Document Outline

• Important Safety Instructions
• SAVE THESE INSTRUCTIONS
  • Battery Cabinet Precautions
• Glossary of Symbols
• 1.0 Installation
  • 1.1 External Inspections
  • 1.2 Internal Inspections
    • 1.2.1 Storing for Delayed Installation
  • 1.3 Preliminary Checks
    • 1.3.1 Identification
  • 1.4 UPS Location
    • 1.4.1 Positioning the UPS
    • 1.4.2 Environmental Considerations
      • Battery Location
    • 1.4.3 Special Considerations for Parallel Systems
  • 1.5 Considerations in Moving the Liebert NX
    • Final Position
  • 1.6 Mechanical Considerations
    • 1.6.1 Clearances
    • 1.6.2 Floor Installation
    • 1.6.3 Cable Entry
      • System Composition
    • 1.6.4 Optional Cabinets
      • Figure 1 Cabinet arrangement-Liebert NX units and battery cabinets
      • Figure 2 Cabinet arrangement-Liebert NX units, battery cabinets and Liebert FPC
• 2.0 Electrical Connections
  • 2.1 Power Cabling
    • 2.1.1 Cable Rating
      • Lug Size and Torque Requirements
    • 2.1.2 UPS Input Configuration
      • Figure 3 Single module block diagram-dual input configuration
    • 2.1.3 Cabling Guidelines
    • 2.1.4 Cable Connections
      • Figure 4 Input and output busbars
    • 2.1.5 Safety Ground
    • 2.1.6 Protective Devices
      • UPS Rectifier and Bypass Input Supply
    • 2.1.7 Cabling Procedure
      • Common Input Connections
      • Dual Input Connections
      • Output System Connections-Ensure Correct Phase Rotation
      • Frequency Converter Mode
  • 2.2 Control Cables
    • 2.2.1 Monitor Board Features
      • Figure 5 Monitor board U2
      • Figure 6 Auxiliary terminal block detail (Monitoring Board)
  • 2.3 Dry Contacts
    • 2.3.1 Input Dry Contacts
      • Figure 7 Input dry contacts
      • Table 1 Input dry contacts at X3
    • 2.3.2 Maintenance Bypass Cabinet Interface
      • Table 2 Maintenance bypass cabinet interface
    • 2.3.3 BCB Control Interface
      • Table 3 BCB control interface
      • Figure 8 Jumper connection for BCB interface without a battery interface board
    • 2.3.4 Output Dry Contacts
      • Figure 9 Output dry contacts and EPO wiring for firmware before M170
      • Table 4 Output dry contact relays
    • 2.3.5 EPO Input-Optional
      • Figure 10 EPO wiring
      • Table 5 EPO input contact relays
• 3.0 Battery Installation
  • 3.1 Introduction
  • 3.2 Safety
  • 3.3 External Battery Cabinet Installation
    • 3.3.1 Battery Cabinets
      • Figure 11 Battery cabinet
    • 3.3.2 Connecting the Batteries
      • Figure 12 Battery cabinet-details
    • 3.3.3 Installation Considerations
      • Figure 13 Battery tray and supports
    • 3.3.4 Connecting the Battery Cabinet to the UPS
  • 3.4 Non-Standard Batteries
  • 3.5 BCB Shunt Trip
  • 3.6 Alber Monitoring System-Optional
• 4.0 Options
  • 4.1 Load Bus Synchronization
    • 4.1.1 Performance Requirements
    • 4.1.2 LBS Cable and Settings
      • Figure 14 Load Bus Synchronization cable connection in single module systems
      • Figure 15 Load Bus Synchronization cable connection with multi-module systems
  • 4.2 Configuring Parallel System Operation
    • 4.2.1 General
    • 4.2.2 Features of Parallel System
      • Figure 16 Parallel system block diagram
    • 4.2.3 Operating Principles
      • Redundancy Paralleling
    • 4.2.4 Operation Modes Summary
  • 4.3 Installing Parallel System
    • 4.3.1 Conditions for Parallel System
    • 4.3.2 Cabinet Installation
    • 4.3.3 Preliminary Checks
    • 4.3.4 Power Cables
    • 4.3.5 Parallel Control Cables
      • Parallel System Control Cables
        • Figure 17 Connecting system parallel control cables
      • Auxiliary Dry Contact Cables
        • Figure 18 Auxiliary dry contact cables for output breaker in multi-module system
        • Figure 19 Dry contacts, multiple UPS modules with distribution panel
    • 4.3.6 Emergency Power Off (EPO)
      • Figure 20 Connecting EPO push button
• 5.0 UPS Specifications
  • 5.1 Conformity and Standards
  • 5.2 UPS Environmental
    • Table 6 Environmental characteristics
  • 5.3 UPS Mechanical Characteristics
    • Table 7 UPS mechanical characteristics
  • 5.4 UPS Electrical Characteristics
    • Table 8 UPS terminal
    • 5.4.1 Input Rectifier
      • Table 9 Rectifier input power
      • Table 10 Input voltage window with derating
      • Table 11 Liebert approved replacement batteries
    • 5.4.2 DC Intermediate Circuit
      • Table 12 DC intermediate circuit
    • 5.4.3 Inverter Output
      • Table 13 Inverter output
    • 5.4.4 Bypass Input
      • Table 14 Bypass input
• 6.0 Installation Drawings
  • Figure 21 Dimensional view- front and left side views
  • Figure 22 Dimensions continued-top and bottom views
  • Figure 23 Main components-typical unit
  • Figure 24 Cable connections
  • Figure 25 Outline drawing, 33" battery power pack system, single cabinet
  • Figure 26 Terminal details, 33" battery power pack system, single cabinet Liebert NX
  • Figure 27 Battery connections
  • Figure 28 Battery cabinet interconnection
  • Figure 29 Outline drawing, Liebert NX480V, 80-120kVA Type E and E2 parallel cabinet
  • Figure 30 Outline drawing, Liebert NX480V, 80-120kVA Type E1 parallel cabinet
  • Figure 31 Main component location drawing Liebert NX 480V, Type E parallel cabinet
  • Figure 32 Main component location drawing Liebert NX 480V, Type E1 parallel cabinet
  • Figure 33 Main component location drawing Liebert NX 480V, Type E2 parallel cabinet
  • Figure 34 Lineup detail-Parallel Type E connection to Liebert NX
  • Figure 35 Lineup detail-Parallel Type E1 connection to Liebert NX
  • Figure 36 Lineup detail-Parallel Type E2 connection to Liebert NX
  • Figure 37 Line-up detail, bolt together description, 40-120 kVA Liebert NX
• 7.0 Operation
  • 7.1 General Description
    • Figure 38 Single module block diagram (dual input configuration)
    • 7.1.1 Bypass Supplies
    • 7.1.2 Operating Modes
      • Normal Mode
      • Battery Mode
      • Bypass Mode
      • Maintenance Mode
      • Parallel Redundancy Mode (System Expansion)
      • Frequency Converter Mode
• 8.0 Operator Control and Display Panel
  • 8.1 Operator Control Panel
    • Figure 39 Overview of control panel
    • 8.1.1 Display Panel Layout
      • Figure 40 Detailed view of control panel
  • 8.2 Mimic Display Indicators
    • Figure 41 Mimic display indicators location
    • Table 15 Mimic display status indicators
  • 8.3 Control Buttons
    • Figure 42 Location of control buttons
    • Table 16 Control buttons
  • 8.4 Audible Buzzer
    • Figure 43 Buzzer location
  • 8.5 LCD Overview
    • Figure 44 Sections of the LCD
  • 8.6 Navigation Keys
    • Table 17 Icons for navigation keys
  • 8.7 UPS System Information
    • Table 18 Description of items in UPS system window
  • 8.8 LCD Menus and Data Items
    • Figure 45 Menu tree
    • Table 19 Descriptions of UPS menus and data window items
  • 8.9 Language Selection
    • Figure 46 Language selection
  • 8.10 Current Date and Time
    • Figure 47 Set date and time
  • 8.11 UPS Status Messages
    • Figure 48 Current status and history log records
  • 8.12 Types of LCD Screens
    • 8.12.1 Opening Display
      • Figure 49 Opening display
    • 8.12.2 Default Screen
      • Figure 50 Default screen
    • 8.12.3 UPS Help Screen
      • Figure 51 Help screen
    • 8.12.4 Screen Saver Window
      • Figure 52 Screen saver window
  • 8.13 Pop-Up Windows
    • 8.13.1 From Bypass to Inverter Mode With Power Interruption
    • 8.13.2 From Inverter to Bypass Mode With Interruption
    • 8.13.3 System Self-Test
    • 8.13.4 Battery Capacity Test Confirmation
    • 8.13.5 Battery Self-Test Aborted, Condition Not Met
    • 8.13.6 Battery Refresh Charge Aborted, Condition Not Met
• 9.0 Operating Instructions
  • 9.1 Liebert NX Operating Modes
    • Table 20 UPS operating modes
    • 9.1.1 Circuit Breakers
      • Figure 53 Circuit breakers
  • 9.2 UPS Startup
    • 9.2.1 Startup Procedure
    • 9.2.2 Verify Switching Between Operation Modes
      • Switch from Normal Mode to Battery Mode
      • Switch from Normal Mode to Bypass Mode
      • Switch from Bypass Mode to Normal Mode
  • 9.3 Maintenance Bypass Procedure and Powering Down the UPS
  • 9.4 Auto Restart
  • 9.5 Emergency Shutdown With EPO
  • 9.6 Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions
  • 9.7 Battery Protection
    • 9.7.1 Battery Undervoltage Pre-Warning
    • 9.7.2 Battery End-of-Discharge (EOD) Protection
  • 9.8 Multi-Module System Procedures
    • 9.8.1 Isolating One Module in a Multi-Module System
      • Figure 54 Typical parallel system block diagram with common input supply, with separate batteries and optional output / bypass distribution panel
    • 9.8.2 Inserting One Module into a Multi-Module System
    • 9.8.3 Shutdown Procedure-Complete UPS and Load Shutdown
  • 9.9 Commissioning a Parallel System
  • 9.10 Parallel System Start Up
• 10.0 Options
  • 10.1 Communication and Other User Terminals
    • Figure 55 Monitoring board (U2) auxiliary terminal block detail
    • 10.1.1 Analog Input Interface
    • 10.1.2 Power Output
    • 10.1.3 Liebert IntelliSlot Communication
    • 10.1.4 Communication and Monitoring
      • Liebert IntelliSlot Web Card - SNMP/HTTP Network Interface Card
        • Table 21 Liebert NX communication options
    • 10.1.5 Configuring Baud Rates
      • Figure 56 Liebert IntelliSlot Web card display
      • Relay Card
        • Table 22 Relay Card pin configuration
        • Table 23 Relay card jumper configuration
      • MultiPort 4 Card
        • Figure 57 MultiPort 4 card pin assignment
  • 10.2 LBS Mode-Load Bus Synchronization
    • 10.2.1 Remote Alarm Monitor
  • 10.3 Replacing Dust Filters
    • Figure 58 Dust filter replacement
• 11.0 Specifications and Technical Data
  • 11.1 Lug Size and Torque Requirements
    • Table 24 Torque specifications
    • Table 25 Battery torque rating
  • 11.2 Cable Lengths: Floor to Connection Point Inside UPS
    • Table 26 Distance to connection points on the Liebert NX UPS
    • Table 27 Parallel system current table
    • Table 28 External cabinet dimensions, including side panels
    • Table 29 Lead/Lag ratings
  • 11.3 Cable size and tightening torques
    • Table 30 Cable size tightening torque at Liebert NX 40kVA UPS terminals
    • Table 31 Cable size tightening torque at Liebert NX 60kVA UPS terminals
    • Table 32 Cable size tightening torque at Liebert NX 80kVA UPS terminals
    • Table 33 Cable size tightening torque at Liebert NX 100kVA UPS terminals
    • Table 34 Cable size tightening torque at Liebert NX 120kVA UPS terminals
  • 11.4 Battery Run Times
    • Table 35 Estimated battery run time, minutes
• Appendix A - UPS Status Messages
  • Table 36 UPS status messages