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JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E

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 JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E

       JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E

Application Notes:
1. Confirm motor voltage and power parameters, ensuring they don't exceed the range specified by the driver board.

2. JYQD_V8.5E is a dedicated driver board for DC brushless sensorless motors. Not all three - phase motors can be directly used.
    For poor driving effects (e.g., startup jitter, reverse rotation, high - speed over - current, unstable speed, reduced efficiency,
   failure to start under load), adjust individual component parameters on the driver board according to actual conditions for
   optimal performance. 

3. The JYQD_V8.5E is a bare board. For motors under 60W, normal ventilation suffices; for those over 60W,
    forced cooling with a heat sink is required (mind insulation, see installation method below).

4. The JYQD_V8.5E lacks reverse - connection protection. Reversing the power supply will permanently damage the board.
    Caution is necessary during application.

5. The 5V output port on the driver board is not for external electrical devices. It's only for external potentiometers and switches
    on this board for speed adjustment and direction change.

6. The M terminal on the JYQD_V8.5E outputs motor speed pulses (push - pull output), with a maximum current of less than 5mA. 

                                      JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E
                                             Driver Board Diagram

Wiring Diagram:
       JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E

1. Control Ports (Right)  
● 5V — Internal output voltage of the driver board.  
  M — Motor speed pulse signal output port (5V pulse signal).  
  Z/F — Forward/reverse control port. Connect to 5V (high level) or leave unconnected for rotation in one direction;
               connect to 0V (low level) or ground for rotation in the opposite direction.  
  VR — Speed control port. Analog voltage speed regulation (0.1V–5V), with linear speed adjustment from low to high.
              PWM speed control requires a common ground with the driver board.  
  GND — Ground for internal control of the driver board.  

2. Power Ports (Left)  
 MA — One of the three-phase motor lines.  
 MB — One of the three-phase motor lines.  
  MC — One of the three-phase motor lines. 
 P- — DC power supply negative (-).  
 P+ — DC power supply positive (+).  

3. Notes:  
 Motor wires should not be excessively long. The driver board relies on back electromotive force (BEMF) detection.
    Long wires may cause signal interference.  
 Control ports use a 2.54mm pitch connector. Power ports use a 3.96mm pitch connector.  
 When adding a heat sink or installing the driver board, ensure proper insulation to avoid electrical issues.

Dimensional Drawing
JUYI 18-50V Motor Controller with rpm Signal O.V/L.V Protection JYQD-V8.5E

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