How to Control DC Vibration Motor Speed?

The brushless DC vibration motor consists of a motor body and a driver and is a typical mechanization product. The star winding of the motor is mostly made into a three-phase symmetrical star connection, which is very similar to the three-phase asynchronous motor. A magnetized permanent magnet is attached to the rotor of the motor. In order to detect the polarity of the motor rotor, a position sensor is installed in the motor. The driver consists of power electronic devices and integrated circuits.

It can accept the start, stop and braking signals of the motor to control the motor, accept the position sensor signal and the forward and reverse signals to control the on-off of each power tube of the inverter bridge, and generate continuous torque; accept the speed command and speed feedback signal, Used to control and adjust the speed and so on. ATO DC vibration motor can be used outdoors, is an ideal choice for applications in mining, electric power, construction, chemicals, medical care, spraying, powder screening, food machinery, electroplating equipment, etc.

In addition to the panel control, the DC brushless motor can also be controlled by an external potentiometer. ATO has DC 12V / 24V vibration motors with power from 10W~100W.

This is a 24V 15W DC brushless vibration motor from ATO. As you can see, it is very small and has a thick mounting base. Different from the AC-type vibration motor with only 2 power lines the brushless DC vibration motor has 3 power lines: blue, brown, and white. 

This is the controller that matches the vibration motor. The nameplate on the top of the controller has wiring instructions.

Pay attention to the power interface of the controller and the motor line interface.

• The back of the controller is the wiring port. Next to the wiring port is its wiring identification, connect the power cord and motor power cord to the terminals. Don't worry, the process is not complicated. Here, this is a 2kΩ(ohm) potentiometer for remote control of vibration motors.
• According to the nameplate instructions it will be connected to +5V, SP, GND. Each wire must be connected in accordance with the nameplate instructions. After the power is on, the ALM light will keep flashing before the motor starts. Then turn the controller on.
• Twist the speed control knob, then the vibration motor will start to vibrate, The higher the speed, the higher the vibration frequency. Similarly, we can use an external potentiometer to adjust the speed. The speed display will be displayed on the LED with a delay. Turn the controller to OFF.

The following video is a detailed description of brushless DC vibration motor speed control.