1. Product Overview
The JH48VLD1442GDS is a customized DC brushless motor controller designed for electric bicycles. It provides efficient power management and control for your e-bike's motor, integrating essential functions for a smooth riding experience.
Figure 1: Front view of the JH48VLD1442GDS motor controller, showing multiple wire harnesses and the product label with specifications.
Note: This is a customized product. Please ensure compatibility with your e-bike system before installation.
2. Safety Information
- Fire Risk: Please be aware of potential fire risks associated with electrical components. Always follow proper charging and storage instructions for your e-bike battery and controller.
- Professional Installation: Installation should ideally be performed by a qualified technician to ensure correct wiring and prevent damage to the controller or e-bike.
- Water and Moisture: Keep the controller dry and away from water or excessive moisture to prevent short circuits and damage.
- Voltage Compatibility: Ensure your e-bike's battery voltage matches the controller's specifications (48V DC nominal).
3. Setup and Installation
The JH48VLD1442GDS controller features multiple wire harnesses for various e-bike components. A precise wiring diagram is crucial for correct installation. If a diagram was not provided with your purchase, please contact the seller immediately to obtain one specific to this model.
General Installation Steps (Consult a specific wiring diagram for details):
- Power Disconnection: Before starting any installation, ensure the e-bike's battery is completely disconnected to prevent electrical shock or damage.
- Mounting: Securely mount the controller in a protected area on your e-bike, away from direct impact, water, and excessive heat.
- Motor Connection: Connect the motor phase wires (typically thicker wires, often green, blue, yellow) and Hall sensor wires (smaller wires) from the motor to the corresponding ports on the controller.
- Battery Connection: Connect the main power wires (red for positive, black for negative) from the battery to the controller. Double-check polarity.
- Throttle Connection: Connect the throttle unit to the designated throttle port on the controller. This controller supports a 1.1-4.2V throttle.
- Brake Lever Connection: Connect the electronic brake levers to the controller. This enables the electronic braking function.
- Power Assist (PAS) Sensor: If your e-bike has a Power Assist System, connect its sensor to the appropriate port.
- Display/Panel Connection: Connect your e-bike's display or control panel, if applicable.
- Other Accessories: Connect any other accessories like lights or speed sensors as per the wiring diagram.
- Final Check: Before reconnecting the battery, carefully inspect all connections to ensure they are secure and correctly wired.
Figure 2: Side view of the controller, showing various wire connections.
4. Operating Instructions
Once the controller is correctly installed and the battery is connected, your e-bike should be ready for operation. The controller manages power delivery to the motor based on your input from the throttle and power assist system.
- Power On: Turn on your e-bike's main power switch (if equipped). The display (if present) should illuminate.
- Throttle Control: Gently twist the throttle to engage the motor. The motor speed will increase with more throttle input. The controller is designed for a 1.1-4.2V throttle input.
- Power Assist (PAS): If your e-bike has a PAS, pedaling will activate motor assistance, providing power based on your pedaling effort and the selected assist level (if adjustable via display).
- Electronic Brake: Engaging the brake levers will cut power to the motor and activate the electronic braking function, providing regenerative braking or simply cutting motor power for safety.
- GPS Function: The integrated GPS function may be used for tracking or other smart features, depending on your e-bike's overall system. Refer to your e-bike's main manual for details on GPS functionality.
5. Maintenance
Proper maintenance ensures the longevity and reliable performance of your motor controller.
- Regular Inspection: Periodically check all wire connections for tightness and signs of wear or corrosion.
- Cleaning: Keep the controller's exterior clean and free from dust, dirt, and debris. Use a soft, dry cloth. Avoid using water or cleaning solutions directly on the controller.
- Environmental Protection: Ensure the controller remains protected from extreme temperatures, direct sunlight, and heavy rain.
- Storage: When storing the e-bike for extended periods, especially in cold conditions, ensure the battery is properly maintained and stored according to its own instructions.
6. Troubleshooting
If you encounter issues with your e-bike's motor system, consider the following common troubleshooting steps:
- No Power to Motor:
- Check battery charge level.
- Verify all main power connections (battery to controller) are secure.
- Ensure the e-bike's main power switch is ON.
- Motor Not Responding to Throttle:
- Check throttle cable connection to the controller.
- Inspect throttle unit for damage.
- Intermittent Power/Motor Stuttering:
- Inspect all motor phase wires and Hall sensor wires for loose connections or damage.
- Check for any signs of water ingress into the controller or motor.
- Brakes Not Cutting Power:
- Verify brake lever connections to the controller.
- Ensure brake levers are functioning correctly mechanically.
For complex issues or if basic troubleshooting does not resolve the problem, it is recommended to consult a professional e-bike technician or contact the seller for support.
7. Specifications
| Feature | Specification |
|---|---|
| Model | JH48VLD1442GDS |
| Type | DC Brushless Motor Controller |
| Nominal Voltage | DC 48V |
| Undervoltage Protection | 39V |
| Rated Current | 12A |
| Phase Angle | 120° |
| Throttle Voltage Range | 1.1-4.2V |
| Off-state Leakage Current | <1μA |
| Working Temperature | -20℃ to 60℃ |
| Storage Temperature | -30℃ to 70℃ |
| Functions | Power Assist, Electronic Brake, GPS |
| Origin | Mainland China |
Figure 3: Top view of the controller, showing wire arrangement.
8. Warranty and Support
This product comes with certain guarantees and support options:
- Free Returns: Free returns are available within 90 days of purchase.
- Fast Delivery Guarantee: In case of delivery delays, a coupon code may be provided. Refunds are available if the package is lost or items are damaged during transit, or if delivery is not completed within 30 days.
- Defective Products: If the product is defective upon receipt, do not sign the shipping bill. Take photos of the defective product and contact the seller for a refund or replacement.
- Contacting Support: For any questions, issues, or to obtain a detailed wiring diagram, please contact the seller directly.
Figure 4: General warranty and return information.
9. User Tips
- Wiring Diagram is Key: Always ensure you have the correct and detailed wiring diagram for your specific controller model. This is critical for a successful and safe installation. If not provided, request it from the seller.
- Customization Details: As this is a customized product, confirm all specifications and compatibility details with the seller before installation to avoid any issues.
- Safety First: Adhere strictly to all safety guidelines, especially regarding potential fire risks during charging and storage of e-bike components.