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 1+N Systems
  • 1.5 Considerations in Moving the NX
    • Final Position
  • 1.6 Mechanical Considerations
    • 1.6.1 Clearances
    • 1.6.2 Floor Installation
    • 1.6.3 Cable Entry
      • 10-30kVA UPS
      • System Composition
    • 1.6.4 Optional Cabinets
      • Figure 1 Cabinet arrangement
• 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 2 Single module block diagram-dual input configuration
    • 2.1.3 Cabling Guidelines
    • 2.1.4 Cable Connections
      • Figure 3 Input busbars
      • Figure 4 Battery fuses and connections
    • 2.1.5 Safety Ground
      • Figure 5 Ground and neutral busbar connections
    • 2.1.6 Protective Devices
      • UPS Rectifier and Bypass Input Supply
      • System Output
    • 2.1.7 Cabling Procedure
      • Common Input Connections
      • Dual Input Connections
      • Output System Connections-Ensure Correct Phase Rotation
      • Internal UPS Battery Connections
  • 2.2 Control Cables
    • 2.2.1 Monitor Board Features
      • Figure 6 Monitor board U2
      • Figure 7 Auxiliary terminal block detail (Monitoring Board)
  • 2.3 Dry Contacts
    • 2.3.1 Input Dry Contacts
      • Figure 8 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 Box Interface
      • Table 3 BCB box interface
      • Figure 9 Jumper connection for BCB interface
    • 2.3.4 Output Dry Contacts
      • Figure 10 Output dry contacts and EPO wiring for firmware before M170
      • Table 4 Output dry contact relays
    • 2.3.5 EPO Input-Optional
      • Firmware Before M200
        • Table 5 EPO input contact relays
      • Firmware M200 or Later
        • Figure 11 EPO wiring for firmware M200 or later
        • Table 6 EPO input contact relays
• 3.0 Battery Installation
  • 3.1 Introduction
  • 3.2 Safety
  • 3.3 UPS Batteries
  • 3.4 External Battery Cabinet Installation
    • 3.4.1 Matching Battery Cabinets
    • 3.4.2 Connecting the Batteries
      • Figure 12 Battery cabinet-details
      • Figure 13 Narrow battery cabinet, 27 in. (690mm) - rear view
      • Figure 14 Wide battery cabinet, 57 in. (1488mm) - front view
    • 3.4.3 Installation Considerations
      • Figure 15 Internal cable wiring from battery cabinet to Liebert NX
      • Figure 16 Battery tray and supports
    • 3.4.4 Connecting the Battery Cabinet to the UPS
  • 3.5 Non-Standard Batteries
• 4.0 Maintenance Bypass Cabinet
  • Figure 17 Single UPS with external Maintenance Bypass Cabinet-typical configuration
  • 4.1 Bypass Switch
  • 4.2 Normal (UPS) Mode
  • 4.3 Bypass Mode
  • 4.4 Maintenance Mode
  • 4.5 Locating the Cabinet
  • 4.6 Cable Installation
    • 4.6.1 Wiring Preparation
      • Removing the Cover Plates
        • Figure 18 Maintenance Bypass Cabinet-access plate removed
    • 4.6.2 Power Cable Installation
    • 4.6.3 Input/Output Wiring
      • Figure 19 Maintenance Bypass Cabinet wiring access panel
      • Figure 20 Maintenance bypass control wire location
  • 4.7 Bolting Cabinets Together
• 5.0 Option Installations
  • 5.1 Load Bus Synchronization
    • 5.1.1 Performance Requirements
    • 5.1.2 DBS Cable and Settings
      • Figure 21 Load Bus Synchronization cable connection
  • 5.2 Configuring Parallel System Operation
    • 5.2.1 General
    • 5.2.2 Features of Parallel System
      • Figure 22 1+N system block diagram
    • 5.2.3 Operating Principles
      • Redundancy Paralleling
    • 5.2.4 Operation Modes Summary
  • 5.3 Installing Parallel System
    • 5.3.1 Conditions for Parallel System
    • 5.3.2 Cabinet Installation
    • 5.3.3 Preliminary Checks
    • 5.3.4 Protective Devices
    • 5.3.5 Power Cables
    • 5.3.6 Parallel Control Cables
      • Parallel System Control Cables
        • Figure 23 Connecting '1+N' system parallel control cables
      • Auxiliary Dry Contact Cables
        • Figure 24 Auxiliary dry contact cables for output breaker in multi-module system
        • Figure 25 Dry contacts, multiple UPS modules with distribution panel
    • 5.3.7 Emergency Power Off (EPO)
      • Figure 26 Connecting EPO push button
  • 5.4 Battery Circuit Breaker Box
    • Table 7 Available battery circuit breaker boxes
    • Figure 27 Battery circuit breaker box connections
  • 5.5 Battery Start
  • 5.6 Remote Alarm Monitor
  • 5.7 Analog Input Interface
  • 5.8 Power Output
  • 5.9 Intellislot™ Communication
  • 5.10 OC Web Card-SNMP/HTTP Network Interface Card
    • Table 8 NX communication options
    • 5.10.1 Configuring Baud Rates
      • Figure 28 OC Web card display
  • 5.11 Relay Card
    • Table 9 Relay Card pin configuration
    • Table 10 Relay card jumper configuration
  • 5.12 MultiPort 4 Card
    • Figure 29 MultiPort 4 card pin assignment
• 6.0 Installation Drawings
  • Figure 30 Dimensional view- front and left side views
  • Figure 31 Dimensions continued-top and bottom views
  • Figure 32 Main components-typical unit
  • Figure 33 Cable connections
  • Figure 34 Location of internal batteries
  • Figure 35 Battery connections
  • Figure 36 Battery cabinet interconnection
  • Table 11 Liebert -supplied interconnect wiring
  • Figure 37 Maintenance Bypass interconnection
  • Table 12 Liebert-supplied interconnect wiring for Maintenance Bypass Cabinet
  • Figure 38 NX 1+1 parallel cabinet interconnections
  • Table 13 Liebert-supplied interconnect wiring
  • Figure 39 Lineup detail-SlimLine distribution cabinet to NX
  • Table 14 Liebert-supplied interconnect wiring-SlimLine distribution cabinet to NX
  • Figure 40 Lineup detail-1+N Type A connection to NX
  • Table 15 Interconnect wiring-1+N Type A connection to NX
  • Figure 41 Lineup detail-1+N Type B1 connection to NX
  • Table 16 Interconnect wiring-1+N Type B1 connection to NX
  • Figure 42 Lineup detail-1+N Type C connection to NX
  • Table 17 Interconnect wiring-1+N Type C connection to NX
  • Figure 43 Suggested placement-single NX with auxiliary cabinets
  • Figure 44 Suggested placement, multiple NX units with auxiliary cabinets
• 7.0 Operation
  • 7.1 General Description
    • Figure 45 Single module block diagram (dual input configuration)
  • 7.2 Bypass Supplies
  • 7.3 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 46 Overview of control panel
    • 8.1.1 Display Panel Layout
      • Figure 47 Detailed view of control panel
  • 8.2 Mimic Display Indicators
    • Figure 48 Mimic display indicators location
    • Table 18 Mimic display status indicators
  • 8.3 Control Buttons
    • Figure 49 Location of control buttons
    • Table 19 Control buttons
  • 8.4 Alarm Buzzer
    • Figure 50 Alarm buzzer location
  • 8.5 LCD Overview
    • Figure 51 Sections of the LCD
  • 8.6 Navigation Keys
    • Table 20 Icons for navigation keys
  • 8.7 UPS System Information
    • Table 21 Description of items in UPS system window
  • 8.8 LCD Menus and Data Items
    • Figure 52 Menu tree
  • 8.9 Language Selection
  • 8.10 Current Date and Time
    • Table 22 Descriptions of UPS menus and data window items
  • 8.11 UPS Status Messages
    • Figure 53 Current status and history log records
  • 8.12 Types of LCD Screens
    • 8.12.1 Opening Display
      • Figure 54 Opening display
    • 8.12.2 Default Screen
      • Figure 55 Default screen
    • 8.12.3 UPS Help Screen
      • Figure 56 Help screen
    • 8.12.4 Screen Saver Window
      • Figure 57 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 NX Operating Modes
    • Table 23 UPS operating modes
    • 9.1.1 Power Switches
      • Figure 58 Power switches - 10kVA NX
      • Table 24 Rotary switch configuration
  • 9.2 UPS Start Up
    • 9.2.1 Start-Up 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 Switching the UPS from Normal to Maintenance Bypass
  • 9.4 Powering Down the UPS
  • 9.5 Powering Down the UPS and Maintaining Power to Load
    • Figure 59 Typical configuration for single UPS with external maintenance bypass cabinet
  • 9.6 Emergency Shutdown With EPO
  • 9.7 Auto Restart
  • 9.8 Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions
  • 9.9 Battery Protection
    • 9.9.1 Battery Undervoltage Pre-Warning
    • 9.9.2 Battery End-of-Discharge (EOD) Protection
    • 9.9.3 Battery Fuse-Blow Warning
  • 9.10 Isolating and Integrating One Module in a Multi-Module System
  • 9.11 Inserting One Module into a Multi-Module System
  • 9.12 Shutting Down a Multi-Module System Without System Bypass Switch
  • 9.13 Shutting Down a Multi-Module System With System Bypass Switch
  • 9.14 Commissioning a Parallel System
  • 9.15 Maintenance Bypass Cabinet Operating Procedures
    • 9.15.1 Start Up and Initialization
    • 9.15.2 Shutting Down the UPS
    • 9.15.3 Transferring System from UPS to Maintenance Bypass Operation
    • 9.15.4 Transfer the System from Maintenance Bypass to UPS Operation
    • 9.15.5 Transfer the System from UPS Operation to Maintenance Bypass
      • Figure 60 Single UPS with external Maintenance Bypass Cabinet-typical configuration
  • 9.16 Parallel System Start Up
  • 9.17 Replacing Dust Filters
    • Figure 61 Dust filter replacement
• 10.0 UPS Specifications
  • 10.1 Conformity and Standards
  • 10.2 UPS Environmental
    • Table 25 Environmental characteristics
  • 10.3 UPS Mechanical Characteristics
    • Table 26 Mechanical characteristics
  • 10.4 UPS Electrical Characteristics
    • Table 27 UPS terminal
    • 10.4.1 Battery Manufacturers and Models
      • Table 28 Approved batteries
    • 10.4.2 Input Rectifier
      • Table 29 Rectifier input power
    • 10.4.3 DC Intermediate Circuit
      • Table 30 DC intermediate circuit
    • 10.4.4 Inverter Output
      • Table 31 Inverter output
    • 10.4.5 Bypass Input
      • Table 32 Bypass input
• 11.0 Specifications and Technical Data
  • 11.1 Lug Size and Torque Requirements
    • Table 33 Torque specifications
    • Table 34 Battery torque rating
    • Table 35 Maintenance bypass cabinet electrical data (single input)
    • Table 36 Maintenance bypass cabinet electrical data (dual input)
    • Table 37 Multi-module bypass cabinet electrical data
    • Table 38 Maintenance bypass cabinet lug sizes
    • Table 39 Battery cabinet physical characteristics
    • Table 40 Maintenance Bypass Cabinet weights
    • Table 41 Maintenance bypass cabinet dimensions
    • Table 42 Multi-module paralleling cabinet dimensions
  • 11.2 Cable Lengths: Floor to Connection Point Inside UPS
    • Table 43 Distance to connection points on the NX UPS
• Appendix A - UPS Status Messages
  • Table 44 UPS status messages