1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GREENTIME Dual Drive 48/60/72V 3000W Sine Wave Brushless DC Motor Controller and SW900 LCD Display. This system is designed to enhance the performance of electric scooters and e-bikes, offering efficient power delivery and comprehensive monitoring.
2. Safety Information
- Fire Risk: Please be aware of potential fire risks. Strictly follow all instructions in this manual for charging and storage of your battery and related components.
- Electrical Safety: Always disconnect power before making any electrical connections or performing maintenance. Ensure all wiring is correctly insulated and secured to prevent short circuits.
- Professional Installation: If you are unsure about any installation steps, seek assistance from a qualified technician.
- Compatibility: This sine wave controller requires motors with functional Hall sensors. It will not operate with sensorless motors or motors where Hall sensors are broken.
3. Specifications
| Feature | Detail |
|---|---|
| Brand Name | EVFITTING |
| Type | Controller |
| Rated Voltage | 48V / 60V / 72V |
| Low Voltage Cutoff | 41V / 52V + 0.5V (depending on selected voltage) |
| Rated Power | 3000W (1500W * 2 motors) |
| Limit Current | 45A * 2 ± 1A |
| Controller Dimensions (Approx.) | 175mm (Length) x 150mm (Width) x 60mm (Height) |
| Origin | Mainland China |
4. Package Contents
Your package should contain the following items:
- 1x GREENTIME Dual Drive Sine Wave Brushless DC Motor Controller
- 1x SW900 LCD Display
Please inspect all components for any damage upon receipt. If any items are missing or damaged, contact your seller immediately.
5. Setup and Installation
Careful installation is crucial for the proper functioning of your controller and display. Follow these steps and refer to the wiring diagrams provided.
5.1 Important Pre-installation Notes
- Before first use, each motor must undergo a self-learning process.
- This controller is a sine wave type and requires motors with functional Hall sensors. It is not compatible with sensorless motors or motors with broken Hall sensors.
- The controller and LCD display must be connected to the motor Hall sensor and throttle valve for operation.
5.2 Controller Dimensions
5.3 Wiring Diagram
Refer to the following diagram for connecting the controller to your e-bike/scooter components. Ensure all connections are secure and correctly matched.
Key Connection Points:
- Motor: Connect the main motor phase wires (usually thick wires).
- Hall: Connect the motor's Hall sensor wires.
- Start Soft/Hard: Wires for selecting the motor start mode.
- Learning: Self-learning wires for motor calibration.
- Reverse: Connection for reverse function.
- Display: Connects to the SW900 LCD display.
- Alarm: For alarm system connection.
- Brake Lamp: For brake light connection.
- Battery: Main power input from the battery.
- Single and Dual Drive/Switching: Wires for toggling between single and dual motor operation.
- Throttle: Connects to the throttle input.
- Double Low Brake: For low-level brake signal input.
5.4 Light and LCD Connector Wiring
Specific connections for the light and LCD display are detailed below:
- Light Connector:
- Brown wire: Connect to Lamp Positive (+)
- White wire: Connect to Lamp Negative (-)
Important: The lamp voltage must be the same as your battery voltage!
- LCD Connector: Connect the dedicated LCD connector to your SW900 display.
5.5 Self-Learning Function
The self-learning function is essential for the controller to adapt to your motor's characteristics. This function can only be activated and used when the Pedal Assist System (PAS) setting on your display is configured to level 2 or above.
6. Operating Instructions
6.1 SW900 Display Functions
The SW900 display provides real-time information about your ride, including:
- Speed (Km/h)
- Odometer (ODO)
- Trip Distance
- Power Output (WATT)
- Battery Level
- PAS Level (MODE ECO)
6.2 Throttle Usage
Please note that the throttle function of the SW900 display and any external throttle connected directly to the controller cannot operate simultaneously. Choose one method for throttle input.
6.3 Speed Limit
The system allows for speed limits to be applied, which can be utilized for both pedal assist (PAS) and throttle operation.
6.4 Single/Dual Drive Switching
Utilize the dedicated wiring for 'Single and dual drive/switching' as shown in the wiring diagram (Image 3) to toggle between operating one or both motors.
6.5 Start Mode (Soft/Hard)
The controller offers 'Start Soft' and 'Start Hard' modes. Connect the corresponding wires as indicated in the wiring diagram (Image 3) to select your preferred acceleration profile.
7. Maintenance
- Connection Integrity: Regularly check all electrical connections to ensure they are tight and free from corrosion. Loose connections can lead to intermittent operation or damage.
- Wiring Inspection: Periodically inspect all wiring for signs of wear, fraying, or damage. Replace any compromised wires immediately.
- Cleanliness: Keep the controller and display clean and free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning. Avoid using harsh chemicals or excessive water.
- Ventilation: Ensure the controller has adequate airflow to prevent overheating, especially during prolonged use or high power output.
- Storage: When not in use for extended periods, store the e-bike/scooter in a dry, temperate environment.
8. Troubleshooting
If you encounter issues with your GREENTIME controller and display, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to display or motor | Loose battery connection, main power wire disconnected, blown fuse (if applicable). | Check battery connections. Ensure main power wires are securely connected. Inspect for any fuses and replace if necessary. |
| Motor not responding or erratic operation | Incorrect Hall sensor connection, faulty Hall sensors, motor is sensorless, throttle issue. | Verify Hall sensor wiring. Ensure your motor has working Hall sensors. Check throttle connections and functionality. Perform self-learning if not done or if motor was changed. |
| Self-learning function not working | PAS level set too low. | Ensure the PAS setting on your display is configured to level 2 or above before attempting self-learning. |
| Throttle not working correctly | Conflict between display throttle and external throttle. | Ensure only one throttle input (either from the display or an external throttle) is connected and active at a time. |
| Lights not working | Incorrect wiring, lamp voltage mismatch. | Check light connector wiring (Brown to positive, White to negative). Verify that the lamp voltage matches the battery voltage. |
9. User Tips
- For optimal performance and to avoid issues, ensure your motor has working Hall sensors, as this sine wave controller is not compatible with sensorless motors or those with damaged Hall sensors.
- When first setting up, utilize the self-learning function for each motor to calibrate the system correctly. This is a critical step for smooth operation.
- If upgrading your battery, confirm compatibility with the controller's rated voltage range (48V/60V/72V) to ensure proper function and prevent damage.
- When connecting lights, ensure the lamp voltage matches your battery voltage to prevent electrical issues and ensure proper illumination.
10. Warranty and Support
For any technical assistance, warranty claims, or support inquiries, please contact the seller or manufacturer directly. Always refer to your purchase documentation for specific warranty terms and contact information.
Disclaimer: Please be aware of potential fire risks and strictly follow the instruction manual for charging and storage of all components.
