Manual

ManualsBrandsFutaba ManualsMeasuring instrumentsGYA431

󾛽

WARNING

Failure to follow these safety precautions may result in severe injury

to yourself and others.

󾛹

Check that there is sufﬁcient transmitter battery capacity

for ﬂight.

•Determinetheoperatingtimeofthereceiver,gyro,andservobatteryintheadjust-

mentstageanddecidethenumberofightswithamargintospare.

󾛻

Analog servos cannot be used while in "digital servo"

mode.

•Analogservosmaybreakdownif"digitalservo"modeisselected.

󾛻

Do not operate the airplane and transmitter sticks for about

3-5 seconds after turning on the GYA431 (When shared

with the receiver).

•GYA431initializationandneutralpositionreading.TheGYA431isinitializedwhen

thepoweristurnedon.IntheAVCSmode,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.

󾛹

Always check the direction of operation of the gyro.

•Attemptingtoywiththeoperatingdirectionreversedisextremelydangerous.Al-

wayscheckyourgyro'sdirectiontoensuresafeights.

󾛻

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 in AVCS mode.

•IntheAVCSmode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po-

sition.

󾛻

Do not use the GYA431 for applications other than RC air-

planes.

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

Features of GYA431

Set Contents

Connection

S.BUS 3-axes Connection Example

S.BUS Connection

Mounting to the Chassis

Name and Function of Each Part

S.BUS connection makes the wiring extremely simple.

The GYA430 and GYA431 can be connected by one

3-way hub. The aileron, elevator, and rudder servos

are output from the gyro. Servos other than S.BUS ser-

vos can also be used. When an R6303SB is used the CH

switching mode is set to group 7. The normal group 7

CH outputs are CH3, CH11, and CH12. CH3 is the throt-

tle channel and CH11 and CH12 are spare channels.

The transmitter function settings are shown below. A

total of 9 channels are used with three axes gyro con-

trol.

Function

GYA431

(aileron)

GYA431

(elevator)

GYA430

(rudder)

Aileron CH1

Elevator CH2

Rudder CH4

2nd aileron CH6

2nd elevator CH9

Gyro sensitivity

(aileron)

CH5

Gyro sensitivity

(elevator)

CH7

Gyro sensitivity

(rudder)

CH8

● Dedicated airplane setting

Stabilizes ight, even with hard-to-control scale models.

● Compatible with aileron or elevator control

The GYA431 can be used even with airplanes with one servo each at the left

and right wings.(S.BUS only)

● Remote gain function

The remote gain function allows the sensitivity of the gyro to be adjusted from the

transmitter and the mode switching function allows AVCS/NORMAL gyro mode

switching. Also the gain can be adjusted by the trimmer on the GYA431.

● Integrated type, compact size and light weight

High-density mounting technology makes the GYA431 compact (20.5 x 20.5 x

11 mm) and lightweight (3.5 g).

● Easy setup

Basic settings let you be ight-ready in an instant.

● Supporting the S.BUS/S.BUS2 connection

Only one wire connection to the receiver can operate the GYA431.

Rate Gyro for Airplanes

Aileron or Elevator use

INSTRUCTION MANUAL

For RC models

● Trimmer (LIMIT/

GAIN)(Digital/

Analog servo

function)

● LED

● Aileron/Elevator

selector switch

● Port 1 (S.BUS input/

Aileron and elevator

input)

● Port 2 (2nd aileron or 2nd

elevator/Gyro sensitivity input)

● Port 3 (Aileron/Elevator servo output)

● Gyro direction

switch

Aileron(Elevator)

servo

※Only S.BUS is compatible with 1 servo.

Extension cord: (Black)

Accessory connector (Red)

GYA431

To port 3

To port 1

Aileron/Elevator CH

Gyro sensitivity CH

To port 2

Receiver

Gyro gain CH(Receiver)←connect→Port2(GYA431)

Remote gain eﬀective. Trimmer(GYA431) becomes LIMIT.

Gyro gain CH(Receiver)←It does not connect→Port2(GYA431)

Remote gain is invalid. Trimmer(GYA431) becomes GAIN.

S.BUS Receiver

Aileron (Elevator) servo

2nd servo

Extension cord: (Black)

GYA431

To port 3

To port 2

When there is 1

servo, port 2 is not

connected.

To port 1

S.BUS/S.BUS2 port

Controlled axis (roll axis)

90°

Gyro

Degrease and stick

Flat surface of the fuselage to which

double-sided tape easily sticks

(double-sided tape does not stick to balsa)

Sensor tape

Rudder servo

Elevator servo

GYA430(Sold separately)

GYA431

Aileron servo

S.BUS/S.BUS2 port

S.BUS Receiver

This is a three axes

connection example. The

rudder uses a GYA430 and

the receiver is an R6303SB.

＜ GYA431 aileron mounting ＞

The turning direction which xes the gyro can be any

direction up to 360° relative to the roll axis.

LIMIT

GAIN

Function Aileron mode Elevator mode

Aileron CH1

Elevator CH2

2nd aileron CH6

2nd elevator CH9

Gyro sensitivity (Aileron) CH5

Gyro sensitivity (Elevator) CH7

At S.BUS/S.BUS2 operation, the channels are fixed as shown in the

table below. Match the transmitter channels to these.

GYA431 Ratings:

(Integrated sensor type rate gyro)

•Gyrosensor:MEMSvibratingstructuregyro

•Operatingvoltage:DC4.0Vto8.4V

•Currentdrain:30mA(excludingaservo)

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

•Dimensions:20.5x20.5x11.0mm(exceptprotrusion)

•Weight:3.5g

•Functions:(1)Gyrosensitivitytrimmer,(2)MonitorLED,(3)Twoservos

compatibility,(4)S.BUS/S.BUS2compatibility,(5)Digital/analogservo

function

Monitor LED display

Operation status Color Display Remarks

1. No servo pulse /

sensor error

Red 4 ﬂash

2. Start of initialization

Green Fast blink

3. End of initialization

Red/Green/

Orange

Steady

light

Digital Analog

AVCS Red Red

Normal Orange Green

4. Turn

Red/Green Fast blink

Right (Green)

Left (Red)

5. Neutral deviation

Orange Slow blink

When stick operated

6. Gyro sensitivity zero

－

OFF

7. Switch switching

Green One blink

Each switching

8. Low battery

Red One ﬂash

When power drops to 3.8V

or less

The following items are supplied with the GYA431:

GYA431

Mini screwdriver

Extension cord: (Black)

Extension cord: (Red)

Sensor tape

Magic strap (for clamping the wiring)

Rudder control

(GYA430)

Aileron control

Elevator control

Servo

Mode

1M23N27402

• No part of this manual may be reproduced in any form without prior

permission.

• 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 occur 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.

Thank you for purchasing the GYA431 airplane gyro. Compact and

lightweight, the GYA431 is designed to control the ailerons (roll axis) or

elevators (pitch axis). Features include simple set-up and S.BUS/S.BUS2

connectivity.

The gyro is very sensitive to vibration. Securely mount it with the included double-sided sponge tape at a position where vibration is

minimal and the gyro is perpendicular to the axis to be controlled. Since double-sided tape will not stick to balsa, make a smooth sur-

face by cementing a smooth plastic sheet. to the frame and securely attach the gyro with double-sided tape. Provide a surplus in the

wiring and bundle the wiring with the included magic strap so that it will not interfere with the rod.

Summary of content (2 pages)

PAGE 1
M23N27402 Connection Rate Gyro for Airplanes Aileron or Elevator use S.BUS Connection Extension cord: (Black) To port 1 Aileron/Elevator CH INSTRUCTION MANUAL 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. • No part of this manual may be reproduced in any form without prior permission. • The contents of this manual are subject to change without prior notice.
PAGE 2
Servo Link the servo in accordance with the kit instruction manual. Adjust the linkage rod so that the trim amount is as small as possible. <2nd servo operating direction> During aileron mode operation the 2nd aileron servo moves in the same direction as the aileron servo. In the elevator mode, the 2nd elevator servo moves in the opposite direction of the elevator servo. Mount the servos as left and right objective linkage. gyro into the ready state.