FUTABA CGY750 Instruction Manual
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FUTABA CGY750 Instruction Manual

3-axis gyro and governor 3-axis flybarless control system
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1M23N24915
T
ABLE OF
• Introduction -----------------------------------------------------------------2
• Warranty and Repair Service (in U.S.A.) ---------------------------------2
• Features ----------------------------------------------------------------------2
• Contents ----------------------------------------------------------------------2
• Precautions ------------------------------------------------------------------3
• Specifications ---------------------------------------------------------------3
• Replacement and Optional Items --------------------------------------4
• Gyro Sensor Installation ------------------------------------------------------ 4
• Connecting the CGY750 ----------------------------------------------------5
• TX Set-up ------------------------------------------------------------------------- 6
• Governor Installation -----------------------------------------------------6
• Governor Fuselage Setting Precautions -----------------------------6
• First Map ------------------------------------------------------------------------- 7
• Opening Screen-------------------------------------------------------------7
• Home Screen ----------------------------------------------------------------7
• Warning Display ------------------------------------------------------------8
• Setting Menus --------------------------------------------------------------8
• S.BUS Basic Setting --------------------------------------------------------9
• Swash Basic Setting ----------------------------------------------------- 10
• Swash Detail Setting ---------------------------------------------------- 12
• TX Aileron/Elevator Gyro Gain Set-up ------------------------------ 13
• Flight Tuning Setting --------------------------------------------------- 14
• Rudder Basic Setting ---------------------------------------------------- 15
• Governor Basic Setting ------------------------------------------------- 16
• Governor Speed Setting ------------------------------------------------ 18
• Governor Operation ----------------------------------------------------- 18
• Recommended Gyro Gain Settings ---------------------------------- 18
• Adjustments During the Test Flight --------------------------------- 18
• Flight Tune Expert Setting --------------------------------------------- 19
• Rudder Gyro Expert Setting ------------------------------------------- 19
• Governor Expert Setting ----------------------------------------------- 20
• Condition Menu ---------------------------------------------------------- 21
• CGY750V2-3D-MAP ------------------------------------------------------ 22
• CGY750V2-F3C-MAP ----------------------------------------------------- 24
• F3C Style Tuning Section ----------------------------------------------- 26
: Instructions for gyro functions
Gyro
: Instructions for governor functions
Governor
Technical updates and additional programming examples can be found at:
V2.0~
C
ONTENTS
www.futaba-rc.com/faq

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Summary of Contents for FUTABA CGY750

  • Page 1: Table Of Contents

    • Recommended Gyro Gain Settings ---------------------------------- 18 • Adjustments During the Test Flight --------------------------------- 18 • Tips for Using the CGY750 Governor with Electric Models ---- 18 • Flight Tune Expert Setting --------------------------------------------- 19 • Rudder Gyro Expert Setting ------------------------------------------- 19 •...

  • Page 2: Introduction

    ERVICE (IN U.S.A.) • Other functions www.futaba-rc.com or www.hobbyservices.com Fax (217)-398-7721, Tel (217) 398-0007 ONTENTS CGY750 Control Box • Symptoms (including when the problem occurred) Gyro Sensor • System (Transmitter, Receiver, Servos and model numbers) • Model (Model name) • Model numbers and quantity •...

  • Page 3: Precautions

    Do not drop the CGY750 sensor onto a hard surface or subject the WARNING - Procedures which may lead to a dangerous condition CGY750 sensor to a strong shock as this may damage the sensor.

  • Page 4: Replacement And Optional Items

    fly- mance. ing the CGY750. • The CGY750 must be used with a rigid tail rotor drive system. • The bottom of the CGY750 Gyro Any modern torque tube or belt drive system should be ad- Sensor must be perpendicular to equate.

  • Page 5: Connecting The Cgy750

    100/100. Connection to the receiver, servos and sensors Using the CGY750 with a electric helicopter DANGER It is necessary to remove the pinion gear from the electric motor or disconnect the motor from the ESC before powering the model up for setup or bench testing.

  • Page 6: Tx Set-Up

    TX S ET-UP Condition selection Sensor mounting Rotor Head Gyro Gain “RotHd.Gn” Tail Rotor Gain “RGn” Sensor adjustment NOTE - Before starting helicopter set-up, be sure that “Revolution sensor testing” Governor Basic Setting all dual rates, pitch curve, and endpoint values are set to 100/100.

  • Page 7: First Map

    FIRST MAP Home screen The figure shows the first layer of the editing sequence. Rudder gain display MODE DATA Push Push +/– key +/– key Thick line Thin line shows MODE. shows DATA. DATA Push Engine Swash runtime +/– key OLED Setting Flight Tuning Expert...

  • Page 8: Warning Display

    1. Engine runtime Governor you must land immediately. Memory writing indicator 2. OLED display options [default: Saver] WARNING Do not power off the CGY750 when the Memory writing symbol is dis- played. 3. Condition menu [default: OFF] ETTING ENUS WARNING Always exit the Setting Menu and return to the home screen before fly-...

  • Page 9: S.bus Basic Setting

    ASIC ETTING S.BUS BASIC MAP WARNING (1) S.BUS connection setting: Always verify that the S.BUS function as- start display signments match your transmitter’s function (in the FUNCTION menu) assignments. If any MODE Push Use the mode [+] or [-] keys to +/–...

  • Page 10: Swash Basic Setting

    [Gyro+H4] Must be selected when a [H4 xx] swash plate type is selected. This disables the governor and throttle servo output and the [TH/E2] port on the CGY750 is now the second “Elevator” [E2] servo output. (4) Servo type [default: DG:285Hz]...
  • Page 11 (pull) and push the DATA [+] or [-] key. The back direction of the elevator data will be saved to CGY750. To confirm the setting, move the elevator stick to full back, and the “!”...

  • Page 12: Swash Detail Setting

    WASH ETAIL ETTING SWASH DETAIL MAP MODE Push +/– key (1) Swash expert setting: start display Use the mode [+] or [-] keys to navigate through the menu. Going from MID to HIGH and MID to LOW collective pitch check that the swash plate is traveling flat throughout the entire range.

  • Page 13: Tx Aileron/Elevator Gyro Gain Set-Up

    Rrturn to SWASH EXPERT MAP. 1/2 TX A ILERON / LEVATOR ET-UP Setting the CGY750 gains by using endpoints or manual adjust- : TX Set-up for adjusting cyclic gains via the transmitter. ments Using the Remote Gain Functions (roll, pitch and yaw) WARNING Verify that the gyro compensates in the correct direction for all three axes before flight.

  • Page 14: Flight Tuning Setting

    [-] keys within this parameter. Set to 100, a TX Gain value of 100% will display 100% on the CGY750. If a pilot is in need of more gain, base gain can be increased to allow the gain on the CGY750 to be higher than 100%.

  • Page 15: Rudder Basic Setting

    (4) Limit setting [default: 100%, setting range: 50~150%] When the CGY750 is in the Sv.Limit parameter the gyro will no longer operate and the tail servo will always center when the tail rotor stick is released.

  • Page 16: Governor Basic Setting

    2p. H4-00/H4-45. NOTE: For nitro use, set to 2p. NOTE: The input signal range of the CGY750 is 0.0v-3.0v. Exceeding this voltage range may cause damage to the CGY750. (5) Servo selection [default: Analog] WARNING *It does not display, when Opr.
  • Page 17 RSET (Data-) key. (8) Servo limit point setting WARNING Servo limit point setting defines the overall trav- When using the CGY750 for the first time, or DATA Push el range for the throttle servo. It is fundamental when making changes in the throw of a servo +/–...

  • Page 18: Governor Speed Setting

    OVERNOR PEED ETTING * When the CGY750 is used with a ESC or BEC and a power switch is not used there is a possibility that the intermittent connection as you “S.BUS Basic Setting” connect the flight battery may cause the CGY750 initialization to fail.

  • Page 19: Flight Tune Expert Setting

    Expert Gyro and Governor Definitions and Tuning Section XPERT ETTING FLT.Tune EXPERT MAP (1) Flight tune expert setting: start display Use the MODE[+] or MODE[-] keys to navigate through the menus (2) Dead band (AIL and ELE combined) [default: 4.0μS ] [ranges: 0μS ~ 25.0μS] Transmitter control dead band.

  • Page 20: Governor Expert Setting

    Expert Gyro and Governor Definitions and Tuning Section OVERNOR XPERT ETTING GOVERNOR EXPERT MODE Push (1) Governor Expert setting: start display +/– key Push mode + or – key, to scroll through the editing menu. Pushing mode + or – key for more than one second, brings you back to governor basic menu.

  • Page 21: Condition Menu

    ONDITION COND MENU MAP MODE Push Condition menu [default: OFF] +/– key CondData Cond. 1 Condition switch [default: DG1] → Change for Setting [C1 ⇔ C2] MODE When you are adjust- Push +/– key 1 second ing a condition value n o t i n t h e s e l e c t e d The condition value condition, the visual...

  • Page 22: Cgy750V2-3D-Map

    Home P& ： Push and Flight Tuning Start RUD Gyro Basic Start Condition Basic Start Swash Basic Start S.BUS Basic Start Gover Basic Start Gyro base gain Setup Style Servo type Swash rate Aileron channel Revolution setting Cyclic rate Operation mode Gyro direction Pitch rate Elevator channel...
  • Page 23 Home P&H P&H P&H P&H P&H ： Push and hold （MODE) Swash Detail Start Governor Expert Start Rudder Expert Start Flight Tune Expert Start S Basic Start Neutral adjustment PIT→AIL mixing rate Governor working mode Dead band on channel Pirouette speed PIT→ELE mixing rate Revolution display mode Head hold Aileron...

  • Page 24: Cgy750V2-F3C-Map

    Home P& ： Push and Swash Basic Start Flight Tuning Start RUD Gyro Basic Start Condition Basic Start S.BUS Basic Start Gover Basic Start Setup Style Gyro working mode Servo type Swash rate Aileron channel Revolution setting Operation mode Gyro base gain Gyro direction Pitch rate Elevator channel...
  • Page 25 P&H P&H P&H P&H P&H ： Push and hold （MODE) Swash Detail Start Governor Expert Start Rudder Expert Start Aileron Expert Start Elevator Expert Start I.Gain AI I.Gain EL 80 % 80 % PIT→AIL mixing rate Rudder servo neutral Governor working mode Integral gain Integral gain D.Gain AI...

  • Page 26: F3C Style Tuning Section

    (Governor Basic) Response [default: Middle] This parameter sets the rotational equalizer direction. Setting meth- od: When the CGY750 is in this mode, the swashplate will tilt on di- This parameter selects the governor operation response. Select rection and stay that way. Observe the direction of the tilt relative to the best match for your engine type.
  • Page 27 (Rudder Expert) Neutral compensation [default: on] tion in the governor menu. NOTE that rotor head speed information must still be set into the CGY750 governor menu even if using an This parameter works to recall the neutral point of the rudder servo electronic speed control (ESC) with an electric model.

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