WARNING
Failure to follow these safety precautions may result in severe injury
to yourself and others.
Check that there is sufficient transmitter battery capacity .
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 model and transmitter steering wheel
for about 3-5 seconds after turning on the GYC440 (When
shared with the receiver).
• GYC440 initialization and neutral position reading. The GYC440 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.
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 GYC440 for applications other than RC
cars.
•This gyro is designed for RC cars 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.
AN
DG
Connecting the GYC440
Connecting the GYC440 (S.BUS receiver is required)
Mounting to Chassis
I
NSTRUCTION
M
ANUAL
I
NSTRUCTION
M
ANUAL
Rate Gyro for RC Cars
For RC models
AN
DG
GYC440
Steering
servo
Extension cord:（Black）
Extension cord:（Red）
Port 3
Port 1
Steering CH
Gyro gain CH
Port 2
Receiver
Gyro gain CH(Receiver)←connect→Port2(GYC440)
Remote gain effective. Trimmer(GYC440) becomes LIMIT.
Gyro gain CH(Receiver)←It does not connect→Port2(GYC440)
Remote gain is invalid. Trimmer(GYC440) becomes GAIN.
AN
DG
GYC440
S.BUS Receiver
S.BUS CH
Steering --- 1CH
Gyro gain --- 3CH
The port 2 is not connected.
S.BUS/S.BUS 2 Port
Steering
servo
Extension cord:（Black）
Port 3
Port 1
In S.BUS connection, the port
2 is not connected.
Remote gain is still effective.
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 a included double-sided sponge tape to firmly attach the gyro perpendicular to the control axis, at a
position where there is as little vibration as possible. Make the wiring loose and bundle it with the included
magic strap so that it will not interfere with the rod.
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 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.
● Dedicated RC car setting
Vehicle straightness 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
GYC440. The mode switching function allows AVCS/NORMAL gyro
mode switching.
● Integrated, compact,and light weight
Compact size
（
20.5x20.5x11mm
）
and light weight
（
3.7g
）
realized
by high density mounting technology.
● Easy setup
The GYC440 can be used immediately with minimum setup.
● Supporting the S.BUS/S.BUS2 connection
Only one wire connection to the receiver can operate the GYC440.
GYC440 Ratings:
(Integrated sensor type rate gyro)
• Gyro sensor: MEMS vibrating structure gyro
• Operating voltage: DC4.2V 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: Sensitivity trimmer. LED monitor. Servo selection(Digital/
Analog). S.BUS/S.BUS2 connection.
Features of GYC440
Functions
Monitor LED display
State
Color
Move
Reference
1. No servo pulse /
sensor error
Red
2 flash
2. Warm-up
Green
Fast blink
3. Sensor initialization Red/Green
ON
AVCS (Red)
NORMAL (Green)
4. Turn
Red/Green
Fast blink
Right (Green)
Left (Red)
5. Neutral offset
Orange
Slow blink
Stick operation
6. Gain OFF
−
OFF
7. Switch operation
Green
One blink
Each time of switch
operation
8. Low battery
Red
One flash
Less than 4.0V
●
Trimmer
（
Limit/Gain
）
●
LED
●
Servo selection switch
(Digital/Analog)
●
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 GYC440:
Mini screwdriver
Sensor tape
Extension cord: (Black)
Extension cord: (Red)
Wiring strap
GYC440
1M23N30902
Thank you for purchasing the GYC440
RC cars gyro. Compact and lightweight,
the GYC440 is designed to RC cars
steering control. 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.
