The implicit factors that affect the quality of brushless DC motors are that products inevitably encounter various problems during use, and the same applies to brushless DC motors. Today, Jinyuan will talk about the reasons and solutions for the malfunction of DC brushless motors.
1、 Motor malfunction
A brushless DC motor consists of a rotor and a stator. If the rotor or stator malfunctions and cannot function properly, common faults include the following:
1. Rotor damage or bearing wear: This situation can cause the motor to rotate unevenly and produce loud noise. The solution is to replace the rotor or bearings.
2. Loose or short circuited stator wiring: This situation can cause the motor to fail to start properly or overheat after starting. Check if the stator wiring is loose or short circuited, reconnect or replace the stator.
3. Magnetic pole reversal: Reversing the direction of the magnetic pole can cause the motor to run in the wrong direction or not to rotate. Solve the problem by changing the positive and negative electrode positions of the winding or replacing the motor bracket.
2、 Driver board malfunction
The drive board of the brushless DC motor controls the motor switch. If the drive board malfunctions, the motor cannot function properly. Common faults include the following:
1. Driver board damage: This situation can cause the motor to fail to start or rotate. The solution is to replace the driver board.
2. Missing control signal: This situation can cause the motor to fail to start or rotate normally. Check if the control signal is normal, reconnect or replace the connecting wire or controller.
3、 Power issue
DC brushless motors require a suitable power supply to function properly. If the power supply voltage is insufficient or the current is unstable, the motor cannot operate normally. The solution is to replace the appropriate power supply or check if the power output is stable.
For the fault of the brushless motor not working, according to the above troubleshooting methods, readers can gradually eliminate the fault point and carry out corresponding maintenance operations, so that the brushless motor can work normally.
Today, we introduced the reasons and solutions for the malfunction of
DC brushless motors, including motor faults, drive board faults, and power supply issues. Everyone can gradually identify the fault point based on its specific manifestation, find and solve the problem, so that the motor can work normally.
