Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your new DKD Adjustable ONE-LIN Communication Electric Scooter LCD Speedometer Display. Please read this manual thoroughly before use to ensure proper functionality and safety.
Compatibility Notice
This display is designed for use with ONE-LIN signal controllers and is ONLY compatible with Votol or Fardriver controllers. Compatibility with other controller brands or models is not guaranteed and may result in improper function or damage. Please verify your controller's communication protocol before attempting installation.
Setup
Physical Installation
The DKD LCD Speedometer Display comes with a bracket for mounting. Ensure the mounting location on your electric scooter or motorcycle provides clear visibility and protection from direct impact. Refer to the dimensional drawing for precise measurements to ensure proper fitment.
Wiring Instructions
Connect the speedometer to your controller using the provided wiring harness. Ensure all connections are secure and correctly matched according to the diagram below. Incorrect wiring can cause damage to the display or controller.
| Wire Color | Function |
|---|---|
| Green/Black | CAN- |
| Yellow/Red | CAN+ |
| Blue | Head Light |
| Yellow/White | One-Lin Communication |
| Light Blue | Turn Right Signal |
| Orange | Turn Left Signal |
| Purple | Battery Negative |
| Blue/White | 48-96V Battery Positive |
Cable Length: 230mm
Cable Sheath Length: 200mm
Connector Types: DJ7091A-2.8-11 (VIEW A), DJ7091A-2.8-21 (VIEW B)
Operation
Basic Controls
- Left Button: Press to adjust displayed data.
- Right Button: Press to shift between display modes.
- Long-Press Right Button: Exit current menu or setting.
Display Functions
The display provides various indicators and data points for your electric scooter. Refer to the diagram and descriptions below for an understanding of each function.
- Left Turn Signal (Green): Illuminates when the left turn signal is active.
- Indicator Icons:
- Brake Indicator (Exclamation Mark): On when mechanical or electronic brakes are engaged.
- Controller Failure (ECU): On if a controller malfunction is detected.
- Motor Failure (M): On if a Hall sensor fault or motor phase issue occurs.
- Throttle Failure: On if the throttle is faulty or anti-overrunning protection is active.
- Power Consumption Indication: Displays current power usage.
- Right Turn Signal (Green): Illuminates when the right turn signal is active.
- High Beam (Blue): Illuminates when the high beam headlight is active.
- Reverse Charging Indication: On when the vehicle's electronic braking system is regenerating energy back to the battery.
- Gear Position Display: Shows the current gear (1st, 2nd, 3rd gear) based on ONE-LIN communication from the controller.
- Speed Unit (mph, km/h): Indicates the current speed unit, which can be switched.
- Mileage Unit: Displays both km/h and mph simultaneously.
- TRIP: Subtotal mileage, with a minimum resolution of 0.1 KM (0.1 mile).
- ODO: Total accumulated mileage.
- Speed Display: Shows current speed, with a maximum display of 199 km/h or 199 mph and a minimum resolution of 1 km/h (1 mph).
- Voltage and Power Indication: A 10-grid display indicating battery voltage and power level, with data sourced from the Battery Management System (BMS).
Note: Current indicating functions (positions 2 and 5 in some diagrams) are not supported by this version of the DKD display but can be customized for mass orders.
Video Demonstration
Watch this video to see the DKD Speedometer Display in action, demonstrating its various functions and responsiveness.
Video: Demonstration of the DKD Speedometer Display in operation.
Advanced Settings
To access advanced settings, power on the display. After the self-test is complete, press and hold the left button for 10 seconds to enter the background menu. You will then need to enter a password to access specific settings.
- Password 153: Perimeter, Pole Pairs, and Offset Settings
- Set the perimeter (unit in mm). Default is CC 1413 (for an 18-inch tire).
- After setting the perimeter, long-press the right button to enter pole pair number (PL 24-08, default 24 pole pairs) and offset.
- Password 256: Gear Selection
- Set high and low gear (E, S gear) or normal gear display.
- Use '-2' for high and low gear display.
- Use '-0' for normal gear display.
- Password 372: Clear ODO
- Clears the total mileage (ODO). This function is limited to 3 uses.
- Password 856: Voltage Range Selection
- Select the appropriate voltage range: 48V, 60V, 72V, or 96V. This synchronizes with the battery grid number.
- For lithium batteries, the State of Charge (SOC) is automatically detected. If switching from a lithium battery to another battery type, the display must be powered on again for the change to take effect.
- Password 879: Fixed Voltage Calibration
- Allows for fixed voltage calibration corresponding to the selected voltage setting (48V, 60V, 72V, 96V).
- Password 824: Self-Input Voltage Calibration
- Enables manual input for voltage calibration.
- Password 974: km/h / mph Switch Setting
- Toggles the speed unit between kilometers per hour (km/h) and miles per hour (mph).
- Password 928: D Gear Light, N Gear Light Off Setting
- Configures the behavior of the 'D' (Drive) gear light and 'N' (Neutral) gear light.
- Password 919: Overvoltage and Undervoltage Value Change
- Adjusts the threshold values for overvoltage and undervoltage warnings. The first value is for overvoltage, the second for undervoltage.
Troubleshooting
This section provides guidance on common issues and how to interpret warning indicators.
Indicator Light Meanings
- Brake Indicator (Exclamation Mark): If this light is on unexpectedly, check your mechanical and electronic braking systems for proper function.
- Controller Failure (ECU): If this light illuminates, it indicates a problem with your scooter's main controller. Consult your scooter's manual or a qualified technician.
- Motor Failure (M): This light suggests a Hall sensor fault or a missing motor phase. Inspect motor connections and components.
- Throttle Failure: If this light is on, there may be an issue with the throttle mechanism or the anti-overrunning protection system.
Compatibility Issues
As noted in the introduction, this display relies on specific ONE-LIN communication protocols. If your display is not functioning correctly after installation, and you are not using a Votol or Fardriver controller, it is highly likely a compatibility issue. Ensure your controller's communication protocol matches that of the display. Most controllers with different protocols will not match or plug in directly.
Voltage Display Issues
If the voltage display is inaccurate or not updating after a battery change (especially from lithium to another type), ensure you have powered off and restarted the display. If issues persist, use Password 856, 879, or 824 settings to re-calibrate the voltage.
Specifications
| Feature | Specification |
|---|---|
| Speedometer Type | One-LIN protocol / CAN-BUS |
| Battery Voltage | Rated 48V-84V |
| Displayed Data | Speed (KMH/MPH), DC Current, Battery Level, Trip Distance, Fault Display, Head Light, Turning Light, Gear Display |
| Material | Plastic |
| Item Weight | 0.5 kg |
| Item Height | 33 mm |
| Item Width | 94 mm |
| Item Length | 162 mm |
| Placement on Vehicle | Front |
| Origin | Mainland China |
| Manufacturer Part Number | DKD |
| Interchange Part Number | S |
| Special Features | Speedometer |
| High-concerned chemical | None |
| Speed Sensor type | One-Lin |
Maintenance
The DKD LCD Speedometer Display is designed for durability. To ensure its longevity and optimal performance, follow these general maintenance guidelines:
- Cleaning: Use a soft, damp cloth to clean the display surface. Avoid abrasive cleaners or solvents that could damage the screen or casing.
- Protection: While designed for outdoor use, avoid prolonged exposure to extreme weather conditions or direct sunlight when not in use.
- Inspection: Periodically check the wiring connections for any signs of wear, corrosion, or looseness. Ensure the mounting bracket remains secure.
No specific user-serviceable parts are inside the display unit. Do not attempt to open the casing, as this may void your warranty.
User Tips
- Verify Compatibility: Always double-check that your controller uses the ONE-LIN communication protocol and is a Votol or Fardriver model to ensure proper function with this display.
- Primary Function: Remember that the main purpose of this unit is to act as a speedometer, providing essential speed and mileage data.
- Material Note: The display casing is made of plastic. While durable, avoid harsh impacts to prevent damage.
- Function Suitability: Before purchase or installation, carefully review the display's functions to ensure they meet your specific needs.
Warranty and Support
We offer a 1-year warranty for all kits. In the event of a defect or malfunction covered under warranty, the buyer is responsible for the return shipping cost for repair or replacement.
Should you encounter any problems during use, please do not hesitate to contact the seller, YoMoo Moto Store. We are committed to providing support and will do our best to resolve any issues you may experience.
Frequently Asked Questions (FAQ)
- Q: What's its functionality?
- A: Its main function is to act as a speedometer, displaying speed, battery level, trip distance, and other essential data.
- Q: What's the size of it?
- A: Its length is 162mm, height is 33mm, and width is 94mm.
- Q: What's the quality of the material used in it?
- A: It is made of plastic.
