Emerson 250-400kVA manual Cell Count Adjustment

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Operation

Battery Test

•Auto Test—Enable/Disable (default: disabled)

•Test Cycle, weeks—1 to 26 (default: 13 weeks)

•Time of day, hh:mm—Set Hour and Minute; sets the start time of the automatic battery test

•Start Date, mm dd, yyyyy—Set Month, Day and Year

•Test Duration, minutes—Automatic, 0.5 minute to 30% of full load Operating Time (default: automatic)

•Minimum Battery Voltage, lead-acid only—1.75VPC to 1.95VPC (default: 1.75VPC); this is the minimum voltage the battery test will stop.

Low Battery Warning Time

•Low Battery Warning Time, minutes—2 to 60, depending on configured batteries (default: 5 min- utes)

Battery Temperature

•Battery Temp Warning—30°C to 50°C (default: 40°C)

•Battery Temp Limit—35°C to 60°C (default: 50°C)

•Disconnect—Enable/Disable (default: disabled)

NOTE

If Disconnect is set to “Enable’ and the Battery Temp Limit is met, the Battery breaker will open.

Figure 13 Battery Management Parameters

Cell Count Adjustment

•Cell Count Adjustment— -12 cells to +6 cells (default: 0)

Float Voltage

•Battery Float Voltage, Vpc—2.15 to 2.3 (default: 2.25)

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Contents Liebert NXL Contacting Liebert for Support Battery Cabinet PrecautionsTable of Contents Specifications Figures Page Important Safety Instructions General Description Normal ModeModes of Operation Options Bypass ModeBattery Mode Maintenance BypassIntroduction Main component locations FeaturesMimic display Monitor/mimic display example Utility fail Monitor/mimic display example Normal power flowMonitor/mimic display example Load on bypass, UPS On Menu tree Touchscreen Navigation Main Display ScreenRating Parameters Configurations Menu RatingSystem Settings parameters User SettingsAdjustable setpoints parameters Adjustable SetpointsCell Count Adjustment Status Reports Menu Event ManagementStartup Menu Shutdown menu Shutdown MenuTransfer Menu Transfer/retransfer commandsTime remaining display Battery Management MenuDisplay summary see Figure Silence ResetMetering HelpLoad on bypass, UPS available OK to TransferInput power fail, load on battery Input Power Failure-Load on BatteryEmergency Module Off Off BatteryRemote Emergency Power Off Manual ProceduresStartup Procedure Startup commands Maintenance Bypass Load Transfers Load Transfer ProceduresTransfer Procedure Re-Transfer ProcedureMaintenance Bypass Load Transfers-If Load is on UPS Bypass Automatic Operations Shutdown ProceduresUPS Shutdown Procedure System Shutdown ProcedureCurrent-versus-time curves of overload capacity Automatic Transfers to Bypass Overload ConditionAutomatic Retransfers to UPS Automatic Transfers to Bypass, UPS System FaultsSafety Precautions Routine Maintenance Liebert ServicesAir Filters Record LogComponent Expected Life Replace Battery MaintenanceUPS component service life Limited Life ComponentsBattery Safety Precautions Battery voltage, nominal and float Matching Battery Cabinets-OptionalBattery retorque values Torque Requirements Torque specifications, unless otherwise labeledDetecting Trouble Rack-Mounted BatteriesUpstream Feeder Circuit Breaker Setting Inspections Reporting a ProblemCorrective Actions Environmental Conditions Battery OperationEnvironmental specifications Parameter SpecificationInput Parameters Electrical specificationsBattery & DC Parameters Liebert NXL Model Size 250System Parameter Liebert NXL Model SizePhysical Parameters & Standards, in mm Specifications Event Message Event Definition Recommended Action Liebert NXL alarm and status messagesObserve 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 That Ne tIti Ti n