THE CONTROL SYSTEM OF THE STEPPER MOTOR MOTION WITH POSITIONING ACCURACY VERIFICATION

Abstract eng:
The paper demonstrates the laboratory stand for the stepper motor control. It was developed on the basis of the two-phase stepper hybrid motor with two shaft ends operated as bipolar. For the stand the following Wobit components were used: the stepper motor controller, the programmable trajectory generator for the stepper motor controllers, the rotary encoder, the programmable pulse and speed counter, a power supply designed for the stepper motor controllers, a power supply for the encoder, the pulse counter, and the trajectory generator. The stand was used for the positioning accuracy measurements and on their basis the errors were determined for several motion parameters such as: minimum speed, maximum speed, and acceleration. The tests were made for three values of the basic step division:1/2, 1/8, and 1/16 as well as for different values of the load moment. The stand also allows the implementation of various stepper motor motion trajectories by developing control programs.

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