Emerson 250-400kVA guide

Operation

Figure 7 Monitor/mimic display example: Load on bypass, UPS On

Green – Normal

Orange – Marginal

Gray – Absent

Black – Unknown

Figure 8 Monitor/mimic display example: Load on bypass, UPS module off

Green – Normal

Orange – Marginal

Gray – Absent

Black – Unknown

8

Image 14

Emerson 250-400kVA manual Monitor/mimic display example Load on bypass, UPS On

Contents

Liebert NXL Battery Cabinet Precautions Contacting Liebert for Support Table of Contents Specifications Figures Page Important Safety Instructions Modes of Operation Normal ModeGeneral Description Maintenance Bypass Bypass ModeBattery Mode Options Introduction Features Main component locations Mimic display Monitor/mimic display example Normal power flow Monitor/mimic display example Utility fail Monitor/mimic display example Load on bypass, UPS On Touchscreen Navigation Main Display Screen Menu tree Configurations Menu Rating Rating Parameters User Settings System Settings parameters Adjustable Setpoints Adjustable setpoints parameters Cell Count Adjustment Startup Menu Event ManagementStatus Reports Menu Shutdown Menu Shutdown menu Transfer/retransfer commands Transfer Menu Battery Management Menu Time remaining display Display summary see Figure Help ResetMetering Silence OK to Transfer Load on bypass, UPS available Input Power Failure-Load on Battery Input power fail, load on battery Off Battery Emergency Module Off Manual Procedures Remote Emergency Power Off Startup Procedure Startup commands Re-Transfer Procedure Load Transfer ProceduresTransfer Procedure Maintenance Bypass Load Transfers Maintenance Bypass Load Transfers-If Load is on UPS Bypass System Shutdown Procedure Shutdown ProceduresUPS Shutdown Procedure Automatic Operations Automatic Transfers to Bypass Overload Condition Current-versus-time curves of overload capacity Automatic Transfers to Bypass, UPS System Faults Automatic Retransfers to UPS Safety Precautions Liebert Services Routine Maintenance Record Log Air Filters Limited Life Components Battery MaintenanceUPS component service life Component Expected Life Replace Battery Safety Precautions Battery retorque values Matching Battery Cabinets-OptionalBattery voltage, nominal and float Rack-Mounted Batteries Torque specifications, unless otherwise labeledDetecting Trouble Torque Requirements Corrective Actions Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Parameter Specification Battery OperationEnvironmental specifications Environmental Conditions Liebert NXL Model Size 250 Electrical specificationsBattery & DC Parameters Input Parameters Physical Parameters & Standards, in mm Liebert NXL Model SizeSystem Parameter Specifications Liebert NXL alarm and status messages Event Message Event Definition Recommended Action 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 Ti n Ne tIti That