Application Instructions:

1. Confirm the voltage and power parameters of the motor, which must not exceed the range specified by this drive board.

2. This drive board is suitable for 120-degree Hall-effect DC brushless motors. Note that the wiring sequences of motors

from different manufacturers may not directly correspond to the drive board’s wiring sequence. Customers can adjust the

Hall wiring sequence or the three-phase motor wire sequence according to actual conditions to achieve optimal driving

performance (adjustment instructions are provided in the attached documents).

3. The JYQD_V7.3E2 drive board is a bare board. For motors with a power rating below 100W, forced cooling is not required,

but normal ventilation must be ensured.

4. The 5V output port on the drive board is prohibited from connecting external electrical devices. It is only suitable for

connecting external potentiometers and switches on the board for speed regulation and direction change.

5. The "Signa" port on the JYQD_V7.3E2 drive board is the motor speed pulse output signal, with an output current of less

than 5mA.

Diagram Without Heatsink Diagram With Heatsink

WIRING DIAGRAM:

1. Hall Port (Top Left)
GND — Hall Signal Negative Interface
Hc — Hall Signal Hc
Hb — Hall Signal Hb
Ha — Hall Signal Ha
5V — Hall Signal Positive Interface

2. Control Port (Bottom Left)
GND — Internal Control Ground of the Drive Board.
VR — Speed Control Port. Analog voltage speed regulation (0V-5V), linear speed adjustment from low to high.

PWM speed regulation requires common ground with the drive board.
Z/F — Forward/Reverse Control Port. Connect to 5V or leave floating for one direction, connect to GND for the

opposite direction.
Signal — Motor Speed Pulse Signal Output Port, 5V pulse signal.
EL — Enable Control. Connect to 5V to allow operation, connect to GND to disable operation.
5V — Internal 5V output of the control board, only for powering potentiometers and switches for speed regulation

and direction change.

3. Power Port (Right)
VCC — DC Power Positive (+)
GND — DC Power Negative (-)
MC — One of the Motor Three-Phase Wires
MB — One of the Motor Three-Phase Wires
MA — One of the Motor Three-Phase Wires

4. Note: Motor phase wires and Hall wires should not be too long, as excessive length may cause signal interference issues.
5. Control port uses a 2.54mm pitch, while the power port uses a 3.96mm pitch.
6. When adding a heat sink or installing the board, pay attention to the insulation of the drive board's power transistors.

Dimension Drawing:

Shanghai Juyi Electronic Technology Development Co., Ltd established in 2010, Its a high-tech enterprise specializing in research, development, production and sales of brushless motor controller products. Its headquarters and research and development base are established in international economy, finance, trade, shipping, and technology innovation Center - Shanghai.

The company has strong technical and R&D strength. It is a  participant in many military projects and has in-depth cooperation with many domestic large-scale enterprises and government departments.

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The solution will help companies acquire more advanced product technologies and production capabilities, so that enterprises will remain competitive in the fierce market competition and achieve rapid and steady development of the company.

The company has a reasonable structure of talents, has many technical backbones, and has more than one master's degree, bachelor's highmiddle level technical titles. In order to develop intelligent and energy-saving electromechanical automation products that are truly suitable for business needs, the company has entered into cooperation with a foreign control chip manufacturer to customize the unique DC brushless control IC of JY series to provide customers with more flexibility, intelligence and stability. A more cost-effective brushless motor control solution.
 

With the best products, best service and best reputation, JUYI Tech products has been applied in the automobile,textile, packaging, printing, laser, food, woodworking, clothing, plastics, agricultural machinery, gardens, medical, experimental, robotics, military and other mechanical equipments. and achieved brilliant results, completed the supporting services of many large-scale enterprises, and are willing to become your most reliable long-term partner in future!

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