Analysis of common problems with brushless DC motors

1、 Motor burnt out
DC brushless motors are not completely fault free, and one common fault is motor burnout. Possible reasons include overvoltage, overload, overheating, etc. If the motor is found to be burnt out, it is necessary to replace the motor and check whether the relevant circuits are working properly.

2、 Controller malfunction
The controller is a very important component in DC brushless motors, and if there is a malfunction, it will affect the normal operation of the motor. During use, there may be issues such as controller damage causing the motor to fail to start or operate normally. In response to this situation, you can first check the power supply voltage, timing control signal, communication signal, etc. of the controller. If these are all normal and still cannot solve the problem, it may be necessary to replace the controller.

3、 Sensor failure
Another crucial component in a brushless DC motor is the sensor, which can detect information such as the motor's speed and position, thereby controlling the motor's speed and direction. If the sensor fails, it will cause the motor to malfunction. The solution can be to try restarting the system, checking for loose or damaged sensors, and promptly replacing faulty sensors.

4、 Other faults
In addition to the three common faults mentioned above, there may be some minor issues that may occur, such as incorrect motor wiring, unstable motor speed, etc. Motor wiring errors can be resolved by rearranging the motor's wiring; For the problem of unstable speed, it is necessary to check the motor power supply voltage, controller timing control signal, and sensor operation.