SPECIAL FEATURES
REPAIR PROCEDURES / LIMITED WARRANTY
TROUBLESHOOTING GUIDE
MODE PROGRAMMING
Dual ADPCmax Power Profiles: anabsolutenovelty,independentadjustmentof„Feel“and„Boost“tomake
theSXX StockSpecuniversalforallracingclasses,motors,cellvoltagesandpersonaldriverpreferences!
„Feel“: the„Feel“adjustmentallowsyoutosetthefeelofthespeed-controltoyourlikes,it‘sacombinationof
currentlimiter,throttlemapandother(secret)factorswhichthesoftwarealtersdependingonthestatusofthecar
(start,acceleration,fullspeed).Higherprofilesresultinmoreaggressivethrottleresponse,sonormallyforapplica-
tionsonslipperysurfaceslower„Feel“settingsarestronglyrecommendedwhichgiveyoubestcarcontrol.
„Boost“: the„Boost“adjustmentisLRP‘sactivemotortimingsystem,dependingonmanydifferentfactors(cur-
rent,throttleposition,RPM,etc)thesoftwarecalculatestheperfectcommutationandtiming.Asaruleofthumb,
slowermotorsrequirehigher„Boost“settingsthenfastermotors!
Caution:correctprofiles,especiallyforMode.3,heavilydependonmotortypeandmechanicalmotortiming.Soif
youchangetoanothermotortypeoranotherwindalwaysstartwithalowsettingonMode.3andmonitorthemotor
temperaturefrequentlyduringtherun!
Thisnew,LRPexclusive,motor-timingalgorithmresultsinupto40%higherpoweroutputfromthemotor,therefore
itisimportantyoutakeyourtimeandstartwithlowprofileswithanymotorforastart!
Toohigh„Boost“valuesincreasemotortemperatureexcessivelyandintheworstcasemaydamageyourmotor,
makesureyoufindthebestperformancebyincreasingvaluesstepbystepcarefully!
Advise: ifvalue#0ischoosenforMode.3theblueLEDwillflashinneutralpositioninnormaloperationtoindicate
thatentiretimingadvancementisdisabledcompletely!
Please visit download area at www.LRP.cc for „Boost“ factory recommendations for all applications!
TwinBEC: atrueBECrevolution!Constant6V/3Aoutputwithinputvoltagesfrom3.0to7.4V,noneedforarecei-
verbatteryorboostercircuitevenwith1SLiPoastheSXX StockSpec usesauniqueinternaldesignusingbuck/
boosttechnologyforBECtopowerreceiverandservoaswell!
ACS2 (AutoCell System 2):LRP’sexclusiveACS2ensuresthatallbatteries(LiPo/NiMH/LiFePo)canbeused
safelywithoutaccidentiallydeep-dischargingofthecells.Incaseofashutdown,whencellvotagehasreachedset
cut-offvoltage,themotorfunctionwillbedisabledandtheLED‘swillindicatethatashutdownhasoccureddueto
undervoltage(seechartbelowforerrorcode‘s!).
Caution:WorksDefaultsettinghascut-offdisabled!
Internal-Temp-Check System 3: allowsyoutoread-outthemaximuminternaltemperaturethatthespeedo
andmotorhavereachedduringtherun.Youcanconvienentlyread-outthetemperaturebackinthepitssinceit
remainsstoreduntilyouturnitonthenexttimeregularly(whichwillresetthememory).Thisfeatureallowsyouto
accuratelycheckifallisrunningwellorifyou‘reclosetoshutdownalready.
How to read-out the temperature:
switchat„OFF“position.
keepMODEbuttonpressedwhileyouturnswitchto„ON“(thenreleasebutton).
atfirstspeed-controltemperaturewillbeindicated.
SETLEDwillstarttoflashblue(MODELED‘sareoff)....
countthenumberofflashes.Thehigherthenumber,thehotterthespeedoran(shutdownoccursat10flashes).
tochangetomotortemperatureread-out,pressMODEbuttononemoretime.
SETLEDwillstarttoflashblue(MODELED‘sareoff)again,formotortheLED‘sontimewillbeshorter.
countthenumberofflashes.Thehigherthenumber,thehotterthemotorran(shutdownoccursat10flashes).
everyflashbelow10equalsto5°Ctemperaturedecrease.
Temperature chart (speed-control and motor temperature):
Caution:motortemperatureread-outonlyworksifmotorhasabuilt-inNTCtemperaturesensor!
X-Brake: thebestgotperfectedfurther!Asuperlinearfeelingwithanevenstrongerpushbrakeand10finesteps
foralmostinfiniteadjustmentsofautobrake!
Team advise: Agoodstartingpointforthebrakesettingonyourradiois80%forallclasses.Makesureyoudothe
radio-setupwithallsettingsontheradioon100%!
Multi-Protection System 3: newandimprovedprotectionsystem„MPS3“whichalsoinformsyouthecause
oftheshutdownwithaspecialLEDflashingsequence.YoucanindicatethatashutdownoccuredwhenblueSET
LEDflashesveryfastandthe„errorcode“(=causeforshutdown)isindicatedbytheMODELED‘sasexplained
intablebelow.
Error Code LED flashing sequences:
Changing Mode settings without the transmitter: Atraceeventsyouusuallydonothaveaccesstoyour
transmitter,butnevermindsinceyoucansimplydisconnectthereceiverleadfromthereceiverandchangethe
MODEsettingsasdescribedat„ModeProgramming“.
Works-Default-Settings: AllLRPspeed-controlscomefactory-adjusted(defaultsare grey-shaded above).
If youloosetrackofthemodes,youcanrestore theworksdefaultsettings.Withthe transmitter switched on,
holdtheSETbuttonpressedwhileyouswitchonthespeed-control.ThisreturnstheunittotheLRPworksdefault
settings.
Power Capacitor: Neverrunwithoutapower-capacitor!Itoffersincreasedpunchandadditionalprotection,it
mustbeconnectedtoBAT+andBAT-solderpadswithshortestpossiblewires.Thereareoptionalpowercapaci-
torsavailable,see„Spare-&optionalparts“.
C³ Technology (Copper Core Cooling):therevolutionaryC³Technologyforlowestrunningtemperatures,a
specialcoppercorebondsthebottomsidefetstotheheatsinkforevencoolingofallfet‘swhichresultsinhigher
powertowardstheendoftherunandalowermotorlimit.
Pure Brushless Forward/Brake Design: uncompromisingandoutstandingperformancefortoplevelcom-
petitionwasthetargetfortheSXX StockSpec!ThereforetheLRPengineeringteamdevelopedapureforward/brake
brushlesscompetitionspeed-control.Thereisnoreversefunctionandnobrushedoperation.
SYMPTOM CAUSE REMEDY
Servoisworking,nomotor
function Speedopluggedinincorrectly PlugspeedotoreceiverasCh.2
MultiprotectionSystemactivated Checksettingsforyourapplication
Wiringproblem Checkwiresandconnectors
Sensorwiremissing/defective Install/replacesensorwire
Motordefective Replacemotor
Speedodefective Sendinproductforrepair
Noservoandnomotor
function Speedoconnectedtoreceiverwithwrongpolarity Connectspeedowithcorrectpolarity
Wiringproblem Checkwiresandconnectors
Batterydefective Replacewithdifferentbatterypack
Crystal,receiverortransmitterdefective Replacecomponentsonebyone
Speedodefective Sendinproductforrepair
Motorstutterswhile
accelerating Sensorwiredefective Replacesensorwire
Motororsensorboardinmotordefective Replacesensorboardormotor
Radiointerference Changelocationofcomponents
Powercapacitordamaged Replacepowercapacitor
Speedodefective Sendinproductforrepair
Motorrunsinreversewhen
acceleratingforwardonradio Modelwithreversedgearbox! Cannotuseasensoredbrushlesssystem!
Insufficientperformance.
E.g.poorpower,topspeed
orbrake
WrongGearratio Adjustgearratio
FalsesettingsonADPCDualmax„Boost“ AdjustsettingsunderADPCDualmax„Boost“
Transmittersettingschangedafterset-up Repeatset-upprocedure
PowerCapacitordamaged ReplacePowerCapacitor
Motororsensor-boardinmotordefective Replacesensor-boardormotor
Speed-controldefective Sendinproductforrepair
Speed-controlswitchesoff
frequently WrongsettinginACS2(Mode.1)! ChangevalueofACS2(Mode.1)accordingly
Modelusedtoooftenwithoutcool-downperiods Letcooldownaftereveryrun
Motorstrongerthanmotorlimitorinputvoltage
toohigh Useonlymotorsandbatterieswhicharewithin
thespecificationsofthespeed-control
Stuckdrivetrainorball-bearing Maintainmodel
Motordefective Replacemotor
Motorneverstops,runsat
constantslowspeed Transmittersettingschangedafterset-up Repeatset-upprocedure
Humidity/waterinspeedo Immediatelyunpluganddryspeedo
Motororsensorboardinmotordefective Replacesensorboardormotor
Radiointerference Receiverorantennatooclosetopowerwires,
motor,batteryorspeedo.Receiveraerialtooshort
orcoiledup
See„InstallationTips“and„Installation“
Receiverdefective,toosensitive;
Transmitterdefective,transmitteroutputpower
toolow,servoproblem
Replacecomponentsonebyone
Onlyuseoriginalmanufacturerscrystals
Poorbatteryconnection Checkplugsandconnectingwires
Transmitterbatteriesempty Replace/rechargetransmitterbatteries
#1 #2 #3 #4 #5 #6 #7 #8 #9 #10
>-45°C
>-81°F
-40°C
-72°F
-35°C
-63°F
-30°C
-54°F
-25°C
-45°F
-20°C
-36°F
-15°C
-27°F
-10°C
-18°F
-5°C
-9°F
Shut-
down
AllproductsfromLRPelectronicGmbH(hereinaftercalled“LRP”)aremanufacturedaccordingtothehighestquality
standards.LRPguaranteesthisproducttobefreefromdefectsinmaterialsorworkmanshipfor90days(non-european
countrisonly)fromtheoriginaldateofpurchaseverifiedbysalesreceipt.Thislimitedwarrantydoesn’tcoverdefects,
whicharearesultofmisuse,impropermaintenance,outsideinterferenceormechanicaldamage.
„Thisappliesamongotherthingson:
• Cutofforiginalpowerplugornotusingreversepolarityprotectedplugs
• Receiverwireand/orswitchwiredamaged
• Mechanicaldamageofthecase
• Humidity/Waterinsidethespeedcontrol
• Mechanicaldamageofelectronicalcomponents/PCB
• SolderedonthePCB(exceptonsolderpads)
• Connectedspeed-controlwithreversedpolarity“
Toeliminateallotherpossibilitiesorimproperhandling,firstcheckallothercomponentsinyourmodelandthetrouble
shootingguide,ifavailable,beforeyousendinthisproductforrepair.Ifproductsaresentinforrepair,whichdooperate
perfectly,wehavetochargeaservicefeeaccordingtoourpricelist.
Withsendinginthisproduct,thecustomerhastoadviseLRPiftheproductshouldberepairedineithercase.Ifthere
isneitherawarrantynorguaranteeclaim,theinspectionoftheproductandtherepairs,ifnecessary,ineithercase
Toeliminate allotherpossibilitiesorimproperhandling,first checkallothercomponentsinyourmodelandthe
troubleshootingguidebeforeyousendinthisproductforrepair.Ifproductsaresentinforrepair,whichdooperate
perfectly,wehavetochargeaservicefeeaccordingtoourpricelist.
AlwayscheckerrorbycheckingLEDerrorcodefirst,thisgivesyouagoodindicationweretosearch!
Error
Code
Mode
LED‘s
Set
LED Reason Possible Cause
#1 Yellow
Blue
(fast
flashing)
Speed-ControlThermalShutdown 1.toohighsettingsforADPCDualmaxpower-profiles?
2.toohighgearratio?
3.toolowmotorwindforapplication?
4.toohighmechanicalmotortiming?
#2 Red MotorThermalShutdown
#3 Yellow/Red
(alternate) BatteryLowVoltageCut-Off
1.batteryempty?
2.batterydamaged?
3.motortoostrongforbatterydischargecapability?
4.poorconnection(badconnector,badsolderingjoint)?
#4 Yellow/Red
(sametime) MotorFailure 1.sensorwiremissingordefective?
2.drivetrainstuck?
3.motordefective(lockedrotor,damagedsensor)?
TheSXX StockSpec features4modeswhichenableyoutoadjustit100%toYOURspecialrequirements.Thefactory
settingsareshowningreycolour.
MODE.1 (ACS2): allowsyoutoadjustthecut-offvoltagepreciselydependingonthebatterytypeyouuse:
MODE LED Remark #0 #1 #2 #3
Yellow Cut-OffVoltage disabled 3.2V 4.4V 6.4V
usefor 1SLiPo 2SLiFePo 2SLiPo
Caution:themostcommonreasonfor„unexpected“shutdownisusingthewrongvalueinthismode!
MODE.2 (Dual ADPCmax - „Feel“): allowsyoutoadjusttheSXX StockSpecthrottlefeeltoyourlikes.Eitheryou
runOnRoadorOffRoad,onslipperyorhigh-tractionsurfaces,wehaveincorporatedaprofileforyou!Highervalue
meansmoreaggressivethrottleresponse.
MODE.3 (Dual ADPCmax - „Boost“): the„Boost“adjustmentisLRP‘sactivemotortimingsystem,depending
onmanydifferentfactors(current,throttleposition,RPM,etc)thesoftwarecalculatestheperfectcommutation
andtiming.Asaruleofthumb,slowermotorsrequirehigher„Boost“settingsthenfastermotors!
Caution:toohigh„Boost“valuesincreasemotortemperatureexcessivelyandintheworstcasemaydamageyour
motor,makesureyoufindthebestperformancebyincreasingvaluesstepbystepcarefully!
Please visit download area at www.LRP.cc for „Boost“ factory recommendations for all applications!
MODE.4 (Automatic Brake):calledauto-ordrag-brake.Thisfunctionallowsyoutosetaslightbrakingaction
whichisappliedintheneutralrange.
• Howtogetinto„programmingthemodes“ PressMODEbuttonfor3ormoreseconds.
• Howtocheckthestoredvalues CountthenumberofflashesoftheblueSET-LED
(*=value1|**=value2|etc.).
• Howtochangethevalue PressSETbuttontoincreasevaluebyonestep.
• HowtogettothenextMode PressMODEbuttononce.
• Howtoleavetheprogrammingmode IfyouareinMODE.4,presstheMODEbuttononemore
time,whichwillalsostorethesettings!
Important:donotturntheswitchoffbeforeleavingMode4(byonemorepressofMODEbutton)asotherwiseyour
recentchangeswon‘tbestoredinthememoryoftheSXX StockSpec!
Tableofsettings,valuesandmodes:seebelow(grey-shadedvaluesshow„worksdefaultsettings“)
MODE LED Remark #1 #2 #3 #4 #5 #6 #7 #8 #9 #10
Red Response OOO OOO OO OOO OOOO OOO OOOO OOOOO
ThrottleMap smooth linear progressive aggressive
MODE LED #0 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10
Yellow/Red
(sametime) disabled Goingfromlowesttohighestautomaticbrakesetting
(value1=minimum/value10=maximum)
MODE LED #0 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10
Yellow/Red
(alternate) disabled Goingfrommildesttomostaggressivetimingprofile(value1=minimum/value10=maximum)
willbechargedwithafeeatthecustomersexpenseaccordingtoourpricelist.Aproofofpurchaseincludingdateof
purchaseneedstobeincluded.Otherwise,nowarrantycanbegranted.Forquickrepair-andreturnservice,addyour
addressanddetaileddescriptionofthemalfunction.
IfLRPnolongermanufacturesareturneddefectiveproductandweareunabletoserviceit,weshallprovideyouwith
aproductthathasatleastthesamevaluefromoneofthesuccessorseries.
Thespecificationslikeweight,sizeandothersshouldbeseenasguidevalues.Duetoongoingtechnicalimprovements,
whicharedoneintheinterestoftheproduct,LRPdoesnottakeanyresponsibilityfortheaccuracyofthesespecs.
LRP-Distributor-Service:
• Packageyourproductcarefullyandincludesalesreceiptanddetaileddescriptionofmalfunction.
• SendparceltoyournationalLRPdistributor.
• Distributorrepairsorexchangestheproduct.
• ShipmentbacktoyouusuallybyCOD(cashondelivery),butthisissubjecttoyournationalLRPdistributor‘sgeneral
policy.
