What is the difference between servo motor and stepping motor?
3., high resolution, high precision positioning of 5 phase stepper motor, in the full step level, 0.72 degrees (1 rotation, 500 segmentation), half step level, 0.36 degrees (1 rotation, 1000 segmentation). Stop positioning accuracy is + 3 points (+ 0.05 degrees), so there will be no angle accumulation error.4. stepper motor and AC induction or servo motor, etc., there are considerable differences, and has the following characteristics:Same as input pulse, operated in step mode. High precision positioning can be achieved in open-loop mode. The starting and stopping response is superior. There will be no cumulative angle error when stopping. Because the construction of the motor is simple, it is easy to maintain. To drive the stepper motor, we must have a controller, simply input the pulse wave to the driver, so that the high-precision positioning control can be simply carried out in open-loop mode.
1. angle control, speed control is simpleThe stepper motor is proportional to the input pulse and operates at a step angle of 0.72 degrees at a time.2. high torque, high responseStepper motors, though small in size, can achieve high torque output at low speeds. Therefore, acceleration, responsiveness, frequent starting and stopping can exert a great deal of power.
Stepper motors do not hold power during power failures, so if power is required during power outages, use electromagnetic brake models. With high precision machining of motor, high precision positioning function of stepping motor can be realized. Resolution is dependent on the structure of the motor, the general HYPRID type 5 phase stepper motor for 1 steps, 0.72 degrees accuracy is determined by the machining accuracy of the motor, no load when the stop error accuracy is + 3 points (+ 0.05 degrees).
The following are the characteristics of servo motors and stepper motors:Because of the stepper motor in the exciting state stops, has great retention, so even without the use of mechanical brake can also maintain the stop position (with excitation state is stopped, and the motor current is proportional to the force).
The positioning system, the most commonly used motor is nothing more than a stepping motor and servo motor, the stepper motor can be divided into 2 phases, the 5 phase, micro stepping system, servo motor is mainly divided into DC and AC two servo servo.
