S-Curve Profile Without Motion Controller , used simple PLC to Create S Curve Motion Profile.
We all know Triangle and trapezoidal motion profile .it is simple formula. But when we talk about S Curve Motion profile then so much calculation come into Picture.
1. Why is needed
In triangular and Trapezoidal Motion profile starting Acceleration is high, jerk is present
And due to jerk material can not handle properly. So many industries require jerk free Motion
2. How to create S curve profile
If we have motion controller, used polynomial CAM. using this we can create motion profile as per our requirement.
3. so my question is can we create S Curve Motion Profile using Simple PLC?
I am also doing R&D on this. and also I got some success but it is not enough .so if anybody doing research on same i would like to know about it. That would be a big help.
i am ready to share my research with you.
Dear Kamlesh Chaudhari
These links might be helpful, have a look:
1. https://www.researchgate.net/profile/Marian-Blejan/publication/349476146_S-curve_motion_profiles_generator_for_hydraulic_actuators/inline/jsViewer/6031ec2ea6fdcc37a83f5139?inViewer=1&pdfJsDownload=1&origin=publication_detail&previewAsPdf=false
2. http://docplayer.net/storage/62/48040680/48040680.pdf
3. https://mdpi-res.com/d_attachment/electronics/electronics-08-00652/article_deploy/electronics-08-00652.pdf
4. https://www.parkermotion.com/manuals/6k/6K_PG_RevB_Chp5_CustomProfiling.pdf
5. https://www.plctalk.net/qanda/showthread.php?t=128789
6. https://www.pmdcorp.com/resources/type/articles/get/mathematics-of-motion-control-profiles-article
7. http://docplayer.net/48040680-Application-note-simple-plc-based-motion-control-for-the-ultra1500.html
Kind Regards
Qamar Ul Islam
You may find many examples for S-curve calculation thro Internet. But simple PLC may have high sampling rate - up to 25ms - which doesn't allowing generate smooth motion profile. The modern motion controllers have significant lower sampling rate from 1ms and down.
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