Emerson manual Liebert NX

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AC Power

For Business-Critical Continuity™

Liebert® NX™

Operation and Maintenance Manual –225-600kVA,Three-Phase, Single-Module & Multi-Module

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Contents Liebert NX Product Warranty Registration Table of Contents Specifications MaintenanceOptions Figures Page Important Safety Instructions Battery Cabinet Precautions General Description Typical single module UPS system one-line diagramBypass Mode Normal ModeBattery Mode Maintenance BypassOptions Main component locations-225 to 300kVA Liebert NX FeaturesFront Doors Removed Main display screen, typical Main Display Screen Touchscreen NavigationSystem Status Status Rectifier Bypass Inverter Chg/Boost Battery LoadEvents Log Menu Measures MenuBattery Status Battery MenuBattery Test Battery parameters Battery MeasuresLife menu Life MenuAnimated One Line Mimic Settings MenuRectifier Functional Block About MenuLoad on bypass, UPS available Load on BypassOff DC Source Input Power Failure-Load on DC SourceManual Operations-All Systems Remote Emergency Power OffStartup-Single Module System Startup-1+N System Retransfer Procedure Transfer ProcedureLoad Transfer and Retransfer-Single Module System 6 1+N System Transfer load from UPS to Bypass Shut Down-Single Module UPS System 7 1+N System Transfer load from Bypass to UPS9 1+N System Shutdown Load Transfer-1+N System Add a UPS to the System Collective Load Transfer-1+N System Remove a UPS from System CollectiveOverloads Without Transfer Automatic OperationsCurrent-versus-time curves of overload capacity Automatic Transfers to Bypass Overload Condition Automatic Transfers to Bypass, UPS System FaultsAutomatic Retransfers to UPS MopUPS Shutdown and Monitoring Software Remote Alarm UnitConnectivity Manage UPS AdapterConnectivity combinations Available Selectable Output Contacts Available Selectable Input ContactsSafety Precautions Maintenance Agreements The Signature Program Liebert ServicesProfessional Startup TrainingRecord Log Routine MaintenanceAir Filters UPS component service life Battery MaintenanceLimited Life Components Component Expected Life ReplaceBattery Safety Precautions Battery voltage, nominal and float Matching Battery Cabinets-OptionalBattery Voltage, VDC Number of Cells Nominal Float 240 480 527Battery Mfr Battery Model # In-lb N-m Battery retorque valuesOther DC Sources Retorque ValueUpstream Feeder Circuit Breaker Setting Inspections Reporting a ProblemDetecting Trouble Items to check includeEnvironmental specifications Battery OperationDC Sources Other DC SourcesPhysical specifications Electrical specificationsSpecifications LiebertNX Page Is t Ne tTwor k Care