User manual FUTABA GY611
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Manual abstract: user guide FUTABA GY611
Detailed instructions for use are in the User's Guide.
[. . . ] AVCS GYRO
INSTRUCTION MANUAL
YAW-AXIS STABILIZER FOR MODEL HELICOPTER (RATE GYRO)
2
Thank you for buying a GY611 AVCS gyro. Before using your new gyro, please read this manual thoroughly and use the gyro properly and safely. FOREWORD The GY611 gyro is an AVCS (Angular Vector Control System) rate gyro developed for model helicopter competition. [GY611 Features] · Super narrow pulse (760s) drive system substantially improves servo response. [. . . ] In the CMT mode, G1 operates in the AVCS mode and G2 operates in the NOR mode. In the CM mode, the GY611 can be used in both the AVCS and NOR modes.
DATA SETTING Flight mode
Initial value : F3C
19
Switches the flight mode. The 3D mode slightly sacrifices tail suppression and stop, but lets you control pirouette speed completely proportional with the rudder stick operation amount and is suitable for 3D flight. <3D mode steering angle setting>
· During 3D mode setting, the transmitter rudder steering angle is set to 100% and approximately 500º/second high pirouette speed. Therefore, initially set the transmitter rudder steering angle to a low value so that the tail can be safely controlled. (About 70%) The pirouette speed is proportional to the rudder steering amount without regard to the gyro sensitivity.
20
DATA SETTING AVCS Sense
Initial value : 100%
Adjusts the rudder control characteristic in the AVCS mode. Check the rudder operation feeling and stopping characteristic and adjust. When the flight mode (page 19) is the 3D mode, this value becomes the pirouette standard value.
Linkage Limit Setting
Initial value : 100%
Sets the rudder servo travel limit. Operate the rudder stick and adjust the rudder servo travel limit by pressing the +/- key so that the servo moves to the maximum linkage position. When setting, move the servo substantially so that the rudder angle automatically becomes 200% and limit setting is easy. A or B is displayed for the right and left directions.
Note: When this screen is displayed, the GY611 does not operate as a gyro. To check operation, return to the initial screen, etc.
DATA SETTING
Remote Gain Function
21
The remote gain function lets operator perform AVCS mode and Normal mode sensitivity adjustment and operation mode switching from the transmitter. The channel used here is called the "remote gain channel".
(Remote Gain Function) Transmitter
Gain/Mode Selection Gain Settings
· CH5 switch · Idle-Up switch (T9Csuper) · Flight condition (T14MZ, T9Z) · End Point (ATV) function · Gyro mixing (T14MZ/T9Z/T9Csuper)
Receiver GY611
Mode Settings
· Normal mode (NOR) · AVCS mode (AVC) · Selectable mode (CMT)
Gain Settings
· Gyro Gain Adjustment
Remote Gain Channel (CH5, etc)
22
DATA SETTING When Using a T9Z World Champion Model Transmitter Gyro Sense Mixing
The Gyro Sense Mixing (GYR) function lets operator perform two-point gain adjustment at each condition. Set the sensitivity at all conditions.
[GY611 Settings]
Select the gyro operation mode at the GY611 Mode screen. (AVC, NOR, or CMT)
[Transmitter Settings]
ATV function: Adjust both the RATE A and RATE B rates to 100% at the transmitter 5ch(GYR) ATV function setup screen. Select the Dual Mode (DUO) at the transmitter Gyro Sense Mixing setup screen. (The following page shows a setting example in the CMT mode. )
[Sensitivity Display]
The gain display indicates the actual gain at the GY611 normal screen display. The following shows the relationship between transmitter and gyro setting .
[Relationship between transmitter and gyro setting] Transmitter settings: 0% (GAIN1/GAIN2) GY611 mode settings: 50% 100%
Normal mode NOR: AVCS mode AVC: CMT: Normal mode AVCS mode (G2) (G1) 0% 100%
Actual gain: 100%
DATA SETTING [Setting Example]
23
Adjust the gyro gain at the Gyro Sense Mixing setup screen at each condition. NORML HEL : MODE PCM 0: 23: 17
85 % 15 %
: GAIN 1 : GAIN 2
0
20
40
60
80 100 END
Sensitivity rate: Choose the GAIN1 or GAIN2 by the CH5 switch. Use the following values as the sensitivity setting standard: CH5 switch Hovering
GAIN1 setting GAIN2 setting 85%
Flight
70% AVCS side
15%
30% 40%
Normal side
Actual gain:
70%
The GY611 sensitivity is 0% at 50%. When set over 50%, the GY611 operates in the AVCS mode and when set under 50%, the GY611 operates in the Normal mode. When setting is changed 1%, the gyro sensitivity is changed 2%.
24
DATA SETTING When Using a T14MZ Transmitter Gyro Mixing
The Gyro Mixing (Gyro) function lets operator perform three-point gain adjustment at each condition. [. . . ] If is displayed, display A by operating the rudder trimmer for that flight condition.
9 Rudder neutral position check
In the AVCS mode, the rudder servo neutral position is unknown. Check the neutral position by switching the GY611 to the NOR mode, or by moving the rudder stick to the left and right at least three times at high speed and immediately returning the stick to the neutral position. This temporarily resets the rudder servo.
INSTALLATION AND ADJUSTMENT
Flight Adjustments 1
37
In the AVCS mode, turn on the transmitter power, then turn on the gyro and receiver power. This reads the rudder neutral signal at the GY611.
· Never move the helicopter or rudder stick during the approximately three seconds that the -Hello- display blinks.
2
Hover in the Normal mode and adjust the rudder neutral position.
· In the AVCS mode, the rudder neutral position is automatically set, and linkage changes cannot be verified. [. . . ]
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