Features of GYA450
Features of GYA450
Set Contents
Set Contents
Connection
Connection
S.BUS Connection
S.BUS Connection
Name and Function of Each Part
Name and Function of Each Part
● Dedicated airplane setting
Stabilizes flight, even with hard-to-control scale models.
● Compatible with elevator or rudder control
(Corresponds to 2 elevators and 2 rudders for S.BUS/S.BUS2 connection)
The GYA450 can choose and use an elevators or a rudder.
● Compatible with Alevon or V-tail wing
Two axes control is available with two of the GYA450 or GYA451 when using a
combined connection. (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 GYA450.
● Easy to mount, compact size, and lightweight
High-density mounting technology makes the GYA450 compact (20.5 x 20.5 x 11
mm) and lightweight (3.7 g).
● Easy setup
Basic settings let you be flight-ready in an instant.
● Supporting the S.BUS/S.BUS2 connection
Only one wire connection to the receiver can operate the GYA450.
● This gyro is equipped with a sensor with excellent vibration resis-
tance.
This gyro can also be used with large combustion engine powered models.
●
Trimmer (Limit/GAIN)
(Digital / Analog servo
function)
●
LED
●
Elevator/Rudder
selector switch
●
Port 1 (S.BUS input/Elevator/
Rudder servo input)
●
Port 2 (Gyro sensitivity input)
●
Port 3 (Elevator/Rudder servo output)
●
Gyro direction
switch
Elevator(Rudder)
servo
Extension cord: (Black)
Accessory connector (Red)
GYA450
To port 3
To port 1
Elevator /Rudder CH
Gyro sensitivity CH
To port 2
Receiver
Gyro gain CH(Receiver)←connect→Port2(GYA450)
Remote gain effective. Trimmer(GYA450) becomes LIMIT.
Gyro gain CH(Receiver)←It does not connect→Port2(GYA450)
Remote gain is invalid. Trimmer(GYA450) becomes GAIN.
S.BUS Receiver
Elevator
(Rudder) servo
Extension cord: (Black)
To port 3
To port 2
To port 1
S.BUS/S.BUS2 port
GYA450
2nd servo
At S.BUS/S.BUS2 operation,
the channels are fixed as
shown in the table below.
Match the transmitter
channels to these.
Monitor LED display
Operation status
Color
Display
Remarks
1. No servo pulse /
sensor error
Red
3 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 / Up (Green)
Left / Down (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
• 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 oc-
cur after installation.
The following items are supplied with the GYA450:
GYA450
Mini screwdriver
Extension cord: (Black)
Extension cord: (Red)
Sensor tape
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 flights 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 GYA450 (When shared with the re-
ceiver).
• GYA450 initialization and neutral position reading. The GYA450 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.
• Attempting to fly with the operating direction reversed is extremely dangerous. Al
-
ways check your gyro's direction to ensure safe flights.
Do not strike the gyro with a hard object. Do not drop it onto a con-
crete 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 GYA450 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
-
fore flight. A large temperature change during use will cause drift and other opera
-
tional issues.
Servo
Mode
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.
I
NSTRUCTION
M
ANUAL
I
NSTRUCTION
M
ANUAL
For RC models
Rate Gyro for Airplanes
Elevator or Rudder use
1M23N34802
GYA450 Ratings:
(Integrated sensor type rate gyro)
• Gyro sensor: MEMS vibrating structure gyro
• Operating voltage: DC 4.0 V to 8.4V
• Current drain: 30 mA (excluding a servo)
• Operating temperature range: -10ºC to +45ºC
• Dimensions: 20.5 x 20.5 x 11.0 mm (except protrusion)
• Weight: 3.7 g
• Functions: (1) Gyro sensitivity trimmer, (2) Monitor LED, (3) CH change
elevator or rudder, (4) S.BUS/S.BUS2 compatibility, (5) Digital/Analog
servo function
Thank you for purchasing the GYA450 airplane gyro. Compact
and lightweight, the GYA450 is designed to control the elevators
(pitch axis) or rudder (yaw axis). Features include simple set-up
and S.BUS/S.BUS2 connectivity.
S.BUS 3-axes connection
S.BUS 3-axes connection
S.BUS Elevon 2-axes Connection Example
S.BUS Elevon 2-axes Connection Example
S.BUS V-Tail 2-axes connection Example
S.BUS V-Tail 2-axes connection Example
S.BUS connection makes the wiring extremely simple.
The GYA450 and GYA451 can be connected by one
3-way hub. The aileron, elevator and rudder servos are
output from the gyro. Servos other than S.BUS servos
also can be used.
The example shows dual aileron, elevator and rudder
operation. The transmitter function setting are shown
below. A total 10 channels are used with 3 axes gyro
control. The model type are set to 2AIL+AILVATOR. 2nd
rudder is set to CH10.
Function
GYA451(Aileron)
GYA450 (Elevator)
GYA450 (Rudder)
Aileron
CH1
Elevator
CH2
Rudder
CH4
2nd Aileron
CH6
2nd Elevator
CH9
2nd Rudder
CH10
Aileron Gain
CH5
Elevator Gain
CH7
Rudder Gain
CH8
● In case of the Elevon operation, using the GYA451 for aileron control and
GYA450 for elevator control. Set aileron mode to the GYA451 and elevator
mode to the GYA450.
● Turn off the Elevon mixing on the transmitter. The gyro generates the
Elevon mixing itself. Select the transmitter model type to 1AIL and normal
tail.
● It will not allow to use the Sub-Trim function on the transmitter. Correct the
aileron and elevator control surface to be flat by the mechanical linkage
setting. When the aileron Sub-Trim moves, both aileron and elevator servo
are moved at the same time.
● The power to the gyros must be supplied at the same time. It may happen
the malfunction of recognizing the correct operation mode.
● In case of the V-tail operation, using the GYA451 or GYA450 for elevator
control and GYA450 for rudder control. Set elevator mode to the GYA451 or
GYA450 and rudder mode to the GYA450.
● Turn off the V-tail mixing on the transmitter. The gyro generates the V-tail
mixing itself. Select the transmitter model type to normal tail.
● It will not allow to use the Sub-Trim function on the transmitter. Correct the
elevator and rudder control surface to be flat by the mechanical linkage
setting. When the elevator Sub-Trim moves, both elevator and rudder servo
are moved at the same time.
● The power to the gyros must be supplied at the same time. It may happen
the malfunction of recognizing the correct operation mode.
Aileron servo
2nd Aileron servo
To port 3
To port 2
To port 1
2nd Elevator servo
To port 2
GYA451
To port 3
To port 1
To port 1
2nd Rudder servo
To port 2
GYA450
GYA450 or GYA451
S.BUS Receiver
Elevator servo
Rudder servo
Extension cord: (Black)
To port 3
S.BUS/S.BUS2 port
Pitch axis
GYA450
GYA451
S.BUS Receiver
Elevator servo
Aileron servo
Extension cord: (Black)
To port 3
To port 3
To port 2
To port 2
To port 1
S.BUS/S.BUS2 port
Roll axis
GYA450 or GYA451
GYA450
S.BUS Receiver
Elevator servo
Rudder servo
Extension cord: (Black)
To port 3
To port 3
To port 2
To port 2
To port 1
S.BUS/S.BUS2 port
Yaw axis
Pitch axis
Function
Elevator Mode
Rudder Mode
Elevator
CH2
Rudder
CH4
2nd Elevator
CH9
2nd Rudder
CH10
Gyro Gain（Elevator）
CH7
Gyro Gain（Rudder）
CH8
