Danfoss AK-CC 550 - System Configuration and Settings; Fan and Clock Settings

AK-CC550 Manual RS8EN502 © Danfoss 02-2010 19
AKV valve’s time period in seconds
Shouldonlybesettoalowervalueifitisadecentralisedplantandthesuction
pressureuctuatesalotandinlinewiththeopeningoftheAKVvalve.
n13 AKVPeriod
Startup time for signal reliability
IfthecontrollerdoesnotobtainareliableS1signalwithinthisperiodoftimeitwill
inotherwaystrytocreateastablesignal.(Atoohighvaluemayresultinaooded
evaporator).
Thevalueshouldonlybechangedbyspeciallytrainedsta.
n15 StartUptime
Average opening degree
Thecontrollercontinuouslyregistersthevalve’sopeningdegreeandusesthevaluein
its regulation.
Thevalueshouldonlybechangedbyspeciallytrainedsta.
n16 AKV Dim.
Signal reliability at startup
Theregulationusesthevalueasstartvalueforthevalve’sopeningdegreeforeach
thermostatcutin.Inconnectionwithadaptivecontrolthecontrollercontinuously
calculatesanewvalue.
Thevalueshouldonlybechangedbyspeciallytrainedsta.
n17 StartOD%
Stability factor for regulation of superheat (Stability)
Withahighervaluethecontrolfunctionwillallowagreateructuationofthesuper-
heat before the reference is changed.
Thevalueshouldonlybechangedbyspeciallytrainedsta.(Factorysetting=4.0)
n18 -
Ampflication factor
Expertsettingforinjectionfunction
Thevalueshouldonlybechangedbyspeciallytrainedsta.
n23 MTR Kp factor
Integration time
Expertsettingforinjectionfunction
Thevalueshouldonlybechangedbyspeciallytrainedsta.
n24 MTR Tn sec
Choice of sensor for superheat function (canonlybesetif"r12"=0)
1:PressuretransmittertypeAKS32R
2:TemperaturesensorS1(Pt1000Ohmat0°C)
n57 Pe/S1select
Fan Fan control
Fan stop temperature
Thefunctionstopsthefansinanerrorsituation,sothattheywillnotprovidepower
totheappliance.Ifthedefrostsensorregistersahighertemperaturethantheoneset
here, the fans will be stopped. There will be re-start at 2 K below the setting.
Thefunctionisnotactiveduringadefrostorstart-upafteradefrost.
Withsetting+50°Cthefunctionisinterrupted.
F04 FanStopTemp.
Pulse operation of fan
0: No pulse operation
1:Pulseoperationwhenthethermostatdoesnotcallforrefrigeration
2:Pulseoperationwhenthethermostatdoesnotcallforrefrigeration,butonlydur-
ing night operation
F05 FanPulseMode
Pulse operation period for fan
Heretheoverallpulsetimeisset.ThesumofON-toandOFFtime.
F06 Fancycle
ON time for fan
Herethe%partoftheperiodthefansaretobeinoperationisset.
F07 FanON%
TheLEDonthecontroller’sfrontwillindicatewhetheradefrostisgoingon. FanRelay
Hereyoucanreadthefanrelaystatus,
or force-control the relay in “Manual
control”mode.
Real time clock
Whenusingdatacommunicationtheclockisautomaticallyadjustedbythesystem
unit.Ifthecontrolleriswithoutdatacommunication,theclockwillhaveapower
reserveoffourhours.
(Timescannotbesetviadatacom-
munication.Settingsareonlyrelevant
when there is no data communica-
tion).
Real-time clock
Youcansetuptosixindividualtimesfordefroststartsforeach24-hourperiod.There
is also a date indication used for registration of temperature measurements.
Defrost start, hour setting t01-t06
Defroststart,minutesetting(1and11belongtogether,etc.)
Whenallt01tot16equal0theclockwillnotstartdefrosts.
t11-t16
Clock:Hoursetting t07
Clock:Minutesetting t08
Clock:Datesetting t45
Clock:Monthsetting t46
Clock:Yearsetting t47