Futaba T16IZ and GYA553 Ver.2 Airplane Gyro Setup Guide

This manual provides instructions for setting up the Futaba GYA553 airplane gyro system with the T16IZ transmitter.

Introduction

By installing the latest software (Ver. 3.3 ~) on the T16IZ, you can set up the airplane gyro GYA553 on the T16IZ.

Connection T16IZ and GYA553

This section details the physical connection between the T16IZ transmitter and the GYA553 gyro unit using the included receiver connection cable.

Caution: Be sure to connect and disconnect the GYA553 and T16IZ connection cable with the power off.

The T16IZ transmitter connects to the GYA553 unit via a receiver connection cable. The GYA553 unit has ports labeled P.BOX, S.BUS.2, AIL, AIL2, ELE, ELE2, RUD, SB/R2, MONITOR.

Setting Procedure

Transferring Gyro Data

This process involves selecting and transferring gyro settings between the transmitter and the gyro unit.

Select "Gyro setting" on the last page of the Airplane Model Menu.
Select "Start". When "GY Settings Transfer" is selected, the gyro setting data saved in T16IZ is written to the gyro. Tap "Yes" to display the GYA553 data saved in T16IZ. This will download the gyro data to the T16IZ.
The home screen is displayed.

Copying data from Gyro A to Gyro B:

Connect Gyro A to the T16IZ and press [Start]. (Enter the data of A into T16IZ)
Connect Gyro B to T16IZ and press [GY Settings Transfer]. (Put data on A into gyro B). If you press Start here, the B data will be downloaded to the T16IZ and the A data will be lost.

Home Screen Details

On the home screen, basic information such as gyro operation mode, sensitivity, and battery voltage are displayed.

Gyro operation mode / Gyro gain: Displays "AVCS" or "Normal" operation mode and gyro gain of aileron (roll), elevator (pitch), and rudder (yaw) axis.
GYA553 Software version: The software version of the connected GYA553 is displayed.
Battery voltage: Displays the voltage of the receiver battery connected to GYA.

The home screen shows Holding Power (e.g., C5), Gyro status (OFF for AIL, ELE, RUD), and Gyro Version (e.g., 2.0).

Basic Menu and Configuration

The basic menu provides access to configuration settings.

Config 1/7: Gyro Set Mounting Direction

Set the mounting direction of GYA. Set mounting direction with reference to the figure below.

Options: [Up], [Left], [Down], [Right].

Config 1/7: WING/TAIL

Set the wing type and tail type of the GYA553. The wing type/tail type of the transmitter is not used and is normal.

Turn off the elevon/V-tail mixing on the transmitter side.
Do not use transmitter sub-trim. Adjust using the gyro neutral offset.
When using the S.BUS servo, you can also use the neutral offset function of the S.BUS servo setting parameters.

Wing Type: [Normal], [ELEVON]

Tail Type: [Normal], [V-Tail]

Config 1/7: Servo Type

Select the servo type according to the servo to be used.

Digital servo → DG : 285 Hz
Analog servo → AN : 70 Hz

The stability of digital-servo mode increases for high-speed control action.

Config 1/7: SB/R2 OUT

Select the SB/R2 port assignment.

Options: [S.Bus], [RUD2], [CH3(THR)]. S.BUS devices can be connected to this port.

When using two rudder servos: The GYA553 unit has ports for Aileron, Aileron 2, Elevator, Elevator 2, Rudder, Rudder 2, and S.BUS 2.

Gyro Direction and Neutral Offset

Config 2/7: Gyro Direction

It is the direction setting of the gyro. Be careful as it will crash if the direction is reversed. For dual aileron, dual elevator, and dual rudder aircraft, check the operating direction of each second aileron/elevator/rudder.

Checks:

Turn the airplane to the left on the ground and check that the ailerons operate to the right.
Raise the airplane with its nose upward and check that the elevator operates downward.
Turn the airplane to the right on the ground and check that the rudder operates to the left.

Gyro direction settings are available for AIL, ELE, RUD, AIL2, ELE2, RUD2.

Config 3/7: Neutral Offset

Neutral position setting for each servo. This will move the neutral to the desired position.

Offset values can be set for AIL, ELE, RUD, AIL2, ELE2, RUD2 (e.g., +0).

Servo Limit

Config 4/7 & 5/7: Servo Limit

This is the limit setting for each servo. The position of the maximum operation is read into the gyro in the first setting.

Servo limits are set for AIL, ELE, RUD, AIL2, ELE2, RUD2, typically at 100%.

Aileron Example: Adjust the value (%) to reach the maximum operating position by moving the stick to full right or full left.

Holding Power

Config 6/7: Holding Power

It is a function to adjust the posture holding force of the aircraft in AVCS mode. Decreasing the value weakens the holding power and makes the operation feeling closer to the normal mode.

Current rate numbers C1 to C5 can be displayed and adjusted by operating the channel of the transmitter. Up to 5 different data for attitude holding force rate can be set and switched via the transmitter.

Switching: Can be set to SW of DG1 or DG2, or to a dial or lever.

Channel Rate Display: Shows rate numbers C1 to C5 and their corresponding channel positions.

Reset

Config 7/7: Reset

Reset each Config item. It returns to the initial value.

SBUS Basic Menu

Set the CH for each function according to the transmitter to be used. Any unused functions should be set to INH (Inhibited).

Functions include Gain AIL, Gain ELE, Gain RUD, ELE2, RUD2, and Holding Power.

Rate Switching: Tap the CH used for rate switching to select it.

WARNING: Always verify that the S.BUS function assignments match your transmitter's function assignments. If any changes are made within the transmitter function assignments, then it will also be necessary to make the changes within the S.BUS function assignments. To change the channel, GYA553 and T16IZ must be connected.

Auto Recovery: ON-OFF channel for auto recovery.

Reset: Reset each S.BUS function. It returns to the initial value.

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