datasheet: pdf - Farnell

Key FeaturesIR32/DRIndustrial Range ofTemperature and Process ControllersTheIR32rangeofcontrollers has been developedfromthehighlysuccessfulrefrigerationthermostatsmanufacturedby CarelinItaly. Thesecontrollershaverevolutionisedthethinkingbehindtemperatureandprocesscontrol. Currentdevelopmentsin this typeofinstrumenthavebeenbasedon theassumptionthatindustrialapplications requireeverincreasingsophistication incontroltechniques,givingtightcontrolandrapidresponsetothemoststringent andvariableprocesses.However,thevastmajorityofapplicationsdonotrequiresuchcomplicatedandsophisticatedte chniques. Thisisnotto say thattheIR32/DRisnotsophisticated;programmablealarmfunctions,controlaction,timedelays,outputsequencing,selectablesetpoints, Infra-redremotecontrolandmanyotherfeatures justify suchadescription for thisrangeofproducts. Thepointisthatthebasiccontrolactions of On/OffandProportional+Integralarequitesufficientto providestablecontrolformanyapplications,with thesignificantbenefitofapricetagof betterthan50%ofthenow commonPID,autotunedcontrollers supplied elsewhere.Anotherrevolutionaryconceptincor poratedin theIR32/DRrangeisthepre-determined andselectablecontrolactions(FunctionModes). Heretheusercandecidewhich Controlaction suitshisapplication,forexample;Heat+CoolwithDeadband, Directaction plusAlarmorPImodewithselectablesetpoints.Simplybyselecting1of the9presetmodes, hecandedicatetheoperationoftheIR32/DRto aspecificfunction.Finally,forapplications whichrequiremultiplecontrollers,such as supermarketsor buildingventilation,itispossibletoprogramtheIR32/DRfromeitheraremote,infra-red,hand-held programmeroraP C,viaaRS485communications network..............9pre-determinedandselectableFunction Modes1, 2or 4outputoptions incorporatedinasinglehousing1or2setpoints, selectablebyaremotedigitalinputDirect,ReverseorHeat+Cool+DeadbandcontrolactionProgrammableAlarmaction, hysteresis andtimedelaysProgrammableControlcycleanddelay timesOn/Off.ProportionalorPIcontrolModesInfra-redremoteprogrammingRS232/485 communicationsoptionAutoranging, threedigitdisplaywithdecimalpointresolutionOutputrotationon2or 4outputmodels, for loadprotectionand optim alwearIP65 water anddustprotection(IR32 only)12-24Vac/dcand24-240Vac(IR32V only)supply options. CEemcandlow voltagecompatibilityPage1