Although the stepper motor heat does not generally affect the life of the motor, it is not necessary for most customers. However, when it is serious, it will bring some negative effects. For example, if the thermal expansion coefficient of each part inside the stepping motor is different, the structural stress changes and the internal air gap changes slightly, which will affect the dynamic response of the stepping motor, and the high speed will simply be out of step. In some cases, it does not allow excessive heating of the stepper motor, such as medical equipment and high-precision testing equipment. Therefore, the necessary control of the heating of the stepper motor should be performed.
There are several reasons for the motor heating:
1. The current set by the driver is larger than the rated current of the motor.
2, the motor speed is too fast
3. The motor's own inertia and positioning torque are large, so even if it is running at medium speed, it will generate heat, but it will not affect the life of the motor. The demagnetization point of the motor is at 130-200 °C, so the motor is normal at 70-90 °C. Generally, there is no problem if it is less than 130 °C. If it really feels overheated, set the current of the drive to 70 of the rated current of the motor. % or so may decrease the speed of the motor.
3. Reason three
As a digital performance component, stepper motor has been widely used in motion control systems. Many users and friends use the time of the stepper motor, feel that the motor has a large heat when working, and have doubts about it. I don't know if this phenomenon is normal. In practice, heat is a common phenomenon of stepper motors, but what kind of heat is normal, and how to minimize the heating of stepper motors?
If you want to buy a vacuum cleaner motor, please pay attention to Small Vacuum Cleaner Motor.
