Stepper Motors Are Commonly Used Terms

Step angle: every angle of a pulse signal when the rotor turns called the step angle. Size step angle can directly affect the precision motor operation;

Holding torque: refers to the stepper motor when powered on but no turn, stator locked rotor torque. It is one of the most important parameters of stepper motors, stepper motor in low speed torque normally closer to holding torque. As the stepper motor output torque constant attenuation with the increasing speed, power output also increases with the speed of change, so keep the torque becomes the measure of stepping motor is one of the most important parameters. For example, when people say 2Nm stepper motors, in the absence of special cases refer to the torque 2Nm stepping motors;

Detent torque: detent torque refers to the case of a stepping motor has no power, stator locked rotor torque. Reaction stepping motors rotor is not permanent magnet material, so it has no torque;

No-load starting frequency: a stepper motor to lose steps start the maximum pulse frequency;

Starting torque-frequency characteristics: given the driving conditions, load inertia is constant, the relationship between start frequency and torque starting torque-frequency characteristics, also known as the pull-in feature.