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motion control with profidrive

Created by: adamlahadi at: 10/11/2023 10:38 PM (6 Replies)

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10/11/2023 10:38 PM	Rate (0)
adamlahadi Experienced Member Joined: 10/4/2019 Last visit: 11/17/2023 Posts: 107 Rating: (0)	HI using a G120 sinamics i used the Profidrive in order to control the position in the picture i showed how my system is ,alos how i set the mechanics parameters in the Technologie object,but when Comissioning i don't get a good result for the positioning. am i wrog !!! Attachment pulley final.png (44 Downloads)

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10/12/2023 7:09 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 12/6/2023 Posts: 4339 Rating: (678)	The first question is what does it mean a good positioning result in your case ? And what is actual positioning error ? Next - what is complete architecture of the axis, motor type, where is encoder connected, how a position loop is closed, what is length of the belt, load torque, belt elongation under load, can the belt slip on the wheels ?
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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10/12/2023 1:56 PM
adamlahadi Experienced Member Joined: 10/4/2019 Last visit: 11/17/2023 Posts: 107 Rating: (0)
	Last edited by: adamlahadi at: 10/12/2023 13:58:45
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10/12/2023 1:56 PM	Rate (0)
adamlahadi Experienced Member Joined: 10/4/2019 Last visit: 11/17/2023 Posts: 107 Rating: (0)	jacek d The first question is what does it mean a good positioning result in your case ? And what is actual positioning error ? Next - what is complete architecture of the axis, motor type, where is encoder connected, how a position loop is closed, what is length of the belt, load torque, belt elongation under load, can the belt slip on the wheels ? when i aske for a 100mm displacement i get 23mm even in low speed the load can be negligible. Attachment PXL_20231012_111654919-min.jpg (30 Downloads)
	Last edited by: adamlahadi at: 10/12/2023 14:06:03
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10/12/2023 2:42 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 12/6/2023 Posts: 4339 Rating: (678)	That's sad to hear. However with the details you revealed I doubt if anyone can solve your problem.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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10/12/2023 5:01 PM	Rate (0)
adamlahadi Experienced Member Joined: 10/4/2019 Last visit: 11/17/2023 Posts: 107 Rating: (0)	jacek d That's sad to hear. However with the details you revealed I doubt if anyone can solve your problem. hi friend this is my program about the pullies 1st pulley attached to motor 40teeth 3 pitch so i tried 403=120mm 2nd pulley attached to encode(1000ppr) 40teeth 2pitch 402=80mm Attachment Motion_Control_01_20231012_1759.zip (27 Downloads)
	Last edited by: adamlahadi at: 10/12/2023 17:03:33
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10/12/2023 8:35 PM	Rate (0)
adamlahadi Experienced Member Joined: 10/4/2019 Last visit: 11/17/2023 Posts: 107 Rating: (0)	i don't have an explanation to this but under basic parameters /encoder i changed A/B count fourfold to A/B count then t works well i returned to A/B fourfold also worked well

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