Introduction of multiple speed regulation methods of adjustable speed three-phase DC brushless water

1. PWM speed regulation (adjust the flow rate, adjust the head)

For this function, the brushless DC water pump needs to draw 2 wires from the control circuit board, one is the ground wire, the other is the PWM signal input wire, the PWM signal frequency is between 50-400HZ (according to customer requirements),and the amplitude is 5V

2. Analog signal 0-5V speed regulation (adjust flow, adjust head)

This function requires the DC brushless water pump to draw 2 wires from the control circuit board, one is the ground wire, and the other is the analog 0-5V volage signnal input wire, which can realixa linear speed adjustment between 0-5V (adjust the flow rate and adjust the head)

3. Manual speed regulation (adjust the flow rate, adjust the head)

This function requires the DC brushless water pump to draw 3 wires from the control circuit board, one ground wire, one positive 12V power supply terminal, and the other is the speed control signal input wire. The 12v and ground wires are connected to both ends respectively, and the speed control signal wire Connect to the middle terminal of the potentiometer.

4. Input voltage speed regulation (adjust flow, adjust head)

The speed can be adjusted by directly adjusting the size of the input voltage, and the voltage adjustment range is 12-24V