Emerson 480V, 60HZ user manual Liebert NX 40-120kVAConnections, Liebert NX 160-200kVAConnections

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2.1.4Cable Connections

Electrical Connections

2.1.4Cable Connections

The rectifier input, bypass and output are easily accessible from the front of the unit for installation. All require lug type terminations. They are connected to busbars on the front side of the Liebert NX and below the circuit breaker, as shown in Figure 4. These busbars are accessible when the front side panel is removed. Busbars to connect external batteries are accessible from the front of the UPS.

NOTE

External connection access requires removal of a protective panel on the lower front of the UPS.

Figure 4 Input and output busbars

Liebert NX 40-120kVA Connections

Battery Input

Connections

Rectifier Input Busbars (Phases are indicated by

letters below the

bars)

Figure 4 Input and output busbarsLiebert NX 40-120kVA ConnectionsLiebert NX 160-200kVA Connections Bypass Input Busbars (Phases are indicated by letters below the bars)

Output Busbars (Phases are indicated by letters below the bars)

Ground

Busbar

Liebert NX 160-200kVA Connections

Battery Input

Connections

Rectifier Input Busbars (Phases are indicated by letters below the bars)

NOTE

Output Busbars (Phases are indicated by letters below the bars)

Ground

Busbar

Bypass Input Busbars (Phases are indicated by letters below the bars)

There is no battery fuse in the UPS; the battery cabinet must include a circuit breaker to cut off the current in case of short circuit. Refer to Table 8 for current ratings.

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Contents AC Power Liebert NX UPSUser Manual–40-200kVA, 480V,60Hz For Business-CriticalContinuityPage 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 INSTRUCTIONSBattery Cabinet Precautions • Remove watches, rings and other metal objects Risk of electrical shock GLOSSARY OF SYMBOLSAC input AC output Requests the user to consult the manual1.1External Inspections 1.0INSTALLATION1.2Internal Inspections 1.2.1Storing for Delayed Installation1.3Preliminary Checks 1.4UPS Location1.5Considerations in Moving the Liebert NX Battery Location1.6Mechanical Considerations 1.4.3Special Considerations for Parallel Systems1.6.1Clearances 1.6.2Floor Installation1.6.3Cable Entry System CompositionFront of Units Liebert Battery CabinetLiebert NX Bypass2.0ELECTRICAL CONNECTIONS 2.1Power Cabling2.1.1Cable Rating Lug Size and Torque Requirements2.1.3Cabling Guidelines 2.1.2UPS Input ConfigurationLiebert NX 160-200kVAConnections Liebert NX 40-120kVAConnections2.1.4Cable Connections Figure 4 Input and output busbars2.1.7Cabling Procedure 2.1.5Safety Ground2.1.6Protective Devices UPS Rectifier and Bypass Input SupplyCommon Input Connections Dual Input ConnectionsFrequency Converter Mode 2.2.1Monitor Board Features 2.2Control CablesFigure 5 Monitor board U2 2.3Dry Contacts Table 2 Maintenance bypass cabinet interface 2.3.2Maintenance Bypass Cabinet Interface2.3.1Input Dry Contacts Figure 7 Input dry contacts2.3.4Output Dry Contacts 2.3.3Battery Circuit Breaker Control InterfaceTable 3 BCB control interface Output dry contact relays2.3.5EPO Input—Optional Figure 9 EPO wiringEPO - NO EPO - NC3.2Safety 3.0BATTERY INSTALLATION3.1Introduction 3.3External Battery Cabinet Installation 3.3.1Battery CabinetsFigure 10 Battery cabinets for Liebert NX 3.3.2Connecting the Batteries 3.3.3Installation ConsiderationsFigure 11 Battery cabinet—details Figure 12 Battery tray and supports 3.3.4Connecting the Battery Cabinet to the UPS3.4Non-StandardBatteries 3.5BCB Shunt Trip3.6Alber Monitoring System—Optional This power must be UPS protected4.1Load Bus Synchronization 4.1.2LBS Cable and Settings4.0OPTIONS 4.1.1Performance Requirements4.2Configuring Parallel System Operation 4.2.2Features of Parallel System4.2.1General Figure 15 Parallel system block diagram 480V, 3W Input 480V DC Battery InputLiebert NX UPS 40-200kVA 480V, 3W UOB Output•Maintenance Bypass Mode Operation •Battery Mode Operation4.2.3Operating Principles Redundancy Paralleling 4.2.4Operation Modes Summary4.3.2Cabinet Installation 4.3Installing Parallel System4.3.4Power Cables 4.3.1Conditions for Parallel SystemAuxiliary Dry Contact Cables For startup procedure, 9.2 - UPS StartupFigure 20 Connecting EPO push button 4.3.6Emergency Power Off EPOX2:3 X2:45.0UPS SPECIFICATIONS Environmental characteristicsUPS mechanical characteristics Table 8 UPS terminal 5.4UPS Electrical Characteristics5.4.1Input Rectifier Table 9 Rectifier input powerUPS terminal continued Table 10 Input voltage window with derating5.4.2DC Intermediate Circuit Table 11 Liebert approved replacement batteries5.4.3Inverter Output Table 12 DC intermediate circuitTable 14 Bypass input 5.4.4 Bypass InputFront Left SideDetail A FrontParallel Board LEFT VIEW FRONT VIEW1239mm 2000mmBOTTOM VIEW Front of UPS TOP VIEW Front of UPSInstallation Drawings DETAIL A DETAIL A 224mm8.83 609.3 24 872.2 34.3 U3819205 FRONT RIGHT SIDESECTION A-A TOP VIEWTop View Detail ADetail B without BCB Cover PlateA D NX 160-200KVAUPS Module Front View A CBB D CD 49 Battery Cabinet Right-SideViewsExternal Battery Cabinet Front Top Right Side845 33.2 965 38 2000 78.7 Front Right SideRear FrontSystem Input UPS OutputWithout Covers UPS Output Breakers Ground Busbar FRONTSystem Kirk-KeyFRONT Door OpenREAR A B1-B4 FRONT Without Covers 78.7 in LEFT SIDE Without Exterior Panels 965 38 in 2000RIGHT SIDE Without Exterior Panels LEFT SIDE Isometric View7.0OPERATION 7.1General Description7.1.1Bypass Supplies Battery Mode7.1.2Operating Modes Normal ModeParallel Redundancy Mode System Expansion Maintenance Mode8.1.1Display Panel Layout 8.0OPERATOR CONTROL AND DISPLAY PANELFigure 45 Overview of control panel Liquid Crystal Display LCD Mimic display LED2Bypass indicator Figure 47 Mimic display indicators locationLoad indicator Inverter indicatorFigure 48 Location of control buttons Inverter Off button Fault Clear buttonButton cover EPO button Silence On/Off button Inverter On buttonFigure 49 Buzzer location Data and settingsFigure 50 Sections of the LCD UPS systemTable 17 Icons for navigation keys Figure 51 Menu tree 8.8LCD Menus and Data ItemsOperator Control and Display Panel Figure 52 Language selection 8.9Language SelectionFigure 53 Set date and time 8.10Current Date and TimeStatus CurrentMessages History Log records menuFigure 56 Default screen 8.12.2Default Screen8.12Types of LCD Screens 8.12.1Opening Display8.12.3UPS Help Screen Press any key back to main menu8.12.4Screen Saver Window Figure 57 Help screen8.13.5Battery Self-TestAborted, Condition Not Met 8.13.4 Battery Capacity Test Confirmation8.13Pop-UpWindows 8.13.3System Self-Test9.1Liebert NX Operating Modes 9.0OPERATING INSTRUCTIONSTable 20 UPS operating modes 9.2UPS Startup 9.2.1Startup Procedure9.1.1Circuit 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 Mode9.5Emergency Shutdown With EPO 9.4Auto Restart9.8Multi-ModuleSystem Procedures 9.7Battery Protection9.7.1Battery Undervoltage Pre-Warning 9.7.2Battery End-of-DischargeEOD Protection3.Close Input breaker CB1 9.10Parallel System Startup 9.9Commissioning a Parallel System10.1Communication and Other User Terminals 10.1.2Power Output10.0OPTIONS 10.1.1Analog Input Interface10.1.5Configuring Baud Rates 10.1.4Communication and MonitoringTable 21 Liebert NX communication options Figure 62 Liebert IntelliSlot Web card display Table 22 Relay Card pin configuration Table 23 Relay card jumper configurationRelay Card Figure 63 MultiPort 4 card pin assignment MultiPort 4 CardFigure 64 Dust filter replacement 10.2.1Remote Alarm Monitor10.2LBS Mode—LoadBus Synchronization 10.3Replacing Dust FiltersTable 24 Torque specifications 11.0SPECIFICATIONS AND TECHNICAL DATATable 25 Battery torque rating Specifications and Technical DataTable 27 Parallel system current table 11.3Cable size and tightening torques Specifications and Technical Data 11.4Battery Run Times Table 37 Enersys battery run times in minutesTable 38 C&D Dynasty battery run times in minutes Specifications and Technical Data APPENDIX A - UPS STATUS MESSAGES Table 39 UPS status messagesUPS Status Messages UPS Status Messages Table 39 UPS status messagesEvent Message Description / Suggested Action if anyUPS Status Messages Table 39 UPS status messagesUPS Status Messages Table 39 UPS status messagesUPS Status Messages Table 39 UPS status messagesUPS Status Messages Page Of Mission-CriticalData And Applications Ensuring The High AvailabilityTechnical Support/ Service reducedcapitalequipment andoperatingcosts
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60HZ, 480V specifications

The Emerson 40-120KVA UPS is a high-performing uninterruptible power supply designed to ensure the reliability and continuity of critical operations across various industries. This UPS operates at 480VAC and 60Hz, making it suitable for environments where high-power demands are common.

One of the standout features of this UPS system is its modular design, which allows for easy scalability. Organizations can expand their power capacity as their needs grow, making the Emerson 40-120KVA UPS a future-proof investment. The system operates with high efficiency, minimizing energy consumption and operational costs. This is vital for data centers and industrial applications where energy management is increasingly important.

The Emerson UPS incorporates advanced digital signal processing technology, delivering real-time monitoring and control. This enhances the overall performance and reliability of the system, providing seamless power protection against voltage fluctuations, surges, and interruptions. With a total harmonic distortion of less than 5%, the UPS ensures a clean and stable power output, preserving the integrity of sensitive electronic equipment.

Another noteworthy characteristic of the Emerson 40-120KVA is its redundancy features. The system supports N+1 redundancy, allowing for one extra module to ensure uninterrupted service in case of a failure. This design offers peace of mind for critical applications, ensuring that there is no single point of failure.

User-friendliness is also a significant aspect of the Emerson UPS. The intuitive graphical user interface simplifies monitoring and management, allowing operators to assess system performance and status at a glance. Additionally, remote monitoring capabilities enable real-time tracking of system health and performance from anywhere, providing flexibility and oversight for facility managers.

The Emerson 40-120KVA UPS also meets stringent safety and compliance standards, ensuring reliable operation in demanding environments. Its robust design is suitable for a variety of applications, including information technology, telecommunications, and industrial processes. Overall, the Emerson 40-120KVA UPS stands out as a reliable, efficient, and versatile solution for businesses aiming to safeguard their critical power supply against any disruption.
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