AC Power
Liebert NX UPS
User Manual–40-200kVA, 480V,60Hz
For Business-CriticalContinuity
Page
TABLE OF CONTENTS
4.0 OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.0 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURES
Figure 39 Main component location drawing Liebert NX 480V, CB2, CB3, CB4 configurations . . . . . . . . .
TABLES
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Battery Cabinet Precautions
• Remove watches, rings and other metal objects
Risk of electrical shock
GLOSSARY OF SYMBOLS
AC input AC output
Requests the user to consult the manual
1.1External Inspections
1.0INSTALLATION
1.2Internal Inspections
1.2.1Storing for Delayed Installation
1.3Preliminary Checks
1.4UPS Location
1.5Considerations in Moving the Liebert NX
Battery Location
1.6Mechanical Considerations
1.4.3Special Considerations for Parallel Systems
1.6.1Clearances
1.6.2Floor Installation
1.6.3Cable Entry
System Composition
Front of Units
Installation
Front of Units
Front of Units
Battery Cabinet
Installation
Battery Cabinet
Battery Cabinet
2.0ELECTRICAL CONNECTIONS
2.1Power Cabling
2.1.1Cable Rating
Lug Size and Torque Requirements
2.1.3Cabling Guidelines
2.1.2UPS Input Configuration
Liebert NX 160-200kVAConnections
Liebert NX 40-120kVAConnections
2.1.4Cable Connections
Figure 4 Input and output busbars
2.1.7Cabling Procedure
2.1.5Safety Ground
2.1.6Protective Devices
UPS Rectifier and Bypass Input Supply
Common Input Connections
Frequency Converter Mode
Dual Input Connections
Electrical Connections
2.2Control Cables
2.2.1Monitor Board Features
Figure 5 Monitor board U2
Electrical Connections
2.3Dry Contacts
Table 2 Maintenance bypass cabinet interface
2.3.2Maintenance Bypass Cabinet Interface
2.3.1Input Dry Contacts
Figure 7 Input dry contacts
2.3.4Output Dry Contacts
2.3.3Battery Circuit Breaker Control Interface
Table 3 BCB control interface
Table
2.3.5EPO Input—Optional
Figure 9 EPO wiring
EPO - NO
EPO - NC
3.0BATTERY INSTALLATION
3.2Safety
3.1Introduction
3.3.1Battery Cabinets
3.3External Battery Cabinet Installation
Figure 10 Battery cabinets for Liebert NX
3.3.3Installation Considerations
3.3.2Connecting the Batteries
Figure 11 Battery cabinet—details
Figure 12 Battery tray and supports
3.3.4Connecting the Battery Cabinet to the UPS
3.4Non-StandardBatteries
3.5BCB Shunt Trip
3.6Alber Monitoring System—Optional
This power must be UPS protected
4.1Load Bus Synchronization
4.1.2LBS Cable and Settings
4.0OPTIONS
4.1.1Performance Requirements
4.2.2Features of Parallel System
4.2Configuring Parallel System Operation
4.2.1General
Figure 15 Parallel system block diagram
480V, 3W Input 480V DC Battery Input
Liebert NX UPS 40-200kVA
480V, 3W UOB Output
•Battery Mode Operation
•Normal Mode Operation
•Bypass Mode Operation
•Maintenance Bypass Mode Operation
4.3.2Cabinet Installation
4.3Installing Parallel System
4.3.4Power Cables
4.3.1Conditions for Parallel System
Auxiliary Dry Contact Cables
For startup procedure, 9.2 - UPS Startup
Figure 20 Connecting EPO push button
4.3.6Emergency Power Off EPO
X2:3
X2:4
Environmental characteristics
5.0UPS SPECIFICATIONS
UPS mechanical characteristics
Table
UPS Specifications
5.4UPS Electrical Characteristics
Table 8 UPS terminal
5.4.1Input Rectifier
Table 9 Rectifier input power
UPS terminal continued
Table 10 Input voltage window with derating
UPS Specifications
Table 11 Liebert approved replacement batteries
5.4.2DC Intermediate Circuit
5.4.3Inverter Output
5.4.4 Bypass Input
UPS Specifications
Table 14 Bypass input
Front
Left Side
Detail A
Front
Front
Parallel Board
FRONT VIEW
Installation Drawings
LEFT VIEW
1239mm
BOTTOM VIEW Front of UPS
TOP VIEW Front of UPS
Installation Drawings
DETAIL A
224mm
DETAIL A
8.83
609.3 24 872.2 34.3
U3819205
RIGHT SIDE
Installation Drawings
FRONT
SECTION A-A
Top View
Detail A
Detail B
without BCB Cover Plate
Installation Drawings
49 Battery Cabinet Right-SideViews
A D NX 160-200KVAUPS Module Front View A CBB D CD
External Battery Cabinet
Installation Drawings
Battery Breaker
Auxiliary Contacts
Top Right Side
Front
845 33.2 965 38 2000 78.7
Front
Right Side
Front
Installation Drawings
Rear
System Input
Without Covers
Installation Drawings
FRONT
UPS Output Breakers Ground Busbar
System
Without Covers
FRONT
FRONT
Door Open
A B1-B4 FRONT
Without Covers
FRONT
FRONT
Door Open
LEFT SIDE Without Exterior Panels 965 38 in 2000
Installation Drawings
78.7 in
RIGHT SIDE Without Exterior Panels
7.0OPERATION
7.1General Description
Battery Mode
Normal Mode
Bypass Mode
7.1.1Bypass Supplies
Parallel Redundancy Mode System Expansion
Maintenance Mode
Frequency Converter Mode
Operation
8.1.1Display Panel Layout
8.0OPERATOR CONTROL AND DISPLAY PANEL
Figure 45 Overview of control panel
Liquid Crystal Display LCD Mimic display LED2
Bypass indicator
Figure 47 Mimic display indicators location
Load indicator
Inverter indicator
Figure 48 Location of control buttons
Inverter Off button Fault Clear button
Button cover EPO button
Silence On/Off button Inverter On button
Figure 49 Buzzer location
Data and settings
Buzzer
Figure 50 Sections of the LCD
Table 17 Icons for navigation keys
Figure 51 Menu tree
8.8LCD Menus and Data Items
Operator Control and Display Panel
Figure 52 Language selection
8.9Language Selection
Figure 53 Set date and time
8.10Current Date and Time
Status
Current
Messages
History Log records menu
Figure 56 Default screen
8.12.2Default Screen
8.12Types of LCD Screens
8.12.1Opening Display
8.12.3UPS Help Screen
Press any key back to main menu
8.12.4Screen Saver Window
Figure 57 Help screen
8.13.5Battery Self-TestAborted, Condition Not Met
8.13.4 Battery Capacity Test Confirmation
8.13Pop-UpWindows
8.13.3System Self-Test
9.0OPERATING INSTRUCTIONS
9.1Liebert NX Operating Modes
Table 20 UPS operating modes
9.2UPS Startup
9.2.1Startup Procedure
9.1.1Circuit Breakers
Figure 59 Circuit breakers
•Close CB5 CB1, CB2, CB3 and CB5 are closed
Switch from Bypass Mode to Normal Mode
Switch from Normal Mode to Bypass Mode
9.5Emergency Shutdown With EPO
9.4Auto Restart
9.8Multi-ModuleSystem Procedures
9.7Battery Protection
9.7.1Battery Undervoltage Pre-Warning
9.7.2Battery End-of-DischargeEOD Protection
3.Close Input breaker CB1
9.10Parallel System Startup
9.9Commissioning a Parallel System
10.1Communication and Other User Terminals
10.1.2Power Output
10.0OPTIONS
10.1.1Analog Input Interface
10.1.4Communication and Monitoring
10.1.5Configuring Baud Rates
Table 21 Liebert NX communication options
Options
Figure 62 Liebert IntelliSlot Web card display
Table 23 Relay card jumper configuration
Table 22 Relay Card pin configuration
Relay Card
Figure 63 MultiPort 4 card pin assignment
MultiPort 4 Card
Figure 64 Dust filter replacement
10.2.1Remote Alarm Monitor
10.2LBS Mode—LoadBus Synchronization
10.3Replacing Dust Filters
Table 24 Torque specifications
11.0SPECIFICATIONS AND TECHNICAL DATA
Table 25 Battery torque rating
Specifications and Technical Data
Table 27 Parallel system current table
Specifications and Technical Data
11.3Cable size and tightening torques
Specifications and Technical Data
Specifications and Technical Data
Table 37 Enersys battery run times in minutes
11.4Battery Run Times
Table 38 C&D Dynasty battery run times in minutes
Specifications and Technical Data
Specifications and Technical Data
Table 38 C&D Dynasty battery run times in minutes
Table 39 UPS status messages
APPENDIX A - UPS STATUS MESSAGES
UPS Status Messages
UPS Status Messages
Table 39 UPS status messages
Event Message
Description / Suggested Action if any
UPS Status Messages
Table 39 UPS status messages
UPS Status Messages
Table 39 UPS status messages
UPS Status Messages
Table 39 UPS status messages
UPS Status Messages
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Liebert NX™ UPS
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