Futaba P-GY760R-GBP1 Helicopter Gyroscope User Manual

1. Introduction

The Futaba P-GY760R-GBP1 system combines the advanced CGY760R gyroscope with an integrated receiver and speed governor, along with the GPB-1 programming box. This comprehensive unit is designed to provide superior stability, precise control, and easy configuration for a wide range of RC helicopters. It offers robust performance for both casual flying and demanding 3D maneuvers, ensuring an optimized flight experience.

2. Safety Information

Please read and understand all safety precautions before operating this product. Failure to do so may result in injury or damage to the product or other property.

• Always ensure proper installation and secure mounting of the gyroscope unit to prevent vibration-induced errors.
• Verify all wiring connections are correct and secure before applying power. Incorrect wiring can cause damage.
• Use only the recommended power supply voltage. Exceeding the voltage limits can damage the unit.
• Keep the unit away from moisture, dust, and extreme temperatures.
• Perform pre-flight checks thoroughly, including servo direction and throws, and gyro compensation.
• Do not attempt to modify the unit. Unauthorized modifications can void the warranty and pose safety risks.
• Always disconnect power when not in use or during maintenance.

3. Package Contents

Verify that all items listed below are included in your package:

• Futaba CGY760R Gyroscope Unit (with integrated receiver and speed governor)
• Futaba GPB-1 Programming Box
• Connection Cables (as supplied by manufacturer)

4. Product Overview

The Futaba P-GY760R-GBP1 system consists of two primary components: the CGY760R Gyroscope Unit and the GPB-1 Programming Box.

4.1. CGY760R Gyroscope Unit

Figure 4.1.1: Front view of the CGY760R Gyroscope Unit, showing the Futaba logo and model number.

Figure 4.1.2: Side view of the CGY760R Gyroscope Unit, illustrating the various servo and sensor ports (RPM, AIL, ELE, PIT, THR, RUD, ELE2, S.B2, P.BOX).

Figure 4.1.3: Rear view of the CGY760R Gyroscope Unit, showing the CE mark and 'Made in China' label.

The CGY760R is a compact and lightweight unit (37.5 x 26.8 x 16.0 mm, 20.2 g) housed in an aluminum casing for durability and heat dissipation. It integrates a high-performance gyroscope, a multi-protocol receiver, and a sophisticated speed governor.

• Gyro Section: Features proven PID control from the CGY750, supporting multiple mounting orientations.
• Anti-torque (Tail) Control: Compatible with digital (1520uSec / 760uSec) and analog (1520uSec) servos. Offers two adjustment methods: 3D and Sports, with pre-established programs.
• Cyclic Control: Supports F3C and 3D adjustment methods. Compatible with H3-90 / H3-120 / H3-140 / H4-00 / H4-45 swashplate types. Supports digital (1520uSec / 760uSec) and analog (1520uSec) servos.
• Integrated Receiver: Supports FASSTest (18CH / 12CH modes) and T-FHSS AiR protocols. Features antenna diversity with two installed antennas for reliable signal reception.
• Speed Governor: Utilizes a PID control loop for head speeds from 700 RPM to 4000 RPM. Supports digital (1520uSec) and analog (1520uSec) servos. Selectable between governor and limiter modes. Compatible with GV-1 and CGY750 sensors, and an optional rear plate rotation sensor. RPM data can be sent to the transmitter (telemetry function).

4.2. GPB-1 Programming Box

Figure 4.2.1: Front view of the GPB-1 Programming Box, displaying its screen and control buttons.

The GPB-1 Programming Box is an essential tool for configuring and fine-tuning the CGY760R. It provides a user-friendly interface for accessing all settings and parameters, making setup and adjustments straightforward. Settings can also be adjusted via the transmitter.

4.3. System Overview

Figure 4.3.1: The Futaba CGY760R Gyroscope Unit and GPB-1 Programming Box shown together, illustrating their relative sizes.

Figure 4.3.2: The Futaba CGY760R Gyroscope Unit and GPB-1 Programming Box displayed on a dark surface, highlighting their design.

The combination of the CGY760R and GPB-1 offers an all-in-one solution for helicopter flight control, simplifying installation and providing extensive tuning capabilities.

5. Setup

5.1. Physical Installation

Mount the CGY760R gyroscope unit securely to the helicopter chassis using the provided mounting holes. Ensure the mounting surface is flat and free from vibrations. The unit can be mounted in multiple orientations, but the chosen orientation must be configured in the software.

5.2. Wiring Connections

Connect your servos (cyclic, tail, throttle) to the corresponding ports on the CGY760R unit. Connect the GPB-1 programming box to the dedicated P.BOX port. Ensure your power supply is connected to the appropriate receiver input. Refer to the wiring diagram in the full product manual for detailed connections specific to your helicopter setup.

5.3. Initial Configuration with GPB-1

Figure 5.3.1: An individual holding the GPB-1 programming box, demonstrating its use in a field setting alongside a remote control.

Power on your helicopter system. The GPB-1 will automatically connect to the CGY760R. Use the buttons on the GPB-1 to navigate through the setup menus. Key initial settings include:

• Receiver Mode: Select FASSTest (18CH/12CH) or T-FHSS AiR.
• Swashplate Type: Choose the correct swashplate configuration (e.g., H3-120, H4-00).
• Servo Type: Configure for digital (1520uSec / 760uSec) or analog (1520uSec) servos for cyclic and tail.
• Mounting Orientation: Specify how the CGY760R is mounted on the chassis.
• Basic Gyro Settings: Set initial gain values for cyclic and tail.
• Governor Settings: Configure desired head speeds and governor mode (governor or limiter).

Detailed calibration steps for servo endpoints, collective pitch, and tail limits are crucial for proper operation and should be performed meticulously according to the full manual.

6. Operating

6.1. Basic Operation

Once the system is fully set up and calibrated, power on your transmitter first, then the helicopter. Observe the LED indicators on the CGY760R for proper initialization. Ensure all control surfaces respond correctly to transmitter inputs before attempting flight.

6.2. Adjusting Settings During Operation

Figure 6.2.1: Individuals observing an RC helicopter, indicative of flight preparation or post-flight analysis.

The CGY760R allows for real-time adjustments of certain parameters via your Futaba transmitter, particularly gyro gain. For more detailed adjustments, such as changing flight modes (3D/Sports for tail, F3C/3D for cyclic) or fine-tuning governor parameters, use the GPB-1 programming box. It is recommended to make small, incremental adjustments and test the helicopter's response after each change.

• Gyro Gain: Adjust via transmitter for optimal tail and cyclic stability. Increase gain for more stability, decrease if oscillations occur.
• Governor RPM: Use the GPB-1 to set desired head speeds for different flight conditions.
• Flight Modes: Switch between 3D and Sports/F3C modes on the GPB-1 to suit your flying style.

7. Maintenance

Regular maintenance ensures the longevity and reliable performance of your Futaba P-GY760R-GBP1 system.

• Cleaning: Keep the gyroscope unit and programming box clean and free from dust, dirt, and debris. Use a soft, dry cloth. Avoid using solvents or harsh chemicals.
• Inspection: Periodically inspect all wiring and connections for signs of wear, fraying, or loose contacts. Ensure the unit is securely mounted and that no vibrations are being transmitted to it.
• Firmware Updates: Futaba may release firmware updates to improve performance or add new features. Updates can be performed using a CIU2 or CIU3 interface unit (sold separately). Check the official Futaba website for the latest firmware versions and instructions.
• Storage: When not in use, store the unit in a dry, cool place, away from direct sunlight and extreme temperatures.

8. Troubleshooting

This section provides solutions to common issues you might encounter.

9. Specifications

Technical specifications for the Futaba CGY760R Gyroscope Unit:

10. Warranty and Support

For warranty information and technical support, please refer to the official Futaba website or contact your authorized Futaba dealer. Keep your proof of purchase for any warranty claims. Futaba is committed to providing high-quality products and support to its customers.