED (other LEDs may be illuminated to
indicate the diagnosed problem). To manually transfer the connected load from the inverter to bypass,
press the Standby/Manual Bypass button once and hold it for about 2 seconds.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances
in the utility supply.
6
Major Components
3.0
MAJOR COMPONENTS
The Liebert GXT3 is composed of three major assemblies to provide easier handling, installation and
versatility.
3.1
Main Frame and Electronics
All models of the Liebert GXT3 are shipped without the internal batteries installed. Power distribution varies by model and rating.
• Liebert GXT3 5000 and 6000VA models ship with a basic hardwire distribution box attached and
ready to be connected to the load (see Figure 2).
• Liebert GXT3RTL630 ships with a power distribution box attached (see (Figure 4).
• Liebert GXT3 8000 and 10,000VA models with a cover plate installed over connections for any of
several optional power distribution boxes (see Figure 5).
Figure 1
Liebert GXT3 front view—rack-mount and tower configurations
Upper Bezel
Status Indicators
and Controls
Lower Bezel and
Battery Access
Door
Figure 2
Liebert GXT3 5000VA and 6000VA rear view
USB Port
REPO
Liebert
IntelliSlot Port
Knockouts for Hardwired
Power Input
Terminal Block
Communication
External Battery
Connector
Input Breaker
Figure 3
Input power hardwire boxes—5000 and 6000VA models
Maintenance
Bypass Breaker
Input
Breaker
Input Breaker
PD2-HDWR-MBS - 5000
and 6000VA models
PD2-HDWR
5000 and 6000VA models
NOTE
Hardwire and hardwire/receptacle boxes that include a manual bypass switch permit AC
power to continue to flow from the utility input to the load while the box is removed from the
UPS. For details, refer to 3.2 - Removable Power Distribution Box.
7
Major Components
Figure 4
Liebert GXT3-6000RTL630, rear view
Output Breaker for
L6-20R #2 and #3
REPO Connection
Block
USB Port
Terminal Block
Communication
Output Breaker
for L6-30R #4
External
Battery
Connector
Liebert
IntelliSlot Port
IT Power
System
Access
Cover
Input Breaker
for L6-30P #1
Output Breaker
for L6-30R #5
Maintenance
Bypass Breaker
1
Figure 5
2
5
4
3
Liebert GXT3 8000VA and 10,000VA rear view
Maintenance
Bypass
Switch
Liebert
IntelliSlot Port
Terminal Block
Communication
Cover for Power
Distribution Box
Connections
REPO Connection Block
USB Port
Output
Breaker
Switch
Input
Breaker
Switch
Knockouts
for Hardwired
Power Input
External Battery
Connector
8
Major Components
3.2
Removable Power Distribution Box
The UPS is shipped with a power distribution pack installed. This box contains the UPS input circuit
breaker.
Figure 6
Power distribution models for 5000VA and 6000VA models of Liebert GXT3
Maintenance
Bypass Breaker
Output Power Breakers
for Pigtails
Input Power
Breaker
Push Button Output
Power Breakers for Two
L5-20 Receptacles
(second push button
breaker obscured)
L14-30 Input
Power Connector
PD2-001 shown as example;
similar features on other distribution
boxes arranged differently
PD2-002
Receptacles: two 5-20R; two L6-20R
PD2-001
Receptacles: four 5-20; one
L14-30; one L6-30R
PD2-005
Receptacles: four L5-20R; two L6-30R
PD2-006
Receptacles: four L6-20R
PD2-003
receptacles: four 5-20R; two L6-30
PD2-004
Receptacles: four L5-20R; two L5-30R
9
Major Components
Figure 7
Power distribution models for 8000VA and 10,000VA models of Liebert GXT3
p ;
similar features on other
distribution boxes arranged differently
5-20R Output
Receptacles
Output Circuit Breaker
Switch for L6-30R Pigtail #1
L6-30ROutput
Receptacles
Push Button
Circuit Breakers
for 5-20R
Receptacles
2
5-20R Output
Receptacles
PD2-101
Receptacles: two L6-30; eight 5-20R
1
Output Circuit Breaker
Switch for L6-30R Pigtail #2
PD2-102
Receptacles:
four L6-20R
four 5-20R
PD2-105
Receptacles:
four 5-20R
two L5-30R
two L5-20R
PD2-103
Receptacles:
four L6-30R
four 5-20R
PD2-106
Receptacles:
four L6-20R
four L5-20R
PD2-104
Receptacles:
four 5-20R
two L6-30R
two L6-20R
3.3
Internal Battery Packs
The UPS has two internal battery packs behind a battery access door on the front of the unit. Each
internal battery pack is fitted with a connector to link to the UPS.
Figure 8
Internal battery pack features
Battery Handle
Battery Connector
Liebert GXT3 8000 and 10,000VA
battery packs shown;
5000 and 6000VA battery packs
have same features
Front of Battery Pack
10
What’s Included
4.0
WHAT’S INCLUDED
The Liebert GXT3 is shipped with the following items:
• Terminal Block Communication terminals
• Compact disc with:
• Liebert MultiLink
• Configuration program
• User manual (electronic version)
• USB cable, one; 2m (6-1/2 ft.) long
• Rack handles with mounting hardware
• Power Distribution Box, installed on Liebert GXT3
• Plastic tower set, one
• Warnings, safety instructions booklet and WEEE recycling sheet (ISO 14001 compliance)
NOTE
The Liebert GXT3 External Battery Cabinet shipping package includes one battery cabinet, two
spacers for the 5000 and 6000VA models and four spacers for the 8000 and 10000VA models
for tower configuration and one DC power cable.
11
Installation and Configuration
5.0
INSTALLATION AND CONFIGURATION
Do NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until
instructed to do so in 8.2 - Initial Startup and Electrical Checks.
Visually inspect the UPS for shipping damage. Report any damage to the carrier and your local dealer
or Emerson representative.
!
CAUTION
The UPS is heavy (see 12.0 - Specifications). Take proper precautions when lifting
or moving it.
Install the Liebert GXT3 indoors in a controlled environment, where it cannot be accidentally turned
off. Place it where air flows unrestricted around the unit. The installation location must be free of
water, flammable liquids, gases, corrosives and conductive contaminants. Maintain a minimum clearance of 100mm (4 inches) in the front and rear of the UPS. Maintain an ambient temperature range of
0 to 40°C (32 -104°F).
NOTE
UPS operation in sustained temperatures outside the range of 15-25°C (59°-77°F)
reduces battery life.
5.1
Install the Main Cabinet
The Liebert GXT3 may be installed in either a tower configuration or in a rack, depending on available space and use considerations. Determine the type of installation and follow the appropriate
instructions in either 5.1.1 - Tower UPS Installation or 5.1.2 - Rack-Mount UPS Installation.
5.1.1
Tower UPS Installation
To install the Liebert GXT3 as a tower:
1. Take the support bases out of the accessories bag (see Figure 9).
Figure 9
Support bases
Connectors
Spacers
Support Bases
2. If optional Liebert external battery cabinets will be connected to the Liebert GXT3, take out the
spacers shipped with the battery cabinet.
3. Connect the spacers and the support bases as shown in Figure 9. Each Liebert GXT3 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 GXT3.
a. Remove the front plastic bezel cover as shown in Figure 10.
Figure 10 Remove the front plastic bezel cover
Front Plastic
Bezel Cover
12
Installation and Configuration
b. Pull the operation and display panel gently, rotate it 90 degrees clockwise and snap it back
into position, as shown in Figure 11.
Figure 11
Rotate the operation and display panel
Operation and Display
Panel Rotated
Clockwise 90 Degrees
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 GXT3. 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 GXT3 and any battery cabinets on the support bases. Each Liebert GXT3 needs
two support assemblies, as shown in the lower half of Figure 1.
5.1.2
Rack-Mount UPS Installation
When using the Liebert GXT3 in a rack, the UPS must be supported by a slide kit, fixed rails or a
shelf.
When using the optional Adjustable Rack Mount Kit, you will use the following instructions. The figures accompanying 5.1.3 - Installing the Adjustable Rack-Mount Kit—Sold Separately shows
the positioning of the rack-mounting brackets. Emerson recommends taking the internal batteries out
of the UPS during rack installation. This will make the UPS cabinet lighter and easier to handle.
!
5.1.3
CAUTION
The Liebert GXT3 is heavy; see 12.0 - Specifications. The UPS must be installed as near the
bottom of a rack as possible. If placed too high, it can make the rack top-heavy and prone to
tipping over.
Installing the Adjustable Rack-Mount Kit—Sold Separately
This kit contains parts needed to mount several different models of UPS and external battery cabinets into EIA310-D standard four-post racks that are 18-32" deep (457-813mm). The weight limit per
pair of adjustable rack-mounting brackets is 91 kg (200lb).
Parts included are:
Item
Quantity
Rear bracket members
2
Front bracket members
2
Inner bracket members
2
M4 machine screws
16
M4 locking hex nuts
8
M5 machine screws
8
Tools needed for installation are:
• one Phillips screwdriver
• one 7mm wrench
13
Installation and Configuration
The adjustable rack-mounting brackets (Part#: RMKIT18-32) feature retaining latches to prevent
users from inadvertently sliding the UPS or battery cabinet out of the rack.
To install the rack mount brackets:
1. Unpack two rack-mounting bracket assemblies and
mounting hardware from this kit. Bracket assemblies are
interchangeable between left-hand or right-hand.
Remove inner member of each bracket assembly as shown
at right by extending it to its outermost position, depressing the retaining latch and then pulling the inner member
out of the bracket assembly.
2. Determine the height position inside the rack enclosure
where you want to mount the UPS or battery cabinet.
!
CAUTION
Reduce the risk of tipping the rack enclosure by
placing the UPS or battery cabinet in the lowest
possible rack position.
3. Install the rear member of each bracket assembly into the
rack enclosure with two M5 screws provided in this kit (see
figure at right). The return flanges on the bracket assembly
fit to the inside of rack mounting rails. Insert screws
loosely (finger-tight) into the top and bottom holes of the
return flange on the rear member. Extend the bracket
assembly by sliding the front member forward until it
touches the front rack mounting rail. Insert two M5 screws
loosely (finger-tight) into the top and bottom holes of the
return flange on each front member. Make sure that the
bracket assemblies are at the same mounting height on all
four (4) rack mounting rails.
4. Get eight M4 screws and eight M4 nuts from the hardware
pack in this kit. Each nut has a locking, nylon insert that
begins gripping the screw when it is halfway tight. Make
sure to tighten the nut and screw completely to ensure
locking action. Fasten the rear member and the front
member together using four screws and four nuts per
bracket assembly as shown in at right. For maximum
support, insert fasteners for each bracket assembly as far
apart as possible, depending on rack depth, while still
joining both members (see figures at right). Check
alignment of bracket assemblies and TIGHTEN ALL
SCREWS FROM Steps 2 and 3.
5. Prepare the UPS or battery cabinet (the “equipment”) for
rack mounting by following instructions in the equipment’s
user manual. The equipment may require additional parts
to be added or parts to be removed for rack mounting. After
it is prepared, lay the equipment in rack-mounting
position. Fasten the inner members from Step 1 to the
equipment on both sides as shown at right with eight M4
screws provided in the kit. Make sure retaining latch is
near the rear of the equipment as shown (see figure at
right).
Return
flanges
Retaining
Latches
Front
members
Inner
members
M5 screws
Front rack
mounting rails
M5 screws
M4 nuts
M4
screws
457mm
(18")
rack
depth
M4 nuts
M4 nuts
M4
screws
813mm
(32") rack
depth
M4 nuts
M4 screws
Retaining latch
UPS or battery
cabinet
Front
M4 screws
14
Installation and Configuration
6. If available, apply a bead of grease 1" (25mm) long at four
places inside the bottom, curved tracks of the front members
as shown below right. The grease will allow the equipment to
slide into the bracket assemblies more easily..
!
CAUTION
Lifting equipment into the rack may be a two-person
job, depending on the weight of the equipment.
Liebert recommends taking the internal batteries
out of the UPS during rack installation. This will
make the UPS cabinet lighter and easier to handle.
The Liebert GXT3 weighs 151 lb. (67kg). For the
weight of the UPS, see Table 7; for the battery
cabinet’s weight, see Table 11.
Factory-supplied rack handles are not intended to be
used to lift the UPS. The handles are intended to be
used to slide the UPS into and out of the rack.
Apply
grease
UPS or
battery
cabinet
Apply
grease
(inside)
Insert the UPS into the front members,
lift the front and push it into the rack..
7. Insert the equipment, with inner members attached in Step 5, into the bracket assemblies by
inserting the top and bottom edges of the inner members into the top and bottom curved tracks of
the front members and sliding the equipment into the rack (see figure at right). Ends of inner
members are tapered to allow the rear of the equipment to be angled upward before insertion, if
space allows.
Then the rear, bottom edges of the inner members can be placed into the front edge of the bottom
tracks and the front of the equipment can be tipped up so they are level to insert the top edges of
the inner members before sliding the equipment into the rack (see figure above right). The equipment should move smoothly into the bracket assemblies. If it does not, recheck the alignment of
the front and rear members from Steps 2 and 3.
8. Secure the front of the equipment to the rack mounting rails to prevent the equipment from
sliding out of position. If securing holes are provided on the front of the equipment that align with
the center holes on the return flange of the front members, you can use the four extra M5 screws
provided in the kit to secure the equipment. Otherwise, the equipment should be secured to the
front of the rack with four customer-supplied fasteners.
15
Installation and Configuration
5.2
External Battery Cabinet Installation
!
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within.
Ensure that the Liebert GXT3 is shut down and power has been disconnected before
beginning any work on or in the unit.
!
CAUTION
The external battery cabinet(s) are heavy (see Table 11). Take proper precautions when
lifting them.
Optional Liebert external battery cabinets may be connected to the UPS to provide additional battery
run time. External battery cabinets are designed to be placed on one side of the UPS in a tower configuration or stacked beneath the UPS in a rack configuration.
Figure 12 External battery cabinets connected to 6000VA Liebert GXT3
6000VA Liebert GXT3
Cable connects battery
cabinet to 6000VA
Liebert GXT3
Battery Cabinet
Second connector permits
adding more battery cabinets
to 6000VA Liebert GXT3
1. Inspect the external battery cabinet for freight damage. Report damage to the carrier and your
local dealer or Emerson representative.
2. Optional rack-mount handles are shipped with the external battery cabinet and may be installed
at this time if desired.
3. Securing hardware and slide rails are sold separately. Please contact your local dealer or
Emerson representative for these additional options and any assistance needed. Fasten the slides
into position with the screws per the instructions included with the slide rails.
4. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of
support base extensions ships with each external battery cabinet.
5. Put the UPS in Bypass Mode by pressing the bypass button on the front of the unit and holding it
about 2 seconds.
6. Verify the External Battery Cabinet breaker is in the Off position.
7. Connect the supplied external battery cabinet cable to the rear of the external battery cabinet,
then to the rear of the UPS.
8. Turn the External Battery Cabinet breaker to the On position.
9. Press the On button on the front of the UPS for 4 seconds to return the unit to Inverter Mode.
10. Verify the circuit breaker on the External Battery Cabinet is in the On position.
11. Use the included configuration program to program the UPS for the number of external battery
cabinets connected. Instructions for the configuration program are in 6.0 - Configuration
Program.
12. The UPS is now equipped with additional backup battery run time. For approximate battery run
times, refer to Table 14.
NOTE
When removing the External Battery Cabinet, the circuit breaker on the rear of the cabinet
must be turned off before disconnecting the cable.
16
Installation and Configuration
NOTE
If the UPS is to be shipped or stored for an extended time, the connector should be
disconnected. This will minimize any standby current drain on the batteries and help attain
their design life.
5.3
Connect Input/Output Power
WARNING
!
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within. Ensure that
the Liebert GXT3 is shut down and power has been disconnected before beginning any work
on or in the unit.
The Liebert GXT3-5000RT208, Liebert GXT3-6000RT208 and Liebert GXT3-6000RTL630 are
shipped with a power distribution box attached. The Liebert GXT3-8000RT208 and Liebert
GXT3-10000RT208 are shipped with a cover plate over the power distribution connector.
Follow the instructions below for removal and installation.
NOTE
Do not operate the UPS with the power distribution box removed. To shut off all power to this
box and to the load, utility input power must be disconnected.
5.3.1
Remove the Power Distribution Box from 5000 and 6000VA Models
1. Put the Liebert GXT3 in maintenance bypass by pressing the Standby/Manual Bypass button
while the UPS is in Utility (AC) Mode and holding the button for about 2 seconds. (For help, refer
to 8.4 - Put the Liebert GXT3 in Manual Bypass.)
2. Loosen the captive screw over the maintenance bypass breaker (see Figure 13 for the breaker’s
location).
3. Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
4.
5.
6.
7.
8.
Turn the output and input breakers Off.
Loosen other captive screws until the power distribution box releases.
Remove the power distribution box from the UPS and set it aside.
Loosen the screws over the plastic cover for the connector on the rear of the panel.
Slide the plastic cover over the connector and tighten the screws.
Figure 13 Power distribution box removal from 5000 and 6000VA models
Extract these four
captive screws
Pigtails
removed for
clarity
Maintenance Bypass Breaker
17
Installation and Configuration
5.3.2
Remove the Power Distribution Cover from 8000 and 10,000VA Models
1. Shut down the Liebert GXT3 by pressing the Standby/Manual Bypass button twice while the UPS
is in Bypass Mode, each time holding the button down for about 2 seconds. (For help, refer to 8.5 Shut Down the Liebert GXT3.)
2. Loosen the captive screw over the maintenance bypass breaker (see Figure 5 for the breaker’s
location).
3. Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
4.
5.
6.
7.
Turn the output and input breakers Off.
Support the power distribution box and remove the two screws at the top of the box.
Remove the cover or power distribution box from the UPS and set it aside.
If removing a power distribution box, carefully pull apart the power distribution box connector
and the UPS connector.
Figure 14 Power distribution box removal from 8000 and 10,000VA models
Extract screws at these places
Pigtails
removed for
clarity
Tabs slip into slots on UPS
5.3.3
Install the Power Distribution Box on 5000 and 6000VA Models
1. Align the connectors and press the power distribution box onto the UPS.
2. Hold the box firmly against the UPS and tighten the captive screws except the one over the
maintenance bypass breaker.
3. Turn the output and input breakers On.
4. Start the UPS according to startup instructions.
5. Verify that the UPS lamp is illuminated.
6. Turn the maintenance bypass breaker Off.
7. Insert the maintenance bypass cover behind the captive screw and tighten the screw.
NOTE
The maintenance bypass breaker cover must be installed behind the captive screw and the
screw must be tightened for the UPS to operate in inverter mode.
18
Installation and Configuration
5.3.4
Install the Power Distribution Box on 8000 and 10,000VA Models
1. With the cover or distribution box removed, press the UPS and distribution box connectors
together. Ensure that the connectors are fully seated.
2. Align the screw holes and press the power distribution box onto the UPS, making sure that the
tabs at the bottom of the box fit into the slots on the UPS.
3. Attach the box to the UPS by installing screws into the two holes at the top of the box.
4. Tighten the screws.
5. Turn the output and input breakers On.
6. Start the UPS according to startup instructions.
7. Verify that the UPS lamp is illuminated.
5.3.5
Distribution Box Electrical Connections
Electrical connections are made through a removable power distribution box that attaches to the rear
of the UPS.
• PD2-HDWR, PD2-HDWR-MBS, PD2-001, PD2-002, PD2-003, PD2-004, PD2-005 and PD2-006
models fit the 5000 and 6000VA models of the Liebert GXT3
• PD2-L630 fits the GXT3-6000RTL630
• PD2-101, PD2-102, PD2-103, PD2-104, PD2-105 and PD2-106 models fit the 8000 and 10,000VA
models of the Liebert GXT3
The installer must provide an upstream branch circuit breaker. The input circuit breaker on the distribution box and the output circuit breaker on the rear of the power distribution box disconnect all
power between the main cabinet and the distribution box.
Models equipped with a manual bypass breaker pass bypass power directly to the bypass breaker
from the input terminal block. The input circuit breaker on the distribution box does not disconnect
power from the manual bypass breaker.
Table 1
Branch circuit breaker ratings
Unit Rating
5000VA
6000VA
8000VA
10,000VA
Maximum Breaker Rating
D Type 30A Long Delay
D Type 60A Long Delay
Figure 15 Distribution box electrical connections diagram
UPS
Input
CB
UPS
Output
CB
Input
CB
Maintenance
Bypass Breaker
Input
Output
Indicator Indicator
Utility
Maintenance
Bypass Breaker
Output
Distribution
POD
Input
Output
Indicator Indicator
Utility
Input
External
Branch CB
19
Output
Terminal
Block
Optional
Output
Distribution
Plate
Input
External
Branch CB
Distribution Box Electrical Connections
for 5000 and 6000VA Models
Output
CB
Distribution Box Electrical Connections
for 8000 and 10,000VA Models
Installation and Configuration
Terminal Block Connections
Conduit entry holes are provided on the rear and side of the box. Input and output wiring should not
share the same conduit. Emerson recommends using strain relief when installing the wire.
Table 2
Electrical specifications
Recommended
(Maximum) External
Overcurrent Protection
Recommended Wire
(Including ground wire)
(75°C copper wire)
Maximum Wire
Accepted by
Terminal Block
GXT3-5000RT208
GXT3-6000RT208
GXT3-6000RTL630
30A
10AWG (4mm2)
8AWG (6mm2)
GXT3-8000RT208
GXT3-10000RT208
60A
6AWG (10mm2)
4AWG (16mm2)
UPS Model
Terminal
Tightening
Torque
20 in-lb
(2.26 Nm)
Figure 16 Terminal block connections
Liebert GXT3-5000 and 6000RT208
L2
N
L1
L2
OUTPUT
N
L1
INPUT
Liebert GXT3-8000 and 10,000RT208
L2
N
L1
L2
OUTPUT
N
L1
INPUT
NOTE
1. Emerson recommends installing a UL489-approved breaker upstream of unit.
2. The installer must provide circuit breaker protection according to local codes. The utility
disconnect should be within sight of the UPS or have appropriate an appropriate lock-out.
Maintain service space around the UPS or use flexible conduit.
3. The installer must provide output distribution panels, circuit breaker protection or
emergency disconnects according to local codes. Output circuits must not share a common
conduit with any other wiring.
20
Installation and Configuration
5.4
IT Power System Configuration—Liebert GXT3-6000RTL630 Only
!
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within. Ensure that
the Liebert GXT3 is shut down and power has been disconnected before beginning any work
on or in the unit.
1. Remove screws on the IT Power System Access Cover as shown in Figure 17.
2. Disconnect the connectors as shown in figure.
3. Reinstall IT Power System Access Cover and screws.
Figure 17 Remove cover from IT Power System Connectors compartment
Remove Screws
IT Power System
Connectors
21
Configuration Program
6.0
CONFIGURATION PROGRAM
The final step of installation may require custom configuration of your UPS using the enclosed configuration program. Some configuration settings may be changed only while the UPS is off. These should
be set before the UPS is put into full-time service powering the critical load.
For most users operating with 230VAC and with no external batteries, the factory default settings
will be adequate.
6.1
Configuration Program Features
•
•
•
•
•
•
•
Select L-N output voltages to match local voltages.
Enable/Disable Auto-Restart.
Select frequency converter operation with a fixed output frequency of 50 or 60 Hz.
Set the Low Battery Warning alarm time from 2 to 30 minutes.
Enable/Disable the Auto-Battery test.
Set the Auto-Battery test to 7, 14, 21 or 28 days.
Specify the number of external battery cabinets connected to the UPS to adjust the remaining run
time calculations reported by Liebert software products.
• Modify the shutdown setting of the terminal block (for information on pin assignments, see
Table 2).
6.1.1
What You Will Need
In addition to the Liebert GXT3 UPS, you will need the configuration program CD and USB cable
included in the UPS accessory box. A Windows 95® or later computer, desktop or laptop, is also
required to set up and run the configuration program.
22
Controls and Indicators
7.0
CONTROLS AND INDICATORS
Figure 18 Liebert GXT3 control panel
Battery Level Indicators
Load Level
Indicators
Upper indicator for L1
Lower for L2
Fault Indicator
Bypass Indicator
AC Input Indicator
Inverter Indicator
Liebert® GXT3
AC Power System
10000VA
On/Alarm Silence/Manual
Battery Test Button
Standby/Manual Bypass Button
7.1
Battery Indicator
ON/Alarm Silence/Manual Battery Test Button
This button controls output power to connected load(s) and has three functions:
• ON
• Alarm Silence
• Manual Battery Test
ON - Pressing this button for four seconds will start the UPS.
Alarm Silence - To silence alarms, press this button for at least one second. After the
alarm is silenced, the Liebert GXT3 will reactivate the alarm system to alert of additional problems.
NOTE
The LOW BATTERY and BYPASS reminder alarms CANNOT be silenced.
Manual Battery Test - To initiate a manual battery test, press the ON button for at least one second
while operating from utility power with no alarm conditions present.
• If only three of the five Battery LEDs illuminate, allow the UPS to recharge the batteries for 24
hours.
• After 24 hours, retest the batteries.
• After the batteries have been retested, if only three of the five Battery LEDs illuminate, contact
your local dealer, Emerson representative or Emerson Channel Support.
7.2
Standby/Manual Bypass Button
This button controls output power to connected load(s) and has dual functions:
Standby and Manual Bypass.
NOTICE
Pressing the Standby/Manual Bypass button once will transfer the load to bypass
power and the load will be unprotected from disturbances in utility supply. Pressing
the Standby/Manual Bypass button twice within 4 seconds while on Bypass will cut
off power to the output sockets and connected loads. Perform all necessary shutdown
procedures on connected loads before pressing this button twice.
23
Controls and Indicators
7.3
Load Level Indicators (4 Green, 1 Amber)
The load level indicator is composed of five sets of LED bars that illuminate to indicate the relative
load on the UPS output in 25% increments (±5%). The load level indicator will illuminate as shown in
Figure 19.
The load level indicators display the approximate electrical load placed upon the UPS at all times.
Figure 19 Load level indicators
0 - 25%
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
ON
ON
26 - 50%
51 - 75%
The Liebert GXT3 has
load level indicators for
Line 1 and for Line 2. One
set of indicators shown
for clarity.
76 - 100%
Overload
7.4
Battery Level Indicators (5 Green)
The battery level indicator is composed of five sets of LED bars that illuminate and flash to indicate
the battery capacity level. The Liebert GXT3 battery capacity level is shown in 20% increments (±5%).
The battery level indicators will illuminate as shown in Figure 20
The battery level indicators display approximate battery capacity at all times.
The Liebert GXT3 is equipped with automatic and remote battery test features. The default setting is
for the automatic test to occur every 14 days (this option is user-configurable) if utility power has not
been interrupted. Should the battery fail this test, the red Fault indicator LED along with the A and
C diagnostic LEDs will illuminate and an alarm will sound (refer to 11.0 - Troubleshooting). The
remote test feature functions with Liebert MultiLink and can remotely initiate the battery test.
Figure 20 Battery level indicators
Charging
Discharging
0 - 20%
Flash OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
Flash OFF
OFF
ON
ON
ON
OFF
OFF
21 - 40%
ON
Flash
ON
ON
41 - 60%
61 - 80%
ON
ON
ON
Flash OFF
ON
ON
ON
ON
OFF
81 - 100%
ON
ON
ON
ON
Flash
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
Fully
Charged
24
Controls and Indicators
7.5
UPS Status Indicators
UPS status is indicated by five symbols: fault indicator, AC input indicator, battery indicator,
inverter indicator and bypass indicator. Table 3 shows the symbols and their meanings.
Table 3
UPS status indicators
UPS Status
Indicator
Fault Indicator
Icon
Color
Red
Description
On if the UPS has detected a fault; Off if there is no fault
AC input Indicator
Green
On when the utility input power is normal; Off during utility failure;
flashing when utility power is outside specifications
Battery Indicator
Amber
On when the battery is supplying power; Off when the battery is not
supplying power
Inverter Indicator
Green
On when the inverter is supplying power; Off when the inverter is not
supplying power
Bypass Indicator
Amber
On when the bypass is supplying power; Off when the bypass is not
supplying power; flashing when utility power is outside specifications
25
Operation
8.0
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 the utility power from the UPS.
NOTE
The Liebert GXT3’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.
8.1
Startup Checklist for the Liebert GXT3
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.
8.2
Initial Startup and Electrical Checks
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Verify that the Input/Output circuit breakers are off.
During initial system checks, disconnect all loads (open load disconnects).
Inspect all wiring, cables and connection.
If external battery cabinets are used, verify that the battery interconnect cables are fully inserted
in the sockets.
Place the manual bypass breaker in BYPASS position.
Turn on the branch circuit disconnect to apply voltage to the input terminal block.
Using a voltmeter, verify the expected L1-N (L2) voltage.
Verify that the same voltages appear at the Output terminals. The Bypass lamp by the switch will
light.
After verifying proper input voltage to the UPS terminal block, turn off the branch circuit power,
close all access panels to the distribution box and reapply input power.
Close the Input circuit breaker located on the distribution box. The green AC INPUT lamp should
illuminate on the front panel.
Press the ON button and hold it for four seconds. After several seconds, the UPS ON lamp will
turn on continuously. If the batteries are determined to be charged above 80%, an automatic
battery test will run for about 15 seconds.
Close the Output circuit breaker on the rear of the power distribution box. The light by the input
breaker will illuminate.
Return the breaker to the Inverter position. The output terminal block will be powered at this
time.
Connect all loads for normal operation.
26
Operation
8.3
Manual Battery Test
To initiate a manual battery test, press the On/Alarm Silence/Manual Battery Test button for at least
half a second while the UPS is operating from utility power with no alarm conditions present.
• If only the first two of the five LED segments illuminate, 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 only two of the five Battery LEDs illuminate, contact
your local Emerson representative or Emerson Network Power Channel Support.
• If none of the five Battery LEDs illuminate during a manual battery test, check the battery connection and allow the UPS to recharge the batteries for 1 hour, then initiate a manual battery test
again.
• If none of the five Battery LEDs illuminate during the second manual battery test, replace batteries and contact your local Emerson representative or Emerson Channel Support.
8.4
Put the Liebert GXT3 in Manual Bypass
Press the Standby/Manual Bypass button and hold it for about 2 seconds while the UPS is in Utility
(AC) Mode. The UPS will transfer the connected loads to the internal bypass. If the internal bypass is
not available because of utility 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 11.0 - Troubleshooting.)
8.5
Shut Down the Liebert GXT3
1. Transfer the UPS to manual bypass by pressing the Standby/Manual Bypass button and holding
it for about 2 seconds.
If manual bypass is not available, disregard the first step.
2. Press the Standby/Manual Bypass button twice within four seconds, each time holding it for
about two seconds.
Power to the connected loads is now Off.
8.6
Disconnecting Input Power from the Liebert GXT3
1. After the UPS has been shut down as detailed in 8.5 - Shut Down the Liebert GXT3, turn off
the Output Circuit Breaker.
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.
8.7
Maintenance Bypass
Maintenance Bypass Mode is used when maintenance or replacement is required. To place the unit in
Maintenance Bypass:
1. Place the UPS on internal bypass. This may be done by either of the following methods:
a. Press the Off button on the front panel one time.
b. Slide the bracket away from the manual bypass breaker on the rear of the UPS. This requires
loosening the captive screw and sliding the bracket up and away from the Manual Bypass
breaker.
2. Move the Manual Bypass breaker on the rear of the UPS to the bypass position. This requires
loosening the captive screw and sliding the bracket up and away from the Manual Bypass
breaker.
27
Communication
9.0
COMMUNICATION
9.1
Communication Interface Port
The Liebert GXT3 UPS has a terminal block on the rear of the UPS unit. Several signals are provided
on this port and are assigned as follows.
9.2
Terminal Block
The terminal block includes eight pins, as shown in Figure 21.
Figure 21 Terminal block communication pin layout
9.2.1
1
2
3
4
Low Battery
Warning
On-Battery
Warning
Any Mode
Shutdown
Battery Mode
Shutdown
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 the pins in Set 3.
• Remote Any Mode Shutdown can be performed using a switch connected to the pins in Set 3 and
mounted at a remote location.
Activation of the Any Mode Shutdown will be logged as an event in the event history log.
NOTE
Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown.
The current limited source for the optocoupler (+12VDC, 50mA) will be available from UPS.
The connection to UPS for remote connection will be via terminal block connector.
Any Mode Shutdown wiring must conform to all national, regional and local wiring codes and
laws.
!
9.2.2
WARNING
When the Auto-enable output option is selected and the UPS output is disabled using the pins
in Set 3, the Liebert GXT3’s output can turn On automatically and without warning if the
connection of the pins in Set 3 is changed.
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 the pins in Set 4.
• Remote Battery Mode Shutdown can be performed using a switch connected to the pins in Set 4
and mounted at remote location.
28
Communication
Activation of the Battery Mode Shutdown will be logged as an event in the event history log.
NOTE
Remote Power Off will be performed by NO contact.
The current limited source for the optocoupler (+12VDC, 50mA) will be available from UPS.
The connection to the Liebert GXT3 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 utility power returns
during this countdown, the Liebert GXT3 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.
9.2.3
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.
9.2.4
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: 5V
• Working Voltage Range: 4.5-10V
• Rated Current: 30ma
9.3
UPS IntelliSlot Communication Cards
The Liebert IntelliSlot port accepts three optional cards:
• Liebert IntelliSlot SNMP Card
• Liebert IntelliSlot Relay Card
• Liebert IntelliSlot 485 Card.
The Liebert IntelliSlot SNMP 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 built-in shutdown for AS/400 systems.
The Liebert IntelliSlot 485 Card is used to connect the UPS and computer system.
Follow instructions provided with the Liebert IntelliSlot card to configure Liebert MultiLink, the UPS
or any additional ancillary product for the Liebert GXT3. These instructions are available at
multilink.liebert.com
29
Communication
9.3.1
Liebert MultiLink
Liebert MultiLink monitors the UPS continuously and can shut down a computer or server in the
event of an extended power failure.
Liebert MultiLink can also be configured for use without the USB cable when the Liebert IntelliSlot
SNMP/Web card is installed in the UPS. Additionally, Liebert MultiLink can be configured to coordinate shutdown across the network with other computers running Liebert MultiLink when you purchase a Liebert MultiLink License Kit. For more information about the Liebert IntelliSlot SNMP/Web
Card and Liebert MultiLink License Kits, visit our Web site (www.liebert.com) or contact your local
dealer or Emerson representative.
Several option cards are available for use in the Liebert IntelliSlot port of the Liebert GXT3. The Liebert IntelliSlot SNMP/Web Card provides SNMP and Web-based monitoring and control of the UPS
across the network.
The Liebert IntelliSlot MultiPort 4 Card allows installing Liebert MultiLink software on four computers and coordinate shutdown in the event of a power failure.
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom wired applications
and delivers support for built-in shutdown for AS/400 systems.
CAUTION
!
9.4
To maintain safety (SELV) barriers and for electromagnetic compatibility, signal cables
should be shielded and run separate from all other power cables, where applicable.
Remote Emergency Power Off
The UPS is equipped with a Remote Emergency Power Off (REPO) connector.
The user must supply a means of interfacing with the REPO circuit to allow disconnecting the UPS
input feeder breaker to remove all sources of power to the UPS and connected equipment to comply
with national and local wiring codes and regulations.
REPO switch connection diagram
UPS ships with REPO jumper
installed allowing the UPS
to operate
1
Opening the REPO connection will disable the UPS.
Manual restart using the front panel is required after
the REPO connection is closed again.
2
1
2
Normally closed switch system
(fail-safe)
!
CAUTION
To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables should
be shielded and run separately from power cables.
30
Maintenance
10.0 MAINTENANCE
This section describes replacing the internal battery pack, precautions, checking the Liebert GXT3’s
status and checking UPS functions.
10.1
Replacing the Internal Battery Pack
The Liebert GXT3 is designed to allow the user to replace the internal battery pack safely. Read the
safety cautions before proceeding. Contact your local dealer or Emerson representative to obtain the
part number and pricing of the appropriate replacement battery pack.
10.1.1 Battery Replacement Procedures
1. Gently remove the front plastic bezel cover from the UPS.
2. Loosen and remove the six screws on the battery door, as shown in Figure 22.
3. Lay the battery door and screws aside for reassembly.
Figure 22 Removing the front plastic bezel cover and battery door
Battery Door
Screws, 6
Front Bezel
8000VA / 10,000VA model shown;
5000VA & 6000VA model arrangement is
the same except smaller
4. Gently pull the battery wires out and disconnect the battery plugs and battery receptacles, as
shown in Figure 23.
Figure 23 Disconnecting the battery plug and battery receptacle (front view)
8000 / 10,000VA model
shown; 5000 / 6000VA
model arrangement is
the same except smaller
Battery Connector
Battery Receptacle
Battery Connector
Battery Receptacle
5. Grasp the battery handle and pull one of the internal battery packs out of the UPS, as shown in
Figure 24.
Repeat this step if both battery packs will be replaced. Each model has two battery packs
31
Maintenance
Figure 24 Pulling out the battery packs
8000VA / 10,000VA model
5000 & 6000 VA models
Internal
Battery
Pack
Internal
Battery
Pack
(one of 2)
Battery
Handle
Battery
Handle
Pull Out with Battery Handle
Each model has two
battery packs
Pull Out with Battery Handle
6. Unpack a new internal battery pack. Take care not to destroy the packing.
Compare the new and old internal battery packs to make sure they are the same type and model.
If they are the same, 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. Repeat Steps 6 and 7 if replacing both battery packs. Each model has two battery packs
9. Reconnect the battery plugs and battery receptacles.
10. Gently push the battery wire into the UPS battery compartment.
11. Reattach the front battery door with the six screws.
12. Reattach the front plastic bezel cover to the UPS.
NOTE
The internal battery pack is hot-swappable. However, caution should be exercised because the
load is unprotected from disturbances and power failures during this procedure. 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.
10.2
Battery Charging
The batteries are valve-regulated, nonspillable, lead acid and should be kept charged to attain their
design life. The Liebert GXT3 charges the batteries continuously when it is connected to the utility
input power.
If the Liebert GXT3 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.
10.3
Precautions
Although the Liebert GXT3 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 GXT3 before cleaning it.
Wear rubber gloves and boots.
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 UPS.
Do not place the Liebert GXT3 power cord where it might be damaged.
32
Maintenance
10.4
Checking UPS Status
Emerson recommends checking the UPS operation status every six months.
• Check whether the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an alarm?
• Check whether 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 whether 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.
10.5
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 buzzer 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 a 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.
10.6
Replacing the Power Module on 8000 and 10,000VA models
!
CAUTION
The UPS must be switched to manual bypass before personnel begin to replace the power
module.
NOTICE
During the procedure, the connected load will not be protected from power disturbances, such
as spikes, sags and failure.
To remove the UPS power module without shutting off power to the connected load:
1. Place the UPS on internal bypass. This may be done by any of the three following methods:
a. Press the Off button on the front panel one time.
b. Slide the bracket away from the manual bypass switch on the rear of the UPS; this requires
loosening the captive screw and sliding the bracket away from the manual bypass switch.
c. Remove the front grille covering the power module.
2. Move the manual bypass breaker on the rear of the UPS to the bypass position; this requires
loosening the captive screw and sliding the bracket away from the manual bypass switch (see
Figure 7).
3. Open the input circuit breaker on the rear of the UPS (see Figure 7).
4. Open the output circuit breaker on the rear of the UPS (see Figure 7).
5. Remove the top two front plastic bezels by pulling them forward.
6. Remove the power module cover grille and the battery cover grille with the screws securing them
to the frame.
7. Disconnect the slotted battery connectors from the internal battery packs.
8. If additional external batteries are used, disconnect the two external battery connectors.
9. Slide power module restraint lever up out of the locked position.
10. Slide the power module out the front, supporting its weight as it is withdrawn.
33
Maintenance
Figure 25 Removing power module from Liebert GXT3 8000 and 10,000VA models
Power module
pulled part of
the way out of
an 8000 or
10,000VA unit
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Insert the replacement UPS power module.
Slide the power module restraint lever back into the locked position.
Reconnect the slotted internal battery connectors.
Reconnect the external battery cables, if used.
Reattach both front cover grilles.
Reattach the front plastic bezels.
Close the input circuit breaker on the rear of the UPS (see Figure 7).
Close the output circuit breaker on the rear of the UPS (see Figure 7).
Move the bypass breaker on the rear of the UPS back to the INVERTER position (see Figure 7).
Slide the bracket back next to the manual bypass breaker and tighten its thumbscrew.
Press the On button on the front panel one time to return the UPS to Normal Mode operation (see
Figure 18).
NOTE
The power module restraint lever must be fully engaged for the UPS to operate
in Normal Mode.
34
Troubleshooting
11.0 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.
11.1
UPS Symptoms
The following symptoms indicate the Liebert GXT3 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.
11.1.1 Indicators
In addition to the fault indicator being illuminated, one or more of LED segments of battery level indicator will also be illuminated to provide a diagnostic aid to the user, as shown in Figure 26. The
descriptions are listed in Table 4.
Figure 26 Battery level indicator
A
Table 4
B
C
D
E
Indicator descriptions
Indicator
A-E
A
Diagnosis/Audible alarm
On bypass from output overload (half-second beep every half-second)
On bypass due to overtemperature condition (1-second beep every 4 seconds)
B
On bypass due to DC bus overvoltage (1-second beep every 4 seconds)
C
On bypass due to DC/DC power supply failure (1-second beep every 4 seconds)
D
PFC failure (1-second beep every 4 seconds)
E
On bypass due to inverter failure (1-second beep every 4 seconds)
A&B
UPS Failure (includes dual-fan failure, single-fan failure under certain conditions and battery
charger failure) and continuous alarm
A&C
UPS failed battery test (2-second beep every 60 seconds)
A&D
Maintance bypass switch on (continuous)
A&E
Bypass feedback (1-second beep every 4 seconds)
B&C
REPO (one quarter-second beep at quarter-second intervals)
B&E
Short circuit on the output
C&E
UPS shutdown by command from communication (USB port or Liebert IntelliSlot port) (no
audible)
Utility LED flash
L-N reverse
Battery Indicator
Flashing
Internal battery source not available (continuous horn); check battery connection, power down
and reboot UPS
Bypass Indicator
Flashing
Utility power voltage or frequency is out of tolerance; bypass is unavailable
A - E indicators are shown in Figure 26
35
Troubleshooting
11.1.2 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 5.
Table 5
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 60 seconds
Battery loss
Continuous
Wiring problem
(loss of proper grounding for UPS)
Continuous
Bypass reminder
1-second beep every 2 minutes
11.2
Troubleshooting
In the event of an issue with the UPS, refer to Table 6 to determine the cause and solution. If the
fault persists, contact Emerson Channel Support.
Table 6
Troubleshooting table
Problem
Cause
Solution
UPS is short-circuited or
overloaded
Ensure UPS is Off. Disconnect all loads and ensure
nothing is lodged in output receptacles. Ensure loads
are not defective or shorted internally.
UPS is not plugged in
UPS is operating from battery mode. Ensure UPS is
securely plugged into the wall receptacle.
UPS input protection fuse has
blown/opened
UPS is operating from battery mode. Save data and
close applications. Replace UPS input fuse, then restart
UPS.
Utility power is out of tolerance
UPS is operating from battery mode. Save data and
close applications. Ensure utility supply voltage is within
acceptable limits for UPS.
Batteries are not fully charged
Keep UPS plugged in continuously at least 24 hours to
recharge batteries.
UPS is overloaded
Check load level indicator and reduce the load on the
UPS.
Batteries may not be able to
hold a full charge due to age
Replace batteries. Contact your local dealer, Emerson
representative or Emerson Channel Support for
replacement battery kit.
UPS is overloaded or load is
faulty
Check load level indicator and remove non-essential
loads. Recalculate the load and reduce number of loads
connected to UPS. Check load for faults.
Fault and Bypass indicators
and diagnostic A indicator are
illuminated
UPS has been shut down due
to temperature condition; load
is on bypass power
Ensure UPS is not overloaded, ventilation holes are not
blocked and room ambient temperature is not
excessive. Wait 30 minutes to allow UPS to cool, then
restart UPS. If UPS cannot restart, contact your local
dealer, Emerson representative or Emerson Channel
Support.
Fault and Bypass indicators
and diagnostic B indicator are
illuminated
UPS internal DC bus
overvoltage
UPS requires service. Contact your local dealer,
Emerson representative or Emerson Channel Support.
UPS fails to start when the
On/Alarm Silence/Manual
Battery Test button is pressed
Battery indicator is illuminated
UPS has reduced battery
backup time
Fault and Bypass indicators
and all LED segments of
battery level indicator are
illuminated
36
Troubleshooting
Table 6
Troubleshooting table (cont’d)
Problem
Cause
Solution
Fault and Bypass indicators
and diagnostic C indicator are
illuminated
UPS DC/DC fault
UPS requires service. Contact your local dealer,
Emerson representative or Emerson Channel Support.
Fault indicator and diagnostic
D indicator are illuminated
UPS PFC (Power Factor
Correction Circuit) fault
UPS requires service. Contact your local dealer,
Emerson representative or Emerson Channel Support.
Fault and Bypass indicators
and diagnostic E indicator are
illuminated
UPS inverter fault
UPS requires service. Contact your local dealer,
Emerson representative or Emerson Channel Support.
Fault indicator and diagnostic
A and C indicators are
illuminated
UPS failed the battery test
Replace batteries. Contact your local dealer, Emerson
representative or Emerson Channel Support.
Fault and Bypass indicators
and diagnostic C and E
indicators are illuminated
UPS has been shut down by a
command from the
communications port(s)
Your UPS has received a signal or command from the
attached computer. If this was inadvertent, ensure the
communication cable used is correct for your system.
For assistance, contact your local dealer, Emerson
representative or Emerson Channel Support.
Fault indicator and diagnostic
A and B indicators are
illuminated
UPS failure (includes dual-fan
failure, single-fan failure under
certain conditions and battery
charger failure) and continuous
alarm
Ensure fan is not blocked up. If the fault is not removed,
contact your local dealer, Emerson representative or
Emerson Channel Support.
AC input indicator is flashing.
UPS detected a line-to-neutral
reversal or a loss of proper
grounding for UPS; continuous
horn and UPS cannot start up
in standby status. This is active
only when power is first
applied to the input. Once the
UPS is running, the AC input
indicator will flash, unless the
input wiring is correctly
changed.
Contact a qualified electrician to verify site wiring.
Battery indicator is flashing.
Battery source is not available;
continuous horn.
Check battery connections, completely power down and
restart UPS.
NOTE: If the battery circuit opens while the UPS is
running, it will be detected when the next battery test is
performed.
Bypass indicator is flashing.
Because the voltage or
frequency is outside
acceptable limits, the bypass is
disabled.
The AC input powers the PFC input and serves as the
bypass source. If the AC is present but the voltage or
frequency exceeds the acceptable range for safe
operation with a load, the bypass will be disabled and
this 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 on the
top panel of the Liebert GXT3.
37
Specifications
12.0 SPECIFICATIONS
Table 7
UPS specifications—5000, 6000, 8000 and 10,000 models
Model Number
GXT3-5000RT208 GXT3-6000RT208 GXT3-8000RT208 GXT3-10000RT208
Model Rating
4000W/5000VA
4800W/6000VA
7200W/8000VA
9000W/10000VA
Dimensions, Rack Mount, W x D x H
Unit, in. (mm)
16.9 x 26.1 x 6.8 (430 x 662 x 173)
16.9 x 26.5 x 10.3 (430 x 672 x 261)
Shipping, in. (mm)
26.1 x 33.1 x 13.2 (662 x 842 x 336)
24.1 x 32.8 x 16.7 (612 x 832 x 424)
Unit, lb (kg)
56.2 (25.5)
78.3 (35.5)
Shipping, lb (kg)
70.5 (32)
92.6 (42)
Weight lb (kg)
Input AC Parameters
Nominal Operating Frequency
Factory Default VAC
L1-L2 Factory Default Input Phase Angle
Allowable Input Phase Angle
50 or 60Hz (Factory Default is 60Hz)
120/208VAC at 120 degrees
120/208VAC at 120 degrees
120 degrees
120 degrees
120, 180, 240 degrees, auto-sensing on application of alternating current
(Restrictions for L-N voltages other than 120VAC)
Factory Default L1-N, L2-N VAC
User Configurable L1-N, L2-N VAC
120 VAC nominal
100/110/115/120/127 VAC (can be modified with configuration program)
Input Frequency w/o Battery Operation
Input Power Connection
40 - 70 Hz
Hardwire Terminal Block 3W + G (L-L-N-G)
L1-N, L2-N Maximum Allowable VAC
150VAC
Output AC Parameters
Factory Default VAC
120/208VAC @ 120 degrees
L1-L2 Factory Default Output Phase Angle
Allowable Output Phase Angle
120 degrees
120, 180, 240 degrees, auto-sensing on initial application of input AC
Factory Default L1-N, L2-N VAC
120VAC nominal
User Configurable L1-N, L2-N VAC
100/110/115/120/127VAC, ±2%
L1-N, L2-N, Operating Load Range
105% to 130%
1 Minute
131% to 150%
10 seconds
151% to 200%
1 second
>200% (impact load)
At least 5 cycles
Bypass Protection Limits
Disable Bypass Operation
Re-Enable Bypass Operation
Disable Bypass Operation
If input voltage exceeds ±15% of the nominal voltage
If input voltage returns to within ±10% of nominal output voltage
When the input frequency prevents synchronous operation
Environmental
Operating Temp, °F (°C)
32 to 104 (0 to 40); see Table 9 - Operating temperature parameters
Storage Temp, °F (°C)
5 to 122 (-15 to 50)
Relative Humidity
Operating Elevation
0% to 95%, non-condensing
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Audible Noise less than 55dBA at 3.2ft. (1m) rear; less than 50dBA at 3.2ft. (1m) front and sides
Agency
Safety
RFI/EMI
UL 1778, c-UL Listed (suitable for computer room applications)
FCC Part 15, Subpart B, Class A, FCC Class A
Surge Immunity
IEEE/ANSI C62.41 Category A & B
Transportation
ISTA Procedure 1A
38
Specifications
Table 8
UPS specifications—Liebert GXT3-6000RTL630
Model Number
GXT3-6000RTL630
Model Rating
4200W/6000VA
Dimensions, Rack Mount, W X D X H, in. (mm)
Unit
16.9 x 22.6 x 8.5 (430 x 574 x 217)
Shipping
20.9 x 29.3 x 14.8 (530 x 745 x 377)
Weight, lb (kg)
Unit
51.8 (23.5)
Shipping
66.1 (30)
Input AC Parameters
Nominal Operating Frequency
50 or 60Hz (Factory Default, 60)
Factory Default VAC
208VAC
208/220/230/240VAC
(may be modified with configuration program)
User Configurable VAC
Operating Voltage Range Without Battery Operation
176 – 280VAC
Maximum Allowable VAC
280VAC
Input Frequency Without Battery Operation
40 - 70Hz
Input Power Connection
L6-30P Plug (on PD-L630 power distribution box)
Output AC Parameters
Factory Default VAC
208
Output Connections
(2) L6-20R and (2) L6-30R on 12" (300mm) cords
(on PD-L630 power distribution box)
Frequency
50Hz or 60Hz, Nominal
Waveform
Sinewave
105% to 130%
1 Minute
131% to 150%
10 seconds
151% to 200%
1 second
Duration Inverter Will Support Rated Load
>200% (impact load)
At least 5 cycles
Bypass Protection Limits
Disable Bypass Operation
Re-Enable Bypass Operation
Disable Bypass Operation
If input voltage exceeds ±15% of the nominal voltage
If input voltage returns to within ±10% of nominal output voltage
When the input frequency prevents synchronous operation
Environmental
Operating Temp, °F (°C)
32 to 104 (0 to 40); see Table 9
Storage Temp, °F (°C)
5 to 122 (-15 to 50)
Humidity
Operating Elevation
0% to 95% Relative Humidity, non-condensing
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Less than 55dBA at 3.2ft. (1m) rear;
Less than 50dBA at 3.2ft. (1m) front and sides
Audible Noise
Agency
Safety
UL 1778, c-UL Listed (suitable for computer room applications)
EMI/EMC
FCC Class A
ESD
EN61000-4-2
Radiated Susceptibility
EN61000-4-3
Electrical Fast Transient
EN61000-4-4
Surge Immunity
EN61000-4-5
Transportation
ISTA Procedure 1A
39
Specifications
Table 9
Operating temperature parameters
pf @30°C ±3°C
(pf @ 86°F ±5.4°F)
pf @40°C ±3°C
(pf @ 104°F ±5.4°F)
GXT3-5000/6000RT208
0.8pf
0.8pf
GXT3-6000RTL630
0.7pf
0.7pf
GXT3-8000/10000RT208
0.9pf
0.8pf
Ambient Temperature, °C (°F)
Table 10
Internal battery cabinet specifications
GXT3-240BATKIT
GXT3-288RTBKIT
GXT3-6000RTL630
GXT3-8000RT208
GXT3-10000RT208
7.2 x 15.4 x 4.4
(184 x 390 x 113)
8.1 x 19.7 x 5.3
(207 x 500 x 135)
10.3 x 23.7 x 12.2
(262 x 602 x 310)
10.3 x 18.4 x 7
(262 x 467 x 178)
9.5 x 23.9 x 12.2
(242 x 607 x 310)
Unit
75.8 (34.4)
45.4 (20.6)
71.1 (32.3)
Shipping
81.1 (36.8)
50.7 (23)
76.4 (34.7)
GXT3-144BATKIT
Model Number
GXT3-5000RT208
GXT3-6000RT208
Used with UPS Model
Dimensions, Rack Mount, W x D x H, in (mm)
8.1 x 19.3 x 2.8
Unit
(206 x 490 x 70)
Shipping
Weight lb (kg)
Valve-regulated, non-spillable, flame retardant, lead acid
Type
Quantity x V x Rating
Battery Mfr / Part #
2 x 6 x 12V x 9.0 AH
20 x 12V x 9.0 AH
2 x 12 x 12V x 9.0 AH
REW45-12
Yuasa/NPH5-12
REW45-12
See Table 14
Backup Time
3 hours to 90% capacity after full discharge into 100% load
Recharge Time
Environmental
Operating Temp, °F (°C)
32 to 104 (0 to 40); see Table 9
Storage Temp, °F (°C)
5 to 122 (-15 to 50)
Relative Humidity
Operating Elevation
0% to 95%, non-condensing
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Agency
Safety
UL 1778, c-UL Listed (suitable for computer room applications)
RFI/EMI
FCC Part 15, Subpart B, Class A
Transportation
ISTA Procedure 1A
40
Specifications
Table 11
External battery cabinet specifications
GXT3-144VBATT
GXT3-240VBATTUL
GXT3-288RTVBATT
GXT3-5000 &
GXT3-6000RT208
GXT3-6000RTL630
GXT3-8000 &
GXT3-10000RT208
Unit (with bezel)
16.9 x 26.1 x 3.3
(430 x 662 x 85)
16.9 x 22.6 x 5.1
(430 x 574 x 130)
16.9 x 26.5 x 6.8
(430 x 672 x 173)
Shipping
12.3 x 34.3 x 25.8
(312 x 872 x 655)
20.9 x 29.3 x 16
(530 x 745 x 407)
24.5 x 33.1 x 13.2
(622 x 842 x 336)
Unit
99.9 (45.3)
94.8 (43)
29.8 (13.5)
Shipping
110.2 (50)
119 (54)
44.1 (20)
Model Number
Used w/UPS Model
Dimensions, W x D x H, in. (mm)
Weight, lb (kg)
Battery Parameters
Type
Qty x V
Valve-regulated, non-spillable, lead acid
2 x 6 x 12V x 9.0 AH
2 x 10 x 12V x 9.0 AH
2 x 12 x 12V x 9.0 AH
REW45-12
Yuasa/NPH5-12
REW45-12
Battery Mfr., Part #
Backup Time
See Table 14
Environmental
Operating Temp, °F (°C)
32 to 104 (0 to 40); see Table 9
Storage Temp, °F (°C)
5 to 122 (-15 to 50)
Relative Humidity
Operating Elevation
0% to 95%, non-condensing
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
Agency
Safety
UL 1778, c-UL Listed (suitable for computer room applications)
RFI/EMI
FCC Part 15, Subpart B, Class A
Transportation
Table 12
ISTA Procedure 1A
Power distribution specifications: GXT3-5000RT208, GXT3-6000RT208 and GXT3-6000RTL630
Power Distribution Box Model #
PD Model #
PD2-HDWR
PD2-HDWR-MBS
PD2-001
PD2-002
PD2-003
PD2-004
PD2-005
PD2-006
PD2-L630
Dimensions, W x D x H, in (mm)
Unit
5.2x15.5x3.5
(132x393x88)
5.2x15.5x3.5
(132x393x88)
5.2x15.5x3.5
(132x393x88)
5.2x15.5x3.5
(132x393x88)
4.7x13.2x4.1
(119x335x105)
Shipping
9.5x20.7x9.1
(242x527x230)
9.5x20.7x9.1
(242x527x230)
9.5x20.7x9.1
(242x527x230)
9.5x20.7x9.1
(242x527x230)
10.2x18.4x8.7
(260x467 x222)
Weight, lb (kg)
Unit
5.1 (2.3)
6 (2.7)
8.8 (4)
8.6 (3.9)
8.6 (3.9)
9.9 (4.5)
10.6 (4.8)
9.5 (4.3)
8.8 (4)
Shipping
7.3 (3.3)
8.2 (3.7)
11 (5)
10.8 (4.9)
10.8 (4.9)
12.1 (5.5)
12.8 (5.8)
11.7 (5.3)
11 (5)
Electrical Specifications
Amp Rating
30A 2-pole input breaker for UPS input power
Input Power
Connections
Hardwire Terminal Block
3W + G (L-L-N-G)
[1] L14-30R on a 300mm cord
(1) L6-30P
Output Power
Connection
Hardwire Terminal Block
3W + G (L-L-N-G)
(4) 5-20R (2) 5-20R (4) 5-20R (4) L5-20R (4) L5-20R
(1) L14-30
(4) L6-20R
(1) L6-30R (2) L6-20R (2) L6-30 (2) L5-30R (2) L6-30R
(2) L6-20R
(2) L6-30R
41
Specifications
Table 13
Power distribution box specifications for GXT3-8000RT208 and GXT3-10000RT208
Power Distribution Box Model #
PD Model Number
PD2-101
PD2-102
PD2-103
PD2-104
PD2-105
PD2-106
7.4 x 5.7
(188 x 145)
7.4 x 5.7
(188 x 145)
7.4 x 5.7
(188 x 145)
7.4 x 5.7
(188 x 145)
7.4 x 5.7
(188 x 145)
7.4 x 5.7
(188 x 145)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
11.9 x 20.6 x 8.7
(302 x 522 x 220)
Dimensions, W x D x H, in. (mm)
Unit
Shipping
Weight, lb (kg)
Unit
4.4 (2)
6.6 (3)
6.6 (3)
6.6 (3)
4.4 (2)
6.6 (3)
Shipping
6.6 (3)
8.8 (4)
8.8 (4)
8.8 (4)
6.6 (3)
8.8 (4)
Electrical Specifications
Amp Rating
2-pole 60A Input Breaker
Input Power
Connections
Hardwire Terminal Block 3W + G (L-L-N-G) to Chassis
Output Power
Connection
(2) L6-30
(8) 5-20R
(4) L6-20R
(4) 5-20R
(4) 5-20R
(4) L6-30R
42
(4) 5-20R
(2) L6-30R
(2) L6-20R
(4) 5-20R
(2) L5-30R
(2) L5-20R
(4) L6-20R
(4) L5-20R
Specifications
Table 14
Battery run time, minutes
Run Time, Minutes
Number of
Batteries Load GXT3-6000RTL630 GXT3-5000RT208 GXT3-6000RT208 GXT3-8000RT208 GXT3-10000RT208
30%
Internal
Battery
Internal
Battery + 1
External
Battery
Cabinet
Internal
Battery + 2
External
Battery
Cabinet
Internal
Battery + 3
External
Battery
Cabinet
Internal
Battery + 4
External
Battery
Cabinet
40
30
23
34
26
40%
27
22
17
25
18
50%
21
16
12
18
13.5
60%
16
12
10
14
11
70%
13
10
7
12
8
80%
11
8
5.5
9
7
90%
9
6
4.5
8
6
100%
8
5
4
7
4.5
30%
70
72
53
75
60
40%
48
47
38
57
39
50%
36
42
29
42
32
60%
29
30
24
33
25
70%
24
25
20
27
21
80%
19
21
16
23
18
90%
16
18
14
21
16
100%
14
16
12
17
13
30%
110
106
86
120
92
40%
78
78
72
86
70
50%
60
63
48
70
52
60%
48
49
41
56
41
70%
40
42
35
47
34
80%
34
36
28
39
29
90%
30
30
24
33
26
100%
25
25
21
29
23
30%
150
140
124
180
125
40%
110
105
86
120
90
50%
82
82
72
90
72
60%
76
71
54
72
60
70%
59
58
47
64
47
80%
46
48
38
57
39
90%
41
42
34
48
35
100%
36
37
30
43
32
30%
200
200
158
230
180
40%
160
150
110
150
120
50%
110
103
88
120
90
60%
96
86
72
95
72
70%
78
72
63
82
65
80%
65
64
49
70
54
90%
57
54
45
63
47
100%
46
48
41
56
39
Using the configuration program, the user may specify the number of external battery cabinets
attached to the UPS. The factory default is programmed for internal batteries only.
Table 14 shows the estimated run times at different loads.
43
Specifications
12.1
Auto-Learning Battery Run Times
As batteries age, the estimated runtimes may become less accurate. The Liebert GXT3 is programmed to “learn” from a full battery discharge and modify the estimated run time for the measured
battery capacity. This can improve accuracy and compensate for aging batteries or batteries that
operate at different ambient temperatures.
The UPS will update the anticipated run time calculation only under certain conditions.
• The UPS must have a steady load that is greater than 20%.
• The UPS must be at 100% charge at the start of a battery discharge.
• The battery discharge must continue uninterrupted until the batteries reach their end-of-discharge voltage.
If all conditions are not met, the run time calculation will not be modified.
If the configuration program is used to change the number of battery cabinets, then the values in
Table 14 will be restored. This will override any value that is Auto-Learned.
44
Ensuring The High Availability
Of Mission-Critical Data And Applications.
Emerson Network Power, a business of Emerson (NYSE:EMR),
is the global leader in enabling Business-Critical Continuity™
from grid to chip for telecommunication networks, data centers,
health care and industrial facilities. Emerson Network Power
provides innovative solutions and expertise in areas including
AC and DC power and precision cooling systems, embedded
computing and power, integrated racks and enclosures,
power switching and controls, infrastructure management,
and connectivity. All solutions are supported globally by local
Emerson Network Power service technicians. Liebert AC power,
precision cooling and monitoring products and services
from Emerson Network Power deliver Efficiency Without
Compromise™ by helping customers optimize their data center
infrastructure to reduce costs and deliver high availability.
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
Fax: +39 049 5841 257
Asia
29/F, The Orient Square Building
F. Ortigas Jr. Road, Ortigas Center
Pasig City 1605
Philippines
+63 2 687 6615
Fax: +63 2 730 9572
While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2010 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks
or registered trademarks of their respective owners.
SL-23185_REV1_R10-10
Emerson Network Power.
The global leader in enabling Business-Critical Continuity™
AC Power
Connectivity
Embedded Computing
Embedded Power
DC Power
Infrastructure Management & Monitoring
Outside Plant
Power Switching & Controls
Precision Cooling
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Racks & Integrated Cabinets
Services
Surge Protection
Emerson, Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co. or one of its affiliated companies.
©2010 Emerson Electric Co.
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