Problem in Stepper Motor block Parameters with predefined parametrization
4 views (last 30 days)
Show older comments
I am using the stepper motor block provided in the Simscape toolbox R2020b. I used the predefined parametrization from the provided motors list. The selected motor was Minebea 17PA-KA39B, as seen in the below picture.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1655376/image.png)
From the manufacturer catalog, the motor data are shown in picture 1. The most important are the rated current, 1A, and the holding torque: 610 mN.m. Also, the supply voltage for this motor is 24 V, as seen in picture 2.
The Torque constant is not provided in the motor data, but Matlab provided a value of 606 mN.m/A, as seen in picture 3. It seems this value is calculated as Holding Torque / Rated current = 610 mN.m /1 A, which is about 606 mN.m/A.
I have run a Matlab model with a stepper motor block with Minebea 17PA-KA39B data, and the supply voltage is 24V. The phases currents and Torque are shown in picture 4, and here the differences appear as follows:
1- The Max phase current is 4A, which is 4 times the rated current provided by the manufacturer (1A).
2- The holding torque is 2.424 N.m, which is 4 times the holding torque provided by the manufacturer (606 mN.m).
What is the reason behind these differences?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1655381/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1655386/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1655391/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1655396/image.png)
0 Comments
Answers (0)
See Also
Categories
Find more on Motor Drives in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!