ITT IM213 Water Pump User Manual


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19
Input and Output Functions
Section 8
Thecontrolterminalstripsallowforavarietyofinputandoutputfunctions.
Warning:Turnoffallpowertothecontrollerbeforewiringdevicestothe
controlterminals.
Warning:InputsRUN/STOP,HAND/AUTO,SP2/SP1andPRESSUREDROPare
switchinputs.Donotconnectpowertotheseinputsordamagetothecontroller
willresult.Onlyconnectnon-poweredswitchcontactstotheseinputs.
RUN/STOP:Thisinputallowsthepump/motortobeturnedonandoffbyan
externalswitch.Connectthecontactsofanon-poweredexternalswitchto
terminals1(COM)and2(RUN/STOP).Whentheswitchisclosedthecontroller
isinRUNmode(outputtomotorisenabled).Whentheswitchisopenthe
controllerisinSTOPmode(outputtomotorisdisabled).
HAND/AUTO:Thisinputallowsthecontrollertorunthemotoratfullspeed
withouttheuseofapressuretransducer.Thisinputcanbecontrolledbyan
externalnon-poweredswitch.Connectthecontactsofanon-poweredexternal
switchtoterminals3(COM)and4(HAND/AUTO).Whentheswitchisclosedthe
controllerisinHANDmode.WhileinHANDmodetheRUN/STOPinputisusedtostartandstopthemotorandthe
pressuretransducerinputisignored.WhentheswitchisopenthecontrollerisinAUTOmode.WhileinAUTOmode
thecontrollerusesthepressuretransducerfeedbacktocontrolthespeedofthemotor.
INPUT and +24V:Theseterminalsarethetransducerfeedbackandtransducerpowersupply.Connectthewhite
leadfromthetransducercabletoterminal6(INPUT).Connectthebrownleadfromthetransducercabletoterminal7
(+24V).Connectingthedrain(bare)wiretothechassisallowsgroundingofthecaseofthepressuretransducer.The
controllerisconguredwitha300PSI4-20mAoutputpressuretransducer.
ANALOG OUTPUT:Thisoutputisa4-20mAsignalbasedonmotorspeed(4mA=0Hz,20mA=60Hz)andcanbe
connectedtoexternalmonitoringorexternalcontroldevices.Connectterminal10(ANALOGOUTPUT)tothe4-20mA
inputoftheexternaldevice.Connectterminal9(COM)tothenegativesideofthecurrentloopontheexternaldevice.
Theexternaldevicemusthaveaninputresistance(impedance)intherangeof45Ωto250Ω.Themaximumoutput
voltageis24V.
SP2/SP1:Thisinputallowsthesystemtooperateatoneof2pressuresettings.Thisinputcanbecontrolledbyan
externalnon-poweredswitch.Connectthecontactsofanon-poweredexternalswitchtoterminals5(COM)and11
(SP2/SP1).Whentheswitchisclosedpressuresetpoint2isenabled(presetto75PSIwhenusedwitha300PSI
transducer).Whentheswitchisopenpressuresetpoint1isenabled(presetto50PSIwhenusedwitha300PSI
transducer).
PRESSURE DROP:Thisinputallowstheusertoselecttheamountofpressuredropinthesystembeforethepump
starts.Thisinputcanbecontrolledbyanexternalnon-poweredswitch.Connectthecontactsofanon-powered
externalswitchtoterminals5or9(COM)and12(PRESSUREDROP).Whentheswitchisclosedthesystempressure
willdrop20PSI(whenusedwitha300PSItransducer)beforerestartingthepump.Whentheswitchisopenthe
systempressurewilldrop5PSI(whenusedwitha300PSItransducer)beforerestartingthepump.
RUN RELAY:Thisoutputindicateswhenthepump/motorisrunning.Thisoutputcanbeusedtocontrolpowertoa
light,analarmorotherexternaldevice.Whenthepump/motorisoffterminal13(RELAY1–NO)willbeopenand
terminal14(RELAY1–NC)willbeconnectedtoterminal15(RELAY1–COM).Whenthepump/motorisonterminal
13(RELAY1–NO)willbeconnectedtoterminal15(RELAY1–COM)andterminal14(RELAY1–NC)willbeopen.
Therelayratingis250Vac,5ampsmaximum.
FAULT RELAY:Thisoutputindicateswhenthesystemisfaulted.Thisoutputcanbeusedtocontrolpowertoalight,
analarmorotherexternaldevice.Whenthesystemisnotfaultedterminal16(RELAY2–NO)willbeopenand
terminal17(RELAY2–NC)willbeconnectedtoterminal18(RELAY2–COM).Whenthesystemisfaultedterminal
16(RELAY2–NO)willbeconnectedtoterminal18(RELAY2–COM)andterminal17(RELAY2–NC)willbeopen.
Therelayratingis250Vac,5ampsmaximum.
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