FUTABA GYD470 Manuale utente

WARNING

Failuretofollowthesesafetyprecautionsmayresultinsevereinjuryto

yourselfandothers.

Checkthatthereissuﬃcientbatterycapacity.

Do not operate the model and transmitter steeringwheel for

about 3-5 seconds after turning on the GYD470 (Whenshared

with the receiver).

• GYD470 initialization and neutral position reading. The GYD470 is initialized when the

power is turned on. The neutral position is also read at the same time. If initialization

ends normally, the operator is informed by two repetitive movements of the servo to

the left and right (a little).

Alwayscheckthedirectionofoperationofthegyro.

Donotstrikethegyrowithahardobject. Donotdropitonto

aconcretesurfaceorotherhardﬂoor.

• The sensor may become damaged during strong impacts.

Donotusetrimsormixing.

• All corrections are made by the gyro. Therefore, if trimming and mixing, are turned on,

operation will be the same as deviating from the neutral position.

DonotusetheGYD470forapplicationsotherthanRCcars.

•This gyro is designed for RC cars only. Do not use it for other applications.

Analogservoscannotbeused.

•The use of analog servos may cause servo trouble.

Donotplacegyronearheatingequipment(engine,motor,

ESC,battery,servo,etc.).

• Always allow the gyro to adjust to the surrounding environmental temperature before

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issues.

WhenusinganS-FHSSreceiver,atransmitterthatcanswitch

between"Digitalservomode"and"Analogservomode"must

beusedinanalogservomode.Theservothatconnectstothe

gyrousesadigitalservo.

• It may not work in S-FHSS receiver + Digital servo mode.

Connecting the GYD470 S.BUS Connecting the GYD470

Mounting to Chassis

Steering servo

SR mode

RateGyroforRCDriftCars

INSTRUCTION MANUAL

OnlyforFutabadigitalservo

ForRCmodels

Gyro

Includedsponge

sensortape

Degrease

andstick Horizontalplane

Flatsurfaceofthechassiswherethesensor

tapestickseasily.Mountthegyrolevelso

thatitisnottiltedrelativetothechassis.

Usetheincludeddouble-sidedspongetapetoﬁrmlyat-

tachthegyroperpendiculartothecontrolaxis,ataposi-

tionwherethereisaslittlevibrationaspossible.Makethe

Gyromountingposition

Thedirectionofrotationfixedbythegyrocanbeany

directionwithin360° relativetothesteeringaxiscontrolled

bythegyro.

•No part of this manual may be reproduced in any form without prior permissi o n . 

•The contents of this manual are subject to change without prior notice.

•Futaba is not liable for any potential damage (accidental or otherwise) that may oc-

cur after installation.

Before using your new gyro, please read this manual thoroughly and

use the gyro properly and safely. After reading this manual, store it in

a safe place.

● DedicatedRCDriftcarsetting

Vehicle straight-line and cornering performance can be increased without

taking into account the effect of the road surface, etc.

● Remotegainfunctionandmodeswitchingfunction

You can adjust gain from the transmitter (3 or more CH) by using the

remote gain function. Gain can also be adjusted with the trimmer on the

GYD470. The mode switching function allows AVCS/NORMAL gyro mode

switching.

● Integrated,compact,andlightweight

Compact size（20.7x20.7x11mm）and light weight（3.7g）realized by

high density mounting technology.

● Easysetup

The GYD470 can be used immediately with minimum setup.

● SupportingtheS.BUS/S.BUS2connection

Only one wire connection to the receiver can operate the GYD470.

● OnlyforFutabadigitalservo

GYD470Ratings:

(Integrated sensor type rate gyro)

• Gyro sensor: MEMS vibrating structure gyro

• Operating voltage: DC4.0 V to 8.4 V

• Current drain: 30 mA (excluding a servo)

• Operating temperature range: -10ºC to +45ºC

• Dimensions: 20.7 x 20.7 x 11.0 mm (0.82 x 0.82 x 0.43 in) (except protrusion)

• Weight: 3.7 g (0.13 oz)

• Functions: Sensitivity trimmer. LED monitor. Servo selection (SR mode

ON/OFF). S.BUS/S.BUS2 connection.

Features of GYD470

Functions

●Trimmer

（Limit/Gain）●LED

●Servo selection switch

(SR mode ON/OFF) ●Port1（Steering input/

S.BUS input）

●Port2（Gain input）

●Port3（Steering servo output）

●Gyro direction

Switch

Set Contents

The following items are supplied with the GYD470:

Miniscrewdriver

Sensortape

Extensioncord

Nylonstrap

GYD470

1M23N38414 Thank you for purchasing the

GYD470 RC cars gyro. Compact and

lightweight, the GYD470 is designed

to control steering for RC Drift cars. If

the transmitter has 3 or more channels

(capable of 3CH adjustment) the gyro

sensitivity can be adjusted from the

transmitter. Features include simple set-

up and S.BUS/S.BUS2 connectivity.

S.BUS/S.BUS2port

GYD470 GYD470

S.BUSReceiver

Steeringservo Steeringservo

SteeringCH1

GyrogainCH3

Receiver

GyrogainCH(Receiver)←connect→Port2(GYD470)

Remotegaineﬀective.Trimmer(GYD470)becomesLIMIT.

GyrogainCH(Receiver)←Itdoesnotconnect→Port2(GYD470)

Remotegainisinvalid.Trimmer(GYD470)becomesGAIN.

S.BUSCH

Steering---1CH

Gyrogain---3CH

Extensioncord

InS.BUS

connection,the

port2isnot

connected.

Remotegainisstill

eﬀective.

wiringlooseandbundleitwiththeincludednylonstrapso

thatitwillnotinterferewiththerod.

Linktheservoinaccordancewiththekitinstruction

manual.Adjustthelinkagerodsothatthetrimamountis

assmallaspossible.Adjustthelinkagesothattheleftand

rightmovementanglesareequal.EPA(ATV)shouldbe

100%.WhenusingS.BUSservo,initializeaparameter.

Maketheservooperatingrangeaswideaspossible.

MonitorLEDdisplay

State Color Move Reference

1.PowerON Orange 2blinks

2.Noservopulse/Error Red Slowblink

3.Signalinputfromreceiver Green Fastblink

4.Sensorinitialization Red/Green ON AVCS(Red)

Normal(Green)

5.Turn Red/Green Fastblink Right(Green)

Left(Red)

6.Neutraloﬀset Orange Slowblink Steeringoperation

7.Gainoﬀ −OFF

8.Switchoperation Green Oneblink Eachtimeofswitch

operation

9.Lowbattery Red Oneﬂash Lessthan3.8V

ItispossiblewhenusingtheS.BUSsettingcompatible

transmittertochangetheservoto"SRMode"andimprove

theservoresponse.Iftheservocan'tbechangedtoSR

mode,donotsettheTXtoSRmode.

Not compatible with UR mode

Futabareceiveronly

Adjustments

Adjustments.

Tuning Adjustment

S.BUS System

AVCS / NORMAL Modes

Setup before a run [ Remote gain use ]

Gain adjustments are carried out with a transmitter.

Follow this procedure when the port 2 of gyro and gain CH of the

receiver are connected. (or with S.BUS connection)

1Runthecarinthegyrooff(gyrogain0%)andadjust

thesteeringtrim(subtrim).

2Selecttheappropriatesettingforthesteeringservothat

youareusing.ServoselectionswitchofGYD470 should

bemovedto SRmodeON orOFF.

*Donot useanormaldigitalservointheSRservomode(ON).The

servomaybe damaged.Useanormaldigital servoin theSR servo

mode(OFF).

3Turnonyourtransmitter'spower.Setthegyro

sensitivitytoabout70%attheNORMALorAVCSside

inaccordancewiththetransmitterinstructionmanual. The

<GAINCH><AVCS/NORMALModes>graphofthenext

pageisreferredto.

*Make the gain tuning adjustment after running the car and noting

the behavior.

4ReceiverON → TheGYD470requires3-5secondsto

initializewhenthepoweristurnedon.Donotmove

thecaranddonotmovethesteeringwheelduringthis

initializationorthegyromaynotinitializeproperly.Once

theinitializationprocesshasbeencompletedthesteering

servowillmove(alittle)severaltimesindicatingthatthe

GYD470isnowreadyforuse.Iftheneutralhasshifted,LED

willblinkorange.Inthatcase,itreboots.

5Movethesteeringwheeltotheleftandrightand

performadjustmentatthelimittrimmersothatthe

servooperationismaximumwithoutanybindofthe

controllinkageormechanicallimits.

Actually drive the vehicle and adjust the gyro sensitivity.

1Alwaysre-trimwiththegyrogainat0.

2InthisstateturnthereceiverpowerOFF → ON.The

neutralpositionismemorized.Steeringtrimmustnot

beperformedwhilethecarisrunning.

Thegyro has2 operatingmodes: NORMALmodeandAVCS

mode.IntheAVCSmode,gyrocontrolisﬁrmer.Thecarwill

holdheadingviathedriverscommands.

InNORMALmodethegyrowilltrytocountersteer,butstill

allowthecartodriftregardlessofpreviousheading.

Becausethefeelofoperationisdiﬀerent,chooseyourfavorite

mode.

3CH(GAINCH)issetupwithreferencetothemanualofa

transmitter.NeutralpositionbecomesGAIN0%.Itisdivided

intoAVCSsideandNORMALside.CheckusingtheGYD470's

LED.

WhenPort2isnotusedforgain,andSBUS/SBUS2isnot

used,thetrimmerworksasthegainadjustmentshown

below.

Incaseoftherightslide

⇒Leftsteeringcontrol

Incaseoftherightslide

⇒Rightsteeringcontrol

AVCS NORMAL

Thegyrowilltrytoget

thecartogripinthe

driverssteering

direction.

Thegyrowilltryto

countersteerregardless

oftheangleofthecar.

-55%

+55%

50%

100%

+110%

-110%

Endpointrate

Gain

NORMALside（LED:GREEN）

AVCSside（LED:RED）

Unlikeconventionalradiocontrolsystems,theS.BUSsystem

sendsoperating signalsfromthereceiverto agyroorother

S.BUScompatibledevicebydatacommunication.TheS.BUS

compatibledevice executesonlythosepartsof thisdatafor

thechannelssetbyitself.Forthisreasonmultipleservoscan

beconnectedtothesamesignalline.

TheS.BUSsystemrequiresadedicatedS.BUSreceiverand

S.BUSservo(gyro,etc.).

Ifthecaristurnedtotheleft

byhand → steeringgoesout

ontheright

＜LimitTrimmerAdjustments＞

Itadjuststothe

maximumoperationof

linkage.

Steeringwheelto

full

D/R(UPside)

Limittrimmer

Adjustments

Gyrosensitivityzero---LEDOFF

AVCSside---LEDred

NORMALside---LEDgreen

6Usingthegyrodirectionswitch,adjustthegyro

operatingdirection sothat steeringmovesalltheway

totherightwhenthecaristurnedtotheleft.Besuretoset

gyrooperatingdirectioncorrectlyorthecarwillnotrun.

[ When remote gain function is off ]

Adjust the gyro sensitivity with the GYD470 trimmer.

If the port 2 of gyro is not connected, remote gain is automatically

set to being inhibited. (S.BUS connection is excluded)

In this case, the limit trimmer is automatically changed to gyro

sensitivity setting trimmer.

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and left.)

1Selecttheappropriatesettingforthesteeringservothat

youareusing.ServoselectionswitchofGYD470 should

bemovedto SRmode ON orOFF.

*DonotuseanormaldigitalservointheSRservomode(ON).Theservo

maybedamaged. Useanormal digitalservoin theSR servomode

(OFF).

2Gaintrimmerhalfwaytotheleft:NOMAL(green)or

right:AVCS(red)fromthe70%point.

3ReceiverON → TheGYD470requires3-5secondsto

initializewhenthepoweristurnedon.Donotmove

thecaranddonotmovethesteeringwheelduringthis

initializationorthegyromaynotinitializeproperly.Once

theinitializationprocesshasbeencompletedthesteering

servowillmove(alittle)severaltimesindicatingthatthe

GYD470isnowreadyforuse.Iftheneutralhasshifted,LED

willblinkorange.Inthatcase,itreboots.

4Usingthegyrodirectionswitch,adjustthegyro's

operatingdirection sothat steeringmovesalltheway

totherightwhenthecaristurnedtotheleft.Besuretoset

theoperatingdirectioncorrectlyorthecarwillnotrun.

● Trimmeroperation

*Sincethisgyroisalsoverysmall,theadjustmenttrimmerisalsoasmall

part.Alwaysoperatethetrimmerwiththeaccessoryminiscrewdriver

andwithoutapplyingunreasonableforce.

*Limit is symmetricalfrom the neutral

position. Only proceed with the limit

adjustment after completing the trim

adjustment.

Gyro Sensitivity and mode Switching

Whentheremotegainfunctionisnotused,theclockwise

directionfromthecenterofthesensitivitysettingtrimmer

isthe AVCSmode andthe counterclockwisedirectionisthe

NORMALmode.Atthecenterpositionthesensitivitybe-

comeszeroandwhenthetrimmeristurnedfullytotheleftor

right,thesensitivitybecomes100%.

The sensitivitysettingcriteriabyendpointisshownin the

ﬁgurebelow.

＜GAIN CH ＞

Gyrosensitivityzero---LEDOFF

AVCSside---LEDred

NORMALside---LEDgreen

Whentheremotegainfunctionisused,NORMALandAVCS

modeswitchingisperformedinaccordancewiththedirec-

tionofoperationofthetransmitter'sremotegainchannel.

Atthe+rateside,theAVCSmodeisselectedandatthe‒

rateside, the NORMALmodeisselected.Thesensitivityis

changedbyadjustingtheendpointrate.

NOMAL70%

AVCS70% AVCS100%

NORM 50% NORM 100%

AVCS50%

FUTABA CORPORATION

Hobby Radio Control Business Center Sales & Marketing Department

<DEXWVXND&KRVHLPXUD&KRVHLJXQ&KLEDNHQ-DSDQ

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