Emerson NX manual Available Selectable Input Contacts, Available Selectable Output Contacts

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Options

3.4.1Available Selectable Input Contacts

•On Gen

•Fast Power Off

•MBB Aux Contacts

•Start battery test (see Note 4 below)

•Fault acknowledge

•Bypass and Inverter both Off

•Stop battery test (see Note 4 below)

Notes

1.Each signal can be inverted

2.Each signal can have a turn-on delay applied from 0-60 seconds

3.Each signal can have a turn-off delay applied from 0-60 seconds

4.To guarantee that the command is accepted, keep the function active at least 10/15 seconds.

3.4.2Available Selectable Output Contacts

• Summary Alarm (fault/warning)		• Inverter Not On
•	Residual Battery Autonomy is Expiring	•	Rectifier or Bypass Mains Failure
•	Inverter On	•	Load Supplied by battery
•	Bypass Active (AS400-like)	•	Maintenance Bypass Switch Closed
• Inverter Operation, Self Clocked		• Shutdown Command Pending
• Summary Fault		• Inverter Stopped Due to Fault
•	Bypass Stopped Due to Fault	•	Rectifier Fault
• Summary Warning		• Inverter Over Temperature warning
• Imminent Shutdown		• Battery Undervoltage
•	Inverter Overload	•	Rectifier or Bypass Mains Failure
•	Rectifier Mains Failure	•	Bypass Mains Failure
• Battery Overtemperature		• SGS on (Standby Generator Set)
• Battery Prewarning Level		• Battery Capacity @ 25%
• Load @ 25%		• Battery Capacity @ 50%
• Load @ 50%		• Battery Capacity @ 75%
• Load @ 75%		• Battery Capacity @ 100%
• Load @ 100%		• Line Fault
• Load @ 105%		• Summary Alarm OR Line Fault
• Power Loss Prewarning		• Power Loss Alarm
•	Backfeed Fault

Notes

1.Each signal can be inverted

2.Each signal can have a turn-on delay applied from 0 to 60 seconds

3.Each signal can have a turn-off delay applied from 0 to 60 seconds

29	Liebert®NX™

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Contents Liebert NX Product Warranty Registration Table of Contents Options MaintenanceSpecifications Figures Page Important Safety Instructions Battery Cabinet Precautions General Description Typical single module UPS system one-line diagramMaintenance Bypass Normal ModeBypass Mode Battery ModeOptions Main component locations-225 to 300kVA Liebert NX FeaturesFront Doors Removed Main display screen, typical System Status Touchscreen NavigationMain Display Screen Measures Menu Rectifier Bypass Inverter Chg/Boost Battery LoadStatus Events Log MenuBattery Test Battery MenuBattery Status Battery parameters Battery MeasuresLife menu Life MenuAbout Menu Settings MenuAnimated One Line Mimic Rectifier Functional BlockLoad 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 Load Transfer and Retransfer-Single Module System Transfer ProcedureRetransfer Procedure 6 1+N System Transfer load from UPS to Bypass 9 1+N System Shutdown 7 1+N System Transfer load from Bypass to UPSShut Down-Single Module UPS System Load Transfer-1+N System Add a UPS to the System Collective Load Transfer-1+N System Remove a UPS from System CollectiveCurrent-versus-time curves of overload capacity Automatic OperationsOverloads Without Transfer Automatic Transfers to Bypass Overload Condition Automatic Transfers to Bypass, UPS System FaultsAutomatic Retransfers to UPS MopUPS Shutdown and Monitoring Software Remote Alarm UnitConnectivity combinations Manage UPS AdapterConnectivity Available Selectable Output Contacts Available Selectable Input ContactsSafety Precautions Training Liebert ServicesMaintenance Agreements The Signature Program Professional StartupAir Filters Routine MaintenanceRecord Log Component Expected Life Replace Battery MaintenanceUPS component service life Limited Life ComponentsBattery Safety Precautions Number of Cells Nominal Float 240 480 527 Matching Battery Cabinets-OptionalBattery voltage, nominal and float Battery Voltage, VDCRetorque Value Battery retorque valuesBattery Mfr Battery Model # In-lb N-m Other DC SourcesItems to check include Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Detecting TroubleOther DC Sources Battery OperationEnvironmental specifications DC SourcesPhysical specifications Electrical specificationsSpecifications LiebertNX Page Care Ne tIs t Twor k