Stepper motor as you all know stepper motor open-loop control systems will be more convenient to operate, and the price is cheaper, so in domestic are basically used is given priority to with open loop control reactive stepper motor. Although widely used stepping motor, but it does not like ordinary pay (Straight)Flow motor in practice under the conditions of use, and from the beginning to the end of the running speed in a theory of condition, in the motor start frequency limit is greater than the speed of operation, the motor can be run according to the requirement, and can achieve the desired speed. Run to at the end of the trip, also can be sent immediately to complete stop function of the pulse, and makes the motor to stop running. But actual condition is, step motor to complete the limits of the starting rate is low, far cannot satisfy the requirement of high speed. In this kind of operation conditions, to make the speed of the motor to request (Start advance rate) is greater than the limitDirect starting, can attack & other; Throw the step & throughout; Or the status of the echo. And when the motor running to the end, although now immediately stop sending pulse, make it stop, but because of inertia effect, can attack through the end of the phenomenon, namely occurred. Because of inertia effect occurred at phenomenon and render the stepper motor positioning inaccurate main reasons are the following: (1)Requirements of step motor starting velocity through high, far beyond the limit of the stepper motor start frequency, may say is the acceleration is too large, then cause & other; Throw the cloth & throughout; Conditions; (2)Mechanical and electrical machine step motor power could not reach the requirements of the system; (3)Stepping motor in operation may have suffered during the process of interference caused motor positioning inaccurate; (4)The control system of happen error motion controller; (5)Reversing the pulse, one-way accurate operation, after reversing positioning error, and follow the add to the number of reversing the error value is more significant; (6)Software design defects;
