1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the VOTOL EM50S Electric Scooter Controller Kit. The kit includes the EM50S ECU sine wave controller, an N1S ONE-LIN sensor display, and a throttle assembly. Please read this manual thoroughly before installation and operation to ensure proper function and safety.
Figure 1: Complete VOTOL EM50S Controller Kit
2. Kit Contents
The VOTOL EM50S Electric Scooter Controller Kit typically includes the following components:
- 1 x EM50S ECU Sine Wave Controller with USB cable
- 1 x N1S ONE-LIN Sensor Display
- 1 x Throttle Assembly
Figure 2: EM50S Controller with USB Cable and Wiring
3. Specifications
3.1 EM50S ECU Sine Wave Controller
| Feature | Specification |
|---|---|
| Model | EM-50S ECU Sine Wave Controller |
| Available Battery Voltage | 48V-72V |
| Max DC Current | 55A |
| Boost DC Current | 60A |
| Peak Phase Current | 190A |
| Max. Power | 3960W |
| Mosfets Detail | 12 FET |
| Matched Motor Rated Power | 800W-2000W |
| Max. Efficiency | 92% |
| Degree of Waterproof | IP67 |
| Flux Weaking Ratio | 170% |
| Certification | CE, CCC |
| Working Communication | Hall Sensor |
| Net Weight | 955g |
| Size | 200mm x 108mm x 65mm |
| Programmability | Supported via PC |
Figure 3: EM50S Controller Key Specifications
Figure 4: EM50S Controller Dimension Drawing
Figure 5: EM50S Controller Default Settings
3.2 N1S ONE-LIN Sensor Display
- Speed Sensor Type: ONE-LIN
- Units: KMH and MPH can be switched
- Voltage Compatibility: 48V, 60V, 72V, 84V, 96V, 108V Li-ion battery
- Shell Size: 21cm x 11cm x 9cm
- Displayed Data: Speed (Max 188kmh), Voltage, Battery Level, Trip distance, Head lighting, Gear, Fault Display, Turning lighting.
Figure 6: N1S Display with Labeled Indicators
Figure 7: N1S Display Dimensions
Figure 8: N1S Display Mounting Hole Dimensions
4. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your electric scooter. It is recommended that installation be performed by a qualified technician if you are unfamiliar with electric vehicle wiring.
4.1 Controller Wiring
The EM50S controller features various connections for different functions. Refer to the detailed wiring diagram below for proper connections.
Figure 9: EM50S Controller Detailed Wiring Diagram
Default Functions: Hall Plug, Reverse, Low Brake 0V, Throttle (0-5V), High Brake 12V, Ignition, One-line/Hall Meter Wire, Program Port, Three Speed, Sport Model, Parking, Anti-Theft, Regen Charge, Flux Weaken Current.
4.2 Throttle Assembly Wiring
The throttle assembly includes both left and right handles with integrated switches. Connect them according to the following pin definitions and diagrams.
Figure 10: Throttle Handles with Labeled Functions
Figure 11: Left and Right Throttle Wiring Diagram
Figure 12: Throttle Pin Definitions
4.3 N1S Display Wiring
Connect the N1S display to the controller using the ONE-LIN sensor wire. Ensure correct polarity and function connections.
- Red: Positive 48V-96V +
- Black/Green: Negative GND -
- Purple: ONE-LIN Speed Sensor
- Dark Blue: Head Light
- Orange: Left Light
- Light Blue: Right Light
- Black Plug 1: KMH/MPH Switching
- Black Plug 2: Voltage Switching (Default 72V/60V/48V switching; other voltages can be specified during order)
Figure 13: N1S Display Wiring Pin Definitions
5. Operating Instructions
Once the controller, display, and throttle are correctly installed and connected, you can begin operating your electric scooter.
5.1 N1S Display Operation
The N1S display provides real-time information about your scooter's status:
- Speed: Shows current speed in KMH or MPH (up to 188kmh).
- Voltage: Displays the current battery voltage.
- Battery Level: Indicates remaining battery charge.
- Trip Distance: Shows the distance traveled for the current trip.
- Head Lighting: Indicator for headlights.
- Gear: Displays the current gear selection.
- Fault Display: Alerts for system errors.
- Turning Lighting: Indicators for left and right turn signals.
Use the black plugs for switching between KMH/MPH and adjusting voltage settings if needed.
Figure 14: N1S Display in Standby Mode
5.2 Throttle and Control Switches
The throttle controls acceleration, while the integrated switches manage various scooter functions:
- Throttle: Rotate to accelerate.
- 3-Speed Transmission: Select different speed modes.
- Headlights/Fog Lights: Turn on/off lighting.
- Turn Signals: Activate left or right turn indicators.
- Horn: Sound the horn.
- Repair Button: For diagnostic or specific functions (refer to controller programming for details).
- Reverse Button: Engages reverse gear.
- Parking (P file): Activates parking brake or mode.
Video 1: Demonstration of N1S display and throttle operation, showing speed changes and mode switching.
6. Maintenance
The VOTOL EM50S controller and N1S display are designed for durability and are rated IP67 waterproof. Regular maintenance should focus on ensuring all electrical connections remain secure and free from corrosion. Periodically inspect wiring for any signs of wear or damage. Keep the display clean and free from dirt or debris to ensure readability.
For advanced maintenance or repairs, it is recommended to consult a qualified technician or the manufacturer.
7. Troubleshooting
If you encounter issues with your controller kit, consider the following:
- Display Not Working / Incorrect Readings:
- Check all wiring connections to the N1S display for looseness or damage.
- Ensure the correct voltage setting is selected via Black Plug 2 on the display.
- Verify that the ONE-LIN Speed Sensor wire (Purple) is correctly connected.
- Motor Not Responding / Erratic Behavior:
- Inspect all Hall Plug connections and motor phase wires.
- Check the throttle (0-5V) connection.
- Ensure the controller's program port is not actively being used for debugging unless intended.
- General Malfunction:
- Verify battery voltage is within the 48V-72V range.
- Check for any fault codes displayed on the N1S screen.
- Ensure the communication protocols between the controller and display are compatible. Mismatched protocols can prevent proper operation.
8. User Tips
- Compatibility Check: Before purchasing or installing, always verify that the controller and display's communication protocols are compatible with your existing components. Most controllers and displays require matching protocols to function correctly. If unsure, consult with the seller or a specialist.
- Professional Installation: If you lack experience with electric kits or conversions, consider professional installation to avoid potential damage or improper setup.
- Programming: The EM50S controller supports PC programming. Utilize this feature for fine-tuning performance or customizing functions if you have the necessary software and expertise.
9. Warranty and Support
A 1-year warranty is offered for all kits. Please note that the buyer is responsible for return shipping costs for repairs or replacements under warranty.
For any problems encountered during use, please contact the seller for assistance. They will endeavor to help resolve any issues.
Contact Information for Support: WHATSAPP(+8613155138343) or WeChat (SYZ13155138343).
