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Need to sync (gear) one of my axis to an absolute encoder

Created by: AutoGen_5045471 at: 3/18/2022 1:53 AM (3 Replies)

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3/18/2022 1:53 AM	Rate (0)
AutoGen_5045471 Regular Member Joined: 9/22/2020 Last visit: 8/19/2022 Posts: 15 Rating: (0)	My question was split from a previous thread hence the lack of context. I am editing it now. I need to sync one axis of my machine with an external encoder. I am using the Axis Function block and the LMCBasic Library. I am using the command 16#0000_0101 to gear lock the axis but the manual mentions 'The executeGearIn command does not result in axis motion (master at standstill)' So How do I move the axis now? Original Post: I have a similar application in which I need to sync (gear) one of my axis to an absolute encoder. I just need to sync the speed. I'm using the gearIn command 16#0000_0101. The manual mentions that gearIn command does not result in axis motion, so what do I do next? How do I start the axis? Thanks ------------------------------------------------------------------------------------------ Split from How to use GearingIN (relative / absolute) of LMCBasic library ?.
	Last edited by: Jen_Moderator at: 03/18/2022 13:12:23 New subject after splitting Last edited by: AutoGen_5045471 at: 03/18/2022 17:01:34
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3/18/2022 10:18 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/18/2024 Posts: 4795 Rating: (733)	AutoGen_5045471 I have a similar application in which I need to sync (gear) one of my axis to an absolute encoder. I just need to sync the speed. I'm using the gearIn command 16#0000_0101. The manual mentions that gearIn command does not result in axis motion, so what do I do next? How do I start the axis? What do you mean by "a similar application" ? Do you also use LMCBasic ?
	Last edited by: jacek d at: 03/18/2022 10:19:18 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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3/18/2022 4:56 PM	Rate (0)
AutoGen_5045471 Regular Member Joined: 9/22/2020 Last visit: 8/19/2022 Posts: 15 Rating: (0)	Yes, I am using LMC basic. I am using the command 16#0000_0101 to gear lock the axis but the manual mentions 'The executeGearIn command does not result in axis motion (master at standstill)' So How do I move the axis now?

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3/21/2022 1:55 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 11/18/2024 Posts: 5941 Rating: (816)	Hello, it should be possible with relative gearing. You can do a test with virtual axis. 2.2.1 Gearing Relative gearing With relative gearing (gearingType:=RELATIVE), the synchronous operation occurs relative to the synchronization position on the master value and slave value sides. gearingType:=RELATIVE synchronizingMode:=IMMEDIATELY 2.2.5 Synchronization https://support.industry.siemens.com/cs/de/en/view/109801519
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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