Kenntsh 52V 25A Brushless Motor Controller and LCD Display Panel User Manual

1. Introduction

Thank you for choosing the Kenntsh 52V 25A Brushless Motor Controller and LCD Display Panel. This system is designed to provide efficient power management and clear operational feedback for your electric bike or scooter. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your product.

2. Safety Information

Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, serious injury, or property damage.

• Always disconnect the battery power before performing any installation, maintenance, or wiring adjustments.
• Ensure all connections are secure and properly insulated to prevent short circuits.
• Do not expose the controller or display to water, excessive moisture, or extreme temperatures.
• Handle electronic components with care to avoid damage from static electricity.
• If you are unsure about any part of the installation process, seek assistance from a qualified technician.
• Keep children and pets away from the product during installation and operation.

3. Package Contents

Please check the package contents upon receipt to ensure all items are present and undamaged:

• 2 x Kenntsh 52V 25A Brushless Motor Controllers
• 1 x LCD Display Panel

4. Product Overview

4.1 Brushless Motor Controller

The brushless motor controller is the central unit for managing power delivery to your electric motor. It features multiple cable connections for power, motor phases, sensors, and peripheral devices like the display, brakes, and lights.

Figure 1: Kenntsh 52V 25A Brushless Motor Controllers

This image shows two brushless motor controllers, each with a silver casing and numerous colored wires for various connections, including power, motor phases, and accessory inputs.

4.2 LCD Display Panel

The LCD display panel provides real-time information about your electric vehicle's status, including speed, gear, battery level, and operational mode. It also features control buttons for power and function selection, and a convenient USB charging port.

Figure 2: Kenntsh LCD Display Panel

This image displays the LCD panel with a colorful screen showing digital speed (003 km/h), battery charge indicator, and time (00:01). It has a power button and a mode button on the right side.

5. Setup and Installation

Careful wiring is crucial for the correct operation of your electric bike/scooter. Refer to the diagrams below and ensure all connections are made securely.

5.1 Controller A Wiring Diagram Overview

This diagram illustrates the primary connections for Controller A, labeling each cable's function.

Figure 3: Controller A Wiring Diagram with Labeled Cables

This image provides a clear view of the various cables extending from Controller A, each labeled with its specific function: Speed limiting, Meter cable, Brake sensor, Brake light, Front light, Power cable, and Motor cable.

5.2 Detailed Wiring Connections for Controller A and B

This comprehensive diagram details the connections for both Controller A and Controller B, including wire colors and connector types. Ensure corresponding plugs are connected correctly.

Figure 4: Detailed Wiring Diagram for Controller A and B

This complex diagram illustrates the full wiring scheme for two controllers (A and B). It shows connections for power cords (XT60), motor lines (Yellow, Blue, Green), instrument (display), controller docking, auxiliary power supply lights, brake signal lights, brake break signals, and speed limit switches, with specific wire colors and connector types indicated.

Wiring Guide:

• Power Cord (XT60): Connect the thick red wire (power supply) to +52V and the thick black wire to P-.
• Motor Line: Connect Green to 'U', Yellow to 'V', and Blue to 'W' on the motor.
• Instrument (Display): Connect the Yellow, Blue, and Green wires from the controller to the corresponding wires on the display. The Black and Orange wires are also part of this connection.
• Controller Docking: Connect the Blue, Green, and Orange wires between controllers or to other docking points.
• Auxiliary Power Supply Lights: Connect Red (VCC) and Black (P-) directly to the battery. Do not control this via the instrument.
• Brake Signal Light: Connect the White and Black wires.
• Brake Break Signal: Connect the White and Black wires.
• Speed Limit Switch: Connect the Black and Gray wires.

Important: Ensure all connections are firm and correctly matched. Incorrect wiring can damage the controller or other components.

6. Operating Instructions

6.1 LCD Display Functions

The LCD display provides essential information and control for your electric vehicle. Familiarize yourself with its features for optimal use.

Figure 5: LCD Display Panel Features and Charging Port

This image highlights the key features of the LCD display: Speed, Gear, Function display area, Power button, Function button. It also shows the internal colored wires and points to the charger port located on the reverse side of the throttle.

Display Parameters and Controls:

• Speed: Displays current riding speed (e.g., km/h).
• Gear: Indicates the current power assist level or gear.
• Function: Shows various operational parameters or modes.
• Power Button: Press and hold to turn the display and system ON/OFF. A short press may cycle through display information.
• Function Button (Mode): Used to switch between different display modes or adjust settings (e.g., trip distance, total distance, voltage).
• Charging Port: Located on the reverse side of the throttle. Plug in a USB cable to charge your devices.

Basic Operation:

1. Power On: Press and hold the Power button until the display illuminates.
2. Adjust Gear/Mode: Use the Function button to cycle through available gears or modes.
3. Power Off: Press and hold the Power button until the display turns off.

7. Maintenance

Proper maintenance ensures the longevity and reliable operation of your controller and display.

• Keep Clean: Regularly wipe the display and controller with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Check Connections: Periodically inspect all wiring connections for tightness and signs of wear or corrosion.
• Avoid Water Exposure: Protect the controller and display from direct water spray or submersion.
• Temperature: Operate and store the components within recommended temperature ranges to prevent damage.
• Physical Damage: Avoid dropping or subjecting the components to strong impacts.

8. Troubleshooting

If you encounter issues, refer to the table below for common problems and solutions.

If problems persist after troubleshooting, please contact the seller for further assistance.

9. Specifications

10. Warranty and Support

No specific warranty information is provided with this product. For any warranty claims, technical support, or service inquiries, please contact the original seller or retailer from whom you purchased this product. Please retain your proof of purchase for any potential claims.