controller for temperature control ekc 201c with double...

REFRIGERATION AND AIR CONDITIONING

Controller for temperature control- EKC 201C with double thermostat

Manual

� Manual RS8DS�0� © Danfoss 01-�007 EKC�01C

Introduction

Application•Controllerusedfortemperaturecontrolofrefrigerationappliancesinsupermarkets

•Onaccountoftheplugconnectionsthecontroller’smountingisprimarilyintendedforOEM’sintherefrigerationapplianceindustry.

PrincipleThecontrollercontainsatemperaturecontrolwithadoublethermostatfunction.Thethermostatsensorsareplacedinthecoldaircurrentaftertheevaporatorandinthehotaircurrentrightinfrontoftheevapora-tor,respectively.Notuntilboththermostatscallforrefrigerationwilltherelayoperate.Whena“nightlid”isplacedontheappliancethecontrollerwilladaptitselftothechangedcircumstances.AnotheroptionisthatonlytheSoutthermostatisselectedtobeactivewhiletheSintemperatureisselectedforthedisplayorthattheSinsensorisleftoutaltogether.

ConnectionThecontrollerisprovidedwithplugconnectionssothataquickconnectioncanbemadewithoutuseofscrewterminals.Sensorswithplugconnectionscanbesuppliedingivenlengths.

Advantages•Thecontrollercanitselfregisterwhetherthenightlidisonor

not.

•Thecontrollerhasintegratedrefrigeration-technicalfunctionssothatitcanreplaceacollectionofthermostatsandtimers.

•Temperatures,times,operatingconditions,parametercodesandalarmanderrorcodescanbereadonthedisplay.

•ThreeLED’sshowthesystem’sactualfunction: -refrigeration -defrost -fanoperating

•Whenthereisanalarm,allthreeLED’swillflash.

•Easytoinstalldatacommunicationatalaterdate.

Functions•Doublethermostatfunction.(TheSinthermostatcanbeopted

out).

•Changedalarmlimitswhennightlidison.

•Relayoutputsfor-refrigeration(compressor)-fan-defrost-alarm

•Digitalinputsfor,e.g.:-Coordinateddefrost-startofdefrost-retransmissionofcontactpositionviathedatacommunication

Cooling

"Withoutnightlid" :"Withnightlid"

EKC�01C Manual RS8DS�0� © Danfoss 01-�007 �

Function

The thermostat

ThetwotemperaturesSinandSouthavetheirownthermostatfunc-tionwithbelongingdifferential.Notuntilboththermostatscallforcoldtemperatureswillrefrigerationbestarted.Thesettingofthetwothermostatsisbasedonthefollowingprinciple:-TheSinthermostatissetsolowthatitwillalwayscallforrefrigera-

tionwhenthenightlidisoff-Soutisset,sothatitwillbethecontrollingthermostat-Whenthenightlidisputon,theSintemperaturewillfalland

formpartoftheregulation-Iftherefrigeratingsystemworkswithahighersuctionpressure

duringthenight,theSoutthermostatwillallthetimecallforcold,andaccordinglytheSinthermostatwillbethecontrollingthermostat.

Coordinated defrostCoordinateddefrostcanbecarriedoutintwoways.Eitherwithcableconnectionsbetweenthecontrollersorviadatacommunica-tion.

Wire connectionsOneofthecontrollersisdefinedasmaincontroller,andaclockmodulemaybemountedinit,ifrequired.Theothercontrollersaredefinedassecondarycontrollers.Themaincontrollercannowstartadefrostofallcontrollerssimultaneously.Theindividualcontrollerswillcarryoutthedefrostandthengoinwaitingpositionuntilallcontrollershavecon-cludedthedefrost.Themaincontrollerwillsubsequentlyreleaseallcontrollerstonormalregulation.

Defrost via data communicationAllcontrollersarefittedwithadatacommunicationmoduleandviatheoverridefunctionfromagatewaythedefrostcanbecoordinated.

Extra options

•Ifitisrequiredthatthetemperaturehastobeshownontherefrigerationappliance,adisplaycanbemounted.Thisdisplaywillshowthesamevaluesthatareshownonthecontroller’sdisplay,butitcontainsnobuttonsforoperation.

•Thecontrollercanbemountedatalaterdatewithoneplugmodule,ifrequiredbytheapplication.Thecontrollerispreparedwithaplugsothatthemodulejusthastobepushedin.-Ifitisrequiredthattheperiodicdefrostmaybechangedso

thatdefrostcanbeperformedatspecifictimesoftheday,aclockmodulemaybemounted.Itwillthenbepossibletosetuptosixdefrosttimesperdayandnight.Themoduleisprovidedwithbatterybackup.

-IfitisrequiredthatoperationistotakeplacefromaPC,adatacommunicationmodulemustbeplacedinthecontroller.Readmoreaboutdatacommunicationonpage14.

“Withoutnightlid”: “Withnightlid”

Maincontroller Secondary Secondary controller controller

4 Manual RS8DS�0� © Danfoss 01-�007 EKC�01C

Survey of functionsFunction Para-

meterParameter by operation via data communication

Normal display

NormallythetemperaturevalueisdisplayedfromoneofthetwothermostatsensorsSinorSout.Ino17isdeterminedwhichone.

SinTempSoutTemp

Thermostat ThermostatReferenceRegulationisbasedonthesetvalue.Seealsopages�and15.

Out SoutSetpoint(Showninallmenudisplays)

Temperature unitHereyouselectwhetherthecontrolleristoindicatethetemperaturevaluesin°Corin°F.

r05 T.Unit°C=0°F=1(InAKMonly°Cisdisplayed,whateverthesetting).

Differential SoutWhentheSouttemperatureishigherthantheSoutreferenceplusthesetdifferential,thethermostatfunctionwillcallforrefrigeration.Thecontrollerwillnotoperatethecompressorrelayuntilboththermostatscallforrefrigeration.

r07 SoutDiff.

Differential SinWhentheSintemperatureishigherthantheSinreferenceplusthesetdifferential,thethermostatfunctionwillcallforrefrigeration.Thecontrollerwillnotoperatethecompressorrelayuntilboththermostatscallforrefrigeration.(Thesetting/functioncanbeoptedoutinO14).

r08 SinDiff

Correction of signal from Sout(Compensationpossibilitythroughlongsensorcable)

r09 SoutOffset

Correction of signal from Sin(Compensationpossibilitythroughlongsensorcable)

r10 SinOffset

Sin thermostat referenceHereyousetthenumberofdegreestheSinreferencehastohigherthantheSoutrefer-ence.(Seealsopage15).(Thesetvaluerepresentsthecharacteristiccoldlossoftheappliance).

r�0 DeltaSinSout

Alarm Alarm settings

Thecontrollercangivealarmindifferentsituations.Whenthereisanalarmallthelight-emittingdiodes(LED)willflashonthecontrollerfrontpanel,andthealarmrelaywillbeactivated.Alarm delayIfoneofthetwolimitvaluesisexceeded,atimerfunctionwillcommence.Thealarmwillnotbecomeactiveuntilthesettimedelayhasbeenpassed.Thetimedelayissetinminutes.

A0� TempAlarmDel

Alarm delay for door alarmThetimedelayissetinminutes.

A04 DoorAlarmDel

Upper deviation for Sout Hereyousetwhenthealarmforhightemperatureistocommence.ThevalueissetinKelvinThealarmwillstartifthetemperatureexceedsthesetreferenceplustheupperdevia-tion.

A05 SoutUpperDev.

Lower deviation for Sout Hereyousetwhenthealarmforlowtemperatureistocommence.ThevalueissetinK.Thealarmwillstartifthetemperaturegoesfurtherdownthanthesetreferenceminusthelowerdeviation.

A06 SoutLowerDev.

Upper deviation for Sin Hereyousetwhenthealarmforhightemperatureistocommence.ThevalueissetinKelvin.Thealarmwillstartifthetemperatureexceedsthesetreferenceplustheupperdevia-tion.

A07 SinUpperDev.

Lower deviation for SinHereyousetwhenthealarmforlowtemperatureistocommence.ThevalueissetinKelvin.Thealarmwillstartifthetemperaturegoesfurtherdownthanthesetreferenceminusthelowerdeviation.

A08 SinLowerDev.

EKC�01C Manual RS8DS�0� © Danfoss 01-�007 5

Displacement of Sin alarms when the night lid is onThissettingwilldisplacethetwoalarmlimitsforSinwhenthenightlidhasbeenputon.ThevaluewillbeaddedtoA07andA08.(Ifapositivevalueisset,thelimitswillbeextended.Anegativevaluewillnarrowthelimits).

A09 SinNightOffset

Withdatacommunicationtheimpor-tanceoftheindividualalarmscanbedefined.Settingiscarriedoutinthe“Alarmdestinations”menu.Seealsopage14.

Alarmstat/relayHereyoucanreadthealarmrelay’sstatusoryoumayforce-controltherelayin“Manualcontrol”mode.ON=operatingsituationwithalarm.

Compressor Compressor

Thecompressorrelayworksinconjunctionwiththetwothermostats.Onlywhenboththermostatscallforrefrigerationwillthecompressorrelaybeoperated.

Running timesTopreventirregularoperation,valuescanbesetforthetimethecompressoristorunonceithasbeenstarted.Andforhowlongitatleasthastobestopped.Therunningtimesarenotrespectedwhendefrostsarestarted.Min.ON-time(inminutes) c01 Min.ONTime

Min.OFF-time(inminutes) c0� Min.OFFTimeSafety functions for sensor defectsIftheroomsensorbecomesdefective(isshort-circuitedorinterrupted),thecontrollerwillstartacontrolfrequencyofthecompressoratthesametimeasanalarmwillbegivenforthesensordefect.Ifthecontrollerhasbeenworkingforsolongthatthecompressorrelayhasbeenoperated7�times,thecontrollerwillrememberthedifferentON/OFFtimesofthecompressorrelay.TheregulationwillthencontinuewiththeestablishedaverageON/OFFperiod.Ifthecontrollerhashowevernotaccomplished7�operations,theregulationwilluseatimeperiodof�0minutes.Duringthese�0minutesthecompressorwillbestartedandstoppedbythispercentagesetting.Asettingof,say,40%willoperatetherelayineightofthe�0minutes.

c0� CutinFreq

Compressor stop at open doorIfthedigitalinputisusedforadoormonitoringfunction(seedefinitioninthe“Mis-cellaneous”section)thecompressorcanbestoppedwhenthedoorisopened.WiththesettingYes(ON)thecompressorwillbestopped.t.

c04 CutoutAtDoor

TheLEDonthecontroller’sfrontpanelwillshowwhetherrefrigerationisinprogress. CompRelayHereyoucanreadthealarmrelay’sstatusoryoumayforce-controltherelayin“Manualcontrol”mode.

Defrost Defrost Thecontrollercontainsatimerfunctionsothatdefrostisstartedperiodically,e.g.everyeighthours.Ifdefrostistobecarriedoutatcertaintimesoftheday,thesettingmustbemadeaccordingly,butthecontrollercanalsobefittedwithamodulecontainingareal-timeclock.Whenthisclockismounted,defrostcanbestartedatcertaintimesoftheday.Youmustsetwhetherdefrostistomadewithelectricityorhotgas.Theactualdefrostisstoppedontemperature.Compressor ON during defrostHereyouhavetosetwhetherdefrostistobecarriedoutwithelectricityorhotgas.Duringdefrostthedefrostrelaywillbeoperated.Thesettingwillhaveaninfluenceonthecompressorrelay’sfunctionduringdefrost.If“no”isselected,thecompressorrelaywillnotbeactivated.If“yes”isselected,therelaywillbeoperated.

d01 CutInatDef

Defrost stop temperature DefrostisstoppedatagiventemperatureattheSdefsensor(orSout,cf.d10).Thetem-peraturevalueisset.

d0� DefStopTemp


Interval between defrost startsTherearetwosettingoptionshere.Youeithersetthefunctioninpos.OFF,oryousetaninterval.Setinpos.OFFifyouarrangethedefroststartbyusinginputDIorifyoumountareal-timemoduleinthecontroller.Interval:Hereyousimplysethowoftendefrostistobestarted.Ifmaster/slavedefrostwithoutclockfunctionisused,itwillbetheintervalthatdeter-minesthedefrosts.Ifadefroststartviathedatacommunicationdoesnotmaterialise,theintervalwillbeusedasmax.timebetweendefrosts.

d0� DefInterval(0=off)

Max. defrost durationThissettingisasafetyperiod,sothatdefrostwillbestoppediftherehasnotalreadybeenastopbasedontemperature.

d04 MaxDefTime

Time displacement of defrost cutins during start-upThefunctionisonlyrelevant,ifyouhaveseveralrefrigerationappliancesorgroupswhereyouwouldlikethedefrosttobedisplaced.Thisfunctionisalsoonlyrelevantifyouhaveselecteddefrostwithintervalstart(d0�).Thefunctiondelaysthedefrostbythesetnumberofminutes,butfortheveryfirstdefrostitonlydoesitwhenthecontrollerhasbeenenergised.

d05 TimeStagger

Drip-off timeHereyousetthetimethatistoelapsefromtheendofadefrostanduntilcompressoristoberesumed.(Thetimewhenwaterisdrippingofftheevaporator).

d06 DripOffTime

Fan start delay after defrostHereyousetthetimethatistoelapsefromthecompressorisstartedafteradefrostanduntilthefanmayresumeoperation.(Thetimewherethewateris“bound”totheevaporator).

d07 FanStartDel

Fan start temperatureThefanmayalsobestartedalittleearlierthanmentionedunder“Delayedfanstartafterdefrost”ifthedefrostsensorregistersapermissiblevalue.Hereyoucansetthevalueforwhenthefanmaystart.

d08 FanStartTemp

Fan cut in during defrostHereyousetwhetherthefanistooperateduringdefrost.

d09 FanDuringDef

Defrost sensorHereyousetwhetherthedefrostsensoristobeSdeforSout.

d10 DefSenOut=01=Sdef

Delayed temperature alarm after defrostDuringandimmediatelyafteradefrostthetemperatureis“toohigh”.The“hightem-peraturealarm”canbesuppressedrightafteradefrost.Hereyoumustsetforhowlongthealarmistobesuppressed.

d11 DefAlarmDel

Delay of display view after defrostDuringandimmediatelyafteradefrostthetemperatureis“toohigh”.Thedisplayofthis“toohigh”temperatureiscancelledduringthedefrostandmayfurthermorebesuppressedrightafteradefrost.Hereyousetforhowlongtheexactmeasurementmaybesup-pressed.Duringandimmediatelyafteradefrostthedisplaywillshow“-d-”.

d1� DelayDisplay

Defrost at power upHereyousetwhetherthecontrolleristostartwithadefrost,iftherehasbeenapowerfailure.

d1� DefAtPowerUp

IfyouwishtoseethetemperatureattheSdefsensor,pushthecontroller’slowerbutton.

Defrosttemp.

Ifyouwishtostartanextradefrost,pushthecontroller’slowerbuttonfor�0seconds.Youcanstopanon-goingdefrostinthesameway.

DefStartHereyoucanstartamanualdefrost

TheLEDonthecontroller’sfrontpanelwillshowwhetheradefrostisinprogress. DefrostRelayHereyoucanreadthedefrostrelaystatus,oryoucanforce-controltherelayin“Manualcontrol”mode.


Realtime clockThecontrollerhasroomforoneplugmodulewhichmayeitherbeadatacommunica-tionmoduleorareal-timemodule.Whenadatacommunicationmoduleismounted,thecontrollercanbeconnectedtoaDanfossgatewaytypeAKA�4�.Operationofthecontrollercannowtakeplaceviathedatacommunication.Pleasecf.separateliterature.

Real time clockWiththismoduleuptosixindividualtimescanbesetfordefroststartsperdayandnight.Defroststart,timesetting t01-t06Defroststart,minutesetting(1and11belongstogetheretc.) t11-t16

Settingofhours t07Settingofminutes t08Fan FanInadditiontothefanfunctionsduringdefrostthefansmayalsobestoppedasafunctionofthecompressoroperation.

Fan stop on compressor cut outHereyoucanselectwhetherthefanmustbestoppedwhenthecompressoriscutout.

F01 FanStpComp(ON=stoppedfan)

Delayed fan stop when compressor is cut outIfyouhavechosentostopthefanwhenthecompressoriscutoutyoucandelaythefanstopafterthecompressorhasstopped.Hereyousetthetimedelay.

F0� FanDelAtComp

Fan stop at open doorIfyouhaveselectedtheDIinputformonitoringofadoorswitchyoucanalsohavethefanstoppedwhenthedoorisregisteredopen.SelectYesorNotothefunction.

F0� FanStpAtDoor

TheLEDonthecontroller’sfrontpanelwillshowwhetherthefanisoperating. FanRelayHereyoucanreadthefanrelay’ssta-tusoryoumayforce-controltherelayin“Manualcontrol”mode.

Miscellaneous MiscellaneousDelay of output signal after start-upAfterstart-uporapowerfailurethecontroller’sfunctionscanbedelayedsothatover-loadingoftheelectricitysupplynetworkisavoided.Hereyoucansetthetimedelay

o01 DelayOfOut

Digital input controlThecontrollerhasadigitalinput“DI”whichcanbeusedforoneofthefollowingfunc-tions:Off:Inputnotused.1)Datacommunication.Ifamodulewithdatacommunicationismounted,thisset-ting1shouldbeselected,butsettings/functions�and4arealsoallowed.�)Defrost.Acontactfunctionwithreturmspringisfitted.ThecontrollerwillregisterwhentheDIinputisactivated.Thecontrollerwillthenstartadefrostcycle.IfthesignalistobereceivedbyseveralcontrollersitisimportantthatALLconnectionsaremountedthesameway(DItoDIandGNDtoGND).Itisalsoarequirementthatallcontrollersaresuppliedwithpowerfromtheirownseparatepowersupplyunits.�)Nightlid.Whentheinputisshort-circuitedthisisasignalthatthenightlidhasbeenputon.4)Mainswitch.Regulationiscarriedoutwhentheinputisshort-circuited,andregula-tionisstoppedwhentheinputisputinpos.OFF.5)Coordinateddefrostwithwireconnections.(However,ifcoordinateddefrostviadatacommunicationisused,setting5mustnotbeused).6)Door.Whentheinputisopenitsignalsthatthedoorisopen.

o0� DIConfig

Definitiontakesplacewiththenu-mericalvalueshowntotheleft.(0=off)

DIState(Measurement)TheDIinput’spresentstatusisshownhere.ONorOFF.

AddressIfthecontrollerisbuiltintoanetworkwithdatacommunication,itmusthaveanaddress,andthemastergatewayofthedatacommunicationmustthenknowthisaddress.Thesesettingscanonlybemadewhenadatacommunicationmodulehasbeenmountedinthecontrollerandtheinstallationofthedatacommunicationcablehasbeencompleted.Thisinstallationismentionedinaseparatedocument“RC.8A.C”..

Followinginstallationofadatacom-municationmodule,thecontrollercanbeoperatedonaparwiththeothercontrollersinADAP-KOOL®refrigera-tioncontrols.

Theaddressissetbetween1and60 o0�

Theaddressissenttothegatewaywhenthemenuissetinpos.ON o04


Access codeIfthesettingsinthecontrolleraretobeprotectedwithanaccesscodeyoucansetanumericalvaluebetween0and100.Ifnot,youcancancelthefunctionwithsettingOFF.

o05 -

Used sensor typeNormallyaPt1000sensorwithgreatsignalaccuracyisused.ButyoumayalsouseaPTCsensor(R�5=1000)inspecialsituations.WhenaPT1000sensorisused,thetemperatureisshownwithonedecimal.IfyouuseaPTCsensorthetemperaturewillbedisplayedinwholefigures.

o06 SensTypPt=0PTC=1

Coordinated defrost with wire connectionsConnectionstothecontrollermustbemadeasdescribedonpage1�.Off:Nocoordinateddefrostwithwireconnections1:Maincontroller(onlyonecontrollerinthegroupcanbemaster)�:SecondarycontrollerIfthereiscoordinateddefrostviadatacommunication,thesettingmustbeOFF.Ifthefunctionissetinthesecondarycontrollerpriortobeingsetinthemaincontrol-ler,thiswillstartadefrost.Thiscanbeavoidedbysettingthemaincontrollerbeforethesecondarycontroller.

o1� DOConfigOff=0Maincontroller=1Secondarycontroller=�

Active thermostat (Active sensor)Normallyregulationiscarriedoutwithboththermostats,buttheSinthermostatmaybeleftout,ifdesired.Aut:Boththermostatsparticipateintheregulation.Out:OnlytheSoutthermostatisused.IfSinisalsooptedoutino17thesensormaybeleftoutaltogether.

o14 Act.Sen.AUT=0Sout=1

Display stepNormallythetemperatureisshownwith1°stepsifPTCsensorsareused,andwith0.1°stepsifPTsensorsareused.These0.1°stepsmayberaisedto0.5°,ifrequired.Yes:Givesstepsof0.5°No:Givesstepsof0.1°The1°stepforPTCsensorscannotbechanged.

o15 DispStep=0.5

Max. standby time after coordinated defrostWhenacontrollerhascompletedadefrostitwillwaitforasignalwhichtellsthattherefrigerationmayberesumed.Ifthissignalfailstoappearforonereasonoranother,thecontrollerwillitselfstarttherefrigerationwhenthisstandbytimehaselapsed.

o16 MaxHoldTime

Select sensor signal for the displayAutomaticchangeoverbetweenSoutandSin.Soutisshownwhenthenightlidisoff,andSinwhenthenightlidison.Sout;AlwaysSoutSin:AlwaysSin

o17 DisSenAUT=0Sout=1Sin=�

Manual control of outputsInconnectionwithservicetheindividualrelayoutputsandthedigitaloutputcanbechangedtopos.ON.Off:Nooverride1:CompressorrelayisON�:DefrostrelayisON�:FanrelayisON4:AlarmrelayisON5:Signaltoslavecontrollersthatdefrostisrequired

o18 ManualContr(Showninallmenudisplays)

Setinpos.ONwhereaftertherelevantrelaycanbecontrolledbyforce.

RemembertoresetthefunctiontoOFF.

Alarm/lightHereyoudefinewhethertherelayonterminals�0-�1istobeusedforanalarmrelayorforalightfunction.1=alarm.Therelaycutsoutwhenthereisanalarm.�=light.Therelaycutsinduringperiodswithlight.(daytime).

o�6 AuxRelConfig

DOStateHereyoucanreadtheoutput’sstatusoryoucanforce-controltheoutputin“Manualcontrol”mode.

HoldAfterDefShowsONifthecontrollerisoperatingwithcoordinateddefrost.

---NightSetback0=Day1=Night(as414C)


Fault message AlarmsInanerrorsituationtheLED’sonthefrontpanelwillflashandtherelaywillbeacti-vated.Ifyoupushthetopbuttoninthissituationyoucanseethealarmreportinthedisplay.Therearetwokindsoferrorreports-itcaneitherbeanalarmoccurringduringthedailyoperation,ortheremaybeadefectintheinstallation.A-alarmswillnotbecomevisibleuntilthesettimedelayhasexpired.E-alarms,ontheotherhand,willbecomevisiblethemomenttheerroroccurs.Herearethemessagesthatmayappear:

A4:Dooralarm DoorAlarm

A5:Information.Parametero16hasexpired MaxHoldTime

A6:High-temperaturealarmSout SoutHighTemp.

A7:Low-temperaturealarmSout SoutLowTemp.

A8:High-temperaturealarmSin SinHighTemp.

A9:Low-temperaturealarmSin SinLowTemp.

E1:Faultincontroller ContrFaultE4:Sdefdisconnected DefSensorErr.

E5:Short-circuitedSdef DefSensorErr.

E6:Errorinreal-timeclock.Checkbattery/Resetclock. -

E7:Soutdisconnected SoutSensorErr.

E8:Short-circuitedSout SoutSensorErr.

E9:Sindisconnected SinSensorErr.

E10:Short-circuitedSin SinSensorErr.

Alarm destinations

Theimportanceoftheindividualalarmscanbedefinedwithasetting(0,1,�or�).Seepage14.

Operating status (Measurement)Thecontrollergoesthroughsomeregulatingsituationswhereitisjustwaitingfortnextpointoftheregulation.Tomakethese“whyisnothinghappening”situationsvisible,youcanseeanoperatingstatusonthedisplay.Pushbriefly(1s)theupperbut-ton.Ifthereisastatuscode,itwillbeshownonthedisplay.(Statuscodeshavelowerprioritythanalarmcodes.Inotherwords,youcannotseeastatuscode,ifthereisanactivealarm).Theindividualstatuscodeshavethefollowingmeanings:

EKCState:(Showninallmenudisplays).

S1:Waitingforendofthecoordinateddefrost 1

S�:Whenthecompressorisoperatingitmustrunforatleastxminutes. �

S�:Whenthecompressorisstopped,itmustremainstoppedforatleastxminutes. �

S4:Theevaporatordripsoffandwaitsforthetimetorunout 4

S6:Regulationwithoutnightlid(Soutregulation) 6

S7:Regulationwithnightlid(Sinregulation) 7

S10:Refrigerationisstoppedbytheinternalorexternalstart/stop 10

PS:Passwordrequired.Setpassword


Light-emitting diodes (LED) on front panelThereareLED’sonthefrontpanelwhichwilllightupwhenthebelongingrelayisactivated.TheLED’swillflash,ifthereisanerrorintheregulation.Inthissituationyoucanuploadtheerrorcodeonthedisplayandcancelthealarmbygivingtheuppermostbuttonabriefpush.

DisplayThevalueswillbeshownwiththreedigits,andwithasettingyoucandeterminewhetherthetemperaturearetobeshownin°Corin°F.

Operation

The buttonsWhenyouwanttochangeasetting,thetwobuttonswillgiveyouahigherorlowervaluedependingonthebuttonyouarepush-ing.Butbeforeyouchangethevalue,youmusthaveaccesstothemenu.Youobtainthisbypushingtheupperbuttonforacoupleofseconds-youwillthenenterthecolumnwithparametercodes.Findtheparametercodeyouwanttochangeandpushthetwobuttonssimultaneously.Whenyouhavechangedthevalue,savethenewvaluebyoncemorepushingthetwobuttonssimultane-ously.

Givesaccesstothemenu(orcutoutanalarm)

Givesaccesstochanges

Savesachange

Showninthetabletotherightarethedifferentkindsofoperationthatcanbeperformed.Thesymbolsforpushingofbuttonshavethefollowingmeanings:

Pushtheupperbutton

Pushthelowerbutton

Pushthetwobuttonssimultaneously

Examplesofoperations

See the temperatur at the other controls sensor1.Pushthetwobuttonssimultaneously

See the temperatur at the defrost sensor1.Pushthelowerbutton

Set of a menu1.Pushtheupperbuttonuntilaparam-

eterisshown�.Pushoneofthebuttonsandfindthe

parameteryouwanttochange�.Pushbothbuttonssimultaneouslyuntil

theparametervalueisshown4.Pushoneofthebuttonsandselectthe

newvalue5.Pushbothbuttonsagaintoconclude

thesetting

Operating the pushbuttonsDisplayreadout

Resulting controller

setup

Normaloperation(oralarm)

Knowncodesand

settings

Codesandsettings

=factorysetting

Normaloperation

Normaloperation

Normaloperation

Alarmrelaisnot

activated

Alarm

ChangeChange

Setvalue

Roomtemp.

Roomtemp.

Poweroff Poweron

Roomtemp.

Roomtemp.

Roomtemp.

Roomtemp.

Roomtemp.

Alarmcode/Faultcode

Alarmcode/Faultcode

Roomtemp.

Roomtemp.

Defrostoperation

Defrostsensortemp.

What to do Initial con-troller setup

Read og change

parameter codes and

settings

Re-establish all factory

settings

Read defrost sensor temp.

Manually start of a

defrost opera-tion

Manually stop of a

defrost opera-tion

Cut out the alarm relais

Read alarm andfault codes


Unknowncodesandset-

tings

Unknownsettings

Normalopeation(oralarm)

Normaloperation

Defrostoperation

Alarmrelayactivated

Alarmrelaisnot

activated

Roomtemp.

Code

Roomtemp.

Roomtemp.

Roomtemp.

Roomtemp.

Roomtemp.

Roomtemp.

Read the other sensor temp. Normal

operationRoomtemp. Sin/Soutsensortemp.


Roomtemp.

Roomtemp.=SoutorSin


Menu survey

FactorysettingIfyouneedtoreturntothefactory-setvalues,itcanbedoneinthisway:-Cutoutthesupplyvoltagetothecontroller-Keepbothbuttonsdepressedatthesametimeasyoureconnectthesupplyvoltage

Function Para-meter

Min. Max.

Normal display

Showsthetemperatureattheselectedsensor - °C

Givethelowerbuttonabriefpushtoseethetempera-tureatthedefrostsensor

- °C

Givebothbuttonsabriefpushsimultaneouslytoseethetemperatureattheotherthermostatsensor

- °C

Thermostat

CutoutvalueforSout Out -50°C 50°C

Temperatureunit r05 °C °F

DifferentialSout r07 0.1K �0K

DifferentialSin r08 0.1K �0K

CorrectionofthesignalfromSout r09 -�0.0K �0.0K

CorrectionofthesignalfromSin r10 -�0.0K �0.0K

DeltaSinSout(Sinreference) r�0 0 10K

Alarm

Delayfortemperaturealarm A0� 0 90min

Dooralarmdelay. A04 0 60min

UpperdeviationforSout(abovethetemp.setting) A05 0K 50K

LowerdeviationforSout(belowthetemp.setting) A06 -50K 0K

UpperdeviationforSin(abovethetemp.setting) A07 0K 50K

LowerdeviationforSin(belowthetemp.setting) A08 -50K 0K

DisplacementofSinalarmswhennightlidison A09 -50K 50K

Compressor

Min.ON-time c01 0min 15min

Min.OFF-time c0� 0min 15min

Cutinfrequencyonsensorfault c0� 0% 100%

Compressorstopatdooralarm(Yes/No) c04 No Yes

Defrost

CompressorONduringdefrost d01 No Yes

Defroststoptemperature d0� 0 �5°CIntervalbetweendefroststarts d0� OFF 48hoursMax.defrostduration d04 0 180min

Timedisplacementsfordefrostcutinsduringstart-up d05 0 60min

Drip-offtime d06 0 �0min

Delayforfanstartordefrost d07 0 �0min

Fanstarttemperature(>�5°C=OFF) d08 -�5 �6°C

Fancutinduringdefrost(yes/no) d09 no yes

DefrostsensorOut:Soutused.Def:Sdefused d10 Out Def

Delayfortemperaturealarmafterdefrost d11 0 �00min

Delayofdisplayviewafterdefrost d1� 0 �0min.

Defrostatpowerup d1� no yes

Realtime clock(ifmounted)

1.Defroststart.Hours t01 OFF ��hours

1.Defroststart.Minutes t11 0 59min

�.Defroststart.Hours t0� OFF ��hours

�.Defroststart.Minutes t1� 0 59min

�.Defroststart.Hours t0� OFF ��hours

�.Defroststart.Minutes t1� 0 59min







SettingofHours t07 0 ��hours

SettingofMinutes t08 0 59min

Fan

Fanstoponcompressorcutout F01 no yes

Delayforfanstopwhencompressorcutsout F0� 0 15min

Fanstopatopendoor(yes/no) F0� No Yes

Miscellaneous

Delayofoutputsignalafterstart-up o01 0 600sec

Digitalinputsignal:OFF=notused,1=Datacommunication,�=Defrost,�=Nightcover,4=Externalstart/stop,5=Coordinateddefrostwithwireconnections6=Doorswitch

o0� OFF 5

Networkaddress(range=0-60) o0�* 0 990

ON/OFFswitch(service-pinmessage) o04* OFF 100

Accesscode o05 OFF 100

Usedsensortype(Pt/PTC) o06 Pt PTC

CoordinateddefrostwithwireconntectionsOFF=notused,1=Maincontroller,�=Secondarycontrol-ler

o1� OFF �

Activethermostat(activesensor)Aut:BoththermostatsOut:onlySout

o14 Aut Out

Displaystep=0.5(onlyifPtsensor)no=0.1,yes=0.5

o15 no yes

Max.Holdtimeaftercoordinateddefrost o16 1 �0min

SelectsensorsignalforthedisplayAut:AutomaticSout/SinchangeoverOut:AlwaysSout,In:AlwaysSin

o17 Aut In

ManualcontrolofoutputsOFF=Nomanualcontrol1:CompressoroutputselectedON�:DefrostoutputselectedON�:FanoutputselectedON4:AlarmoutputselectedON5:DOoutputselectedONWhenmanualcontrolisfinished,thesettingmustbechangedtoOFF.

o18 OFF 5

Relayused(Alarm/light) o�6 1 �

*)Thissettingwillonlybepossibleifadatacommunicationmodulehasbeeninstalledinthecontroller.

SW=1.�x

1� Manual RS8DS�0� © Danfoss 01-�007 EKC�01C

Data

OrderingType Function Code no.

EKC�01C Temperaturecontrollerwithcoordi-nateddefrostviawireconnections 084B7068

EKA17� Realtimeclock 084B7070

EKA171C

Datacommunicationmodule(FTT10module) 084B7255

Datacommunicationmodule(RS485module) 084B7256

EKA161 Displayunit 084B8568

- Wireforthedisplayunit(�mwithplug,�4pcs.) 084B7179

Supplyvoltage 1�Va.c./d.c.+15/-15%

Powerconsumption

�,5VAThecontrollersmustbeconnectedtoseparatetrans-formerofmin.�VA

Sensors(�) Pt1000orPTC(R�5=1000ohm)

Controllersensorsystem

Measuringrange -60to+50°C

Accuracy

±0,5°Cforsensortemperature-�5to+�5°C;±1°Cforsensortemperature-60to-�5°Cand+�5to+50°C

Display LED,�-digits

Digitalinput Signalfromcontactfunction

Electricconnectingcable Max.1.5mm�multi-wirecable

Relays

Refr.relais SPSTNC,Imax.=6Aohmic/�AAC15*inductive

Defrostrelais SPSTNO,Imax.=6Aohmic/�AAC15*inductive

Fanmotorrelais SPSTNC,Imax.=6Aohmic/�AAC15*inductive

Commonterminal Max.11Ainthecommonconnection

AlarmrelaisSPSTNO,Imax.=4Aohmic/1AAC15*inductiveImin.=1mAat100mV**

Ambienttemperature

Dur.operationDur.transport

0-55°C-40-70°C

Density IP54

Approvals

EULowVoltageDirectiveandEMCdemandsreCE-markingcompliedwith.LVD-testedacc.toEN607�0-1andEN607�0-�-9,A1,A�EMC-testedacc.toEN5008�-1andEN607�0-�-9,A

*AC15loadacc.toEN60947-5-1**Goldcoatingensurescutinfunctionatsmallcontactloads

Product survey

Pt1000ohm

Transformer

Realtimeclock

Wirefordisplay

Externaldisplay

Controller

EKC�01C Manual RS8DS�0� © Danfoss 01-�007 1�

Connections

Posteriorviewofcontroller

PlugThebelongingplugsarenotbypacked.•Thegreenplugs(lightonphoto)areofthetypePhöenix.

Theoppositeplugsarewithscrewterminalsandcalled:-MVSTBW�,5/4-ST-5,08-MVSTBW�,5/�-ST-5,08-MCVW1,5/5-ST-�,81

•TheblackplugsareofthetypeAMPmodule�(4-poledand�-poled)(Danfosscansupplysensorswithplug)

SensorsSoutsensormustbeconnected.Sdefisoptional.Sinsensormustbeconnected,ifo14=Autando17differsfromOut(=Aut/=In)

AlarmrelaisThereisnoconnectionbetweenthecontactsinalarmsituationsandwhenthecontrollerisde-energised.Thecontactsareclosedduringnormaloperationwithoutalarm.

DatacommunicationIfadatacommunicationmodulehasbeenmounted,itisimpor-tantthattheinstallationofthedatacommunicationcablebedonecorrectly.Cf.separateliteratureNo.RC.8A.C...

084B7068

Relaisterminals Alarmrelais Roomfordatacom-municationorclock

Supplyvoltageanddigitalinputs

Externaldisplay,ifapplicable

SensorsSin,Sdef,Sout

Coordinateddefrostviadatacommunication

Coordinateddefrostviawireconnections

Main Secondary Secondarycontroller controller controller

ThecablelengthbetweentheexternaldisplaytypesEKA161andEKC�01mustbemax.10m

o1�=1 o1�=� o1�=�


Data communication

Examples

Example of menu display

IfyouwanttoknowmoreaboutoperationofcontrollersviaPC,youmayorderadditionalliterature.

Thispagecontainsadescriptionofafewofthepossibilitiesyouwillhavewhenthecontrollerisprovidedwithdatacommuni-cation.

Eachcontrollerisprovidedwithaplug-inmoduletypeEKA171.

Thecontrollersarethencon-nectedtoatwo-corecable.

Upto60controllersmaybeconnectedtoonecable.

ThiscableisalsoconnectedtoagatewaytypeAKA�4�.

Thisgatewaywillnowcontrolthecommunicationtoandfromthecontrollers.

Itwillcollecttemperatureval-uesanditwillreceivealarms.Whenthereisanalarmthealarmrelaywillbeactivatedfortwominutes.

Thegatewaycannowbecon-nectedtoamodem.

Whenanalarmoccursfromoneofthecontrollers,thegatewaywill-viathemodem-makeaphonecalltotheservicecompany.

Attheservicecompanyamodem,gatewayandPCwithsystemsoftwaretypeAKMhavebeeninstalled.

Allthecontrollers’functionscannowbeoperatedfromthevariousmenudisplays.

Theprogrammewillforexam-pleuploadallthecollectedtemperaturevaluesonceaday.

•Measurementsareshownatonesideandsettingsattheother.

•Youwillalsobeabletoseetheparameternamesofthefunctionsonpage4-9.

•Withasimplechange-overthevaluescanalsobeshowninatrenddiagram.

•Ifyouwishtocheckearliertemperaturemeasurements,youcanseetheminthelogcollection.

AlarmsIfthecontrollerisextendedwithdatacommunication,itwillbepossibletodefinetheimportanceofthetransmittedalarms.Theimportanceisdefinedwiththesetting:1,�,�or0.Whenthealarmthenarisesatsometime,itwillresultinoneofthefollowingactivities:

1=AlarmThealarmmessageissentoffwithalarmstatus1.Thismeansthatthegatewaywithaddress1�5inthesystemwillhaveitsalarmrelayoutputactivatedfortwominutes.Later,whenthealarmceases,thealarmtextwillberetransmitted,butnowwithstatusvalue0.

�=MessageThealarmtextistransmittedwithstatusvalue�.Later,whenthe“message”lapses,thealarmtextisretransmitted,butnowwithstatusvalue0.

�=AlarmAs“1”,butthemastergateway’srelayoutputisnotactivated.

0=SuppressedinformationThealarmtextisstoppedatthecontroller.Itistransmittednowhere.


Appendix

Night lid on or offThecontrollerusesthefunctiontoindicateeithertheSouttemperature(nightlidoff)ortheSintemperaturewhereitalsousesotheralarmlimits(nightlidon).

ThesituationiseitherdeterminedbyacontactfunctionontheDIinputorbytheinteractionbetweenthetwothermostatfunctions.-IfSinconstantlycallsforrefrigerationandSoutisthethermostat

thatcutsinandout,thenightlidisoff.-IfSinparticipatesinthethermostaticcontroltogetherwithSout,

thenightlidhasbeenputon.

Temperature alarmsTherearemin.andmax.limitsforboththeSintemperatureandSouttemperature.ThevaluesforSincanbedisplacedwhentheregulationregistersthatthenightlidhasbeenputon,orifasignalisreceivedattheDI-inputandthisinputhasbeendefinedforsetting�.

How to set the controller1.SettheSoutthermostattotheexpectedtemperature�.Setr�0,sothatSinthermostatwillnotcutout�.Waitforthetemperaturetofall,andtheSoutthermostatwillcut

outandin4.MeasuretheSintemperature(theproducttemperaturewillbea

coupleofdegreeslowerthantheSintemperature)5.IftheSintemperatureissatisfactory,proceedtothenextpoint.

Ifnot,changethesettingoftheSoutthermostatandrepeattheaboveprocedure

6.WhenthesettingoftheSoutthermostathasbeencompletedtheSinthermostatcanbeset.NotetheSintemperature:itwillfluctuateacoupleofdegreesdependingonwhentheSoutthermostatcutsinandout.Regis-terthelowestSintemperature.SettheSinreference(r�0)sothatthereferenceplustheSindifferentialwillbeonedegreelowerthanthelowestSintem-perature.(TheSindifferentialisnormallysmallerthantheSoutdifferential).TheSinreferencemustbesethigherthanthehighestSouttemperature.

If you cannot start the controllerCheck:-thatthesensorsusedareofthesametypeastheonessetinO06-theSinthermostat’ssetting-theoperatingstatusofthecontroller

"Day" : "Night"


RC-E

TDanfosscanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprintedmaterial.Danfossreservestherighttoalteritsproductswithoutnotice.Thisalsoappliestoproductsalreadyonorderprovidedthatsuchalternationscanbemadewithoutsubsequentialchangesbeingnecessaryinspecificationsalreadyagreed.Alltrademarksinthismaterialarepropertyoftherespecitvecompanies.DanfossandDanfosslogotypearetrademarksofDanfossA/S.Allrightsreserved.

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