Emerson 60HZ, 480V 4.1Load Bus Synchronization, 4.0OPTIONS, 4.1.1Performance Requirements

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4.0OPTIONS

Options

4.0OPTIONS

4.1Load Bus Synchronization

The Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or parallel UPS systems in synchronization even when the systems are operating in different modes and even when either or both systems are operating on batteries. When the LBS is used, one UPS system is desig- nated as master, the other as slave.

The LBS option is typically used with dual-corded equipment or with either the Liebert Smart- Switch™ or Liebert Static Transfer Switch™ (STS) for single-corded equipment.

4.1.1Performance Requirements

The LBS operates under the following conditions:

•Both master and slave are on inverter

(either system may be on inverter through the rectifier or on inverter through the batteries)

•Master on inverter and slave on bypass

•Master on bypass and slave on inverter

•Master and slave on bypass IF the bypass source is the same for both systems

4.1.2LBS Cable and Settings

For Liebert NX-to-Liebert NX dual bus configuration, only one optional LBS cable is required, the built-in LBS will operate normally without an extra LBS control box or interface box. The LBS port is X4 on the parallel board (M3). The parallel board is on the interior of the Liebert NX, above and left of the power electronics; see Figure 23.

An optional, 9-pin LBS cable is used to connect two UPS systems through each system’s DB9 port on its parallel board. For two parallel systems, the LBS cable can be mounted between any two units belonging to different parallel systems. For information about the LBS kit or to order the optional equipment, see your local Liebert representative.

The LBS cable is connected as illustrated in Figures 13 and 14.

Figure 13 Load Bus Synchronization cable connection in single module systems

Parallel Board

 

X3

X4

 

X2-1

X2-2

X1-1

X1-2

LBS Cable

Parallel Board

X4

 

X2-1

X2-2

X1-1

X1-2

The parallel board is on the interior of the Liebert NX, above and left of the power electronics; see Figure 23

UPS Module or

UPS Module or

System #1

System #2

26

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Contents User Manual–40-200kVA, 480V,60Hz Liebert NX UPSAC Power 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 SAVE THESE INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONSBattery Cabinet Precautions • Remove watches, rings and other metal objects AC input AC output GLOSSARY OF SYMBOLSRisk of electrical shock Requests the user to consult the manual1.0INSTALLATION 1.1External Inspections1.3Preliminary Checks 1.2.1Storing for Delayed Installation1.2Internal Inspections 1.4UPS Location1.6Mechanical Considerations Battery Location1.5Considerations in Moving the Liebert NX 1.4.3Special Considerations for Parallel Systems1.6.3Cable Entry 1.6.2Floor Installation1.6.1Clearances System CompositionFront of Units Liebert NX Battery CabinetLiebert Bypass2.1.1Cable Rating 2.1Power Cabling2.0ELECTRICAL CONNECTIONS Lug Size and Torque Requirements2.1.2UPS Input Configuration 2.1.3Cabling Guidelines2.1.4Cable Connections Liebert NX 40-120kVAConnectionsLiebert NX 160-200kVAConnections Figure 4 Input and output busbars2.1.6Protective Devices 2.1.5Safety Ground2.1.7Cabling Procedure UPS Rectifier and Bypass Input SupplyDual Input Connections Common Input ConnectionsFrequency Converter Mode 2.2Control Cables 2.2.1Monitor Board FeaturesFigure 5 Monitor board U2 2.3Dry Contacts 2.3.1Input Dry Contacts 2.3.2Maintenance Bypass Cabinet InterfaceTable 2 Maintenance bypass cabinet interface Figure 7 Input dry contactsTable 3 BCB control interface 2.3.3Battery Circuit Breaker Control Interface2.3.4Output Dry Contacts Output dry contact relaysEPO - NO Figure 9 EPO wiring2.3.5EPO Input—Optional EPO - NC3.0BATTERY INSTALLATION 3.2Safety3.1Introduction 3.3.1Battery Cabinets 3.3External Battery Cabinet InstallationFigure 10 Battery cabinets for Liebert NX 3.3.3Installation Considerations 3.3.2Connecting the BatteriesFigure 11 Battery cabinet—details 3.4Non-StandardBatteries 3.3.4Connecting the Battery Cabinet to the UPSFigure 12 Battery tray and supports 3.5BCB Shunt TripThis power must be UPS protected 3.6Alber Monitoring System—Optional4.0OPTIONS 4.1.2LBS Cable and Settings4.1Load Bus Synchronization 4.1.1Performance Requirements4.2.2Features of Parallel System 4.2Configuring Parallel System Operation4.2.1General Liebert NX UPS 40-200kVA 480V, 3W Input 480V DC Battery InputFigure 15 Parallel system block diagram 480V, 3W UOB Output4.2.3Operating Principles Redundancy Paralleling •Battery Mode Operation•Maintenance Bypass Mode Operation 4.2.4Operation Modes Summary4.3.4Power Cables 4.3Installing Parallel System4.3.2Cabinet Installation 4.3.1Conditions for Parallel SystemFor startup procedure, 9.2 - UPS Startup Auxiliary Dry Contact CablesX2:3 4.3.6Emergency Power Off EPOFigure 20 Connecting EPO push button X2:4Environmental characteristics 5.0UPS SPECIFICATIONSUPS mechanical characteristics 5.4UPS Electrical Characteristics Table 8 UPS terminalUPS terminal continued Table 9 Rectifier input power5.4.1Input Rectifier Table 10 Input voltage window with derating5.4.3Inverter Output Table 11 Liebert approved replacement batteries5.4.2DC Intermediate Circuit Table 12 DC intermediate circuit5.4.4 Bypass Input Table 14 Bypass inputLeft Side FrontFront Detail AParallel Board 1239mm FRONT VIEWLEFT VIEW 2000mmTOP VIEW Front of UPS BOTTOM VIEW Front of UPSInstallation Drawings DETAIL A 224mm DETAIL A8.83 609.3 24 872.2 34.3 U3819205 SECTION A-A RIGHT SIDEFRONT TOP VIEWDetail B Detail ATop View without BCB Cover Plate49 Battery Cabinet Right-SideViews A D NX 160-200KVAUPS Module Front View A CBB D CDBattery Breaker Top Right Side Front845 33.2 965 38 2000 78.7 Right Side FrontSystem Input FrontRear UPS OutputWithout Covers System FRONTUPS Output Breakers Ground Busbar Kirk-KeyDoor Open FRONTREAR A B1-B4 FRONT Without Covers RIGHT SIDE Without Exterior Panels LEFT SIDE Without Exterior Panels 965 38 in 200078.7 in LEFT SIDE Isometric View7.1General Description 7.0OPERATION7.1.2Operating Modes Battery Mode7.1.1Bypass Supplies Normal ModeMaintenance Mode Parallel Redundancy Mode System ExpansionFigure 45 Overview of control panel 8.0OPERATOR CONTROL AND DISPLAY PANEL8.1.1Display Panel Layout Liquid Crystal Display LCD Mimic display LED2Load indicator Figure 47 Mimic display indicators locationBypass indicator Inverter indicatorButton cover EPO button Inverter Off button Fault Clear buttonFigure 48 Location of control buttons Silence On/Off button Inverter On buttonFigure 50 Sections of the LCD Data and settingsFigure 49 Buzzer location UPS systemTable 17 Icons for navigation keys 8.8LCD Menus and Data Items Figure 51 Menu treeOperator Control and Display Panel 8.9Language Selection Figure 52 Language selection8.10Current Date and Time Figure 53 Set date and timeMessages CurrentStatus History Log records menu8.12Types of LCD Screens 8.12.2Default ScreenFigure 56 Default screen 8.12.1Opening Display8.12.4Screen Saver Window Press any key back to main menu8.12.3UPS Help Screen Figure 57 Help screen8.13Pop-UpWindows 8.13.4 Battery Capacity Test Confirmation8.13.5Battery Self-TestAborted, Condition Not Met 8.13.3System Self-Test9.0OPERATING INSTRUCTIONS 9.1Liebert NX Operating ModesTable 20 UPS operating modes 9.1.1Circuit Breakers 9.2.1Startup Procedure9.2UPS Startup Figure 59 Circuit breakers•Close CB5 CB1, CB2, CB3 and CB5 are closed Switch from Normal Mode to Bypass Mode Switch from Bypass Mode to Normal Mode9.4Auto Restart 9.5Emergency Shutdown With EPO9.7.1Battery Undervoltage Pre-Warning 9.7Battery Protection9.8Multi-ModuleSystem Procedures 9.7.2Battery End-of-DischargeEOD Protection3.Close Input breaker CB1 9.9Commissioning a Parallel System 9.10Parallel System Startup10.0OPTIONS 10.1.2Power Output10.1Communication and Other User Terminals 10.1.1Analog Input Interface10.1.4Communication and Monitoring 10.1.5Configuring Baud RatesTable 21 Liebert NX communication options Figure 62 Liebert IntelliSlot Web card display Table 23 Relay card jumper configuration Table 22 Relay Card pin configurationRelay Card MultiPort 4 Card Figure 63 MultiPort 4 card pin assignment10.2LBS Mode—LoadBus Synchronization 10.2.1Remote Alarm MonitorFigure 64 Dust filter replacement 10.3Replacing Dust FiltersTable 25 Battery torque rating 11.0SPECIFICATIONS AND TECHNICAL DATATable 24 Torque specifications Specifications and Technical DataTable 27 Parallel system current table 11.3Cable size and tightening torques Specifications and Technical Data Table 37 Enersys battery run times in minutes 11.4Battery Run TimesTable 38 C&D Dynasty battery run times in minutes Table 38 C&D Dynasty battery run times in minutes Table 39 UPS status messages APPENDIX A - UPS STATUS MESSAGESUPS Status Messages Event Message Table 39 UPS status messagesUPS Status Messages Description / Suggested Action if anyTable 39 UPS status messages UPS Status MessagesTable 39 UPS status messages UPS Status MessagesTable 39 UPS status messages UPS Status MessagesUPS Status Messages Page Technical Support/ Service Ensuring The High AvailabilityOf Mission-CriticalData And Applications 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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