GREENTIME GT-X5 BLDC Electric Scooter/E-bike Controller and Smart LCD User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your GREENTIME GT-X5 BLDC Electric Scooter/E-bike Controller and Smart LCD set. Designed for electric scooters and e-bikes, this system offers efficient power management and intuitive display functionality. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.

2. Specifications

3. Package Contents

The package typically includes the following components:

• GREENTIME 48V-72V 3000W 80A BLDC Electric Scooter/E-bike Brushless Controller
• GT-X5 Smart LCD Display

4. Safety Information

Always prioritize safety when working with electrical components. Improper installation or use can lead to serious injury or damage to the product.

• Ensure the power source is disconnected before performing any installation or maintenance.
• Verify that the battery voltage matches the rated voltage range of the controller (48V-72V). Using a battery outside this range, such as 84V, is not supported and can damage the controller.
• Avoid exposing the controller and display to water or extreme temperatures.
• Seek professional assistance if you are unsure about any installation steps.

5. Setup and Installation

Careful wiring is crucial for the proper functioning of your e-bike/scooter system. Refer to the wiring diagrams below for correct connections.

5.1 General Wiring Connections

The controller features various connectors for different functions. Ensure each connection is secure and correctly matched:

• H-brake / L-brake: High-level and Low-level brake signals.
• Alarm: Connection for alarm system.
• Throttle: Connects to the throttle mechanism.
• Reverse: For reverse function.
• Hall: Connects to the motor's Hall sensors.
• Display: Connects to the GT-X5 Smart LCD Display.
• Learning: Self-learn wires for initial setup.
• PAS: Pedal Assist System connector.
• 3 Speed: For speed mode selection.
• Battery: Main power input from the battery.
• Motor: Output to the motor.

Important: This controller and LCD display require connection to both the motor hall sensor and the throttle for proper operation.

5.2 Light Connector Wiring

For connecting a light:

• Connect the Brown wire to the Lamp Positive (+).
• Connect the White wire to the Lamp Negative (-).

Note: The lamp voltage must be the same as the battery voltage.

5.3 Self-Learn Function

The controller includes self-learn wires. This function can only be used when the PAS (Pedal Assist System) is set to level 2 or higher. Connect the self-learn wires as indicated in the diagram to initiate the learning process for optimal motor synchronization.

6. Operation

The GT-X5 Smart LCD Display provides essential information and control over your e-bike/scooter.

• Display Information: The LCD shows current speed (Km/h), PAS level (1-5), and battery charge status.
• Speed Settings: The standard LCD and controller sets offer 1-5 speed levels for both pedal assist and throttle.
• Throttle Usage: Note that the throttle connected to the display and the throttle connected directly to the controller cannot operate simultaneously. Choose one method for throttle control.

7. Maintenance

To ensure the longevity and reliable performance of your controller and display:

• Keep the components clean and free from dust and debris.
• Regularly check all wire connections for tightness and signs of wear or corrosion.
• Avoid harsh impacts or dropping the controller and display.
• Store the e-bike/scooter in a dry environment when not in use.

8. Troubleshooting

This section addresses common issues you might encounter:

• No Power to Display/Motor: Check all battery and motor connections. Ensure the battery is charged and within the 48V-72V operating range.
• Motor Not Responding: Verify that the motor hall sensor and throttle are correctly connected. Check for any loose wires in the main wiring harness.
• Unusual Noise During Startup: The controller is designed for super low noise operation. If you experience unusual noise, check motor connections and consider re-running the self-learn function.
• Under-voltage Protection Activated: If the battery voltage drops below 40V ± 0.5V, the controller will enter under-voltage protection mode. Recharge or replace the battery.
• Over-current Protection Activated: This indicates excessive current draw. Check for motor short circuits or excessive load. Reduce load or inspect motor/wiring.

9. User Tips

• Battery Compatibility: The controller is designed for 48V-72V batteries. Using batteries with higher voltages, such as 84V, is not recommended and may cause irreversible damage to the unit. Always confirm your battery's voltage before connecting.
• PAS Settings: For the self-learn function to work correctly, ensure your Pedal Assist System (PAS) is configured to level 2 or higher.
• Throttle Configuration: Decide whether to use the throttle connected to the display or the one connected directly to the controller, as they cannot function simultaneously.

10. Warranty and Support

For warranty claims or technical support, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt as proof of purchase. This product is designed for specific voltage and power ratings; use outside these parameters may void your warranty.