The speed of the step motor and servo motor is respectively
Stepping motor is a kind of actuator that converts electrical impulses into angular displacement. When stepping drive receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle (called "step Angle"), its rotation is based on the Angle of the fixed step by step. It can control the amount of angular displacement by controlling the number of pulses, so as to achieve accurate positioning. At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency to achieve the goal of speed adjustment.
The torque-speed characteristic of different step motor output torque increases with speed decreases, and at a high speed when they fell sharply, so its maximum working speed is in commonly 300 ~ 600 r/min. Ac servo motor for constant torque output, that is, at its rated speed (usually 2000 or 3000 r/min) of less than, can be rated output torque and constant power output above the rated speed for.
The working principle of the servo motor The inside of the servo motor rotor is a permanent magnets, three-phase electric drive control of U/V/W form the electromagnetic field, under the action of rotating rotor in this field, at the same time, motor with encoder feedback signal to drive, drive according to the feedback value compared with the target, adjust the Angle of the rotor rotation.
