Post on 10-Mar-2018
transcript
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.
4 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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.
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 5
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.
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 7
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%
8 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 9
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
10 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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"
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 11
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)
12 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 13
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
14 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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
Optyma Plus TM Manual RS8GD402 © Danfoss 03-2012 15
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
16 Manual RS8GD402 © Danfoss 03-2012 Optyma Plus TM
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