1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your ENGWE DC48V E-bike Motor Controller, model JH4AZ2347DZDSY. This intelligent controller is designed for electric bicycles, offering features such as power assist, three-speed control, anti-theft, cruise control, and low brake functionality. As this is a customized product, specific wiring and detailed setup instructions should be obtained directly from the seller to ensure proper and safe operation.
2. Safety Information
Please read and understand all safety warnings and instructions before installing or operating the controller. Failure to do so may result in property damage, injury, or death.
- Fire Risk: Always be mindful of potential fire risks, especially during charging and storage of the e-bike battery. Ensure proper ventilation and use only compatible charging equipment.
- Professional Installation: Due to the customized nature of this product, installation should ideally be performed by a qualified technician or with direct guidance from the seller. Incorrect wiring can lead to damage or malfunction.
- Water and Moisture: Protect the controller from water ingress and excessive moisture. While designed for outdoor use, direct exposure to heavy rain or submersion can cause damage.
- Physical Damage: Avoid dropping, striking, or otherwise physically damaging the controller.
- Unauthorized Modification: Do not attempt to open the casing, cut wires, or modify the controller in any way. Unauthorized modifications will void the warranty and may create safety hazards.
- Voltage Compatibility: Ensure your e-bike's battery and motor are compatible with the DC48V specification of this controller.
3. Product Overview
The ENGWE JH4AZ2347DZDSY controller is housed in a durable metal casing with various color-coded wires and connectors for integration into your e-bike system.
Figure 3.1: Front view of the ENGWE DC48V E-bike Motor Controller, showing the main unit and numerous connected wires.
Figure 3.2: Close-up view of the product label, detailing model number, voltage, current, functions, and warranty information.
The label on the controller provides key specifications and warnings:
- Model: JH48V6G (also identified as JH4AZ2347DZDSY)
- Voltage: DC48V
- Current: 15 ± 1A
- Functions: Power assist, Three-speed, Anti-theft, Cruise, Low brake
- Undervoltage Protection: 39 ± 1V
- Warning: Man-made damage, water ingress, cut wires, open casing, etc., are not covered by warranty.
4. Specifications
| Feature | Specification |
|---|---|
| Product Name | E-bike Intelligent Controller |
| Model Number | JH4AZ2347DZDSY (also JH48V6G) |
| Brand | ENGWE |
| Type | Controller |
| Nominal Voltage | DC48V |
| Nominal Current | 15 ± 1A (Title mentions 17A, refer to seller for exact rating) |
| Rated Working Current | 6~25A |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1μA |
| Undervoltage Protection | 39 ± 1V |
| Working Temperature | -20℃ ~ 60℃ |
| Storage Temperature | -30℃ ~ 70℃ |
| Origin | Mainland China |
5. Setup and Installation
IMPORTANT: This is a customized product. For proper and safe installation, it is crucial to contact the seller immediately after purchase to obtain the specific wiring diagram and detailed instructions tailored to your controller and e-bike model. Generic wiring diagrams may not be compatible and could lead to damage or malfunction.
General steps for controller installation typically include (but are not limited to):
- Power Disconnection: Ensure the e-bike battery is completely disconnected before starting any installation work.
- Mounting: Securely mount the controller in a protected location on your e-bike, away from direct impact, excessive heat, and moisture. Ensure adequate ventilation.
- Wiring Connections: Carefully connect all wires according to the specific wiring diagram provided by the seller. This typically includes connections for:
- Battery (Power Input)
- Motor (Power Output)
- Throttle
- Brake Levers (with cut-off sensors)
- Pedal Assist Sensor (PAS)
- Display/Control Panel
- Lights (if supported)
- Anti-theft system (if applicable)
- Double-Check Connections: Before reconnecting the battery, meticulously verify all connections to ensure they are correct, secure, and free from short circuits.
- Initial Power-Up: Reconnect the battery and perform an initial power-up test. Observe for any unusual behavior, sounds, or smells.
Figure 5.1: The controller with its array of color-coded wires and connectors, highlighting the complexity of installation without a specific diagram.
6. Operating Instructions
Once correctly installed and powered on, your ENGWE controller enables various functionalities for your e-bike. The exact operation may depend on your e-bike's display and control panel.
- Power Assist: This function provides motor assistance when you pedal, making riding easier, especially uphill or against wind. The level of assistance is typically adjustable via your e-bike's display.
- Three-Speed Control: Allows you to select between different power output levels (e.g., Low, Medium, High) to match your riding conditions and desired speed. This is usually controlled by buttons on your handlebar display.
- Anti-theft: If connected to a compatible anti-theft system, this feature can lock the motor or activate an alarm to deter theft. Refer to your e-bike's specific anti-theft system instructions.
- Cruise Control: This feature allows the e-bike to maintain a constant speed without continuous throttle input. Activation typically involves holding the throttle or a specific button for a few seconds at the desired speed.
- Low Brake: This refers to a brake cut-off function, where applying the brakes immediately cuts power to the motor, enhancing safety. Ensure your brake levers are equipped with compatible sensors.
7. Maintenance
Proper maintenance ensures the longevity and reliable performance of your controller.
- Regular Inspection: Periodically check all wiring connections for tightness and signs of wear or corrosion.
- Cleaning: Keep the controller casing clean and free from dust, dirt, and debris. Use a soft, dry cloth. Avoid using water or harsh chemicals.
- Environmental Protection: While riding, try to avoid deep puddles or extremely dusty conditions. When storing the e-bike, ensure the controller is in a dry, temperate environment.
- Avoid Overheating: Ensure the controller has adequate airflow, especially during prolonged use or in hot weather, to prevent overheating.
- No User Serviceable Parts: The controller contains no user-serviceable parts. Do not attempt to open or repair the unit yourself.
8. Troubleshooting
If you encounter issues with your controller, consider the following basic troubleshooting steps:
- No Power:
- Check if the battery is charged and properly connected.
- Inspect the main power cables for any visible damage or loose connections.
- Ensure the e-bike's power switch is in the "ON" position.
- Motor Not Responding:
- Verify throttle and PAS sensor connections.
- Check brake lever sensors; sometimes a stuck brake sensor can prevent motor activation.
- Ensure the motor cables are securely connected to the controller.
- Intermittent Operation:
- Inspect all connections for intermittent contact.
- Check for signs of water ingress or corrosion on connectors.
- Error Codes: If your e-bike display shows an error code, consult your e-bike's display manual or contact the seller with the specific code.
If these steps do not resolve the issue, or if you suspect a fault with the controller, please contact the seller for further assistance. Do not attempt to open the controller casing, as this will void the warranty.
9. User Tips
- Obtain Wiring Diagram: As this is a customized controller, always request and follow the specific wiring diagram from your seller for installation. This is critical for correct functionality and to avoid damage.
- Verify Compatibility: Before purchasing or installing, confirm with the seller that this DC48V controller is fully compatible with your e-bike's motor, battery, and other components.
10. Warranty and Support
The manufacturer provides a warranty for this product under specific conditions. Please note the following:
- Warranty Exclusions: The warranty does not cover damage caused by human factors, water ingress, cut wires, opening the casing, or other unauthorized modifications.
- Returns: If you return the goods within 15 days of receipt due to product defects, damage, or any fault of the seller (not due to personal preference or misuse), a refund will be issued. Returned items must be in their original condition.
- Support: For any questions, technical assistance, or warranty claims, please contact the seller directly. Provide your order number and, if applicable, images or videos of any defective products.
