User manual FUTABA GYA352
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Manual abstract: user guide FUTABA GYA352
Detailed instructions for use are in the User's Guide.
[. . . ] Rate gyro for models
1M23N07408
AVCS RATE GYRO
Thank you for purchasing a GYA352 AVCS gyro. 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. [. . . ] Use the gyro in the Normal mode unless you are an expert in rudder operation. Increase the travel width of the flight control surfaces so that they will not strike the linkage even when the servo is operated to its maximum deflection angle. ·Always use the miniature screwdriver supplied to operate the GYA352 selector switches and trimmers. Do not apply excessive force.
When using the gyro mixng for Elevon/V-tail wing, this switch is set to the ON position. In this case, do not use the transmitter mixing function for Elevon/V-tail wing. In case of Elevon wing, always use the X-axis for the aileron control and the Y-axis for the elevator control. In case of V-tail wing, always use the X-axis for the rudder control and the Y-axis for the elevator control. If not, the gyro will operate in the wrong direction and result in a dangerous situation. When not using the gyro mixng, this switch is set to the OFF position.
6. This sets the X-axis gyro gain to 50%.
·When SW-E is in the forward, center, and backward positions, the GYA352 operates in the AVCS, OFF, and Normal modes, respectively.
NORMAL
4. Rudder effect adjustment
Use the transmitter steering angle adjustment function to adjust the rudder effect. Control Gain However, when the rudder effect is substantially different trimmer from that when the gyro was not mounted, adjust it with the (C GAIN) Control Gain trimmer. Adjust the control gain so that the rudder effect matches the rudder effect when the rudder stick is set to its maximum position. When the control gain is increased, the rudder effect increases.
(CH7 knob)
OFF
AVCS
4. Call the transmitter P-MIX3 screen, and make the following settings: - Activate P-MIX3. - Select switch direction DOWN.
Standard Setting
(Setting using all GYA352 functions)
This standard setting controls gain switching and AVCS/ Normal gyro operation mode switching from the transmitter. However, two vacant channels are necessary to switch the gain and operation mode. When there are not enough vacant channels, do not connect the gain switching connector and operate the gyro in the Normal mode only. The gain of the gyros of two axis can also be switched simultaneously using a branch cord.
(CH8 knob)
5. Call the transmitter P-MIX4 screen, and make the following settings: - Activate P-MIX4. This sets the Y-axis gyro gain to 50%.
·When SW-E is in the forward, center, and backward positions, the GYA352 operates in the AVCS, OFF, and Normal modes, respectively.
NORMAL
OFF
Mounting to fuselage and initial setting 1 Gyro mounting
Install the gyro to the axis to be controlled in accordance with "Gyro Mounting Method".
AVCS
(Gain setting with T8UAPS or T9CAP example 2)
The following describes how to use CH5 to switch the X-axis and Y-axis gains simultaneously. Connect the X-axis and Y-axis Gain switching connectors to the receiver CH5 output using a branch cord.
(T8UAPS) (T9CAP) 1. Call the transmitter CH5 ATV(E. POINT) screen and make the following setting: Set the rate of both directions of the CH5 switch to 70%. This sets the gyro gain to 50%.
2 Gyro connection
· Connect to the servo.
· Connect to the servo. · Connect to the receiver output of the channel to be controlled. [. . . ] In this case, the monitor LED flashes once to show that memorization is complete. The neutral data can also be memorized by setting the gain switch to the AVCS position and turnning on the gyro power again. When using flight conditions, verify that the gyro monitor LED lights under all the flight conditions used. This ends AVCS side setting.
Neutral check method
In the AVCS mode, the servo does not return to the neutral position even though the stick is returned to neutral. [. . . ]
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