Emerson 480V user manual Introduction, Safety

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Battery Installation

3.0BATTERY INSTALLATION

3.1Introduction

If using multiple sets of batteries connected in parallel to provide the required battery backup run times, fit each set with an isolating device to permit working on one of the battery sets while leaving the others in service and providing backup protection.

When replacing batteries, replace with the same manufacturer and type, or equivalent. See your Lie- bert representative for a list of approved batteries.

3.2Safety

Special care should be taken when working with the batteries associated with the Liebert NX system equipment. When all batteries are connected together, the battery terminal voltage may exceed 480V and is POTENTIALLY LETHAL.

! WARNING

The Liebert NX's internal batteries are connected and energized even if the UPS is turned Off. To minimize the risk of injury, a qualified service person should disconnect the batteries before any maintenance is performed on the unit.

A battery can present a risk of electrical shock and high short circuit current. The following precautions should be observed when working on batteries:

• Remove watches, rings and other metal objects.

• Use tools with insulated handles.

• Wear rubber gloves and boots.

• Do not lay tools or metal parts on top of batteries.

• Disconnect charging source prior to connecting or disconnecting battery terminals.

! CAUTION

To reduce the risk of fire, connect only to a circuit provided with DC amperes (see Table 12) maximum branch circuit overcurrent protection in accordance with the National Electric Code, ANSI/NFPA 70.

NOTE

The maximum available fault current from the battery supply is 8500A and the DC voltage rating of the battery supply overcurrent protective device that is to be installed near the battery supply must be at least 600VDC.

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Contents Liebert NX UPS Page Table of Contents Operator Control and Display Panel UPS SpecificationsOptions Pop-Up Windows Operating InstructionsAppendix a UPS Status Messages Specifications and Technical DataTables Page Important Safety Instructions Battery Cabinet Precautions Glossary of Symbols External Inspections InstallationUPS Location Internal InspectionsPreliminary Checks Considerations in Moving the Liebert NX Battery LocationMechanical Considerations Special Considerations for Parallel SystemsClearances Floor InstallationCable Entry System CompositionCabinet arrangement-Liebert NX units and battery cabinets UPS Lug Size and Torque Requirements Power CablingCable Rating Cabling Guidelines UPS Input ConfigurationInput and output busbars Cable ConnectionsUPS Rectifier and Bypass Input Supply Safety GroundProtective Devices Output System Connections-Ensure Correct Phase Rotation Cabling ProcedureCommon Input Connections Dual Input ConnectionsControl Cables Frequency Converter ModeMonitor Board Features Dry Contacts Maintenance bypass cabinet interface Maintenance Bypass Cabinet InterfaceInput Dry Contacts Input dry contacts atBCB control interface BCB Control InterfaceMain input fault relay center Inverter mode relay centerOutput Dry Contacts Output dry contact relaysIndicates Pin EPO Input-OptionalEPO input contact relays Introduction SafetyBattery Cabinets External Battery Cabinet InstallationInsulated Post Tray Handle For Cabling Connecting the BatteriesInstallation Considerations BCB Shunt Trip Connecting the Battery Cabinet to the UPSNon-Standard Batteries Alber Monitoring System-Optional This power must be UPS protectedLoad Bus Synchronization LBS Cable and SettingsPerformance Requirements LBS CableGeneral Configuring Parallel System OperationFeatures of Parallel System Operation Modes Summary Installing Parallel SystemOperating Principles Redundancy Paralleling Power Cables Cabinet InstallationConditions for Parallel System Preliminary ChecksCables InterconnectingAuxiliary Dry Contact Cables To Load Q1Ext Q2ExtQByp Normally Closed EPO Normally Open EPOEnvironmental characteristics UPS Mechanical CharacteristicsUPS mechanical characteristics Conformity and StandardsUPS terminal UPS Electrical CharacteristicsLiebert approved replacement batteries Rectifier input powerRated Power kVA 100 120 Battery Manufacturer Models SuppliedBypass Input DC Intermediate CircuitInverter Output Left Side GND Left Side View Front View Max. Door Swing U3819205 530628 Pg , Rev BattExt Auxiliary Contacts External Battery CabinetBattery Breaker Top Top Front Right Side System Front RearRear FRONTOutput Run From Conductors Ph A, B, C UPS Inputs Ph A, B, C System InputPh A, B, C UPS Outputs AC OutputGround UPS Utility UPS #1-UPS #4 Module AC Ph A, B, C UPS InputsPh A, B, C System Outputs U3819301 Isometric ViewGeneral Description Single module block diagram dual input configurationBattery Mode Normal ModeBypass Mode Bypass SuppliesParallel Redundancy Mode System Expansion Maintenance ModeDisplay Panel Layout Operator Control PanelDetailed view of control panel Mimic indicators Control buttons Navigation keysMimic display status indicators Mimic Display IndicatorsControl buttons Control ButtonsLCD Overview Audible BuzzerUPS System Information Navigation KeysIcons for navigation keys Description of items in UPS system windowLCD Menus and Data Items Menu Type Item Type Explanation Descriptions of UPS menus and data window itemsMains InputTests Start/stop BatteryLanguage Selection Set date and time Current Date and TimeCurrent status and history log records UPS Status MessagesOpening Display Default ScreenTypes of LCD Screens Screen Saver Window UPS Help ScreenPop-Up Windows UPS operating modes Liebert NX Operating ModesCircuit breakers Circuit BreakersUPS Startup Startup ProcedureIndicator State Switch from Bypass Mode to Normal Mode Switch from Normal Mode to Bypass ModeMaintenance Bypass Procedure and Powering Down the UPS Emergency Shutdown With EPO Auto RestartMulti-Module System Procedures Battery ProtectionBattery Undervoltage Pre-Warning Battery End-of-Discharge EOD ProtectionTie breaker LED Function Status Inserting One Module into a Multi-Module SystemCommissioning a Parallel System Shutdown Procedure-Complete UPS and Load ShutdownParallel System Start Up Communication and Other User Terminals Power OutputAnalog Input Interface Liebert IntelliSlot CommunicationLiebert NX communication options See 10.1.5 ConfiguringComments Baud RatesConfiguring Baud Rates Liebert IntelliSlot Web card display Relay card jumper configuration Relay Card pin configurationRelay Card Pin Function OperationPin Description MultiPort 4 CardAssignment Replacing Dust Filters Remote Alarm MonitorLBS Mode-Load Bus Synchronization Battery torque rating Torque specificationsLug Size and Torque Requirements Cable Lengths Floor to Connection Point Inside UPSParallel system current table Distance to connection points on the Liebert NX UPSLead/Lag ratings External cabinet dimensions, including side panelsCable size and tightening torques 250 10 N*m Estimated battery run time, minutes Battery Run TimesEvent Message Description / Suggested Action if any Services at 800-543-2378 for assistanceUPS status messages Bypass voltage is beyond the normal range High ambient air temperatureBypass voltage exceeds the limit Software according to the customer’s agreementAlarm if applicable Error can also leads to the alarmInverter STS Fail Condition is removedEPO Emergency Power OffUPS status messages UPS Status Messages Page Iti Ne tTi n That
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480V specifications

The Emerson 480V power systems play a critical role in modern industrial applications, providing reliable and efficient power distribution. These systems are designed for facilities that require robust performance and operational efficiency while adhering to safety regulations. With voltage ratings at 480V, they cater primarily to industries such as manufacturing, data centers, and commercial buildings.

One of the main features of the Emerson 480V systems is their scalability. These systems can be easily adapted and expanded as operational demands grow, thereby reducing initial investment costs and providing a flexible solution for evolving business needs. This ability to scale is crucial in a fast-paced environment where demands can change rapidly.

The Emerson 480V systems also incorporate advanced technologies for improved performance and safety. One key technology is the use of smart grid solutions. This enables real-time monitoring, diagnostics, and control, allowing facility managers to optimize energy consumption and reduce operational costs. Furthermore, these systems often include integrated protection devices that enhance safety measures by minimizing the risk of electrical faults, overloads, or short circuits.

Energy efficiency is another characteristic that distinguishes Emerson 480V systems from traditional alternatives. With advanced power management features, these systems effectively reduce energy waste and lower electricity bills. Emerson’s commitment to sustainability is evident in its designs, which aim to minimize environmental impact through energy-efficient technologies.

The build quality of Emerson 480V systems is also noteworthy. They are designed to withstand harsh industrial environments and are constructed with high-grade materials that promote longevity and reliability. The modular design allows for easy maintenance and repair, which further extends the lifespan of the system.

Additionally, Emerson 480V systems are equipped with user-friendly interfaces that facilitate ease of operation. This ensures that operators can efficiently manage and control power distribution without extensive training. The combination of performance, scalability, safety features, and user-centric design makes Emerson 480V systems an ideal choice for businesses looking to enhance their electrical infrastructure.

In summary, Emerson 480V power systems are a leading solution for industrial power distribution, characterized by their scalability, smart technology integration, energy efficiency, robust build quality, and user-friendly operation. These attributes make them a valuable investment for any organization aiming to improve its electrical management and operational performance.
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