What is the difference in performance between the three-phase step motor and the two-phase step motor
Now more commonly used stepping motor including reactive stepper motor (VR), permanent magnet stepper motor (PM), hybrid stepping motor (HB) and single-phase stepper motor, etc.
It refers to the number of coils within the motor, which are currently used in two phases, three phases, four phases and five phase stepping motors. Step motor phase number is different, it is apart from the different Angle, the general step of the two-phase motor pitch Angle is 0.9 ° / 1.8 ° and 0.75 ° of three-phase / 1.5 ° and 0.36 ° of five phase / 0.72 °. When the driver is not broken, the user mainly depends on the step of the different phase to meet the Angle of the step. If you use a subdivision drive, the "phase number" will become meaningless, and the user simply changes the score on the drive and can change the step Angle.
The permanent magnet step motor is generally two phases, the torque and volume are small, and the step Angle is usually 7.5 degrees or 15 degrees. The reaction type step motor is generally three-phase, can realize the big torque output, the step Angle usually is 1.5 degrees, but the noise and vibration are very large. The rotor magnetic circuit of the reactive step motor is made of soft magnetic material, and there is a multi-phase excitation winding on the stator, and the torque is generated by the variation of the magnetic conductance. Hybrid stepper motor is a combination of permanent magnet and reactive type. It is divided into two phases and five phases: the Angle of two phases is 1.8 degrees and the Angle is 0.72 degrees. This kind of step motor is the most widely used, and is also the step motor that the segmentation driver chooses
