The application and applied advantages of stepping motor
Defect 1. It is difficult to operate at a high speed. It's difficult to get a big torque There is no advantage in volume weight, low energy utilization. More than the load, the synchronization will be broken, and vibrations and noise will be emitted at high speed.
The motor's response is determined by the digital input pulse, so the open loop control can be used, which makes the structure of the machine simple and controlled Manufacturing costs; Simply connecting the load directly to the rotor of the motor can also rotate at a very low speed. Because speed is proportional to pulse frequency, there is a wide range of speed.
Advantages of disadvantages The rotation of the motor is proportional to the number of pulses. The maximum torque when the motor is suspended (when the winding is exciting); 3. Due to the precision of each step from three percent to five percent, and would not step error accumulation and has good location accuracy and the next step movement repeatability; Excellent stop and reverse response; Because there is no brush, the reliability is high, so the life of the motor depends only on the life of the bearing.
Advantage: high control accuracy Characteristics: relatively ordinary motor, he can realize open loop control, namely through the drive signal input the pulse number and frequency of the input to achieve the Angle and speed of the stepper motor control, without the feedback signal. But stepping motors are not suitable for use in the same direction for long periods of time, and it is easy to burn the product, even when times are usually short and frequent. Relative servo motor, servo motor internal by installing rotary encoder to realize the feedback control, servo motor torque can be reached than stepper motors, but the price is relatively high, so in the case of torque can meet, recommend using stepper motor. Step motors are used in conjunction with actuators, and many drives support segmentation, which is to achieve a small step Angle and control more accurately Based on the above characteristics, you can determine whether or not it will work for you!
