controller for condensing unit optyma...

Controller for Condensing unitOptyma PlusTM

Manual

2 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM

Introduction

ApplicationCondensing unit control

Advantages• Condensingpressurecontrolinrelationtooutsidetemperature• Fanvariablespeedregulation• Compressoron/offcontrol•Heatingelementcontrolincrankcase•Day/nightcontrolleroperation• Built-inclockfunctionwithpowerreserve•Canbeexpandedwithdatacommunication

PrincipleThecontrollerreceivesasignalfordemandedcooling,anditthenstartsthecompressor.Condenserpressureregulationisperformedagainfollowingasignalfromtheambienttemperaturesensorandthesetreference.Thecontrollerwillthencontrolthefan,whichallowsthecondens-ingtemperaturetobemaintainedatthedesiredvalue.Thecontrollercanalsocontroltheheatingelementinthecrank-casesothatoiliskeptseparatefromtherefrigerant.

Functions•Controlofcondensingtemperature•Controloffanspeed•On/offcontrolofthecompressor•Controlofheatingelementincrankcase•Raisingthecondenserpressureregulationreferenceduringnight

operation•Bothinternalandexternalstart/stopcooling•Safetycut-outactivatedviasignalfromautomaticsafetycontrol

Regulation reference for condensing temperatureThecontrollercontrolsthecondensingtemperatureinrelationtotheambienttemperature.Asetpointisenteredforhowmuchhigherthereferencemustbe.Thereferencecanberaisedatnight.

Day/NightThecontrollerhasaninternalclockfunctionwhichchangesbetweendaytimeandnightoperation.Duringnightoperation,thereferenceisraisedbythe'Nightoffset'value.Thisday/nightsignalcanalsobeactivatedintwootherways:•Viaanon/offinputsignal-DI2•Viadatacommunication.

Reference Nightoffset

NightDay Day

Set Point

Tamb

Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 3

Fan operationThecontrollerwillcontrolthefansothatthecondensingtemperatureismaintainedatthedesiredvalueabovetheoutdoortemperature.

Theusermayselectfromdifferentwaystocontrolthefan:

•InternalspeedregulationHerethefanisspeed-controlledviaterminal5-6.Ataneedof95%andabove,therelayonterminal15-16areactivated,while5-6aredeactivated.ThiscontrolalsousesthesignalontheDI3input.Herethesinesequenceofthevoltageisdetectedsothatazero-crossingcanbeconnected.

•ExternalspeedregulationForlargerfanmotorswithinsufficientinternaloutlet,anexternalspeedregulationcanbeconnectedtoterminal28-29.A0-10Vsignalindicatingthedesiredspeedisthensentfromthispoint.Therelayonterminal15-16willbeactivewhenthefanisinoperation.

Inmenu'F17'theusercandefinewhichofthetwocontrolstouse.

Jog

Min.

Joglow

Jog

Speed

Speed

Required capacity

Fan speed at startWhenthefanisre-startedafteranidleperiod,itwillbestartedataspeedthatissetinthe'JogSpeed'function.Thisspeedismaintainedfor10seconds,afterwhichthespeedchangestotheregulationneed.

Fan speed at low loadsAtlowloadsbetween10and30%,thespeedwillremainatthatwhichissetinthe'FanMinSpeed'function.

Fan speed at low ambient temperaturesToavoidfrequentstart/stopsinlowambienttemperaturesinwhichthefan'scapacityishigh,theinternalamplificationfactorislowered.Thisprovidesasmootherregulation.The'Jogspeed'isalsoloweredintheareafrom10°Canddownto-20°C.Attemperaturesbelow-20°Cthe'JogLow'valuecanbeused.


Compressor controlThecompressoriscontrolledbyasignalattheDI1input.Thecompressorwillstartoncetheinputisconnected.Threerestrictionshavebeenimplementedtoavoidfrequentstart/stops:-OneforminimumONtime-OneforminimumOFFtime-Oneforhowmuchtimemustelapsebetweentwostarts.Thesethreerestrictionshavethehighestpriorityduringregulation,andtheotherfunctionswillwaituntiltheyarecompletebeforeregulationcancontinue.Whenthecompressoris'locked'byarestriction,thiscanbeseeninastatusnotification.IftheDI3inputisusedasasafetystopforthecompressor,aninsufficientinputsignalwillimmediatelystopthecompressor.

Maximum discharge gas temperatureThetemperatureisrecordedbysensorTd.Ifahighertemperatureisdetectedthanthesetmax.temperature,thefan'sspeedwillbesetto100%.Ifthisdoesnotcausethetemperaturetodrop,andifthetemperatureremainshighthroughoutthesetdelaytime,thecompressorwillbestopped.Thecompressorwillonlybere-startedoncethetemperatureis10Klowerthanthesetvalue.Theabovementionedre-startrestrictionsmustalsobecompletebeforethecompressorcanstartonceagain.Ifthedelaytimeissetto'0',thefunctionwillnotstopthecompressor.

High pressure monitoringDuringregulation,theinternalhighpressuremonitoringfunctionisabletodetectanoverthelimitcondensingpressuresothattheregulationcancontinue.However,iftheC73settingisexceeded,thecompressorwillbestopped.If,ontheotherhand,thesignalcomesfromtheinterruptedsafetycircuitconnectedtoDI3,thecompressorwillimmediatelybestoppedandthefanwillbesetto100%.Whenthesignalisonceagain'OK'attheDI3input,theregulationwillresume.

Low pressure monitoringDuringregulation,theinternallowpressuremonitoringfunctionwillcutoutthecompressorupondetectingasuctionpressurethatfallsbelowthelowerlimit,butonlyoncetheminimumONtimeisexceeded.Analarmwillbeissued.

Pump down limitThecompressorwillbestoppedifasuctionpressurethatfallsbelowthesetvalueisregistered,butonlyoncetheminimumONtimeisexceeded.

Heating element in the crankcaseThecontrollerhasathermostatfunctionwhichcancontroltheheatingelementforthecrankcase.Oilcanthusbekeptseparatefromtherefrigerant.Thefunctionisactivewhenthecompressorhasstopped.Thefunctionisbasedontheambienttemperatureandsuctiongastemperature.Whenthetwotemperaturesareequal±atemperaturedifference,powerwillbesuppliedtotheheatingelement.The'CCHoffdiff'settingindicateswhenpowerwillnolongerbesuppliedtotheheatingelement.The'CCHondiff'indicateswhen100%powerwillbesenttotheheatingelement.Betweenthetwosettingsthecontrollercalculatesthewattageandconnectstotheheatingelementinapulse/pausecyclewhichcorrespondstothedesiredwattage.TheTauxsensorcanbeusedtorecordthetemperatureinthecrankcaseifdesired.WhentheTauxsensorrecordsatemperaturelowerthanTs+10K,theheatingelementwillbesetto100%,butonlyiftheambienttemperatureisbelow0°C.


Data communicationIftheuserprefersusingdatacommunicationsothatthecontrollercanbetrackedfromanADAP-KOOL®systemunit,aoptionalmodulemustbemountedinthecontroller.Themodulecanbe:MODBUSorLON.

ImportantAllconnectionstothedatacommunicationMODBUS/LONmustcomplywiththerequirementsfordatacommunicationcables.Seeliterature:RC8AC.

DisplayThecontrollerhasoneplugforadisplay.HeredisplaytypeEKA163BorEKA164B(max.length15m)canbeconnected.EKA163Bisadisplayforreadings.EKA164Bisbothforreadingsandoperation.Theconnectionbetweendisplayandcontrollermustbewithacablewhichhasaplugatbothends.AsettingcanbemadetodeterminewhethertheTcorTsistobereadout.Whenthevalueisreadout,thesecondread-outcanbedisplayedbybrieflypressingthelowerbutton.

OverrideThecontrollercontainsafunctionswhichcanbeusedtogetherwiththeoverridefunctioninthemastergateway/systemman-ager.

Function via data communication Function in gateway/system manager Used parameters in OptymaPlus

Day/Nightschedule Day/Nightcontrol/Timeschedule ---Nightsetback

Digital inputsTherearetwodigitalinputsDI1andDI2withcontactfunctionandonedigitalinputDI3withhighvoltagesignal.Theycanbeusedforthefollowingfunctions:DI1:StartsandstopscompressorDI2:Heretheusercanselectfromvariousfunctions

StatusnotificationfromanexternalsafetyfunctionExternalmainswitchNightsetbacksignalSeparate alarm functionMonitoring of input signal

DI3:Safetysignalfromlow/high-pressureswitchDI3isalsousedtorecordthephase'szero-crossing,whichisusedinthefancontrol.

6 Manual RS8GD402 © Danfoss 03-2012 OptymaPlusTM

Survey of functionsFunction Para-

meterParameter by operation via data communication

Normal display

ThedisplayshowsthetemperaturevalueforthesuctionpressureTsorfromthecon-densingpressureTc.Enterwhichofthetwoaretobedisplayedino17.Duringoperation,whenoneofthetwoisshowninthedisplay,theothervaluecanbeseenbypressingandholdinginthelowerbutton.

Ts/Tc

Thermostat Thermostat controlSet pointThecontroller'sreferenceTcistheoutsidetemperature+setpoint+anyapplicableoffset.Enterthesetpointbypressingthemiddlebutton.Aoffsetcanbeenteredinr13.

Reference

UnitSethereifthedisplayistoshowSI-unitsorUS-units0:SI(°Candbar)1:US(°FandPsig).

r05 Unit°C=0./°F=1(Only°ConAKM,whatevertheset-ting)

Start / stop of refrigerationWiththissettingrefrigerationcanbestarted,stoppedoramanualoverrideoftheoutputscanbeallowed.(Formanualcontrolthevalueissetat-1.Thentherelayout-letscanbeforce-controlledbytherespectivereadingparameters(u58,u59etc.).Herethereadvaluecanbeoverwritten.)Start/stopofrefrigerationcanalsobeaccomplishedwiththeexternalswitchfunc-tionconnectedtoaDIinput.Iftheexternalswitchfunctionisdeselected,theinputmustbeshorted.Stoppedrefrigerationwillgivea”Standbyalarm”.

r12 MainSwitch

1:Start0:Stop-1:Manualcontrolofoutputsallowed

Night setback valueThecontrollerreferenceisraisedbythisvaluewhenthecontrollerswitchestonightoperation.

r13 Nightoffset

ReferenceHerethecurrentcontrollerreferenceforcondensingpressureTccanbereadoutindegrees.

r29 Tc Ref

Minimum condensing temperature (lowestpermittedregulationreference)HerethelowestpermittedreferenceisenteredforthecondensingtemperatureTc.

r82

Maximum condensing temperature(highestpermittedregulationreference)HerethehighestpermittedreferenceisenteredforthecondensingtemperatureTc.

r83

Maximum discharge gas temperatureHerethehighestpermitteddischargegastemperatureisentered.ThetemperatureismeasuredbysensorTd.Ifthetemperatureisexceeded,thefanwillbestartedat100%.Atimerisalsostartedwhichcanbesetinc72.Ifthetimersettingrunsout,thecompressorwillbestoppedandanalarmwillbeissued.Thecompressorwillbereconnected10Kbelowthecut-outlimit,butonlyafterthecompressor'sofftimerhasexpired.

r84

Nightsetbck(startofnightsignal.0=Day,1=Night)

Alarm Alarm settingsThecontrollercangivealarmindifferentsituations.Whenthereisanalarmallthelight-emittingdiodes(LED)willflashonthecontrollerfrontpanel,andthealarmrelaywillcutin.

Withdatacommunicationtheimpor-tanceoftheindividualalarmscanbedefined.Settingiscarriedoutinthe“Alarmdestinations”menuviaAKM.

Delay of a DI2 alarm Acut-out/cut-ininputwillresultinalarmwhenthetimedelayhasbeenpassed.Thefunctionisdefinedino37

A28 AI.DelayDI2

High condensing temperatureThelimitvalue(differenceovernormalreference)towhichthecondensingtempera-turehasincreased,andatwhichanalarmmustbeissued.CanbesetinK.

A70 AirflowDiff

DelaytimeforalarmA70.Setinminutes. A71 AirflowdelReset alarmCtrl.Error

Compressor Compressor controlThestart/stopofthecontrollercanbedefinedinseveralways.Internalonly:Here,onlytheinternalmainswitchinr12isused.External:Here,inputDI1isusedasathermostatswitch.Withthissetting,inputDI2canbedefinedasan'externalsafety'mechanismthatcanstopthecompressor.


Running timesTopreventirregularoperation,valuescanbesetforthetimethecompressoristorunonceithasbeenstarted.Andforhowlongitatleasthastobestopped.

Min.ON-time(inseconds) c01 Min.OntimeMin.OFF-time(inseconds) c02 Min.OfftimeMinimum time between cut-in of relay (inminutes) c07 Restart timeDefinition of compressor control0:Noexternalswitchforstart/stop1:InputDI1usedtostartandstopthecompressor

c71 Comp mode

Delay time for high discharge gas temperature (inminutes)WhensensorTdrecordsatemperaturehigherthanthelimitvalueenteredinr84,thetimerwillstart.Whenthedelaytimeexpires,thecompressorwillbestoppedifthetemperatureisstilltoohigh.Analarmwillalsobeissued.

c72 Disch.Del

Max. pressure (Max. condensing pressure)Themaximumpermittedcondensingpressureissethere.Ifthepressureincreases,thecompressorwillbestopped.

c73 PcMax

Difference for max. pressure (Condensing pressure)Differenceforre-startofcompressorifitiscutoutduetoPcMax.(Alltimersmustexpirebeforere-startispermitted)

c74 PcDiff

Minimum suction pressureEnterthelowestpermittedsuctionpressurehere.Thecompressorisstoppedifthepressuredropsbelowtheminimumvalue.

c75 PsLP

Suction pressure differenceDifferenceforre-startofcompressorifitiscutoutduetoPsLP.(Alltimersmustexpirebeforere-startispermitted)

c76 PsDiff

TheLEDonthecontroller’sfrontwillshowwhetherrefrigerationisinprogress.

Fan Fan controlAmpflification factor KpIftheKPvalueislowered,thefanspeedwillchange.

n04 Kp factor

Integration Time TnIftheTnvalueisincreased,thefanspeedwillchange.

n05 Tn sec

Fan speedTheactualfanspeedisreadouthereasa%ofnominalspeed.

F07 FanSpeed

Change in fan speedApermittedchangeinfanspeedcanbeenteredforwhenthefanspeedistobelow-ered.Thesettingcanbeenteredasapercentagevaluepersecond.

F14 DownSlope

Jog speedSetthefan'sstart-upspeedhere.Aftertensecondsthefunctionjogfunctionwillstopandthefanspeedwillthenbecontrolledbythenormalregulation.

F15 Jog Speed

Jog speed at low temperaturesEnterthedesiredjogspeedforoutsidetemperaturesof-20°Candlowerhere.(Foroutsidetemperaturesbetween+10and-20,thecontrollerwillcalculateandutiliseaspeedbetweenthetwojogsettings.)

F16 LowTempJog

Fan control definition0:Off1:Thefanisconnectedtoterminal5-6andisspeed-controlledbyaninternalphasecut.Therelayonterminal15-16connectsatspeedrequirementsof95%orhigher.

2:Thefanisconnectedtoanexternalspeedcontroldevice.Thespeedcontrolsignalisconnectedtoterminals28-29.Therelayonterminal15-16willconnectwhenregulationisrequired.(Duringexternalcontrol,thesettingsF14,F15andF16willremaininforce)

F17 FanCtrlMode

Minimum fan speedSetthelowestpermittedfanspeedhere.Thefanwillbestoppediftheuserentersalowerspeed.

F18 MinFanSpeed

Maximum fan speedThefan'stopspeedcanbelimitedhere.Thevaluecanbeenteredbysettingthenominalspeedof100%tothedesiredpercentage.

F19 MaxFanSpeed

Manual fan speed controlAnoverrideofthefanspeedcontrolcanbeperformedhere.Thisfunctionisonlyrelevantwhenthemainswitchisinservicemode.

F20 ManualFan%


Phase compensationThevalueminimisestheelectricalnoiseemittedduringphasecontrol.Thevalueshouldonlybechangedbyspeciallytrainedstaff.

F21 FanComp

TheLEDonthecontroller’sfrontwillshowwhetherFanisinprogresssuppliedeitherthroughfanspeedcontroloutputorfanrelay.

Real time clockWhenusingdatacommunicationtheclockisautomaticallyadjustedbythesystemunit.Ifthecontrolleriswithoutdatacommunication,theclockwillhaveapowerreserveoffourhours.

(Timescannotbesetviadatacom-munication.Settingsareonlyrelevantwhenthereisnodatacommunica-tion).

Switch to day operationEnterthetimeatwhichthecontrolreferencebecomestheenteredsetpoint.

t17 Day start

Change to night operationEnterthetimeatwhichthecontrolreferenceisraisedwithr13.

t18 Nightstart

Clock:Hoursetting t07Clock:Minutesetting t08Clock:Datesetting t45Clock:Monthsetting t46Clock:Yearsetting t47

Miscellaneous MiscellaneousIfthecontrollerisbuiltintoanetworkwithdatacommunication,itmusthaveanad-dress,andthe systemunitofthedatacommunicationmustthenknowthisaddress.

Theaddressissetbetween0and240,dependingonthesystemunitandtheselecteddatacommunication.

o03

ThefunctionisnotusedwhenthedatacommunicationisMODBUS.Itisretrievedhereviathesystem'sscanfunction.

o04

Access code 1 (Access to all settings)Ifthesettingsinthecontrolleraretobeprotectedwithanaccesscodeyoucansetanumericalvaluebetween0and100.Ifnot,youcancancelthefunctionwithsetting0.(99willalwaysgiveyouaccess).

o05 Acc.code

Select signal for the display Hereyoudefinethesignaltobeshownbythedisplay.1:Suctionpressureindegrees,Ts.2:Condensingpressureindegrees,Tc.

o17 Display mode

Pressure transmitter settings for Ps Workingrangeforpressuretransmitter-min.value

o20 MinTransPs

Pressure transmitter settings for PsWorkingrangeforpressuretransmitter-max.value

o21 MaxTransPs

Refrigerant setting (onlyif"r12"=0)Beforerefrigerationisstarted,therefrigerantmustbedefined.Youmaychoosebe-tweenthefollowingrefrigerants2=R22.3=R134a.13=Userdefined.17=R507.19=R404A.20=R407C.Warning: Wrong selection of refrigerant may cause damage to the compressor.Otherrefrigerants:HereSetting13isselectedandthenthreefactors-Ref.Faca1,a2anda3-viaAKMmustbeset.

o30 Refrigerant

Digital input signal - D2Thecontrollerhasadigitalinput2whichcanbeusedforoneofthefollowingfunc-tions:0:Theinputisnotused.1:Statusdisplayfromanexternalsafetyfunction(short-circuited=okforcompressoroperation)

2:Mainswitch.Regulationiscarriedoutwhentheinputisshort-circuited,andregula-tionisstoppedwhentheinputisputinpos.OFF.

3:Nightoperation.Whentheinputisshort-circuited,therewillberegulationfornightoperation.

4:Separatealarmfunction.Alarmwillbegivenwhentheinputisshort-circuited.5:Separatealarmfunction.Alarmwillbegivenwhentheinputisopened.6:Inputstatus,onoroff.(DI2statuscanbetrackedviadatacommunication)

o37 DI2config.

Pressure transmitter settings for PC Workingrangeforpressuretransmitter-min.value

o47 MinTransPc

Pressure transmitter settings for PCWorkingrangeforpressuretransmitter-max.value

o48 MaxTransPc


Select the type of condensing unit.Factoryset.Afterthefirstsetting,thevalueis'locked'andcanonlybechangedoncethecontrol-lerhasbeenresettoitsfactorysetting.Whenenteringtherefrigerantsetting,thecontrollerwillensurethatthe'Unittype'andrefrigerantarecompatible.

o61 Unittype

S3 Configuration0 = S3 input not used1 = S3 input used for measuring of discharge temperature

o63 S3config

Save as factory settingWiththissettingyousavethecontroller’sactualsettingsasanewbasicsetting(theearlierfactorysettingsareoverwritten).

o67 -

Define the use of the Taux sensor (S5)0:Notused1:Usedtomeasureoiltemperature2:Otheruse.Measuringofoptionaltemperature.

o69 TauxConfig

Period time for heating element in crankcaseWithinthisperiodthecontrollerwillitselfcalculateanOFFandONperiod.Thetimeisenteredinseconds.

P45 PWM Period

Difference for the heating elements 100% ON pointThedifferenceappliestoanumberofdegreesbelowthe'TambminusTs=0K'value.

P46 CCH_OnDiff

Difference for the heating elements full OFF pointThedifferenceappliestoanumberofdegreesabovethe'TambminusTs=0K'value

P47 CCH_OffDiff

Operating time for condensing unitThecondensingunit'soperatingtimecanbereadouthere.Theread-outvaluemustbemultipliedby1,000inordertoobtainthecorrectvalue.(Thedisplayedvaluecanbeadjustedifrequired)

P48 UnitRuntime

Operating time for the compressorThecompressorsoperatingtimecanbereadouthere.Theread-outvaluemustbemultipliedby1,000inordertoobtainthecorrectvalue.(Thedisplayedvaluecanbeadjustedifrequired)

P49 Comp Runtime

Operating time for heating element in crankcaseTheheatingelement'soperatingtimecanbereadouthere.Theread-outvaluemustbemultipliedby1,000inordertoobtainthecorrectvalue.(Thedisplayedvaluecanbeadjustedifrequired)

P50 CCHRuntime

Number of HP alarmsThenumberofHPalarmscanbereadouthere.(Thedisplayedvaluecanbeadjustedifrequired)

P51 HPAlarmCnt

Number of LP alarmsThenumberofLPalarmscanbereadouthere.(Thedisplayedvaluecanbeadjustedifrequired)

P52 LPAlarmCnt

Number of discharge alarmsThenumberofTdalarmscanbereadouthere.(Thedisplayedvaluecanbeadjustedifrequired)

P53 DisAlarmCnt

Service ServiceRead pressure Pc u01 PcbarReadtemperatureTaux u03 T_auxStatusonDI1input.On/1=closed u10 DI1statusStatusonnightoperation(onoroff)on=nightoperation u13 NightCondReadSuperheat u21 SuperheatSHStatusonDI2input.On/1=closed u37 DI2statusStatus on relay for compressor u58 Comp RelayStatus on relay for fan u59 FanrelayStatus on relay for alarm u62 AlarmrelayStatus on relay (notused) u63 DO6status(notused)Statusonrelayforheatingelementincrankcase u71 CCHRelay

StatusoninputDI3(on/1=230V) u87 DI3status

Read condensing pressure in temperature U22 Tc

Read pressure Ps U23 Ps

Read suction pressure in temperature U24 Ts

ReadambienttemperatureTamb U25 T_ambient

ReaddischargetemperatureTd U26 T_Discharge

Read suction gas temperature at Ts U27 T_Suction


Operating status (Measurement)

Thecontrollergoesthroughsomeregulatingsituationswhereitisjustwaitingforthenextpointoftheregulation.Tomakethese“whyisnothinghappening”situationsvisible,youcanseeanoperatingstatusonthedisplay.Pushbriefly(1s)theupperbutton.Ifthereisastatuscode,itwillbeshownonthedisplay.Theindividualstatuscodeshavethefollowingmeanings:

Ctrl.state:

Normalregulation S0 0Whenthecompressorisoperatingitmustrunforatleastxminutes. S2 2Whenthecompressorisstopped,itmustremainstoppedforatleastxminutes. S3 3Refrigerationstoppedbymainswitch.Eitherwithr12oraDI-input S10 10Manual control of outputs S25 25Norefrigerantselected S26 26Safetycut-outMax.condensingpressureexceeded.Allcompressorsstopped. S34 34

Other displays:Passwordrequired.Setpassword PSRegulationisstoppedviamainswitch OFFNorefrigerantselected refNotypehasbeenselectedforthecondensingunit. typ

Settings from System manager

Settings from AKM(AKMdestination)

Log Alarmrelay SendviaNetworkNon High Low-High

High 1 X X X XMiddle 2 X X XLow 3 X X XLogonly XDisabled

Fault message

InanerrorsituationtheLED’sonthefrontwillflashandthealarmrelaywillbeactivated.Ifyoupushthetopbuttoninthissituationyoucanseethealarmreportinthedisplay.Therearetwokindsoferrorreports-itcaneitherbeanalarmoccurringduringthedailyoperation,ortheremaybeadefectintheinstallation.A-alarmswillnotbecomevisibleuntilthesettimedelayhasexpired.E-alarms,ontheotherhand,willbecomevisiblethemomenttheerroroccurs.(AnAalarmwillnotbevisibleaslongasthereisanactiveEalarm).Herearethemessagesthatmayappear:

Code / Alarm text via data communication

Description Action

A2/---LPalarm Lowsuctionpressure Seeinstructionsforthecondensingunit

A11/---NoRfg.sel. Norefrigerantselected Set o30

A16/---DI2alarm DI2alarm CheckthefunctionthatsendsasignalattheDI2input

A17/---HPAlarm C73/DI3Alarm(High/lowpressurealarm) Seeinstructionsforthecondensingunit

A45/---Standbymode Standbyposition(stoppedrefrigerationviar12orDI1-input)

r12and/orDI1inputwillstarttheregulation

A80/---Cond.blocked Airflowhasdecreased. Cleanthecondensingunit

A96/---MaxDisc.Temp Dischargegastemperatureisexceeded Seeinstructionsforthecondensingunit

A97/---Safetyalarm SafetyfunctiononDI2isactivated CheckthefunctionthatsendsasignalattheDI2input

E1/---Ctrl.Error Faultsinthecontroller

Checksensorandconnection

E20/---PcSensorErr ErroronpressuretransmitterPc

E30/---TauxSensorErr ErroronAuxsensor,S5

E31/---TambSensorErr Erroronairsensor,S2

E32/---TdisSensorErr Errorondischargesensor,S3

E33/---TsucSensorErr Erroronsuctiongassensor,S4

E39/---PsSensorErr ErroronpressuretransmitterPs

Data communicationTheimportanceofindividualalarmscanbedefinedwithasetting.Thesettingmustbecarriedoutinthegroup"Alarmdestinations"


Light-emitting diodes (LED) on front panelTheLED’sonthefrontpanelwilllightupwhentherelevantrelayisactivated.

=Refrigeration=heatingelementincrankcaseison=Fanrunning

Thelight-emittingdiodeswillflashwhenthereisanalarm.Inthissituationyoucandownloadtheerrorcodetothedisplayandcancel/signforthealarmbygivingtheupperbuttonabriefpush.

The buttonsWhenyouwanttochangeasetting,theupperandthelowerbut-tonwillgiveyouahigherorlowervaluedependingonthebuttonyouarepushing.Butbeforeyouchangethevalue,youmusthaveaccesstothemenu.Youobtainthisbypushingtheupperbuttonforacoupleofseconds-youwillthenenterthecolumnwithpa-rametercodes.Findtheparametercodeyouwanttochangeandpushthemiddlebuttonsuntilvaluefortheparameterisshown.Whenyouhavechangedthevalue,savethenewvaluebyoncemorepushingthemiddlebutton.(Ifnotoperatedfor20(5)seconds,thedisplaywillchangebacktotheTs/Tctemperaturedisplay).

Examples

Set menu1.Pushtheupperbuttonuntilaparameterr05isshown2.Pushtheupperorthelowerbuttonandfindthatparameteryou

wanttochange3.Pushthemiddlebuttonuntiltheparametervalueisshown4.Pushtheupperorthelowerbuttonandselectthenewvalue5.Pushthemiddlebuttonagaintofreezethevalue.

Cutout alarm relay / receipt alarm/see alarm code •AshortpressoftheupperbuttonIfthereareseveralalarmcodestheyarefoundinarollingstack.Pushtheuppermostorlowermostbuttontoscantherollingstack.

Set point1.Pushthemiddlebuttonuntilthetemperaturevalueisshown2.Pushtheupperorthelowerbuttonandselectthenewvalue3.Pushthemiddlebuttonagaintoconcludethesetting.

Reading the temperature at Ts (if Tc is the primary display) or Tc (if Ts is the primary display)•Ashortpressofthelowerbutton

DisplayThevalueswillbeshownwiththreedigits,andwithasettingyoucandeterminewhetherthetemperatureistobeshownin°Corin°F.

Operation

Get a good start

Withthefollowingprocedureyoucanstartregulationveryquick-ly:

1Openparameterr12andstoptheregulation(inanewandnotpreviouslysetunit,r12willalreadybesetto0whichmeansstoppedregulation.

2 Selectrefrigerantviaparametero30

3Openparameterr12andstarttheregulation.Start/stopatinputDI1orDI2mustalsobeactivated.

4Gothroughthesurveyoffactorysettings.Makeanynecessarychangesintherespectiveparameters.

5Fornetwork.-Settheaddressino03-Activatescanfunctioninthesystemmanager.

NoteWhendeliveringthecondensingunit,thecontrollerwillbesettothecondensingunittype(settingo61).Thissettingwillbecom-paredwithyourrefrigerantsetting.Ifyouselecta"non-permittedrefrigerant",thedisplaywillshow"ref"andawaitanewsetting.

(Intheeventofacontrollerchange,061mustbesetasindicatedintheinstructionsfromDanfoss)


Menu survey SW=1.3x

ParameterMin.-value Max.-value Factory

settingActual settingFunction Code

Normal operation

Setpoint(regulationreferencefollowsthenumberofdegreesabovetheoutsidetemperatureTamb)

- - - 2,0K 20,0K 8,0K

Regulation

SelectSIorUSdisplay.0=SI(barand°C).1=US(Psigand°F) r05 0/°C 1/F 0/°C

InternalMainSwitch.Manualandservice=-1,Stopregulation=0,Startregulation=1 r12 -1 1 0

Offsetduringnightoperation.Duringnightoperationthereferenceisraisedbythisvalue r13 0 K 10 K 2 K

Readout of reference for Tc r29 - - - -

Min.condensingtemperature(lowestpermittedTcreference) r82 0°C 40°C 10°C

Max.condensingtemperature(highestpermittedTcreference) r83 0°C 50°C 40°C

Max.dischargegastemperatureTd r84 50°C 160°C 135°C

Alarms

AlarmtimedelayonsignalontheDI2input A28 0min. 240min. 30min.

Alarmforinsufficientcoolingincondenser.Settemperaturedifference. A70 3,0K 20,0K 10,0K

DelaytimeforA70alarm A71 5min. 240min. 30min.

Compressor

Min.ON-time c01 5s 240 s 60s

Min.OFF-time c02 3 s 240 s 30 s

Min.timebetweencompressorstarts c07 0min. 30min. 5min.

Pumpdownlimitatwhichthecompressorisstopped C33 0,0bar 15,0bar 0,0bar

Definitionofcompressorcontrol:0=noexternalstart/stop;1=switchonDI1muststart/stopp c71 0 1 1

TimedelayforhighTd.Thecompressorwillstopwhentimeexpires. c72 0min. 20min. 3min.

Max.pressure.Compressorstopsifahigherpressureisrecorded c73 7,0bar 50,0bar 23,0bar

Differenceformax.pressure(c73) c74 1,0bar 10,0bar 3,0bar

Min.suctionpressurePs.Compressorstopsifalowerpressureisrecorded c75 0,1bar 10,0bar 3,0bar

Differenceformin.suctionpressure c76 0,1bar 5,0bar 0,7bar

Control parametersAmplificationfactorKpforPI-regulation n04 1,0 20,0 7,0IntegrationtimeTnforPI-regulation n05 20 120 40FanReadoutoffanspeedin% F07 - - -Permittedchangeinfanspeed(toalowervalue)%persecond. F14 1,0% 5,0% 1,0%Jogspeed(speedasa%whenthefanisstarted) F15 10% 100% 40%Jogspeedatlowtemperature F16 0% 40% 10%Definitionoffancontrol:0=Off;1=Internalcontrol.2=Externalspeedcontrol F17 0 2 1Minimumfanspeed.Decreasedneedwillstopthefan. F18 0% 40% 10%Maximumfanspeed F19 40% 100% 100%Manualcontrolofthefan'sspeed.(Onlywhenr12issetto-1) F20 0% 100% 0%Phasecompensation(shouldonlybechangedbyspeciallytrainedpersonnel.) F21 0 50 20Real time clockTimeatwhichtheyswitchtodayoperation t17 0hrs 23hrs 0Timeatwhichtheyswitchtonightoperation t18 0hrs 23hrs 0Clock-Settingofhours t07 0hrs 23hrs 0Clock-Settingofminute t08 0min. 59min. 0Clock-Settingofdate t45 1 day 31 day 1Clock-Settingofmonth t46 1mon. 12mon. 1Clock-Settingofyear t47 0 year 99year 0Miscellaneous

Networkaddress o03 0 240 0On/Offswitch(ServicePinmessage)IMPORTANT!o61mustbesetpriortoo04(usedatLON485only)

o04 0/Off 1/On 0/Off

Accesscode(accesstoallsettings) o05 0 100 0Selectsignalfordisplayview.1=Suctionpressureindegrees,Ts.2=Condensingpressureindegrees,Ts

o17 1 2 1


PressuretransmitterworkingrangePs-min.value o20 -1bar 5bar -1PressuretransmitterworkingrangePs-max.value o21 6bar 200bar 12

Refrigerantsetting:2=R22.3=R134a.13=Userdefined.17=R507.19=R404A.20=R407C.

* o30 0 20 0

InputsignalonDI2.Function: (0=notused,1=Externalsafetyfunction.Regulatewhenclosed,2=externalmainswitch,3=Nightoperationwhenclosed,4=alarmfunctionwhenclosed,5=alarmfunctionwhenopen.6=on/offStatusformonitoring.

o37 0 6 0

PressuretransmitterworkingrangePc–min.value o47 -1bar 5bar 0bar

PressuretransmitterworkingrangePc–max.value o48 6bar 200bar 32bar

Settingofcondensingunittype(isfactorysetwhenthecontrollerismountedandcannotbesubsequentlychanged)

* o61 0 42 0

ThesensorinputS3istobeusedtomeasurethedischargegastemperature(1=yes) o63 0 1 0

Replacethecontrollersfactorysettingswiththepresentsettings o67 Off On Off

DefinestheuseoftheTauxsensor:0=notused;1=measuringofoiltemperature;2=otheroptional use

o69 0 2 0

Periodtimeforheatingelementincrankcase(ON+OFFperiod) P45 30 s 255s 240 sDifferenceforheatingelements100%ONpoint P46 -20°C -5°C -10°CDifferenceforheatingelements100%OFFpoint P47 5°C 20°C 10°CRead-outofoperatingtimeforcondenserunit.(Valuemustbemultipliedby1,000).Thevaluecanbeadjusted.

P48 - - 0h

Read-outofcompressoroperatingtime.(Valuemustbemultipliedby1,000).Thevaluecanbeadjusted.

P49 - - 0h

Read-outofoperatingtimeofheatingelementincrankcase.(Valuemustbemultipliedby1,000).Thevaluecanbeadjusted.

P50 - - 0h

Read-outofnumberofHPalarms.Thevaluecanbeadjusted. P51 - - 0 Read-outofnumberofLPalarms.Thevaluecanbeadjusted. P52 - - 0Read-outofnumberofTdalarms.Thevaluecanbeadjusted. P53 - - 0Service

Readout pressure on Pc u01 bar

ReadouttemperatureTaux u03 °C

StatusonDI1input.1=on=closed u10

Statusonnightoperation(onoroff)1=on=nightoperation u13

Readoutsuperheat u21 K

StatusonDI2input.1=on=closed u37

Statusonrelaytocompressor.1=on=closed ** u58

Statusonrelaytofan.1=on=closed ** u59

Statusonrelaytoalarm.1=on=closed ** u62

Statusonrelay"terminal17-19".1=on=closed ** u63

Statusonrelaytoheatingelementincrankcase.1=on=closed ** u71

StatusonhighvoltageinputDI3.1=on=230V u87Readout condensing pressure in temperature U22 °CReadout pressure Ps U23 barReadout suction pressure in temperature U24 °CReadoutambienttemperatureTamb U25 °CReadoutdischargetemperatureTd U26 °CReadout suction gas temperature Ts U27 °C

continued Code Min. Max. Fac. Actual

*)Canonlybesetwhenregulationisstopped(r12=0)**)Canbecontrolledmanually,butonlywhenr12=-1


DI1Digitalinputsignal.Usedtostart/stopcooling(roomthermostat)Startswhentheinputisshort-circuited.

DI2Digitalinputsignal.Thedefinedfunctionisactivewhentheinputisshort-circuited/opened.Thefunctionisdefinedino37.

AOOutputsignal,0-10V.Mustbeusedifthefanisequippedwithinternalspeedcontroland0-10Vd.c.input,e.g.EC-motor.

PcPressuretransmitter,ratiometricAKS32R,0to32barConnecttoterminal30,31and32.

S2Airsensor,Tamb.Pt1000ohmsensor,eg.AKS11

S3Dischargegassensor,Td.Pt1000ohmsensor,eg.AKS21

S4Suctiongastemperature,Ts.Pt1000ohmsensor,eg.AKS11

S5, Extratemperaturemeasurement,Taux.Pt1000ohmsensor,eg.AKS11

PsPressuretransmitter,ratiometrice.g. AKS32R,-1to12barConnectedtoterminal30,43and44.

EKA DisplayIfthereisbeexternalreading/operationofthecontroller,displaytypeEKA163BorEKA164Bcanbeconnected.

RS485 (terminal 51, 52,53)Fordatacommunication,butonlyifadatacommunicationmoduleisinsertedinthecontroller.ThemodulecanbeMODBUS/LON.Terminal51=screenTerminal52=A(A+)Terminal53=B(B-)

Ifdatacommunicationisused,itisimportantthattheinstallationofthedatacommunicationcableisperformedcorrectly.SeeseparateliteratureNo.RC8AC…

Supply voltage230Va.c.(Thismustbethesamephaseforall230Vconnections).

FANFanconnection.Speedcontrolledinternally.

AlarmThereisaconnectionbetweenterminal7and8inalarmsituationsandwhenthecontrolleriswithoutpower.

CompCompressor. Thereisaconnectionbetweenterminal10and11,whenthecompressorisrunning.

CCHHeatingelementinthecrankcaseThereisconnectionbetweenterminals12and14whenheatingtakesplace.

FanThereisconnectionbetweenterminals15and16whenthefan'sspeedisraisedtoover95%.(Fansignalchangesfromterminal5-6to15-16.Connectwirefromterminal16tothefan.)

DI3Digitalinputsignalfromlow/highpressuremonitoring.Thesignalmusthaveavoltageof0/230VAC.

Electric noiseCablesforsensors,DIinputsanddatacommunicationmustbekeptseparatefromotherelectriccables:-Useseparatecabletrays-Keepadistancebetweencablesofatleast10cm.-LongcablesattheDIinputshouldbeavoided

Installation considerationsAccidentaldamage,poorinstallation,orsiteconditions,cangiverisetomalfunctionsofthecontrolsystem,andultimatelyleadtoaplantbreakdown.Everypossiblesafeguardisincorporatedintoourproductstopreventthis.However,awronginstallation,forexample,couldstillpresentproblems.Electroniccontrolsarenosubstitutefornormal,goodengineeringpractice.Danfosswillnotberesponsibleforanygoods,orplantcompo-nents,damagedasaresultoftheabovedefects.Itistheinstaller'sresponsibilitytochecktheinstallationthoroughly,andtofitthenecessarysafetydevices.Specialreferenceismadetothenecessityofsignalstothecontrollerwhenthecompressorisstoppedandtotheneedofliquidreceiversbeforethecompressors.YourlocalDanfossagentwillbepleasedtoassistwithfurtheradvice,etc.

Connections


DataSupplyvoltage 230Va.c.+10/-15%.5VA,50/60HzSensorS2,S3,S4,S5, Pt 1000

Accuracy

Measuring range -60to+120°C(S3to150°C)

Controller ±1Kbelow-35°C±0.5Kbetween-35to+25°C;±1Kabove+25°C

Pt 1000 sensor ±0.3Kat0°C±0.005Kpergrad

Measuring of Pc,Ps

Pressure trans-mitter Ratiometric.eg.AKS32R

Display LED,3-digits

Externaldisplay EKA163Bor164B

Digital inputs DI1,DI2

Signal from contact functionsRequirementstocontacts:GoldplatingCablelengthmustbemax.15mUseauxiliaryrelayswhenthecableislonger

DigitalinputDI3 230Va.c.fromsafetypressostat.Low/highpressure

Electricalcon-nectioncable Max.1.5mm2multi-corecable

Solid state output

Fan Max.240Va.c.,Min.28Va.c.Max.1,5ALeak<1mA

Relays*

CE(250Va.c.)

Comp,CCH 4(3)A

Alarm,Fan 4(3)A

Analogoutput 0-10Vd.c.(forexternalspeedcontroloffans)Min.load=10Kohm.(Max.1mA)

Environments

0to+55°C,Duringoperations-40to+70°C,Duringtransport20-80%Rh,notcondensedNoshockinfluence/vibrations

Density IP20

Mounting DIN-railorwall

Weight 0.4KgData communi-cation Extensionoptions MODBUS/LON

Powerreservefortheclock 4hours

Approvals

ECLowVoltageDirectiveandEMCdemandsreCE-markingcompliedwithLVDtestedacc.EN60730-1andEN60730-2-9,A1,A2EMC-testedacc.EN61000-6-2andEN61000-6-3

*CompandCCHare16Arelays.AlarmandFanare8Arelays.Max.loadmustbeobserved


EL-M

SSM

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

OrderingType Function Code no.

Optyma PlusTMCondensing unit controllerPrepared for data communicationPlugforscrewterminalsnotenclosed

084B8135(12 pcs.)

Plug Plugwithscrewterminals 084B8164(12 set)

EKA178B DatacommunicationmoduleMODBUS 084B8571

EKA175 DatacommunicationmoduleLONRS485 084B8579

EKA163B Externaldisplaywithplugfordirectconnection 084B8574

EKA164B Externaldisplaywithoperationbuttonsandplugfordirectconnections 084B8575

Wirewithplug Wirefordisplayunit(9m,withplug) 084B7630(24 pcs.)

EKA183A Programmingkey 084B8582

controller for condensing unit optyma...

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