yuandai 36V-48V 350W Brushless DC Motor Controller User Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your yuandai 36V-48V 350W Brushless DC Motor Controller. This controller is designed for use with electric bicycles, e-bikes, and scooters, offering stable speed control and responsive management of braking and direction changes.

The controller is constructed from durable aluminum alloy, ensuring longevity. Its interfaces are clearly labeled for ease of installation and use.

Image 1: The yuandai 36V-48V 350W Brushless DC Motor Controller with various wiring harnesses.

2. Product Specifications

Image 2: Diagram showing the approximate dimensions of the controller (128mm x 72mm x 36mm).

3. Setup and Wiring Instructions

The wiring process for this controller requires careful attention. Please refer to the diagram below and follow the steps precisely. If you encounter any difficulties, please contact customer support.

Image 3: Detailed wiring diagram illustrating each connection point on the controller.

Wiring Connections:

1. Motor Line: Connect the motor lines, matching colors. This connection is essential.
2. Battery Line: Connect the battery lines. The two red wires connect to the battery positive (+), and the black wire connects to the battery negative (-). These connections are essential.
3. Throttle Line: Connect the throttle lines, matching colors.
4. Hall Line: Connect the Hall sensor lines. If your motor does not have a Hall line, this connection is not required.
5. Self-Learning Line: Dock the two self-learning lines together. The wheel will either rotate forward or reverse.
   • If the wheel rotates forward, separate the self-learning lines.
   • If the wheel rotates in reverse, separate the self-learning lines, then dock them together again. If the wheel now rotates forward, separate the self-learning lines.
6. Pointer Meter Line: Connect as needed for display.
7. 3-Speed Line: Connect as needed for speed selection.
8. Anti-theft Alarm Line: Connect as needed for anti-theft functionality.
9. Anti-theft Power Line: Connect as needed for anti-theft power.
10. Low Brake Line: Connect as needed for low-level braking signal.
11. High Brake Line: Connect as needed for high-level braking signal.
12. Cruise Speed Line: Connect as needed for cruise control function.

Other functions can be connected according to your specific requirements and accessories.

4. Operating Instructions

Once properly installed and wired, the controller will provide steady speed and sensitive control for your electric vehicle. The self-learning function helps the controller adapt to your motor's characteristics for optimal performance.

To operate, ensure all connections are secure and the battery is adequately charged. Use the throttle for acceleration and the brake levers to engage the braking system. The controller manages power delivery to the motor based on your input.

5. Maintenance

To ensure the longevity and optimal performance of your yuandai motor controller, follow these maintenance guidelines:

• Keep Dry: Protect the controller from water and excessive moisture. While durable, it is not explicitly rated as waterproof.
• Inspect Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion or damage. Loose connections can lead to intermittent operation or component failure.
• Cleanliness: Keep the controller free from dust, dirt, and debris. Use a soft, dry cloth for cleaning.
• Avoid Physical Damage: Ensure the controller is mounted in a location where it is protected from impacts or physical stress.

6. Troubleshooting

If you experience issues with your motor controller, consider the following troubleshooting steps:

• No Power: Verify that the battery is charged and properly connected. Check the main power lines (red and black) for secure connections.
• Motor Not Responding: Ensure the throttle line is correctly connected. If your motor uses Hall sensors, check the Hall line connections. Re-perform the self-learning procedure if the motor is not spinning or spinning incorrectly.
• Incorrect Wheel Direction: Refer to the self-learning procedure in Section 3 to correct the motor's rotation direction.
• Intermittent Operation: Inspect all wiring for loose connections or damaged insulation.
• Unusual Noises or Overheating: Disconnect power immediately. This could indicate a short circuit or internal component failure.

If troubleshooting steps do not resolve the issue, or if the wiring seems overly complex, it is recommended to seek professional assistance or contact yuandai customer service for support.

7. Warranty Information

Specific warranty details for the yuandai 36V-48V 350W Brushless DC Motor Controller are typically provided at the point of purchase or within the product packaging. Please retain your proof of purchase for any warranty claims.

For information regarding warranty coverage, duration, and procedures, please refer to the documentation included with your product or contact the seller directly.

8. Customer Support

For further assistance, technical inquiries, or to report any issues with your yuandai 36V-48V 350W Brushless DC Motor Controller, please contact the seller or yuandai customer service through the platform where the product was purchased.

When contacting support, please provide your product model, purchase date, and a detailed description of the issue to facilitate a quicker resolution.