REFRIGERATION AND AIR CONDITIONING

Data communication cabelfor ADAP-KOOL® refrigeration ControlsDANBUSS Data communication system

Installation Guide

� InstallationGuide RC0XA40� © Danfoss 07/�006 DANBUSS

Systemdescription................................................................................................................................................................ �Generalinformationaboutdatacommunication...................................................................................................... 3Summaryofrequirements.................................................................................................................................................. 3Cabletype................................................................................................................................................................................. 3Cablelayout.............................................................................................................................................................................. 4Numberofcontrollers.......................................................................................................................................................... 5Cableends................................................................................................................................................................................ 5ControlpaneltypeAKA�1.................................................................................................................................................. 6SignalamplifiertypeAKA���........................................................................................................................................... 8Terminals.................................................................................................................................................................................10Addresscoding.....................................................................................................................................................................11

Theindividualunitsinthesystemareconnectedbyatwo-corecable.Alldatacommunicationbetweentheunitstakesplacethroughthiscable.Thefollowinginformationmayforinstancebetransmittedviathecable:-Setpointsandregulationparametersforallconnectedcontrollers.Theinformationissentfrom

controlpaneltypeAKA�1orfromaPC,ifonehasbeenconnected.-Displayandcollectionofoperatingdatafromallthecontrollers.

Toallowthesystemtodistinguishbetweentheconnectedunits,eachunitisassignedanaddress.Thisaddressissetontheunit,andamax.1�4addressableunitsmaybeconnected.

Forevery�5units,orinsystemswithverylongcablesections,anamplifiertypeAKA���mustbemountedinthedatacommunicationcable.Anamplifierisnotprovidedwithanaddresscodeandisnotsubjecttothelimitationof1�4units.

AsystemmustbefittedwithaGateway,ifthefollowingisrequired:-PCconnection-separateprinterconnection-modem(communicationviatelephonecable)-hook-upoftwoseparatedatacommunicationsystems

Contents

System description

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General information about data communication

Adatacommunicationcomprisesthedifferentelementsneededtocarryoutatransferofdatabetweentwounits.Therearebothhardwareandsoftwareelements.Hardwareintheformofwiresandtransmittingandreceivingcircuits,andsoftwareensuringthatthemessagesinquestionaresentandreceivedbythecorrectunits.Wheninformationhastobetransmitted,thesenderisallocated“timetospeak”inthecommunicationcable.Theinformationistransmitted,andthesendernowwaitsforthereceivertoanswerthat“theinformationhasbeenreceivedandisunderstood”.Notuntilthesenderreceivesamessageofacknowledgementwilltheinformationtransactioninquestionbeterminated.Iftherearedisturbancesduringthedatatransmissionsothattheinformationisnotunderstood,thesenderwillrepeatthetransmission.Ifthesenderisnotsuccessfulindeliveringtheinformationafterseveralattempts,thesenderwillgiveuptryingandinsteaddeliveranerrormessage.

Experiencehasshownthatthenumberofunsuccessfultransmissionsanderrormessagesishigher,thepoorertheinstallationofthedatacommunicationcable.Adescriptionthereforefollowsofanumberofinstructionsandrequirementsthathavetobecompliedwithtoobtaindatacommunicationwithoutproblems.

Toensurethatthedatacommunicationwilltakeasatisfactorycourse,alisthasbeensetupofrequirementsmadefortheinstallationofthedatacommunicationsystem.Theindividualitemsareexplainedinmoredetailinthefollowingsection.Summary:-Complywiththespecificationsforthecable-Pair-twistedwireswithscreenmustbeused-Thescreenmustbeconnectedatbothends,andthescreenmusttouchnothingbut

the“K1”terminals-Thetwowiresthataretwistedmustbeused-Thewiresareloopedonfromunittounit.“L”isconnectedto“L”,and“H”isconnectedto“H”-Keepthecableawayfromelectricsourcesofnoise-Ifthereareseveral“vacant”wiresinthecable,theymustexclusivelybeusedforDANBUSSdata

communication-Avoidbranchconnectionsonthecable-Performacorrectterminationofthecableends

Thedatacommunicationcablemustcomplywiththefollowingspecifications:-Pair-twistedwires-�to6cmpertwist-Dampinglessthan8dBper1000mat100kHz-Moistureproofjacketifthecableismountedinmoistsurroundings,e.g.concreteducts,

ortrenches-Itisrecommendedthatthecableisscreened-Thecablemustbewithscreen

Thefollowingcabletypescomplywiththespecifications:NKTtypeSKPS�x�x0.6mmCoferrotypeLiYCY�x�x0.5mmJydskKabeltypePTS�x�x0.6mm

Moistureproofcable:CoferrotypeRE-�Y(ST)Y�x�x0.5mm

Theuseofacablewithatleasttwosetsofpair-twistedwiresisrecommended.Thisprovidesgreaterflexibility,ifthecablelayouthastobeextended/changedatalaterdate.

Summary of requirements

Cable type

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Cablesleadingintotheopen,e.g.betweentwobuildings,shouldalwaysbedugdown.

Cablesshouldlikewisebekeptatasafedistancefromhigh-voltagecables,transformerstations,etc.

Ingeneralthecableshouldbeloopedfromthefirstunittothenextunit,andsoon.Howthecableistobeconnectedtotheindividualcontrollersisdescribedinthesection“Terminals”.

Exceptionally,branchconnectionsmaybeallowedfromthe“maincable”.Thisishoweveronlyallowed,ifthedistancefromthe“maincable”totheunitislessthan5m.

Thelengthofthedatatransmissionislimitedto1�00m,ifthesignalisnottobeamplified.Whendis-tancesaregreater,anamplifiertypeAKA���mustbemountedforeach1�00m(cf.alsothesection“Numberofcontrollers”).

Cable layout

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ADANBUSSsystemmayconsistofasmanyas�56x1�4addressableunits.Eachunitisidentifiedwithasystemaddressnumbered,asfollows:“yyy:xxx”.Inthisdesignation,yyyindicatesanetworknumberandxxxacontrolleraddress.Therearethefollowinglimitations:

-Asystemmayconsistofupto�56networks,eachoneofwhichiscontrolledbyagateway.

-Withineachnetwork,upto1�4addressableunitsmaybeinstalled.AmplifierstypeAKA���donotoccupyanaddress.ControlpaneltypeAKA�1acceptsoneaddressforeachpanel,butonlywhenthepanelisconnectedtothenetwork.

-AnamplifiertypeAKA���mustbeusedforeach�5addressableunits.

Number of controllers

Ifcorrectdatatransmissionistobeensured,therearestrictrequirementsforthetreatmentofthecableends.Generally:-Avoidcablejointsatpointsotherthantheindividualcontrollers.

-Donotstripmoreofthecablethanabsolutelynecessary.

-Thecorrectwiresinthecablemustbeconnectedtothecontroller.Althoughtherearefourwiresinthecableinsidethescreen,youcannotsimplychooseanycolouryoufancy.Thewiresaretwistedinpairs,anditisarequirementthatatwisted pairbeused.

-Ifthereisascreenonthecable,itmustbeconnectedtothecontrolleratbothends.

-Whenallcableshavebeenmountedonthedifferentunits,a setting must be made for each unit.Thissettingindicateswhetherthedatasignalistoberetransmittedfromtheunit,orwhetheritstopsthere.Onanaddressableunititisdoneveryeasilybysettingaswitch.Attheextremepointsofthedatatransmissionthe“BUSTERM”(bustermination)switchontheunitisputinpos.ON.Onallotherunits,inpos.OFF.(Ifonlyonecontrollerismountedinthesystem,theswitchisputinpos.ON).

ForcontrolpaneltypeAKA�1therearevariousoptionswhicharealldescribedinthesectionbelow:“ControlpaneltypeAKA�1”.

InasignalamplifiertypeAKA���thedatasignalwillbedividedintotwoseparateelectricalunits,andeachconnectionherewillbeconsideredastheextremeendofthedatatransmission.Pleaserefertothesectionbelow:“SignalamplifiertypeAKA���”.

Cable ends

ON OFF OFF ON

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ControlpaneltypeAKA�1isfittedwitha�mlongspiralwireandplug,sothatitcanbeconnectedtoandremovedfromaninstallation,asrequired.Connectiontotheinstallationtakesplaceviaasockettowhichthedatatransmissioncableisrouted.Connectionmaybemadetoanycontroller,gatewayoramplifierinthesystem,orthesocketmaybemountedinthedatatransmissioncable.Nosystemaddresshastobesetinacontrolpanel.Thesystemwillitselffindavacantaddressforit.Itishoweveraconditionthatall1�4addresseshavenotalreadybeentaken.Therearerequirementstobecompliedwith,ifcorrectdatatransmissionistobeensuredbetweentheunits.Theserequirementswilldependonwhereintheinstallationthecontrolpanelistobeconnected.Threeconnectionoptionsaredepictedbelow:

Cable length less than 3 metres

Whenthecablelengthislessthan3metres,thecontrolpanelmaybeconnecteddirectlytoanycontrollerinthesystem.

Ifthecontrolpanelisconnectedinthisway,thefollowingmustbedone:-Thesupplyvoltagetothecontrolpanelmustbetakenfromthecontroller.-The“BUSTERM”switchontheconnectedcontrollersmustbeputinpos.ONorOFF,dependingon

howthedatasignalisretransmittedtothecontrollers(cf.theearliersection“Cableends”).(Ifonlyonecontrollerismountedinthesystem,theswitchisputinpos.ON).

Cable length over 3 metres and control panel connected between two controllers

Whenthecableisover3metreslong,thesocketcannotbemountedasabranchconnection;itmustinsteadbeincludedaspartofthedatacommunicationsystem.

Control panel type AKA 21

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Ifthecontrolpanelisconnectedinthisway,thefollowingmustbedone:-Anexternalsupplyvoltageunitisaddedtothecontrolpanel.Thedistancebetweenthecontrol

panel’ssocketandthesupplyvoltagemustnotexceed5metres.(Therequirementofthevoltagesupplyis5Vd.c.±0.�V,100mA).

-The“BUSTERM”switchontheconnectedcontrollersisputinpos.ONforcontrollerswherethesignalstops,andinpos.OFFforcontrollerswherethedatasignalisretransmitted.

Cable length over 3 metres and control panel is connected to one of the units at the extreme ends

Whenthecableisover3metreslong,thesocketcannotbemountedasabranchconnection;itmustinsteadbeconnectedaspartofthedatacommunicationsystem.

Ifthecontrolpanelisconnectedinthisway,thefollowingmustbedone:-Anexternalsupplyvoltageunitisaddedtothecontrolpanel.Thedistancebetweenthecontrol

panel’ssocketandthesupplyvoltagemustnotexceed5metres.(Therequirementofthevoltagesupplyis5Vd.c.±0.�V,100mA).

-The“BUSTERM”switchontheconnectedcontrollerisputinpos.OFF(ifonlyonecontrollerhasbeenmountedinthesystem,puttheswitchinpos.ON).

-Aterminationhastobearrangedatthecontrolpanel’ssocket.Thisterminationiscarriedoutwithresistors,asshowninthedrawing.

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AKA���isusedfor“refreshing”thedatasignalwhenwiresarelongandtherearemanycontrollers(cf.earlier).

Thesignalamplifier“refreshes”thesignalonthesecondoutputregardlessofthedirection.

DataPowersupply:�30Va.c.,3VADANBUSSconnections:�

Signal amplifier type AKA 22

Repeater

(Phoenixno:�7444�9)

Powersupply

(Phoenixno:�938840)

AKA���=Powersupply+Repeater

OrderingTypeAKA���: 084B2240

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Examplesofconnectionsandhowterminationiscarriedout

1

�

3

Termination

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Thevariousunitsthatcanbeconnectedtothedatacommunicationcablehavethefollowingtermi-nals:

Controller and gateway

No.K7 +5VK6 NotusedK5 NotusedK4 HK3 LK� 0VK1 Screen

TerminalsK3andK4(LandH)areloopterminalsthatleadthebuscableontothenextunit(LmustbeconnectedtoL,andHtoH).TerminalsK�andK7(0/+5V)canbeusedforsupplyingvoltagetoonecontrolpaneltypeAKA�1.

Terminals

Socket for control panel (screw terminals)(Codeno.084B�071)

Control panel (9-poled D-sub plug)(NotsuppliedbyDanfoss)

No.9-6 Noconnection5 L4 H3 0V� +5V1 Screen

Screen connection

No.K1 Screen

Thescreenmustbeconnectedatboth ends,anditmustbeconnectedtoK1,and nothing else.

L H 0 V 5V

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Address coding Controllersandgatewaysmustalwaysbeset/programmedwithanaddresscode.

ControllersHeretheaddresscodeissetwithanumberofswitchesontheunit’sprintedcircuit.Switches1-7areforaddresscoding(switch8isforsettingof50or60Hzsupplyvoltage).Theaddressisfactory-setat0.

Switch Aderess

1 � 3 4 5 6 7 no. 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 � 1 1 0 0 0 0 0 3 0 0 1 0 0 0 0 4 1 0 1 0 0 0 0 5 0 1 1 0 0 0 0 6 1 1 1 0 0 0 0 7 0 0 0 1 0 0 0 8 1 0 0 1 0 0 0 9 0 1 0 1 0 0 0 10 1 1 0 1 0 0 0 11 0 0 1 1 0 0 0 1� 1 0 1 1 0 0 0 13 0 1 1 1 0 0 0 14 1 1 1 1 0 0 0 15 0 0 0 0 1 0 0 16 1 0 0 0 1 0 0 17 0 1 0 0 1 0 0 18 1 1 0 0 1 0 0 19 0 0 1 0 1 0 0 �0 1 0 1 0 1 0 0 �1 0 1 1 0 1 0 0 �� 1 1 1 0 1 0 0 �3 0 0 0 1 1 0 0 �4 1 0 0 1 1 0 0 �5 0 1 0 1 1 0 0 �6 1 1 0 1 1 0 0 �7 0 0 1 1 1 0 0 �8 1 0 1 1 1 0 0 �9 0 1 1 1 1 0 0 30

Switch Address

1 � 3 4 5 6 7 no. 1 1 1 1 1 0 0 31 0 0 0 0 0 1 0 3� 1 0 0 0 0 1 0 33 0 1 0 0 0 1 0 34 1 1 0 0 0 1 0 35 0 0 1 0 0 1 0 36 1 0 1 0 0 1 0 37 0 1 1 0 0 1 0 38 1 1 1 0 0 1 0 39 0 0 0 1 0 1 0 40 1 0 0 1 0 1 0 41 0 1 0 1 0 1 0 4� 1 1 0 1 0 1 0 43 0 0 1 1 0 1 0 44 1 0 1 1 0 1 0 45 0 1 1 1 0 1 0 46 1 1 1 1 0 1 0 47 0 0 0 0 1 1 0 48 1 0 0 0 1 1 0 49 0 1 0 0 1 1 0 50 1 1 0 0 1 1 0 51 0 0 1 0 1 1 0 5� 1 0 1 0 1 1 0 53 0 1 1 0 1 1 0 54 1 1 1 0 1 1 0 55 0 0 0 1 1 1 0 56 1 0 0 1 1 1 0 57 0 1 0 1 1 1 0 58 1 1 0 1 1 1 0 59 0 0 1 1 1 1 0 60

Switch Address

1 � 3 4 5 6 7 no. 1 1 0 1 1 0 1 91 0 0 1 1 1 0 1 9� 1 0 1 1 1 0 1 93 0 1 1 1 1 0 1 94 1 1 1 1 1 0 1 95 0 0 0 0 0 1 1 96 1 0 0 0 0 1 1 97 0 1 0 0 0 1 1 98 1 1 0 0 0 1 1 99 0 0 1 0 0 1 1 100 1 0 1 0 0 1 1 101 0 1 1 0 0 1 1 10� 1 1 1 0 0 1 1 103 0 0 0 1 0 1 1 104 1 0 0 1 0 1 1 105 0 1 0 1 0 1 1 106 1 1 0 1 0 1 1 107 0 0 1 1 0 1 1 108 1 0 1 1 0 1 1 109 0 1 1 1 0 1 1 110 1 1 1 1 0 1 1 111 0 0 0 0 1 1 1 11� 1 0 0 0 1 1 1 113 0 1 0 0 1 1 1 114 1 1 0 0 1 1 1 115 0 0 1 0 1 1 1 116 1 0 1 0 1 1 1 117 0 1 1 0 1 1 1 118 1 1 1 0 1 1 1 119 0 0 0 1 1 1 1 1�0 1 0 0 1 1 1 1 1�1 0 1 0 1 1 1 1 1�� 1 1 0 1 1 1 1 1�3 Cannotbeused 1�4 Mastergateway 1�5

Switch Address

1 � 3 4 5 6 7 no. 1 0 1 1 1 1 0 61 0 1 1 1 1 1 0 6� 1 1 1 1 1 1 0 63 0 0 0 0 0 0 1 64 1 0 0 0 0 0 1 65 0 1 0 0 0 0 1 66 1 1 0 0 0 0 1 67 0 0 1 0 0 0 1 68 1 0 1 0 0 0 1 69 0 1 1 0 0 0 1 70 1 1 1 0 0 0 1 71 0 0 0 1 0 0 1 7� 1 0 0 1 0 0 1 73 0 1 0 1 0 0 1 74 1 1 0 1 0 0 1 75 0 0 1 1 0 0 1 76 1 0 1 1 0 0 1 77 0 1 1 1 0 0 1 78 1 1 1 1 0 0 1 79 0 0 0 0 1 0 1 80 1 0 0 0 1 0 1 81 0 1 0 0 1 0 1 8� 1 1 0 0 1 0 1 83 0 0 1 0 1 0 1 84 1 0 1 0 1 0 1 85 0 1 1 0 1 0 1 86 1 1 1 0 1 0 1 87 0 0 0 1 1 0 1 88 1 0 0 1 1 0 1 89 0 1 0 1 1 0 1 90

Inthetable“1”=ONand“0”=OFF

GatewayTheaddresscodeforgatewaysisprogrammedviathecontrolpanel.Thegatewayisfactory-setwithaddressNo.1�5.It will always be the gateway with address 125 which will be the master on the network.Remembertochangetheaddresses,ifthereareseveralgateways.Thissettingmustbechangedbeforethegatewayisconnectedtothedatacommunicationnetwork.ConnectacontrolpaneltypeAKA�1astheonlyunitonthegateway’sDANBUSSterminals,andmakethesetting.

1� InstallationGuide RC0XA40� © Danfoss 07/�006 DANBUSS

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