ApplicationTheFX-PCX2721controllerispartoftheFacilityExplorerFX-PCSeriesProgrammableControllerfamily.FX-PCXsexpandthenumberofinput/outputpointsconnectedtoeitheranFX-PCA,FX-PCG,FX-PCVprogrammablecontrollerortoasupervisorycontrollertomonitorandcontrolawidevarietyofHVACequipment.FX-PCXoperateonanRS-485BACnet®Master-Slave/Token-Passing(MS/TP)BusasBACnetApplicationSpecificControllers(B-ASCs)andintegrateintoJohnsonControls®andthird-partyBACnetsystems.Note:AtFX-PCTRelease10.1,anewcapabilitywasintroducedallowingFX-PCVs,FX-PCGs,andFX-PCAstocommunicatebyusingeithertheBACnetortheN2fieldbusnetworkingprotocol.TheoperationoftheFX-PCXInput/OutputModuleisnotaffectedbytheselectionoftheBACnetortheN2protocolinthehostcontroller.NorthAmericanEmissionsComplianceCanadaThisClass(A)digitalapparatusmeetsalltherequirementsoftheCanadianInterference-CausingEquipmentRegulations.CetappareilnumériquedelaClasse(A)respectetouteslesexigencesduRèglementsurlematérielbrouilleurduCanada.UnitedStatesThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigitaldevicepursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhenthisequipmentisoperatedinacommercialenvironment.Thisequipmentgenerates,uses,andcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructionmanual,maycauseharmfulinterferencetoradiocommunications.Operationofthisequipmentinaresidentialareamaycauseharmfulinterference,inwhichcasetheuserswillberequiredtocorrecttheinterferenceattheirownexpense.InstallationObservetheseguidelineswheninstallingacontroller:•Transportthecontrollerintheoriginalcontainertominimizevibrationandshockdamage.•Verifythatallpartsshippedwiththecontroller.•Donotdropthecontrollerorsubjectittophysicalshock.PartsIncluded•onecontrollerwithremovableterminalblocks(PowerandSA/FCbusareremovable)•oneinstallationinstructionssheetMaterialsandSpecialToolsNeeded•threefastenersappropriateforthemountingsurface(M4screwsor#8screws)•one20cm(8in.)orlongerpieceof35mmDINrailandappropriatehardwareforDINrailmount(only)•smallstraight-bladescrewdriverforsecuringwiresintheterminalblocksMountingObservetheseguidelineswhenmountinganFX-PCXcontroller:•Ensurethemountingsurfacecansupportthecontroller,DINrail,andanyuser-suppliedenclosure.•Mountthecontrollerhorizontallyon35mmDINrailwheneverpossible.•Mountthecontrollerinthepropermountingposition.•Mountthecontrolleronahard,evensurfacewheneverpossibleinwall-mountapplications.•Useshimsorwasherstomountthecontrollersecurelyandevenlyonthemountingsurface.•MountthecontrollerinanareafreeofcorrosivevaporsandobservetheAmbientConditionsrequirementsinTable10.•Provideforsufficientspacearoundthecontrollerforcableandwireconnectionsforeasycoverremovalandgoodventilationthroughthecontroller(50mm[2in.]minimumonthetop,bottom,andfrontofthecontroller).1FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsFX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsFX-PCX2721-0Part No. 24-10144-173, Rev. FIssued August 2018Refer to the QuickLIT website for the most up-to-date version of this document.•Donotmountthecontrolleronsurfacespronetovibration,suchasductwork.•Donotmountthecontrollerinareaswhereelectromagneticemissionsfromotherdevicesorwiringcaninterferewithcontrollercommunication.Observetheseadditionalguidelineswhenmountingacontrollerinapanelorenclosure:•Mountthecontrollersothattheenclosurewallsdonotobstructcoverremovalorventilationthroughthecontroller.•Mountthecontrollersothatthepowertransformerandotherdevicesdonotradiateexcessiveheattothecontroller.•Donotinstallthecontrollerinanairtightenclosure.Figure1:ControllerMountingPositionsDINRailMountApplicationsMountingtheFX-PCXcontrollerhorizontalon35mmDINrailisthepreferredmountingmethod.Tomountacontrolleron35mmDINrail:1.Securelymounta20cm(8in.)orlongersectionof35mmDINrailhorizontalandcenteredinthedesiredspacesothatthecontrollermountsinthehorizontalpositionshowninFigure1.2.Pullthetwobottommountingclipsoutwardfromthecontrollertotheextendedposition(Figure2).3.HangthecontrollerontheDINrailbythehooksatthetopofthe(DINrail)channelonthebackofthecontroller(Figure2),andpositionthecontrollersnuglyagainsttheDINrail.4.Pushthebottommountingclipsinward(up)tosecurethecontrollerontheDINrail.ToremovethecontrollerfromtheDINrail,pullthebottommountingclipsouttotheextendedpositionandcarefullyliftthecontrollerofftheDINrail.2FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsWallMountApplicationsTomountanFX-PCXcontrollerdirectlyonawallorotherflatverticalsurface:1.Pullthetwobottommountingclipsoutwardandensuretheyarelockedintheextendedposition,asshowninFigure2.2.MarkthemountingholelocationsonthewallusingthedimensionsinFigure2andoneofthemountpositionsshowninFigure1.Orholdthecontrolleruptothewallorsurfaceinapropermountpositionandmarktheholelocationsthroughthemountingclips.3.Drillholesinthewallorsurfaceatthemarkedlocations,andinsertappropriatewallanchorsintheholes(ifnecessary).4.Holdthecontrollerinplace,andinsertthescrewsthroughthemountingclipsandintotheholes(oranchors).Carefullytightenallofthescrews.Important:Donotovertightenthemountingscrews.Overtighteningthescrewsmaydamagethemountingclips.Figure2:BackofControllerShowingExtendedMountingClips,DINRailChannel,andMountingDimensions,mm(in.)3FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsFigure3:FX-PCX2721PhysicalFeaturesTable1:FX-PCX2721PhysicalFeaturesCalloutsandDescriptionsPhysicalFeature:DescriptionandReferencesCalloutAnalogOutputs(AOs)TerminalBlock.(SeeTable3)1MountingClip(ThreeTotal)2DeviceAddressDIPSwitchBlock(SeeSettingtheDeviceAddresses)324VAC,Class2SupplyPowerTerminalBlock(SeeSupplyPowerTerminalBlock)4CoverLiftTab(OneofTwo)(SeeRemovingtheControllerCover)5SensorActuator(SA)Bus/FieldController(FC)BusTerminalBlock(SeeSA/FCBusTerminalBlock)6UniversalInputs(UIs)TerminalBlock(SeeTable3)7LEDStatusIndicators(SeeTable8)8SensorActuator(SA)BusorFieldController(FC)BusPort(RJ-126-pinModularJack)(SeeSA/FCBusPort)94FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsWiringRiskofElectricShock:Disconnectorisolateallpowersuppliesbeforemakingelectricalconnections.Morethanonedisconnectorisolationmayberequiredtocompletelyde-energizeequipment.Contactwithcomponentscarryinghazardousvoltagecancauseelectricshockandmayresultinseverepersonalinjuryordeath.Avertissement:Risquededéchargeélectrique:Débrancherouisolertoutealimentationavantderéaliserunbranchementélectrique.Plusieursisolationsetdébranchementssontpeut-êtrenécessairespour-couperentièrementl'alimentationdel'équipement.Toutcontactavecdescomposantsconducteursdetensionsdangereusesrisqued'entraînerunedéchargeélectriqueetdeprovoquerdesblessuresgraves,voiremortelles.RiskofPropertyDamage:Donotapplypowertothesystembeforecheckingallwiringconnections.Shortcircuitedorimproperlyconnectedwiresmayresultinpermanentdamagetotheequipment.MiseEnGarde:Risquededégâtsmatériels:Nepasmettrelesystèmesoustensionavantd'avoirvérifiétouslesraccordsdecâblage.Desfilsformantuncourt-circuitouconnectésdefaçonincorrecterisquentd'endommagerirrémédiablementl'équipement.Important:Donotexceedthecontrollerelectricalratings.Exceedingcontrollerelectricalratingscanresultinpermanentdamagetothecontrollerandvoidanywarranty.Important:Usecopperconductorsonly.Makeallwiringinaccordancewithlocal,national,andregionalregulations.Important:Electrostaticdischargecandamagecontrollercomponents.Useproperelectrostaticdischargeprecautionsduringinstallation,setup,andservicingtoavoiddamagingthecontroller.FordetailedinformationonconfiguringandwiringanMS/TPBus,FCbus,andSAbus,refertotheFX-PCSeriesControllersMS/TPCommunicationsBusTechnicalBulletin(LIT-12011670)orMS/TPCommunicationsBusforBCMSystemTechnicalBulletin(LIT-12011908).TerminalBlocksandBusPortsSeeFigure3forterminalblockandbusportlocationsonthecontroller.Observethefollowingguidelineswhenwiringacontroller.InputandOutputTerminalBlocksAlloftheinputterminalblocksaremountedonthebottomofthecontrollerandtheoutputterminalblocksaremountedonthetopofthecontroller.SeeTable3formoreinformationaboutI/Oterminalfunctions,requirements,andratings.SA/FCBusTerminalBlockAnFX-PCXcontrollercanbeconnectedtoaSensor/Actuator(SA)busoraFieldController(FC)bus,butnottobothbusessimultaneously.TheSA/FCbusterminalblockisaremovable,4-terminalplugthatfitsintoaboard-mountedjack.WhenconnectingtheFX-PCXtoanFCbus,wirethebusterminalblockplugsonthecontroller,andtheothercontrollersinadaisy-chainconfigurationusing3-wiretwisted,shieldedcableasshowninFigure4.SeeTable5formoreinformation.Figure4:FCBusTerminalBlockWiringWhenconnectingtheFX-PCXtoanSAbus,wirethebusterminalblockplugsonthecontrollerandotherSAbusdevicesinadaisy-chainconfigurationusing4-wiretwisted,shieldedcableasshowninFigure5.SeeTable3formoreinformation.5FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsFigure5:SABusTerminalBlockWiringNote:TheSAPWR/SHLDterminaldoesnotsupply15VDC.TheSAPWR/SHLDterminalisisolatedandcanbeusedtoconnect(daisychain)the15VDCpowerleadsontheSAbus(Figure5)orthecableshieldsontheFCbus(Figure4).TheSAbussupervisorsupplies15VDCtodevicesontheSAbusrequiringpower.SA/FCBusPortTheSA/FCbusportonthefrontofthecontrollerisanRJ-12,6-positionmodularjackthatprovidesaconnectionfordevicesontheSAbus,aBluetooth®CommissioningConverter,Zigbee®wirelessdongle,oranFX-ZFR1811WirelessRouter(dependingonwhichbustheFX-PCXisoperatingon).TheSA/FCbusportisconnectedinternallytotheSA/FCbusterminalblock.SeeTable5formoreinformation.TheSA/FCbusPortpinassignmentisshowninFigure6.Figure6:PinNumberAssignmentsforSensor,SABusandFCBusPortsonControllersSupplyPowerTerminalBlockThe24VACsupplypowerterminalblockisagray,removable,3-terminalplugthatfitsintoaboard-mountedjackonthetoprightofthecontroller.Wirethe24VACsupplypowerwiresfromthetransformertotheHOTandCOMterminalsontheterminalplugasshowninFigure7.Themiddleterminalonthesupplypowerterminalblockisnotused.SeeTable5formoreinformationabouttheSupplyTerminalBlock.Figure7:24VACSupplyPowerTerminalBlockWiringNote:Thesupplypowerwirecolorsmaybedifferentontransformersfromothermanufacturers.Refertothetransformermanufacturer’sinstructionsandtheprojectinstallationdrawingsforwiringdetails.Important:Connect24VACsupplypowertothecontrollerandallothernetworkdevicessothattransformerphasingisuniformacrossthenetworkdevices.Poweringnetworkdeviceswithuniform24VACsupplypowerphasingreducesnoise,interference,andgroundloopproblems.Thecontrollerdoesnotrequireanearthgroundconnection.WirelessNetworkApplicationsThecontrollercanalsobeinstalledinawirelessapplicationusinganFX-ZFR1811WirelessFieldBusRouter.ToconfigureacontrollerforusewiththeFX-ZFRSeriesWirelessFieldBussystem:Note:FX-PCXscantalkwirelesslyontheFCbusonly.6FX-PCX2721ExpansionInput/OutputModuleInstallationInstructions1.ConnecttheFX-ZFR1811WirelessFieldBusRoutertotheFCbusport(RJ-12modularjack)onthefrontofthecontroller.2.Ensurethatthecontroller'sdeviceaddressDIPswitchesaresettothecorrectdeviceaddress.SeeSettingtheDeviceAddresses.3.SetDIPswitch128toON,whichenableswirelessoperationonthecontroller.Formoreinformationoninstallingacontrollerinawirelessconfiguration,refertotheFX-ZFRWirelessFieldBusRouterInstallationInstructions(PartNo.24-10325-29).TerminationDetailsAsetofJohnsonControls®terminationdiagramsprovidesdetailsforwiringinputsandoutputstothecontrollers.Seethefiguresinthissectionfortheapplicableterminationdiagrams.Table2:TerminationDetailsTerminationDiagramsTypeofInput/OutputTypeofFieldDeviceUITemperatureSensorUIVoltageInput-ExternalSourceUIVoltageInput-InternalSourceUIVoltageInput(Self-Powered)UICurrentInput-ExternalSource(Isolated)7FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsTable2:TerminationDetailsTerminationDiagramsTypeofInput/OutputTypeofFieldDeviceUICurrentInput-InternalSource(2wire)UICurrentInput-InternalSource(3wire)UICurrentInput-ExternalSource(inLoop)UIFeedbackfromEPP-1000UIDryContact(BinaryInput)AO0–20VDCOutputtoActuator(ExternalSource)8FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsTable2:TerminationDetailsTerminationDiagramsTypeofInput/OutputTypeofFieldDeviceAO0–10VDCOutputtoActuator(InternalSource)AOAnalogOutput(Current)AO4–20mAOutputtoActuatorAOVoltage(AnalogOutput)AO4–20mAOutputtoActuator9FX-PCX2721ExpansionInput/OutputModuleInstallationInstructionsNext 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