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  9. Yokomo MMS User manual

Yokomo MMS User manual

Displaycontents
Specifications
★Compactfoldingdisplay(protectsscreenduringtransport)
★Back-litLCDscreen(2rowdisplay)displaysvariousmotordatainaneasy-to-
readformat.Displayalsovisibleindarkareas.
★Adjustable motoroutputfrom0.00 〜 8.00V.Motor break-inscanbeperformed
atpreferredvoltage.
★MotorConditionMeter(bargraphdisplay)indicatesmotorcondition.
★RPMsensorincluded.Capableofmeasuring100 〜 99,900revolutions.
■ Application : DesignedforR/Celectricmotors,theMMSmeasuresmotorperformance,
checksmotorcondition,andperformsmotorbreak-in.
■ Powersource : DC12Vonly(12V 〜 13V)14Aandaboverecommended.
■
Compatiblemotors
: 7-Turnandabove(10.00Aminimum)
■ Motorouput : 0.00 〜 8.00V(Adjustable)
■ Display : Back-litLCDdisplay
(Displaysvoltage,currentdraw,rpmandcondition)
■ Casesize : 158 × 97 × 37mm(Excludesexternalparts)
■ Weight : 425g(Includingcables)
■ Additionalparts: RPMSensorandmotorcables
PartsDescriptions
Beforeoperating
Thedisplay/switch panel (*1)has aclearprotective filmtoprevent
scratchesduringshipment.Pleaseremovebeforeoperating.
Motor(Soldseparately) RPMSensor
(※ 1)
LCDDisplay
Powerinputcable(Red=Positive)
Powerinputcable(Black=Negative)
ThankyouforpurchasingtheYokomoMMSMotorTuner.
TheMMSfeaturesmanyfunctionstoprovideaquickandeasy
waytogaugemotorperformance.
Pleasereadtheinstructionsintheowner'smanualcarefully.
Motorvoltageadjuster
START/STOPButton
Motorcable(Black=negative)
Motorcable(Red=positive)
RPM(× 100)
Lessmovement of thebar
indicatesbetter motor
condition.
Conditiongraph
Inmost cases ahighernumber indicatesmorepower. A
motorinbadconditionmayalsocausehighercurrentdraw.
Currentdraw
Adjustablefrom0 〜 8V.
Voltageouput
YokomoMMSOwnersManual
2002.5.2
1Connectingthepowercables
Connectthepowercablestothepowersource
(astablepowersupplyofatleast12V14A).
Thedisplaywillturnonwhenpoweredon.
※ 
Althoughthe MMS featuresaninternal circuitfor
reverse-polarityprotection, please payspecial
attentiontothepolarityofthepowercables.
2ConnectingtheRPMsensor
Connectthe RPM sensorto the pluglocated
onthefrontpanel.
3ConnectingtheMotorPlug.
AttachtheMotorPlugtothemotorshaft.
※Makesure to attachthe Motor Plugcorrectlyto
preventitfromfallingoffwhilespinning.
4SwitchandOuputDialcheck
Make sure that the RPM field in the display
reads[STP] (indicates outputoff state). If
theRPM field reads[000], press the'START/
STOP'button to switchit to [STP]. Turn the
OutputDial fully leftto turn downthe output
voltageto0V.
※Please make sureto set thedial to 0Vto prevent
themotor from suddenlyspinning when themotor
cablesareconnected.
5AttachingtheMotorCables
AttachtheMotorCablestothemotor.
※Securelyattachtheclips.
※Makesurethatthepolarityiscorrectwhenconnecting
theclipstopreventdamagetothemotor.Connecting
theclipsinreversemaycausetheinternalprotection
circuittocutoffpower.
OperatingInstructions
6Securingthemotor
Pleaseholdthemotortightly.
※Themotorwillexertagoodamountofrotatingforce
whenspinning.  Pleasemake sure tohold onto the
motortightly.
※Themotorwillbuildupheatwhenspinning,andmay
getextremelyhot.
7START&STOP
Pressthe 'START/STOP' buttonand turn the
dialto the right. Once themotor begins to
spin,adjust the dialto the desiredvoltage.
Themotor's current drawand condition willbe
displayed.
Pressingthe 'START/STOP'buttononce more
willcut power tothe motor andthe motor will
stopspinning.
8Checkingmotorcondition
TheConditionGraphindicatestheconditionof
themotor.
Arapidly fluctuating bargraph indicates a
motorin bad condition. Ifthegraph isstable
andshows little movement,the motor isin
goodcondition.
9MeasuringRPM
Positionthe RPM Sensorabout 5mm away
fromtheMotorPlug.TheRPMwillbedisplayed
onthe screen. Multiply the displayedRPM
numberby100toobtaintheactualRPM.
※If the RPMis not displayedon the screen,slightly
changethe position ofthe sensor togeta better
readingfromtheplug.
Black=Negative
Red=Positive
Black=Negative
Red=Positive
Bad
Good
Changethepositionslightly
About5mm

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