JRAHK BLDC Dual Drive Square Wave Controller Instruction Manual

Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your JRAHK BLDC Dual Drive Square Wave Controller. Designed for electric bicycles and scooters, this controller offers dual-mode functionality and supports a wide range of voltages and motor powers. Please read this manual thoroughly before installation and operation to ensure safe and efficient use.

Specifications

The JRAHK BLDC Dual Drive Square Wave Controller is a robust component for your electric vehicle. Below are its key specifications:

Feature	Specification
Type	Square Wave Motor Controller
Material	Aluminium alloy
Voltage Range	36V-48V-52V-60V
Motor Power	350W-2000W
Current Limit	18A-40A (Single drive rated: 18A, max 20A; Dual drive rated: 36A, max 40A)
Weight	0.584 kg
Dimensions (L x W x H)	175mm x 55mm x 32mm
Origin	Mainland China

JRAHK BLDC Dual Drive Controller with WXGN200 display and specifications — Figure 1: JRAHK BLDC Dual Drive Controller with WXGN200 display, showing key specifications.

Dimensions of the JRAHK BLDC Dual Drive Controller — Figure 2: Physical dimensions of the controller: 175mm length, 55mm width, 32mm height.

Setup & Installation

Proper installation is crucial for the safe and optimal performance of your controller. Always ensure the power is off before making any connections.

Wiring Connections

The controller features various connection points for different components of your electric bicycle or scooter. Refer to the diagrams below for detailed wiring instructions.

Wiring Diagram Line Connection A for JRAHK BLDC Controller — Figure 3: Line Connection A - Essential connections for controller operation.

Intelligent Identification: Connect this line for automatic motor parameter learning.
Hall Sensor: Connect the Hall sensor wires from your motor.
Motor Phase Line: Connect the three main phase wires from your motor.
Power Line: Connect the main power input from your battery (XT60 connector).

Wiring Diagram Line Connection B for JRAHK BLDC Controller — Figure 4: Line Connection B - Connections for display, brakes, throttle, and other accessories.

Motor Phase Line: (Repeated for clarity, refers to the main motor connections)
LCD: Connect your LCD display unit (e.g., WXGN200/WXGN202).
Low-level Brake: Connect to your low-level brake lever.
PAS (Pedal Assist System): Connect your PAS sensor.
Throttle: Connect your throttle unit.
Reverse: Connect if your system supports a reverse function.
Hall Sensor: (Repeated for clarity, refers to the main motor connections)
Linear Brake: Connect to your linear brake lever.
Brake Light: Connect your brake light.
High-level Brake: Connect to your high-level brake lever.
Tail Light: Connect your tail light.
Smart Learning Line: Used for motor parameter self-learning.

Headlight connection to JRAHK BLDC Controller — Figure 5: Example connection for a headlight to the controller.

Operating Instructions

Once all connections are securely made, you can power on your electric bicycle or scooter. The controller operates in dual mode, providing efficient power delivery for both single and dual motor setups.

The connected LCD display (e.g., WXGN200 or WXGN202) will show real-time information such as speed, battery level, and error codes. Familiarize yourself with your display's specific functions for optimal use.

JRAHK BLDC Dual Drive Controller installed on an electric bicycle — Figure 6: The controller enhances power, driving stability, and flexibility for electric bicycles.

Maintenance

To ensure the longevity and reliable performance of your JRAHK BLDC Dual Drive Controller, follow these maintenance guidelines:

Keep Dry: Protect the controller from water and excessive moisture. While designed for outdoor use, direct exposure to heavy rain or submersion can cause damage.
Clean Connections: Periodically check all wiring connections to ensure they are clean, tight, and free from corrosion. Loose connections can lead to intermittent operation or damage.
Regular Inspection: Visually inspect the controller for any signs of physical damage, such as cracks in the casing or frayed wires. Address any issues promptly.
Avoid Overheating: Ensure the controller has adequate ventilation, especially during prolonged high-power operation, to prevent overheating.

Troubleshooting

If you encounter issues with your controller, the LCD display may show an error code. Refer to the list below to identify and resolve common problems:

JRAHK BLDC Controller Error Codes — Figure 7: Display error codes and their meanings.

E01: Motor failure - Check motor connections, Hall sensors, and motor integrity.
E02: Throttle failure - Inspect throttle wiring and functionality.
E03: Controller failure - This indicates an internal issue with the controller. Contact support.
E04: Brake power off - Check brake lever connections and ensure they are not constantly engaged.
E05: Under voltage protection - Battery voltage is too low. Recharge or replace the battery.
E06: Communication failure (instrument cannot receive output of controller) - Check wiring between the display and controller.
E07: Communication failure (controller cannot receive output of instrument) - Check wiring between the display and controller.

User Tips

Motor Compatibility: This controller is versatile and can be used with both Hall and non-Hall motors.
Color Variation: The red color of the controller may appear different under strong light or sunlight. This is a normal characteristic of the finish.
Battery Voltage: The controller supports voltages from 36V to 60V. Ensure your battery voltage is within this range for proper operation.
Headlight Connection: The controller provides a dedicated connection for a headlight, as shown in Figure 5.

Warranty & Support

For any installation problems, quality issues, or further assistance, please contact JRAHK customer service. Your satisfaction is important to us, and we are always available to help.