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:
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JUYI Hall Sensor Rectangle 3 Pahse bldc Motor Controller with Technical Support Images
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