control in different ways: stepping motor: by controlling the pulse number control rotation Angle, a pulse interval Angle corresponding to a. Servo motor: through controlling the length of the pulse time workflow control rotation Angle is different: step motor: workflow working for stepper motor general need two pulse: pulse signal pulse and direction. Servo motor, its working process is a switch power supply connection, then connect the servo motor. Low frequency characteristics of different: step motor: low frequency vibration phenomenon is seen at low speeds. Servo motor, running smoothly, even in the low speed also won't appear when the vibration phenomenon. Stepper motor, the 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. Servo motor: for constant force torque output, namely in the rated speed (General is 2000 or 3000 r/min)Less than, rated output torque, in for a constant power output above the rated speed. Overload capacity is different: step motor: generally have no overload capacity. Servo motor: has the strong ability of overload.
