1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your FOCAN LH100 E-bike Display Thumb Throttle. Designed for electric bikes and scooters, this 2-in-1 unit integrates an LCD display with a thumb throttle, supporting various voltage systems from 24V to 60V.
2. Key Features
- Integrated Design: Combines an LCD display and thumb throttle into a single unit.
- Wide Compatibility: Supports 24V, 36V, 48V, 52V, and 60V E-bike systems (voltage adjustable via P03 setting).
- Durable Construction: Made from high-quality ABS material, lightweight, waterproof, and designed for long service life. The transparent window is high-hardness acrylic, equivalent to toughened glass.
- Clear Display: Large LCD screen with backlight ensures data visibility even in dark environments.
- Easy Operation: Simple installation and intuitive key operation for quick access to functions.
- Handlebar Fit: Designed for standard 22.2mm (0.9in) handlebars.
3. Specifications
| Attribute | Value |
|---|---|
| Type | LCD Display Thumb Throttle |
| Model | LH100 |
| Brand | FOCAN |
| Voltage Compatibility | 24V, 36V, 48V, 60V (Adjustable via P03 setting) |
| Color | Black |
| Material | ABS Plastic + Acrylic |
| Operating Temperature | -20°C to 45°C |
| Handlebar Diameter | Φ22.2mm (0.9in) |
| Plug Type | Waterproof 6Pin Male Plug + 6pin female to SM converter cable |
| Cable Length | Main cable: 25 ± 2cm; Converter cable: 150 ± 2cm |
| Communication Protocol | UART NO.2 |
| Display Functions | Speed Display, Battery Level Display, Error Indication, Total Mileage, Single Mileage |
| Item Weight | 190g |
| Item Dimensions (L x W x H) | 129mm x 60mm x 35mm |
4. Package Contents
The package typically includes:
- 1 x LH100 LCD Display Thumb Throttle Unit
5. Installation Guide
- Handlebar Mounting:
Mount the LH100 display and thumb throttle unit onto your E-bike's handlebar. Ensure it is securely fastened to a standard Φ22.2mm (0.9in) handlebar. Refer to Figure 3 for visual guidance.
Figure 3: LH100 Mounted on Handlebar - Electrical Connection:
Connect the LH100 unit to your E-bike controller using the provided waterproof 6Pin male plug. If your controller requires a different connection type, use the 6pin female to SM converter cable. Ensure all connections are firm and correct.
Important Compatibility Note:
This product operates on the UART NO.2 communication protocol. It must be used with an E-bike controller that supports the same UART NO.2 communication protocol. Incompatible protocols will result in an "Error Core E10 (Communications Receiving Failure)" message on the LCD screen, and the unit will not function correctly.
Figure 4: Julet Connector Wiring Diagram
6. Operation
- Power On/Off: Press and hold the Power button (red button with power symbol) to turn the display on or off.
- Display Functions: The LCD screen intuitively displays various data:
- Current Speed
- Battery Level
- Error Indication (e.g., E10 for communication failure)
- Total Mileage (ODO)
- Single Trip Mileage (TRIP)
- Mode Button: Use the "MODE" button to cycle through different display modes or settings.
- Voltage Adjustment (P03 Setting): The display supports 24V, 36V, 48V, and 60V systems. The specific voltage setting (P03) can be adjusted directly on the screen. Refer to your E-bike controller manual or the display's advanced settings for instructions on how to access and change P03.
- Thumb Throttle: The integrated thumb throttle allows for speed control. Gently press the lever with your thumb to engage the motor and control acceleration.
- Backlight: The display features a backlight for clear visibility in low-light conditions.
7. Care and Maintenance
- Cleaning: Wipe the display and throttle unit with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the ABS plastic or acrylic screen.
- Water Resistance: The unit is waterproof, but avoid submerging it in water or exposing it to high-pressure water jets.
- Storage: When not in use for extended periods, store the E-bike in a dry, cool place away from direct sunlight.
- Cable Inspection: Periodically check all cables and connectors for any signs of wear, damage, or loose connections.
8. Troubleshooting
- Problem: Display shows "Error Core E10 (Communications Receiving Failure)"
- Cause: This error indicates an incompatibility in the communication protocol between the LH100 display and your E-bike's controller.
- Solution: Ensure that your E-bike controller supports the UART NO.2 communication protocol. If it does not, the LH100 display will not be compatible. Verify the communication protocol of your controller before use.
- Problem: Display is dim or unreadable
- Cause: Low battery or backlight setting.
- Solution: Check your E-bike's battery level. Ensure the backlight is enabled and adjusted to an appropriate brightness level (if adjustable via settings).
- Problem: Throttle is unresponsive
- Cause: Loose connection or internal fault.
- Solution: Check the cable connections to the throttle and controller. If connections are secure and the problem persists, contact support.
9. User Tips
No specific user tips were available from reviews or Q&A. Always ensure your E-bike's battery is adequately charged for optimal performance of the display and throttle.
10. Warranty and Support
For warranty information or technical support, please refer to the seller's policies or contact the FOCAS Ebike Accessories Store directly. Keep your purchase receipt for any warranty claims.