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• Boost
Theminimumcurrentappliedtotheinternalmotorwhenstartingtheservocanbeset.Sinceasmall
traveldoesnotstartthemotor,itessentiallyfeelslikethedeadbandwasexpanded.Themotorcanbe
immediatelystartedbyadjustingtheminimumcurrentwhichcanstartthemotor.
[Relationshipbetweenboostsetvalueandservooperation]
Small
ĺ
Motorreactstoaminutecurrentandoperationbecomessmooth.
Large
ĺ
Initialresponseimprovesandoutputtorqueincreases.However,ifthetorqueistoolarge,
operationwillbecomerough.
• Boost ON/OFF
OFF:ItistheboostONatthetimeoflow-speedoperation.(Inthecaseofusual)
ON:ItisalwaystheboostON.(Whenquickoperationishope)
• Damper
Thecharacteristicwhentheservoisstoppedcanbeset.
Whensmallerthanthestandardvalue,thecharacteristicbecomesanovershootcharacteristic.Ifthe
valueislargerthanthestandardvalue,thebrakeisappliedbeforethestopposition.
Especially,whenalargeloadisapplied,overshoot,etc.aresuppressedbyinertiaandhuntingmay
occur,dependingontheconditions.Ifhunting(phenomenawhichcausetheservotooscillate)occurs
eventhoughtheDeadBand,Stretcher,Boostandotherparametersaresuitable,adjustthisparameter
toavaluelargerthantheinitialvalue.
[Relationshipbetweendampersetvalueandservooperation]
Small
ĺ
Whenyouwanttoovershoot.Setsothathuntingdoesnotoccur.
Large
ĺ
Whenyouwanttooperatesothatbrakingisnotapplied.However,itwillfeelliketheservo
responsehasworsened.
(Note)Ifusedinthehuntingstate,notonlywillthecurrentconsumptionincrease,butthelifeofthe
servowillalsobeshortened.
• Stretcher
Theservoholdcharacteristiccanbeset.Thetorquewhichattemptstoreturntheservotothetarget
positionwhenthecurrentservopositionhasdeviatedfromthetargetpositioncanbeadjusted.
Thisisusedwhenstoppinghunting,etc.,buttheholdingcharacteristicchangesasshownbelow.
[Relationshipbetweenstretcherandservooperation]
Small
ĺ
Servoholdingforcebecomesweaker.
Large
ĺ
Servoholdingforcebecomesstronger.
(Note)Whenthisparameterislarge,thecurrentconsumptionincreases.
• Buzzer
Whenthepowersupplyofaservoispreviouslyturnedonatthetimeofapowersupplyinjection
withouttakingtransmitofatransmitter,thebuzzersoundofabout2.5Hzcontinuessoundingfroma
servo.
(Evenwhenthetransmitofatransmitteristakenoutpreviously,abuzzersoundsuntilthesignalofa
servoisoutputtednormally,butitisnotunusual.)
ThetransmitterhasbeenturnedOFFaheadofaservopowersupply →Thebuzzersoundofabout1.25
Hzcontinuessoundingasservopowersupplyendfailurealarm.
(
DonotinsertorremovetheservoconnectorwhilethereceiverpowerisON. Abuzzermay
soundbyincorrectrecognition.
)
*Buzzersoundisgeneratedbyvibratingthemotorofaservo.
Sincecurrentisconsumedandaservogeneratesheat,pleasedonotoperatethenumbermorethan
neededordonotcontinuesoundingabuzzerforalongtime.