Futaba GYC470 All-Purpose Electric Car Instruction Manual

Futaba GYC470 All-Purpose Electric Car

Product Information

GYC470 RC Car Gyro
The GYC470 RC car gyro is a compact and lightweight device designed to control steering in your RC car. It features simple setup and S.BUS/S.BUS2 connectivity. The gyro sensitivity can be adjusted from the transmitter if it has 3 or more channels capable of 3CH adjustment. The GYC470 boosts vehicle straightness and cornering ability, regardless of surface type. It also allows gain adjustment through the transmitter or the trimmer on the device itself. The mode switching function permits AVCS/NORMAL gyro mode switching. With high density mounting technology, the GYC470 is compact (20.7 x 20.7 x 11 mm) and lightweight (3.7 g). It can be used immediately with minimal setup and requires only one wire-receiver connection when used with S.BUS/S.BUS2.

Functions

• 43NPEF0/0” – Gain adjustment from the transmitter (3 or more CH).
• 1PSU4UFFSJOHTFSWPPVUQVU – AVCS/NORMAL gyro mode switching.
• 1PSU(BJOJOQVU – Remote gain adjustment.
• (ZSP EJSFDUJPO – High density mounting technology.

Product Usage Instructions

Connecting the GYC470
To connect the GYC470, follow these steps

1. For S.BUS connection
   • Connect the S.BUS wire from the receiver to the S.BUS port on the GYC470.
   • Connect the power supply wire from the receiver to the power supply port on the GYC470.
2. For S.BUS2 connection
   • Connect the S.BUS2 wire from the receiver to the S.BUS2 port on the GYC470.
   • Connect the power supply wire from the receiver to the power supply port on the GYC470.

Note: Make sure to read the instruction manual thoroughly before using the GYC470 gyro. Store the manual in a safe place for future reference.

IINSSTTRUCTTIION MANUALL

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.
• Futaba is not liable for any potential damage (accidental or otherwise) that may oc-cur after installation.

Futaba receiver only

Features of GYC470

Dedicated RC Drift car setting
Boosts vehicle straightness and cornering ability, regardless of surface type.

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 GYC470. The mode switching function allows AVCS/NORMAL gyro mode switching.

Integrated, compact, and lightweight
High density mounting technology makes the GYC470 compact (20.7 x 20.7 x 11 mm) and lightweight (3.7 g).

Easy setup
The GYC470 can be used immediately with minimal setup.

S.BUS/S.BUS2 support
Only one wire-receiver connection is needed to operate the GYC470 with S.BUS/ S.BUS2.

Only for Futaba digital servos

Functions

Functions

Thank you for purchasing the GYC470 RC car gyro. Compact and lightweight, the GYC470 is designed to control steering in your RC car. If the transmitter has 3 or more channels (capable of 3CH adjustment), gyro sensitivity can be adjusted from the transmitter. Features include simple set-up and S.BUS/S.BUS2 connectivity.

GYC470 Ratings
(Integrated sensor type rate gyro)

• Gyro sensor : MEMS vibrating structure gyro
• Operating voltage : DC 4.0 V to 8.4 V
• Current drain : 30mA (excluding a servo)
• Operating temperature range : -10 ºC to +45 ºC
• Dimensions: 20.7 x 20.7 x 11.0 mm (0.82 x 0.82 x 0.43 in) (except connector)
• Weight : 3.7 g (0.13 oz)
• Functions: Sensitivity trimmer. LED monitor. Servo selection (SR mode

Set Contents
The following items are supplied with the GYC470

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 GYC470 (When shared with the receiver).
• The GYC470 is activated when the power is turned on. The neutral position is also read at the same time. If initialization is successful, you will see the servo move left and right slightly.

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 driving from the neutral position.

Do not use the GYC470 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 damage.

Do not place gyro near heating equipment (engine, motor, ESC, battery, servo, etc.).
Always allow the gyro to adjust to the outside temeprature before driving. A large tem-perature change during use will cause drift and other operational 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 GYC470

• Gyro gain CH(Receiver)←connect→Port2(GYC470) Remote gain effective. Trimmer(GYC470) becomes LIMIT.
• Gyro gain CH(Receiver)←It does not connect→Port2(GYC470) Remote gain is invalid. Trimmer(GYC470) becomes GAIN.

S.BUS Connecting the GYC470

• When using SR mode, SBUS connection is not possible. When using SR mode, connect as shown on the left.

S. BUS Receiver

Mounting to 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

The direction of rotation fixed by the gyro can be any direction within 360° relative to the steering axis controlled by the gyro.

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

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.

Steering 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. 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.

SR mode
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.

Adjustments.

Setup before a run [ Remote gain use ]
Gain adjustments are carried out with a transmitter. Follow this procedure when the gyro’s port 2 and the receiver’s gain CH are connected (or connected via S.BUS).

1. Run adjust the the car in steering trimthe gyro off (sub trim).mode (gyro gain 0%) and
2. you are using. Servo selection Select the appropriate setting for the steering servo that switch of GYC470 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).
3. Turnsensitivity on toyour about 70% transmitter’sat the powerNORMAL. Setor AtheVCS gyroside in according to the transmitter’s instruction manual. Refer to the <AVCS / NORMAL Modes> graph on the next page.
   • Gyro sensitivity zero — LED OFF
   • VCS side — LED red A
   • NORMAL side — LED green
   • *Make the gain tuning adjustment after running the car and noting the behavior.
4. initializeReceiver OwhenN → theThe GpowerY C470 is turn ed requires on. 3-5 Do notseconds move to 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 slightly several times, indicating that the GYC470 is now ready for use. If the neutral has shifted, the LED will blink orange. In that case, it reboots.
5. limitMove the trimmersteering to wmaximizeheel left servoand right operationand a djustwithout the binding the control linkage or mechanical limits.
   ＜Limit Trimmer Adjustments＞
   

*Limit is symmetrical from the neutral position. Only proceed with the limit adjustment after completing the trim adjustment.

Trimmer operation
*Since this gyro is very small, the adjustment trimmer is a small part. Al-ways operate the trimmer with the included mini screwdriver without applying excessive force.
Using the gyro direction switch, adjust the gyro direction so that steering moves all the way to the right when the car is turned to the left. Correctly set gyro operating direction or the car will not run.

[ When remote gain function is off ]

Adjust the gyro sensitivity with the GYC470 trimmer.

• If port 2 of gyro is not connected, remote gain is automatically prohibited. (S.BUS connection is excluded)
• In this case, the limit trimmer is automatically changed to the gyro sensitivity setting trimmer.
• (Limit adjustment cannot be performed. A limit is fixed to 50 right and left.)

1. you are using. The GYC470’Select the appropriate setting for the steering servo that s servo selection switch of GYC470 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).
2. Gainright : A trimmer VCS (red) from the halfway to the70% left point. : NORMAL(green) or
3. Receiver ON → The GYC470 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 slightly several times, indicating that the GYC470 is now ready for use. If neutral has shifted, LED will blink orange. In that case, it reboots.
4. Using 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. Correctly set the operating direction or the car will not run.

Gyro Sensitivity and mode Switching

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.
When the remote gain function is not used, the clockwise direction from the center of the sensitivity setting trimmer is AVCS mode and the counterclockwise direction is NORMAL mode. At the center position, the sensitivity becomes 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. 3CH (GAIN CH) is set up with reference to the transmitter manual. Neutral position becomes GAIN 0%. It is divided into AVCS side and NORMAL side. Refer to the GYC470’s LED.

• Gyro sensitivity zero — LED OFF
• VCS side — LED red A
• NORMAL side — LED green

When Port 2 is not used for gain and SBUS/SBUS2 is not used, the trimmer works as the gain adjustment shown below.

Tuning Adjustment
Drive the vehicle and adjust the gyro sensitivity.

1. Always re-trim with the gyro gain at 0.
2. IIn this state, turn the receiver power OFF → ON. The neutral position is memorized. Steering trim must not be performed while the car is running.

AVCS / NORMAL Modes
The gyro has 2 operating modes : NORMAL mode and AVCS mode. In AVCS mode, the angle is controlled simultaneously with NORMAL mode’s rate control (swing speed). The AVCS mode increases straight stability more than NORMAL mode. Choose your mode to match your preferences.

S.BUS System
Unlike conventional radio control systems, the S.BUS system sends operating signals from the receiver to a gyro or other S.BUS compatible devices by data communication. The S.BUS compatible device executes only executes data for the channels it sets. 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.).

FUTABA CORPORATION

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• 1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan
• TEL : +81-475-32-6051,
• FAX: +81-475-32-2915 OFUTABA CORPORATION 2023, 4 (3)

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