1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your JRAHK Brushless DC (BLDC) E-bike Controller Kit. This kit is designed to enhance the performance of electric bicycles and scooters, offering a range of voltage and power compatibility. Please read this manual thoroughly before installation and use to ensure proper function and safety.
The JRAHK BLDC Controller Kit features a dual-mode design, an XT60 power connector for easier installation, and is available in both Sine Wave (FOC) and Square Wave controller types. It is engineered for silent, power-saving, and powerful operation with strong heat dissipation capabilities.
2. Product Specifications
| Feature | Specification |
|---|---|
| Brand | JRAHK |
| Type | Controller Kit |
| Material | Aluminium alloy |
| Voltage Range | 36V / 48V / 52V / 60V / 72V / 84V |
| Motor Power | 1000W - 2000W |
| Current Limit | 34A - 40A |
| Product Weight | 0.939 kg |
| Max Controller Size | 211mm x 88mm x 48mm (8.307 in x 3.46 in x 1.89 in) |
| Controller Type | Sine mode (FOC), Square wave mode, No Hall Mode |
| Display Selection | No protocol, SM protocol display |
| Protocol Type | No protocol, UART |
The kit is designed for a single motor setup. Using it with two motors is not supported as they cannot be connected to each other.
Image: Table detailing controller specifications including voltage, current, motor power, display selection, protocol type, and controller type, along with error codes.
3. Package Contents
Your JRAHK BLDC E-bike Controller Kit typically includes the following components:
- BLDC Controller (Red, Aluminium alloy casing)
- LCD Display (with key switch)
- Accelerator (Throttle)
- Necessary wiring harnesses for connection
Image: Overview of the JRAHK BLDC Controller Kit, showing the controller, LCD display, and throttle.
Image: The controller kit in its packaging, indicating a total weight of 939g.
4. Setup and Installation
Careful installation is crucial for the safe and effective operation of your e-bike controller kit. Refer to the wiring diagram below for correct connections.
4.1 Wiring Diagram Overview
Image: Detailed diagram illustrating the various connection points on the JRAHK BLDC Controller.
The diagram labels the following connections:
- Motor phase line
- Battery line
- LCD (with key switch)
- Regenerative braking
- PAS (Pedal Assist System)
- Hall sensor
- Accelerator (Throttle)
- Reverse gear
- Electronic brake
- High level brake
- Low level brake
- Tail light power supply
- Brake light power supply
- Smart learning line
4.2 Important Installation Notes
- Electronic Brake: To protect internal electronic components, the controller's electronic brake voltage is set for 36V-48V systems. If your system voltage is higher than 48V, the electronic brake function cannot be used.
- Motor Compatibility: This controller is designed for single motor applications. It is not compatible with dual motor setups.
- PAS Function: The controller supports PAS functionality, but it requires the use of a 6-magnetic PAS sensor for proper operation.
- Headlight Connection: Ensure proper connection of your headlight to the designated power supply line.
Image: Diagram explaining the electronic brake voltage limitation and showing the electronic brake connector.
Image: Close-up view of the headlight connection to the controller.
5. Operating Instructions
Once installed, the controller kit allows for intuitive operation of your e-bike or scooter.
- Power On/Off: Use the key switch integrated with the LCD display to power the system on or off.
- Throttle Control: The accelerator (throttle) provides variable speed control. Gently twist to increase speed.
- LCD Display: The LCD display provides real-time information such as speed, mileage, battery level, and other operational parameters. Refer to the display's specific manual for detailed navigation and settings.
- Regenerative Braking: If connected and compatible with your system, regenerative braking can help recover energy during deceleration.
- Reverse Gear: If connected, the reverse gear function allows for backward movement.
Image: The controller and LCD display integrated into an e-bike, demonstrating typical usage.
6. Troubleshooting
The LCD display can show error codes to help diagnose issues. If you encounter a problem, check the error code displayed and refer to the table below:
| Error Code | Description |
|---|---|
| E01 | Motor failure |
| E02 | Throttle failure |
| E03 | Controller failure |
| E04 | Brake power off |
| E05 | Under voltage protection |
| E06 | Communication failure: The instrument cannot receive the output of the controller. |
| E07 | Communication failure: The controller cannot receive the output of the instrument. |
If an error persists after checking connections and components, please contact customer support.
7. Maintenance
To ensure the longevity and optimal performance of your JRAHK BLDC E-bike Controller Kit, follow these general maintenance guidelines:
- Keep Clean: Regularly clean the controller and display unit to prevent dust and dirt buildup.
- Inspect Wiring: Periodically check all wiring connections for looseness or damage. Ensure all cables are securely fastened.
- Protection: The wiring is designed to be soft, waterproof, wear-resistant, and weatherproof. However, avoid exposing the controller and wiring to extreme conditions or direct impacts.
- Storage: Store the e-bike or scooter in a dry, cool place when not in use.
Image: Close-up of the wiring, highlighting its soft, waterproof, and wear-resistant properties.
8. User Tips
- PAS Sensor: If you plan to use the Pedal Assist System, ensure you have a 6-magnetic PAS sensor for compatibility with this controller.
- Electronic Brake Voltage: Be mindful of the electronic brake's voltage limitation (36V-48V). If your battery voltage exceeds 48V, the electronic brake will not function.
- Single Motor Use: This controller is designed for a single motor. Do not attempt to connect it to multiple motors.
9. Warranty and Support
For any installation problems, quality issues, or technical assistance, please contact customer service. Our support team is available to assist you.
Image: Graphic indicating customer support availability for installation and quality problems.
10. Safety Information
⚠ WARNING: Potential Fire Risk
Please strictly follow the instruction manual for charging and storage of your e-bike battery and related components to prevent potential fire risks. Improper handling can lead to serious injury or property damage.
- Always ensure all connections are secure before operating the e-bike.
- Do not modify the controller or its components, as this may void any warranty and create safety hazards.
- Keep the controller away from water and extreme temperatures.
- If you notice any unusual behavior, sounds, or smells from the controller, immediately power off the system and disconnect the battery.