2-Wire System Owner’s Manual - SPRINKLER TALK … System Owner’s Manual 1.1 System Components SLM48DM 48-zone 2-wire decoder module SLDEC1 Single-zone decoder SLDEC2 Two-zone decoder

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2-Wire SystemOwner’s Manual

™

®

STATUS

ZONE

PGM

SELECTMODE

RUN

PROGRAMZONE

MASTER VALVEPOWER 1

R B2

R B3

R B

SLM48DM 2-Wire Module

PROGRAMPORT

R B

SLM48DM 48-zone2-wire decoder module

2-Wire System Owner’s Manual ®™

STATUS

ZONE

PGM

SELECTMODE

RUN

PROGRAMZONE

MASTER VALVEPOWER 1

R B2

R B3

R B

SLM48DM 2-Wire Module

PROGRAMPORT

R B

Master valve 2-wire path terminalsR=Red wireB=Black wirePower from

“Hot” post

Switchesbetweenprogram andrun modes

DecoderProgrammingPorts

Programstatus light(green=success,red=error)

Programselectedzone numberto connecteddecoder/clear errors

Zone numberup/down

SLM48DM 48-zone2-wire decoder module

Top light=program modeBottom light=run mode

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Contents1.1SystemComponents............................................................. 3

1.2HowItWorks...................................................................... 3

1.3InstallingtheSLM48DM2-WireDecoderModule.................... 4

1.4ProgrammingtheDecoders................................................... 4

1.5PlanningYour2-WireLayout................................................. 6

1.6LightningProtection.............................................................. 8

1.7Troubleshooting..................................................................11

1.8SpecialSystemFeatures..................................................... 12

1.9ElectricalSpecifications...................................................... 12

2-Wire System Owner’s Manual® ™

1.1 System ComponentsSLM48DM 48-zone2-wiredecodermodule

SLDEC1 Single-zonedecoder

SLDEC2 Two-zonedecoder

SLDEC4 Four-zonedecoder

SLGDT Lightningarrestorforsurgeprotection

SLCAM Clamp-onAmpMeter

SLCONN SpecialtyWireConnector

SLWIRE 2-conductor,jacketedUL/UFapprovedfordirectburial

1.2 How it WorksAdecoderisinstalledateachvalveboxtoactivatethevalves.EachdecoderhasauniqueaddresswhichidentifiesittotheWeathermaticSLM48DM2-wireprogrammingmoduleinstalledinanySL1600Smar-tLine®controller.TheSLM48DM2-wiredecodermodulebroadcastsacommandtoactivateonacertainaddress.Allthedecodersonthe2-wiresystem“decode”themessagebutonlytheappropriatedecoderrespondsandturnstheattachedvalveonoroff.Thedecoderrespondsbacktothedecodermodulewithastatusmessage.

TheadvantagesofaSmartWire™systemincludecostsavingsfromreductionincopperwireusageandcorrespondingtrenching,simplicityofwiringandtroubleshootingandeaseofexpansionwhenadditionalzonesareneeded.WeathermaticSmartWire™2-Wireallowsforconnectionofupto3separate2-wirepathstosimplifyinstallationonlargerprojects.SmartWire™isamemberoftheSmartLine®familyofwatermanagementproductsofferingautomated,on-sitewatermanage-ment.

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1.3 Installing the SLM48DM 2-Wire Decoder ModuleTheSLM48DM2-WireDecoderModulepermitsuseofanySL1600controllerfor2-wireinstallation.TheSL1600willdisplay48program-mablezoneswhentheSLM48DMisinstalled.Youcannotexceedatotalof48zones.

• Step1:TurnoffthepowertotheSmartLine®Controller.

• Step2:RemoveanypreviouslyinstalledzonemodulesandinserttheSLM48DMintothefarleftsidemoduleslotsinyourcontroller.

• Step3:Disconnectthetransformer’sgreengroundingwirefromtheterminalstripandcoverexposedwirewithawirenut.ThisstepisREQUIREDforSmartWirelightningprotectiontoworkproperly.

• Step4:ConnecttheprovidedpowerwirefromthePowerterminalontheSLM48DMtothecontrollerHotPost.

• Step5(optional):Ifyouareusingamastervalveorpumpstartrelay,anditismoreconvenienttowiretothesedevicesatalocationnotnearthecontroller,youcanconnectawire(provided)fromthemastervalveterminalontheSLM48DMtotheP/MVterminalontheSL1600controllerasshownintheillustration.Ifyouchoosethismethodofwiring,youwillneedtoprogramadecoderasZone99forusewiththepumpstartrelayormastervalve.IfitisconvenienttowirethedevicesdirectlytotheP/MVterminalonthecontroller,nowirelinkisneededbetweentheP/MVterminalandSLM48DM.

• Step6:Re-connectpowertothecontroller.Youarereadytoprogramyourdecoders.TheSLM48DMwillperforma“power-upselftest”atinitialpower-up.Thepower-upselftestwillconfirmtheintegrityoftheprocessorandwilltestthedisplayandallLEDstomakesuretheyareworking.Asuccessfultestwillterminatewithtwodashes“––”inthedisplay.


1.4 Programming the DecodersStep1:Mapoutyourvalveanddecoderloca-tions.SeeSection1.5.

Step2:ProgramallyourdecodersattheSmar-tLine®controller.Youwillneedtomarkeachdecoderwithapen(included)torecordthezonenumberassignedtoeachvalve.Notetheadjacentchartofvalvewirecolorsforeachdecoder:

• EachdecoderwillhaveREDandBLACKwires.Thesearethewiresthatwillconnecttothe2-wirepath.TheREDandBLACKarealsothewiresthatyouwillinsertintheProgrammingPortsontheSLM48DMtoprogramthedecoder.

• Thewiresontheotherendofeachdecoderareforconnectiontoyourvalves.

1-ValveDecoder:WHITEwireforthecommonandORANGEwireforvalveone.

2-ValveDecoder:CommonisWHITE;ORANGEisvalveoneandYELLOWisvalvetwo.

4-ValveDecoder:CommonisWHITE;ORANGEisvalveone;YELLOWisvalvetwo;GREENisvalvethreeandBLUEisvalvefour.

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red

black

red

black

red

black

1-Valve Decoder

2-Valve Decoder

4-Valve Decoder

orange (1)white (com)

yellow (2)orange (1)white (com)

blue (4)green (3)yellow (2)orange (1)white (com)

SLM48DM

SLDEC1 SLDEC2

SLDEC1

SmartLine® Controller

PowerWire(Provided)

P/MVWire(Provided)

Master Valve(Zone 99)

Hot Post

Green Ground Wire


Decoder Programming Steps:

• UsetheSLM48DMmodebuttontoselectthePGMprogrammingposition.

• InserttheREDandBLACKwiresonthedecoderintheProgrammingPortsontheSLM48DM(REDtoRED,BLACKtoBLACK).

• Useup/downarrowbuttonstoselectthezonenumbertobepro-grammed.

• PushProgramZonebuttontoselectthezoneshowinginthedisplaywindow.Note:Whenyouareprogrammingamulti-valvedecoder,thedisplaywillonlyshowthezonenumberforthefirstzonetobeassignedtothatdecoder.The remaining zones in the decoder are automatically assigned in sequential numerical order.

• AGREENstatuslightwillconfirmyourselection.

• Ifprogrammingisnotsuccessful,aREDstatuslightwillflashandanerrorcodewillbeshownonthedisplay.SeeTroubleshootingfordescriptionoferrorcodes.

• Markthezonenumberprogrammedonthedecoder.Note:Ifyouareusingamulti-valvedecoder,thedecoderwillrecordthezoneselectedintheorderpreviouslynotedforwirecolors.Forexample,ifyouareusingthe4-valvedecoder,thefirstzoneprogrammedwillbeOrange,thesecondYellowandsoon.Markthezonenumberonthedecoderforreferenceduringfieldinstallation.Youshouldalsomarkallzonenumbersonyourvalvelayoutplanforreferenceduringinstallationofthedecoders.

• Afterthedecodersareconnectedtothevalves,usetheModebuttonontheSLM48DMtoplacethedecoderprogrammerintheRunposi-tion.TheGreenstatuslightwillconfirmthatthesystemisreadyforoperation.IfthelightisRed,refertotheTroubleshootingguide.

• Ifyouareusingamastervalveonyoursystem,besuretoprogramitaszone99intheSLM48DMusinga1-valvedecoder.

SLM48DM RUN Mode

• TheprogramstatusLEDwillbeGREEN.

• Afteraprogramiscomplete,theSLM48DMdisplaywillshowanymal-functioningzones.Ifmorethanonezoneismalfunctioning,eachzonealongwiththecorrespondingerrorcodewillbedisplayedsequentiallyinarepeatingloop.TheProgramZonebuttonwillcleareacherrorcodeasitisdisplayed.SeeTroubleshootingforfaultcodedescriptions.

Programming Zones on your SmartLine® Controller

Afterthe2-wireinstallationanddecoderprogrammingiscomplete,youcanusetheSmartLine®controllertoestablishthewateringscheduleforallzones.ThenormalSL1600programmingconventionappliestotheSmartWire™system.

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1.5 Planning Your 2-Wire LayoutTheSmartWire™SLM48DM2-WireDecoderModuleallowsyoutohaveseveraloptionsincableroutingtodeterminethemostefficient2-wirelayoutforyourproject.Youcanconnectasmanyasthree2-wireruns.Maximumdecodertovalvedistanceis100feet(30.5m).

Each2-wireruncanbelaidoutinStraightRun,CompleteLoop,Star,orCombinationconfigurationsasshowntotheright.

Itissuggestedthatacontinuousloopbelaidoutaroundthesite.Thisusuallyfollowsthemainwaterlines.TheloopwillstartattheSmart-Line®controllerandcontinuearoundthesiteandthenreturntothecontroller.Thisprovidesthebestcommunicationandpowerpathforthesystem.Theloopprovidesaredundantpathforthepowerandsignalallowingthesystemtocontinueoperationiftheloopiscut.

Branchescancomeoffthemainloopandtheydonotneedtobeloopedbacktothemaintrunkline.Thesebranchescanbeotherloops,starsorsingledead-endlines.Thesystemwillworkwithmostwiringconfigurationsifthewirelengthrequirementsaremet.(Note:KeepBLACKtoBLACKandREDtoREDwhenwiringthecommunicationwire.)

Attaching Components

• TwistwirestogetherandsecurewiththeSLCONNmetalblockwireconnector.

• Encapsulatethemetalblockinsidethe3MDBRtype,greasefilledwaterproofconnector.Useofaconnectorisrequiredforallconnec-tionsbetweenthe2-wirepathandthedecoders.

• Usetheappropriateconnectorforthewiresizebeingused.

• Adheretoalllocalandnationalbuildingandelectricalcodes.

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StraightRun

DecoderDecoderDecoder

Decoder Last DecoderDecoderSLM48DM

CompleteLoop

SLM48DM

Water Source

Main Line

LastDecoder

Star

LastDecoder

LastDecoder

LastDecoder

LastDecoder

SLM48DM

Combination SLM48DM LastDecoder

Suggested Wire Details


Wiring Sizes

Straightlineconfiguration,i.e.wiredistancetothefurthestdecoder,noloop:

WireSize(Gauge) #18 #16 #14 #12

WireLength(ft) 1,000 2,000 4,000 6,000

WireLength(m) 305 610 1,210 1,829

Loopconfiguration,i.e.wiredistancetothefurthestdecoderintheloop:

WireSize(Gauge) #18 #16 #14 #12

WireLength(ft) 2,000 4,000 10,000 10,000

WireLength(m) 610 1,210 3,048 3,048

Maximumtotalwirepathlengthis10,000ft.(3,048m).

WeathermaticrecommendstheuseofSLWIREcablespecificallyde-signedforanirrigationcontrolsystemandcomplyingwiththefollowingspecifications:

• Conductorsmustbesoftdrawn,annealed,solidcopperconformingtoASTM33.

• Conductorinsulationmustbe4/64-inchthickpolyvinylchloride(PVC)conformingtoUL#493.

• Thetwoinsulatedconductorslaidinparallelandencasedina7

1 Station

To SLM48DM

SLCONNWaterproofwiring connector

CommonWire

2 Station

4 Station

CommonWire

SLCONNWaterproof

wiringconnectors

ExpansionCoil

Solenoid

Valve

FinishGrade

Valve Box

ExpansionCoil

2-Wire path

Decoder

GravelValve Box Detail


singleouterjacketof3/64-inchthick,high-density,sunlightresistantpolyethyleneconformingtoICEAS-61-402andNEMAWC5,hav-ingaminimumwallthicknessof.045-inch.

• Thetwoconductorsmustbecolor-coded:normallyoneconductorredandtheotherblack.Bothconductorsshallbethesamesize.

• Thefollowingmodelsmeettheabovespecificationsfordirectburialcable:WeathermaticSLWIRE12;WeathermaticSLWIRE14.

1.6 Lightning ProtectionWeathermaticSLGDTgasdischargetubelightningarrestorsmustbeusedonall2-wiregrids.TheSLGDTlightningarrestorattachesdirectlytothe2-wiresystemandhelpsdissipatestaticelectricitygeneratedbyanearbylightningstrike.WhileWeathermaticcomponentshavelightningarrestingfeatures,theSLGDTprovidesanextrameasureofprotection.

Features

• Protectsthe2-wiresystemfromexcessivestaticchargescreatedbyalightningstrike.

• Sealedandimpervioustomoisture,salts,fertilizersandmildchemicals.Canbeburieddirectlyinthesoil.

• Shockresistant

• Freeze/heatresistant(-20°to60°C)

• Noelectricalcontactwiththesoil

• EachLightningArrestorprotectsa300footradius

Electrical Specifications

• Requiresnopowerfromthe2-wiresystem

• CanonlybeconnectedtoSmartWire™2-wiresystems

Procedures for Installation

• ConnecttheREDandBLACKleadwirestothe2-wiresystemREDandBLACKwires.

• AttachtheGREENgroundwiretoEarthGround(GroundingRequire-mentsbelow)

• UseonlyDBYorDBR3MTypewaterproofconnectorsencapsulatingatwistedwireconnectioninsideametalblock(SLCONNincluded).

• Formaximumprotection,placeanSLGDTevery600feetalongthe2-wiresystem.(Example1ingraphicabove.)

• OneSLGDTshouldbewithin25ftofthehostSmartLine®controller.(Example2ingraphicabove.)

• Asinglestublinemustnotexceed50feetwithoutanSLGDTlightningarrestor.(Example3ingraphicabove.)

• AnSLGDTlightningarrestormustalsobeplacedattheendofthe2-wirerunthatisthemaximumdistancefromtheSmartLine®controller,oriflooped,atthepointofmaximumdistancefromtheSmartLine®controller.(Example4ingraphicabove.)

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SmartLine®SL1600ControllerwithSLM48DM

Decoder

Lightning Arrestor2-Wire path

600’ Max

1

3

4

1

2600’ Max

50’ Max

SLGDT Lightning Arrestor


Grounding Requirements

• TheGREENgroundwiremustbeattachedtoa#8solidbarecopperwireusingtheincludedSLCONNwireconnector.Connectthebaregroundwiretoagroundingcircuitwith12Ohmsorlessresistancetoearthground,measuredwithagroundresistancemeterorMegger.

• Agroundingcircuitiscomprisedof4majorcomponents: o GroundRod(s)and/orPlate(s). o GroundConductor. o ExothermicorCadmiumWeldconnections. o Soiland/orGroundEnhancementMaterials.• GroundRods/Platesmustbeinstalledina6”min.valvebox,6”

belowgradeorbelowfrostline,locatedwithinanirrigatedzonetomaintainsoilmoistureandmaximumgroundperformance.

• GroundRodsshallbeULlisted“copperclad”,5/8”minimumdiameter,8’oflength,andmustmeettherequirementsofNECarticle250-52(c).

• GroundPlatesshallbeacopperalloyspecificallyintendedforgrounding,withaminimumthicknessof0.060”.Eachplateshallexposeaminimumof5squarefeetofsurfaceareatocontactthesoil,andmeettherequirementsofNECarticle250-52(d).

• GroundingConductorshallbeasolid,barecopperwireorstrapusedtoconnectthegreengroundwiretothegroundrodorplate,sizedappropriatelytoachievespecifiedresistance.

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SLCONN

2-Wire Path

6" Valve Box

SLGDT

8' CopperClad GroundRod

CADWELD

#8 AWG BareCopper Wire

GroundDetail#1:SLGDTwithsinglegroundrod

8' Minimum

2-Wire path

CADWELD

#8 AWG BareCopper

Wire

GroundDetail#2:SLGDTwithTriangularGrid


• ExothermicorCadmiumWeldproductssuchasCADWELDOneShot®,shallbeusedtoconnectthe#8AWGbarecoppergroundconductortothegroundrodorplate.

• GroundEnhancementMaterialssuchasPowerset®,PowerFill®,andGEM®shallbeusedasrequiredtoachievespecifiedresistancetoearthground.

• Localsoilandsiteconditionswilldictatewhatextentofgroundingmeasureswillberequired.Generallythereare3soiltypesthateachrequiredifferentmethodsandequipmenttoachievethe12Ohmminimumresistancetoground:o Claysoils:Asinglegroundrodistypicallysufficient,locatedinan

irrigatedzone,withCADWELDconnectionsandnosoilamend-ments.Somesitesrequirea6”diameterholetobeauguredandbackfilledwithGroundEnhancementMaterials.

o LoamSoils:Typicallya3-groundrodgridisrequired,locatedinanirrigatedzone,withCADWELDconnections,6”auguredholesandGroundEnhancementMaterialasrequired.

o Sandysoils:Requirethemostextensivegroundcircuitswhichre-quirecombinationsofgroundrods,plates,CADWELDconnections

andgroundenhancementmaterials,locatedinanirrigatedzone.• Anycombinationoftheaboverecommendationsshouldbeconsid-

eredtoachieve12Ohmsorless.Long-termmaintenanceofanygroundsystemrequiresthatitbelocatedwithinanirrigatedorwet-tedzone.

• Refertowww.erico.comforacompletelineofgroundingequipmentandmaterials.

• Refertowww.asic.org/design_guides.htmforAmericanSocietyofIrrigationConsultants(ASIC)Guideline100-2002ForEarthGround-ingElectronicEquipmentinIrrigationSystems.

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CopperGround Plate

4"x96"x.0625"

#8 AWG SolidBare CopperWire (8' min.)

2-Wire path

Backfill with 3" min. GroundEnhancement Material (GEM)

GroundDetail#4:GroundRodandPlatewithGEM

Auger 6"dia. HoleBackfillwith GEM

SLCONN

2-Wirepath

SLGDT

GroundDetail#3:GroundRodwithGEM


Fault Code

Description Cause/Action

E1 Nodecoderfound

Cause:wiringerror,defectivedecoder,defectiveSLM48DMprogrammer.

Action:checkwiring,movedecoderclosertotheSLM48DM,replace.

E2 2-wireovercurrent

Cause:shortedwiring,wireconnectedtodirt,improperconnections,faileddecoder(shorted),valveconnecteddirectlyto2-wire.

Action:troubleshootwiringproblemsbyundoingthelastthingyoudidwhen itworkedbefore,and/orbybreakingthe2-wiresysteminhalftoisolatetheproblem,theninhalfagainasneeded.

E3 Opencircuitatsolenoid

Cause:thedecoderdetectsnosolenoidcur-rentwhenactivated:opensolenoid,poorconnections/wiringbetweendecoderandsolenoid,brokendecoder.

Action:checkdecodertosolenoidcon-nections,ohmsolenoid,replacesolenoid,replacedecoder.

E4 ShortCircuitatsolenoid

Cause:poorqualitywiringbetweenSLM-48DManddecoder(length,connections,highresistance,2-wireconnectedtodirt),failingdecoder,failingSLM48DM(giveserrorson“all”decoders),multipledecoderswithsameaddress.

Action:test2-wirequality(end-to-endresis-tance,resistancetoearthground,isolatedecoderinerror(testclosetodecodermanager),checkforduplicateaddresses.

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1.7 Troubleshooting

TheSLM48DMprovidesspecialkeycombinationsthatcanbeusedtoaccessspecialfeaturesandinformationthatcanbehelpfulduringthediagnosticprocess.Thesekeycombinationsareasfollows:

o PushUpArrowandDownArrowsimultaneouslytoviewthesoft-wareversionforyourSLM48DM.

o PushSelectModeandUpArrowbuttonssimultaneously,thenreleaseanduseUpandDownArrowstoselectazone,thenpushtheProgramZonebuttontoviewthesoftwareversionforthatparticulardecoder.

o HolddownSelectModebuttonfor5secondsandreleasetoinitiateaquicktestofallzones.Whenusingthetestmode,zoneaddresseswillbedisplayedwhilethezoneisoperating.Ifmultiplezonesareoperating,thezoneaddresseswillbedisplayedrotat-ingeverythreesecondsuntilthezoneisturnedoff.

o PushProgramZoneandUpArrowsimultaneouslytoviewtheSLM48DMtemperature.

IfanovercurrentorovertemperatureissensedbytheSLM48DMdecoderprogrammer,itwillcauseaFAULTmessagetoappearonthedisplayoftheSmartLine®controller.OpentheSmartLine®panelandchecktheFAULTonthedisplayoftheSLM48DMdecoderprogram-mer.AftertheFAULTisrepaired,presstheProgramZonebuttonontheSLM48DMtocleartheerrormessage.RefertothetablebelowforSLM48DMerrormessagesandcorrespondingcorrectiveactions.

• DecoderLocating:Tousea521locatortofindadecoder,thedecodershouldbeturnedonbythecontrollerandlocatedusingthe521wand(patentpending).

• ValveLocating:UsetheSL1600controllerAdvancedFunctionsmenuoptionsforthevalvelocatortofindthevalve.Thisfeaturewillcreatea“chatter”foraselectedvalveasaconvenientmethodoflocatingburiedvalves.UseNEXTandBACKbuttonstoscrolltothevalveyouwantto“chatter.”


®

1.8 Special System Features • Auniqueaddressisconfiguredineachdecoderduringtheconfigu-

rationprocess.

• Valvesareactuatedbyacommandfromthedecoder.

• Diagnosticfeatures—TheSLM48DMreportsfailingsolenoids.

• Ifasolenoidhasfailed,thedecodersensesanopencircuitand/orovercurrentconditionandshutsdownthevalve.

• EachdecoderwillshutdownifcommunicationislosttotheSLM-48DMdecodermoduleintheSmartLine®controller.

• Valvescanbelocatedupto100feetfromthedecoder.

• Decoderelectronicsarepottedinchemicalandwaterproofcom-poundsforimperviousprotectionfrommoistureanddirt.

1.9 Electrical Specifications • Inputvoltage24-28VACoverthe2-wiresystem.

• TheWeathermaticSLM48DMcansupportatotalof48valvesplusamastervalve.Amaximumof3valvesincludingmastervalveorpumprelaycanbeoperatedconcurrently.

• Noelectricalcontactwithsoil.

• Shockresistant.

• Freeze/heatresistant(-20°to60°C).

• Allconnectingwiresare14gaugecoatedPVCandmustbeinstalledwithindustrystandardwaterproofconnectorssuchasthe3MDBYorDBR.

Fault Code

Description Cause/Action

E5 DecoderCommunica-tionError

Cause:poorqualitywiringbetweenSLM-48DManddecoder(length,connections,highresistance,2-wireconnectedtodirt),failingdecoder,failingSLM48DM(giveserrorson“all”decoders),multipledecoderswithsameaddress.

Action:test2-wirequality(end-to-endresis-tance,resistancetoearthground,isolatedecoderinerror(testclosetodecodermanager),checkforduplicateaddresses.

E6 HighTem-peratureShutDown

Cause:hightemperature,excessive2-wiredutycycleattemperature.

Action:shadecontroller,replaceSLM48DM.

E7 DecoderProgrammingFailure

Cause:multipledecodersatonetime,de-coderremovedbeforeprogramcyclecom-pletes,faileddecoder,failingSLM48DM.

Action:retry,replacedecoder,replaceSLM48DM.

1.7 Troubleshooting Continued

12ADSL48DM

Documents

2-Wire System Owner’s Manual - SPRINKLER TALK … System Owner’s Manual 1.1 System Components SLM48DM 48-zone 2-wire decoder module SLDEC1 Single-zone decoder SLDEC2 Two-zone decoder