What is the stepping angle of a stepper motor? The stepping angle of one of my stepper motors is 0.9. /1.8. What's the degree of a pulse like this? That is, how many pulses does it take to turn around? It's 4 phase.
Intrinsic step angle of motor:It represents a stepping signal of each control system and the angle of rotation of the motor. The factory motor gives a step angle value, such as SL86S2114A type motor is given a value of 0.9 DEG /1.8 DEG (said half step work for 0.9 degrees, the whole step was 1.8 degrees), this step can be called the "inherent motor step angle", it is not necessarily the work of actual motor when the real step angle, angle and drive about real.Phase number of stepping motor:Refers to the number of coils inside the motor, the current commonly used in two-phase, three-phase, four phase, five phase stepper motor. The motor phase number is different, and the step angle is different. The step angle of the general two-phase motor is 0.9 DEG /1.8 degrees, the three-phase is 0.75 DEG /1.5 degrees, and the five phase is 0.36 degrees /0.72 degrees. In the absence of subdivision drive, the user mainly depends on the choice of different number of stepper motors to meet the requirements of their own step angle. If you use a subdivision drive, the number of phases will become meaningless and the user can change the step angle just by changing the fine fraction on the drive.
Generally for two-phase, torque and small size, step angle is generally 7.5 degrees or 15 degrees;The reaction stepping motor is generally three-phase, and can achieve large torque output. The step angle is generally 1.5 degrees, but the noise and vibration are very large. The rotor magnetic path of the reaction stepping motor is made of soft magnetic material, and the stator is provided with a polyphase exciting winding, and the torque is generated by the change of the permeance.Hybrid stepping motors refer to the advantages of mixing permanent magnet and reactive type. It is divided into two phases and five phases: two phase stepping angle is generally 1.8 degrees, while the five phase stepping angle is generally 0.72 degrees. This stepper motor is the most widely used, but also the subdivision of the drive program used stepper motor.
Stepping motor is a kind of actuator that transforms electric pulse into angular displacement. When the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle (called "step"), it is the rotation of the fixed point of the operation step by step. Number of pulses can be controlled by controlling the angular displacement, so as to achieve the purpose of accurate positioning; at the same time by controlling the pulse frequency to control the motor rotation speed and acceleration, so as to achieve the purpose of speed. Stepper motor can be used as a special motor for control. It is widely used in all kinds of open-loop control without the accumulation of error (accuracy 100%).Now more commonly used stepper motor, including reactive stepping motor (VR), permanent magnet stepper motor (PM), hybrid stepping motor (HB) and single-phase stepper motor.
