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Emerson 250-400kVA manual Liebert NXL

Models: 250-400kVA

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Specs Maintenance Configurations Menu Rating Reporting a Problem Reset Transfer/retransfer commands Battery Cabinet Precautions Manual Procedures Adjustable Setpoints User Settings

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AC Power

For Business-Critical Continuity™

Liebert® NXL™

Operation and Maintenance Manual –250-400kVA, 60Hz, Three Phase Single-Module

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Emerson 250-400kVA manual Liebert NXL

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Contents

Liebert NXL Contacting Liebert for Support Battery Cabinet Precautions Table of Contents Specifications Figures Page Important Safety Instructions General Description Normal ModeModes of Operation Battery Mode Bypass ModeMaintenance Bypass Options Introduction Main component locations Features Mimic display Monitor/mimic display example Utility fail Monitor/mimic display example Normal power flow Monitor/mimic display example Load on bypass, UPS On Menu tree Touchscreen Navigation Main Display Screen Rating Parameters Configurations Menu Rating System Settings parameters User Settings Adjustable setpoints parameters Adjustable Setpoints Cell Count Adjustment Status Reports Menu Event ManagementStartup Menu Shutdown menu Shutdown Menu Transfer Menu Transfer/retransfer commands Time remaining display Battery Management Menu Display summary see Figure Metering ResetHelp Silence Load on bypass, UPS available OK to Transfer Input power fail, load on battery Input Power Failure-Load on Battery Emergency Module Off Off Battery Remote Emergency Power Off Manual Procedures Startup Procedure Startup commands Transfer Procedure Load Transfer ProceduresRe-Transfer Procedure Maintenance Bypass Load Transfers Maintenance Bypass Load Transfers-If Load is on UPS Bypass UPS Shutdown Procedure Shutdown ProceduresSystem Shutdown Procedure Automatic Operations Current-versus-time curves of overload capacity Automatic Transfers to Bypass Overload Condition Automatic Retransfers to UPS Automatic Transfers to Bypass, UPS System Faults Safety Precautions Routine Maintenance Liebert Services Air Filters Record Log UPS component service life Battery MaintenanceLimited Life Components Component Expected Life Replace Battery Safety Precautions Battery voltage, nominal and float Matching Battery Cabinets-OptionalBattery retorque values Detecting Trouble Torque specifications, unless otherwise labeledRack-Mounted Batteries Torque Requirements Upstream Feeder Circuit Breaker Setting Inspections Reporting a ProblemCorrective Actions Environmental specifications Battery OperationParameter Specification Environmental Conditions Battery & DC Parameters Electrical specificationsLiebert NXL Model Size 250 Input Parameters System Parameter Liebert NXL Model SizePhysical Parameters & Standards, in mm Specifications Event Message Event Definition Recommended Action Liebert NXL alarm and status messages Observe the One-Line Display. If the input line is Observe the One-Line Display. To identify which Do not Attempt to Close CB3 Until Reset Displayed on the Module Output Meter. If UPS controls monitor the DC Bus positive Resolve the issue that precipitated the EPO Check the One-Line Display for system status UPS, to transfer back to Inverter If this alarm occurs on an operational unit, it Attempt to manually close the disconnect by Module Output Meter. If the load is less than Output Power Factor. If the displayed power factor Until a service visit has been made and action taken When manual transfers are enabled Under normal conditions, no user action is required Observe the One-Line Display and the Active Event If the command to terminate Regeneration Mode If the alarm cannot be reset, or if the alarm condition UPS Alarm and Status Messages UPS Alarm and Status Messages Page Iti Ne tTi n That

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