Emerson 480V Considerations in Moving the Liebert NX, Mechanical Considerations, Battery Location

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Installation

Battery Location

Batteries must be installed in Liebert NX 480V battery cabinets or battery room. Temperature is a major factor in determining battery life and capacity. Battery manufacturers recommend an operat- ing temperature of 77°F (25°C). Ambient temperatures higher than this reduce battery life; tempera- tures lower than this reduce battery capacity. In a typical installation, battery temperature should be maintained between 74°F and 80°F (23-27°C). Batteries should be placed where there are no main heat sources or air inlets to prevent portions of batteries from being either much warmer or much cooler than other parts of the batteries.

1.4.3Special Considerations for Parallel Systems

1.Consider the grounding configuration of your system before finalizing module placement. For optimal ground performance, the Liebert NX modules should be close together.

2.For optimal load-sharing performance, the UPS output cables should be approximately the same length, plus or minus 20 percent.

3.Position modules in such a way as to minimize the length of power cables and control wiring between UPS modules and the paralleling cabinet.

1.5Considerations in Moving the Liebert NX

Ensure that the UPS weight is within the designated surface weight loading (lb./ft2 or kg/cm2) of any handling equipment. See Table 7 for weights of various units.

To move the UPS and optional battery cabinets:

•The Liebert NX may be rolled on its casters when moving the unit a short distance. For longer dis- tances, move the UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.

The optional battery cabinets should be moved with a forklift or similar equipment.

! WARNING

Ensure that any equipment that will be used to move the Liebert NX has sufficient lifting capacity. The Liebert NX weight ranges from 1180 to 1290 lb. (535 to 585kg). See Table 7 for details. The UPS presents a tipping hazard. Do not tilt the Liebert NX further than 15 degrees from vertical.

The UPS is fitted with casters—take care to prevent movement when unbolting the equipment from its shipping pallet. Ensure adequate personnel and lifting equipment are available when taking the Liebert NX off its shipping pallet. Do not tilt the unit more than 15 degrees from center.

! WARNING

The casters are strong enough for movement across even surfaces only. Casters may fail if they are subjected to shock loading, such as being dropped or rolled over holes in the floor or obstructions. Such failure may cause the unit to tip over, injuring personnel and damaging the equipment.

Care must be taken when maneuvering cabinets fitted with batteries. Keep such moves to a minimum. For further information, see Battery Cabinet Precautions on page 2.

Final Position

When the equipment has been finally positioned, ensure that the adjustable stops are set so that the UPS will remain stationary and stable (see 6.0 - Installation Drawings).

1.6Mechanical Considerations

The Liebert NX is constructed with a steel frame and removable panels. Top and side panels are secured to the chassis by screws. The doors may be opened for access to power connections bars, aux- iliary terminal blocks and power switches.

The UPS comes with an operator control panel, which provides basic operational status and alarm information. Cooling is provided by internal fans. The unit sits on four casters. Adjustable stops are provided to prevent the UPS from moving once it has been moved to its final position.

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Contents Liebert NX UPS Page Table of Contents Operator Control and Display Panel UPS SpecificationsOptions Operating Instructions Pop-Up WindowsSpecifications and Technical Data Appendix a UPS Status MessagesTables Page Important Safety Instructions Battery Cabinet Precautions Glossary of Symbols Installation External InspectionsUPS Location Internal InspectionsPreliminary Checks Mechanical Considerations Battery LocationConsiderations in Moving the Liebert NX Special Considerations for Parallel SystemsCable Entry Floor InstallationClearances System CompositionCabinet arrangement-Liebert NX units and battery cabinets UPS Lug Size and Torque Requirements Power CablingCable Rating UPS Input Configuration Cabling GuidelinesCable Connections Input and output busbarsUPS Rectifier and Bypass Input Supply Safety GroundProtective Devices Common Input Connections Cabling ProcedureOutput System Connections-Ensure Correct Phase Rotation Dual Input ConnectionsControl Cables Frequency Converter ModeMonitor Board Features Dry Contacts Input Dry Contacts Maintenance Bypass Cabinet InterfaceMaintenance bypass cabinet interface Input dry contacts atBCB Control Interface BCB control interfaceOutput Dry Contacts Inverter mode relay centerMain input fault relay center Output dry contact relaysIndicates Pin EPO Input-OptionalEPO input contact relays Safety IntroductionExternal Battery Cabinet Installation Battery CabinetsInsulated Post Tray Handle For Cabling Connecting the BatteriesInstallation Considerations BCB Shunt Trip Connecting the Battery Cabinet to the UPSNon-Standard Batteries This power must be UPS protected Alber Monitoring System-OptionalPerformance Requirements LBS Cable and SettingsLoad Bus Synchronization LBS CableGeneral Configuring Parallel System OperationFeatures of Parallel System Operation Modes Summary Installing Parallel SystemOperating Principles Redundancy Paralleling Conditions for Parallel System Cabinet InstallationPower Cables Preliminary ChecksCables InterconnectingAuxiliary Dry Contact Cables To Load Q1Ext Q2ExtQByp Normally Open EPO Normally Closed EPOUPS mechanical characteristics UPS Mechanical CharacteristicsEnvironmental characteristics Conformity and StandardsUPS Electrical Characteristics UPS terminalRated Power kVA 100 120 Rectifier input powerLiebert approved replacement batteries 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 Front Rear SystemRear FRONTOutput Run From Conductors Ph A, B, C UPS Outputs Ph A, B, C System InputPh A, B, C UPS Inputs AC OutputGround UPS Utility UPS #1-UPS #4 Module AC Ph A, B, C UPS InputsPh A, B, C System Outputs Isometric View U3819301Single module block diagram dual input configuration General DescriptionBypass Mode Normal ModeBattery Mode Bypass SuppliesMaintenance Mode Parallel Redundancy Mode System ExpansionOperator Control Panel Display Panel LayoutMimic indicators Control buttons Navigation keys Detailed view of control panelMimic Display Indicators Mimic display status indicatorsControl Buttons Control buttonsAudible Buzzer LCD OverviewIcons for navigation keys Navigation KeysUPS System Information Description of items in UPS system windowLCD Menus and Data Items Mains Descriptions of UPS menus and data window itemsMenu Type Item Type Explanation InputTests Start/stop BatteryLanguage Selection Current Date and Time Set date and timeUPS Status Messages Current status and history log recordsOpening Display Default ScreenTypes of LCD Screens UPS Help Screen Screen Saver WindowPop-Up Windows Liebert NX Operating Modes UPS operating modesCircuit Breakers Circuit breakersUPS Startup Startup ProcedureIndicator State Switch from Normal Mode to Bypass Mode Switch from Bypass Mode to Normal ModeMaintenance Bypass Procedure and Powering Down the UPS Auto Restart Emergency Shutdown With EPOBattery Undervoltage Pre-Warning Battery ProtectionMulti-Module System Procedures Battery End-of-Discharge EOD ProtectionTie breaker Inserting One Module into a Multi-Module System LED Function StatusShutdown Procedure-Complete UPS and Load Shutdown Commissioning a Parallel SystemParallel System Start Up Analog Input Interface Power OutputCommunication and Other User Terminals Liebert IntelliSlot CommunicationComments See 10.1.5 ConfiguringLiebert NX communication options Baud RatesConfiguring Baud Rates Liebert IntelliSlot Web card display Relay Card Relay Card pin configurationRelay card jumper configuration Pin Function OperationPin Description MultiPort 4 CardAssignment Replacing Dust Filters Remote Alarm MonitorLBS Mode-Load Bus Synchronization Lug Size and Torque Requirements Torque specificationsBattery torque rating Cable Lengths Floor to Connection Point Inside UPSDistance to connection points on the Liebert NX UPS Parallel system current tableLead/Lag ratings External cabinet dimensions, including side panelsCable size and tightening torques 250 10 N*m Battery Run Times Estimated battery run time, minutesEvent Message Description / Suggested Action if any Services at 800-543-2378 for assistanceUPS status messages Bypass voltage exceeds the limit High ambient air temperatureBypass voltage is beyond the normal range Software according to the customer’s agreementInverter STS Fail Error can also leads to the alarmAlarm if applicable Condition is removedEmergency Power Off EPOUPS status messages UPS Status Messages Page Ti n Ne tIti 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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