Feetech SCS15 15KG Dual Axis Serial Bus Servo

Introduction

The Feetech SCS15 is a high-performance 15KG dual-axis serial bus servo designed for various robotic and remote control applications. It features a 180-degree controllable angle, position feedback, and TTL serial communication, making it versatile for complex projects requiring precise control and data monitoring. This manual provides detailed instructions for the proper setup, operation, and maintenance of your SCS15 servo.

Package Contents

Please inspect the package contents upon receipt to ensure all components are present and undamaged. The standard package includes:

• Feetech SCS15 Serial Bus Servo
• Mounting Brackets (typically 2 pieces)
• Servo Horns/Discs (typically 2 pieces)
• Connection Cables (TTL serial bus cable, power cable)
• Assorted Screws for mounting

Image: Overview of the Feetech SCS15 servo and its accompanying accessories, including mounting brackets, cables, and screws.

Image: Close-up of the SCS15 servo, mounting brackets, servo horns, and various screws.

Specifications

The following table details the technical specifications of the Feetech SCS15 servo:

Image: Detailed characteristics and product data table for the SCS15 servo.

Note: Electronic characteristics are based on 6V. 1kg.cm is equivalent to 0.1N.m. The locked torque is the maximum stall torque of the servo system, and 1/3-1/5 of the actual torque is recommended for optimal performance.

Image: Dimensional drawing of the SCS15 servo, showing key measurements for integration.

Image: Dimensional drawing of the servo horn, detailing its dimensions and gear spline (25T).

Setup

1. Physical Installation

1. Attach the provided mounting brackets to the servo using the appropriate screws. Ensure they are securely fastened.
2. Mount the servo assembly to your robot or RC model chassis using the holes on the brackets.
3. Attach the desired servo horn to the output shaft (25T spline) of the servo.

Image: The SCS15 servo securely mounted within a metal bracket.

2. Electrical Connection (TTL Serial Bus)

The SCS15 servo uses a TTL serial bus for communication. Connect the servo to your microcontroller (e.g., Arduino) or control board as follows:

• S (Signal): Connect to the data pin of your microcontroller.
• V (VCC): Connect to the power supply (4.8V-7.4V).
• G (GND): Connect to the ground of your power supply and microcontroller.

For multiple servos, they can be daisy-chained on the same serial bus. Each servo must have a unique ID.

Image: Detailed wiring diagrams showing how to connect multiple SCS/STS serial servos in a URT-1 series and a schematic for connecting a single servo to an Arduino.

The image above illustrates connection diagrams for both a series of 5 servos using a URT-1 adapter and a schematic for connecting a single Feetech SCS/STS serial servo to an Arduino board. Pay close attention to the S (Signal), V (VCC), and G (GND) connections.

Operating Instructions

1. Serial Bus Control

The SCS15 servo can be controlled individually or uniformly via the serial bus. Each servo has a unique ID (ID 0-253) that allows for targeted commands. The highest communication baud rate supported is 1Mbps.

2. Angle Control and Position Feedback

The servo supports a 180-degree rotation angle. You can set the rotation angle and receive real-time position feedback through the TTL serial protocol. This allows for precise control and monitoring of the servo's current position.

3. Software Control

Feetech provides dedicated debugging software that allows you to:

• View movement effects.
• Modify servo parameters (e.g., ID, baud rate, angle limits).
• Test servo functionality.

Refer to the Feetech documentation or support resources for details on using the debugging software and communication protocols.

4. Baud Rate Configuration

The default baud rate is 38400bps, but it can be changed to various speeds including 500K, 250K, 128000, 115200, 76800, 57600, and 1000000bps. Ensure your microcontroller's serial communication matches the servo's configured baud rate.

Maintenance

• Avoid Overload: Do not exceed the specified plugging torque (15kg.cm at 6V) to prevent damage to the servo gears and motor. The recommended actual torque for continuous operation is 1/3 to 1/5 of the maximum stall torque.
• Power Supply: Ensure the power supply voltage is within the 4.8V-7.4V range. Incorrect voltage can lead to malfunction or damage.
• Cleanliness: Keep the servo free from dust, dirt, and moisture.
• Cable Integrity: Regularly check connection cables for wear or damage.
• Temperature: Operate the servo within the specified temperature range (-15°C to 70°C).

Troubleshooting

• Servo Not Responding:
  • Check power connections and ensure correct voltage.
  • Verify serial bus wiring (S, V, G).
  • Confirm the servo ID is unique and correctly addressed in your code.
  • Ensure the baud rate of your controller matches the servo's baud rate.
• Incorrect Angle or Jittery Movement:
  • Check for mechanical obstructions.
  • Ensure the power supply can provide sufficient current, especially for multiple servos.
  • Review your control code for correct angle commands.
  • Consider potential electrical noise on the signal line.
• Overheating:
  • Reduce the load on the servo.
  • Ensure adequate ventilation around the servo.
  • Check for continuous stall conditions.
• No Position Feedback:
  • Verify the serial communication setup for receiving data.
  • Ensure the servo is powered and communicating.

User Tips

• Initial ID Configuration: When using multiple servos, it's often easiest to configure each servo's ID individually before connecting them all to the bus.
• Power Supply Capacity: For applications with multiple servos or high loads, ensure your power supply can deliver sufficient current to avoid brownouts or erratic behavior.
• Software Debugging: Utilize the official Feetech debugging software to test individual servos and fine-tune parameters before integrating them into a larger system.

Certifications

The Feetech SCS15 servo is certified to meet the following standards:

• CE: Conforms to European Union health, safety, and environmental protection standards.
• FCC: Complies with Federal Communications Commission regulations for electronic devices.

Image: Certificates of Conformity for CE and RoHS standards.

Warranty and Support

Wishiot and Feetech are committed to providing high-quality products and support. If you encounter any issues or require assistance, please refer to the following resources:

• Technical Support: Access debugging software, 3D drawings, and engineering support through official channels.
• Documentation: Additional documentation and programming examples may be available on the manufacturer's website.

Image: Overview of available service support, including debugging software, 3D drawings, customer service, and engineer service.