1. Introduction
The Wishiot RDS51150 is a high-performance 150KG digital servo designed for demanding applications such as robotic arms, industrial automation, and 1/5 scale RC vehicles. It features a robust full metal gear construction, IP66 waterproof rating, and offers a 270-degree rotation range for precise control. This manual provides essential information for the proper setup, operation, and maintenance of your servo.
Key Features:
- High Torque Output: Up to 173kg·cm at 12.6V, suitable for heavy-duty applications.
- Wide Operating Voltage: Compatible with 9-12.6V power sources.
- Durable Construction: Full metal gears and CNC aluminum mid-case ensure longevity and reliability.
- Waterproof & Dustproof: IP66 rated for protection against water and dust ingress.
- Precise Control: Digital servo with PWM control system for accurate positioning.
- Adjustable Rotation: Supports 180° or 270° running degrees based on pulse width.
2. Package Contents
Verify that all items listed below are included in your package:
- 1 x RDS51150 Digital Metal Robotic Servo
- 1 x Long U-shaped metal bracket
- 1 x Short U-shaped metal bracket
- 2 x Metal circle disks
- Assorted mounting screws and accessories
3. Setup and Assembly
Follow these steps to properly install and connect your servo.
3.1 Mounting the Servo
The servo can be mounted using the provided U-shaped metal brackets. Ensure the servo is securely fastened to your application's frame or structure to prevent movement during operation.
For detailed assembly of the U-shaped bracket to a similar servo, refer to the following video:
3.2 Wiring Connection
Connect the servo's 3-pin connector to your control board or receiver. The standard wiring color code is:
- Brown/Black: Ground (GND)
- Red: Power (VCC)
- Orange/White: Signal (PWM)
Ensure the power supply is within the recommended operating voltage range of 9-12.6V.
4. Operating Instructions
The RDS51150 servo operates using a Pulse Width Modulation (PWM) control system. The pulse width determines the servo's position.
4.1 PWM Control
- Pulse Width Range: 500μsec to 2500μsec
- Neutral Position: 1500μsec
- Running Degree: 180° or 270° (when 500~2500μsec)
- Dead Band Width: 3μsec
- Operating Frequency: 50-330Hz
- Rotating Direction: Counter-clockwise (when 500~2500μsec)
4.2 Operational Testing
Observe the servo's movement and responsiveness during testing. Ensure it operates smoothly across its full range of motion without binding or excessive noise.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your servo.
- Cleaning: Regularly clean the exterior of the servo to remove dust and debris.
- Waterproof Rating: The servo is IP66 rated, meaning it is protected against powerful water jets and dust. While it can withstand splashes and rain, prolonged submersion is not recommended unless specifically designed for it.
- Gear Inspection: Periodically inspect the metal gears for any signs of wear or damage. Apply compatible grease if necessary.
- Connection Check: Ensure all wiring connections are secure and free from corrosion.
6. Troubleshooting
If you encounter issues with your servo, refer to the following common problems and solutions:
- Servo Not Responding:
- Check power supply connections and ensure voltage is within 9-12.6V.
- Verify signal wire connection to the control board/receiver.
- Ensure the control signal (PWM) is being sent correctly.
- Inspect for any physical obstructions preventing movement.
- Inconsistent Movement or Jitter:
- Check for loose connections or damaged wiring.
- Ensure the power supply can provide sufficient current under load.
- Verify the control signal is stable and within the specified pulse width range.
- Inspect gears for wear or debris.
- Servo Fails Under Load:
- Ensure the applied load does not exceed the servo's stall torque rating (150kg·cm at 10V, 165kg·cm at 12V, 173kg·cm at 12.6V).
- Verify the power supply can deliver the required stall current (up to 8.3A at 12.6V). Insufficient power can lead to failure under heavy loads.
- Check for mechanical binding in the system that might increase the effective load on the servo.
7. Specifications
Detailed technical specifications for the Wishiot RDS51150 servo:
| Category | Item | Specification |
|---|---|---|
| Environmental Conditions | Storage Temperature Range | -30℃～80℃ |
| Operating Temperature Range | -15℃～70℃ | |
| Operating Voltage Range | 9-12.6V | |
| Mechanical | Size | 65 x 30 x 48 mm |
| Weight | 163g | |
| Gear Ratio | 357 | |
| Bearing Type | Double bearing | |
| Electrical (at 10V / 12V / 12.6V) | Idle Current (at stopped) | 4mA / 5mA / 6mA |
| Operating Speed (at no load) | 0.24sec/60° / 0.21sec/60° / 0.19sec/60° | |
| Stall Torque (at locked) | 150kg·cm / 165kg·cm / 173kg·cm | |
| Stall Current (at locked) | 7.4A / 8.0A / 8.3A | |
| Control | Control System | PWM (Pulse Width Modification) |
| Pulse Width Range | 500~2500μsec | |
| Neutral Position | 1500μsec | |
| Running Degree | 180° or 270° (when 500~2500μsec) | |
| Operating Frequency | 50-330Hz |
8. Warranty and Support
Wishiot products are manufactured to high-quality standards. For warranty information or technical support, please contact Wishiot customer service through the retailer where the product was purchased or visit the official Wishiot website. Please retain your proof of purchase for warranty claims.
For any questions, you can typically find a "Contact Seller" or "Ask a question" option on the product page of your retailer.
