Manual Futaba GYA441 (page 1 of 2) (English)

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Features of GYA441

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 GYA440 and GYA441 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

GYA441

(aileron)

GYA441

(elevator)

GYA440

(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

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● Compatible with aileron or elevator control

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● Remote gain function

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● Integrated type, compact size and light weight

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● Easy setup

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● Supporting the S.BUS/S.BUS2 connection

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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)

GYA441

To port 3

To port 1

Aileron/Elevator CH

Gyro sensitivity CH

To port 2

Receiver

Gyro gain CH(Receiver)←connect→Port2(GYA441)

Remote gain eﬀective. Trimmer(GYA441) becomes LIMIT.

Gyro gain CH(Receiver)←It does not connect→Port2(GYA441)

Remote gain is invalid. Trimmer(GYA441) becomes GAIN.

S.BUS Receiver

Aileron (Elevator) servo

2nd servo

Extension cord: (Black)

GYA441

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

GYA440(Sold separately)

GYA441

Aileron servo

S.BUS/S.BUS2 port

S.BUS Receiver

This is a three axes

connection example. The

rudder uses a GYA440 and

the receiver is an R6303SB.

＜ GYA441 aileron mounting ＞

The turning direction which ﬁxes 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.

GYA441 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: 3.7g

• 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

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GYA441

Mini screwdriver

Extension cord: (Black)

Extension cord: (Red)

Sensor tape

Magic strap (for clamping the wiring)

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-

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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 GYA441 (When shared with the re-

ceiver).

• GYA441 initialization and neutral position reading. The GYA441 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 (a little).

Always check the direction of operation of the gyro.

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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 GYA441 for applications other than RC airplanes.

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

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

battery, servo, etc.).

• Always allow the gyro to adjust to the surrounding environmental temperature be-

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tional issues.

Rudder control

(GYA440)

Aileron control

Elevator control

Servo

Mode

1M23N30802

• 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.

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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.

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Futaba GYA441 Manual

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