1. Introduction
This manual provides essential information for the safe and efficient use of your Brainpower W900-6 E-bike Motor Controller. This intelligent controller is designed for electric bicycles, managing power delivery to the motor. Please read this manual thoroughly before installation and operation.
2. Safety Information
- Fire Risk: Please be aware of potential fire risks associated with electrical components. Always follow charging and storage instructions carefully.
- Professional Installation: Due to the complexity of e-bike electrical systems, professional installation is highly recommended. Incorrect wiring can lead to damage, malfunction, or safety hazards.
- Power Disconnection: Always disconnect power from the e-bike battery before performing any installation, maintenance, or inspection of the controller or associated wiring.
- Environmental Conditions: Avoid exposing the controller to extreme temperatures, moisture, or corrosive environments.
3. Specifications
| Feature | Specification |
|---|---|
| Model | W900-6 |
| Type | E-bike Motor Controller |
| Voltage | DC 48V |
| Lower Voltage Cut-off | DC 42V |
| Current Limiting | 28A |
| Power | 750W |
| Rated Working Current | 6-25A |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1μA |
| Working Temperature | -20℃ to 60℃ |
| Storage Temperature | -30℃ to 70℃ |
| Brake Degree | Low |
| Angle | 120/60 |
| High-concerned chemical | None |
| Origin | Mainland China |
4. Installation Guide
The Brainpower W900-6 motor controller is designed for integration into electric bicycle systems. Installation requires careful attention to wiring connections. It is strongly recommended that installation be performed by a qualified technician or an experienced individual familiar with e-bike electrical systems.
4.1 General Wiring Overview
The controller features multiple wiring harnesses for various e-bike components. These typically include connections for:
- Battery power input (main power)
- Motor phase wires (usually three thick wires)
- Hall sensor wires (for brushless motors)
- Throttle input
- Brake levers (often with cut-off function)
- Display/control panel
- Pedal Assist Sensor (PAS)
- Lights and other accessories (if supported)
Important: Ensure all connections are secure and correctly matched according to your e-bike's specific wiring diagram. Incorrect connections can damage the controller, motor, or battery.
4.2 Visual Reference for Wiring
Refer to the images for a visual understanding of the controller and its various wire connections. Always consult your e-bike's specific wiring diagram for precise connection points.
5. Operating Instructions
Once the controller is correctly installed and connected to your e-bike's battery, motor, and control components, operation is typically straightforward:
- Power On: Turn on your e-bike's main power switch (usually on the battery or display unit). The display should illuminate, indicating the system is active.
- Throttle/PAS: Use the throttle or pedal assist system (PAS) to engage the motor. The controller will regulate power delivery based on your input and the selected assist level.
- Braking: Activating the brake levers will typically cut power to the motor, ensuring safe stopping. The controller supports a 'low degree brake' function.
- Power Off: Always turn off the e-bike's main power switch after use to conserve battery life and prevent accidental activation.
6. Maintenance
To ensure the longevity and optimal performance of your Brainpower W900-6 controller, follow these maintenance guidelines:
- Keep Clean and Dry: Regularly clean the exterior of the controller to prevent dust and dirt buildup. Ensure it remains dry and protected from water ingress.
- Inspect Connections: Periodically check all wiring connections for tightness and signs of corrosion or damage. Loose connections can lead to intermittent power or component failure.
- Avoid Overheating: Ensure the controller is mounted in a location with adequate airflow to prevent overheating, especially during prolonged or high-power usage.
- Storage: When storing the e-bike for extended periods, ensure the battery is disconnected and the controller is kept in a dry, temperature-controlled environment.
7. Troubleshooting
If you encounter issues with your Brainpower W900-6 controller, consider the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not responding | Loose wiring, low battery, faulty throttle/PAS, motor issue | Check all connections, ensure battery is charged, test throttle/PAS, inspect motor. |
| Intermittent power | Loose connections, damaged wiring, controller overheating | Inspect and secure all wiring. Allow controller to cool if hot. |
| E-bike powers on but no motor assist | Brake cut-off engaged, faulty Hall sensors, motor phase wire issue | Ensure brake levers are not engaged. Check motor Hall sensor and phase wire connections. |
| Controller gets excessively hot | Overload, poor ventilation, internal fault | Reduce load on the motor. Ensure controller has adequate airflow. If problem persists, seek professional help. |
If these steps do not resolve the issue, please contact customer support for further assistance.
8. Warranty and Support
The seller strives to provide high-quality products. If you receive a defective or damaged product, please contact the seller immediately. Returns for product defects or damage are typically accepted within 15 days of receipt. Returned items must be in their original condition.
For any questions or issues not covered in this manual, please feel free to contact the seller directly. When contacting support, please provide your order number and, if applicable, images or videos of the defective product to facilitate a quicker resolution.
9. User Tips
- Customized Product: As this is a customized product, it is crucial to contact the seller after placing your order to provide specific details about your e-bike. This ensures compatibility and proper configuration.
- Wiring Diagrams: Always refer to the specific wiring diagram provided by your e-bike manufacturer or the seller for accurate installation. Do not guess connections.
- Initial Testing: After installation, perform a low-speed test in a safe environment to ensure all functions (throttle, brakes, display) are working correctly before full use.
