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virtual axis variable cycle time

Created by: Ziemens at: 6/24/2011 8:53 AM (27 Replies)

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6/30/2011 4:19 PM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	The motion task is started once in the backgroundtask, and not stopped. So the “Switch output cam on” mcc command is always running.
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6/30/2011 4:34 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 9/12/2025 Posts: 5116 Rating: (768)	Change the program, so the command is called once and the program is finished. Then check your output with the scope.
	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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7/1/2011 6:52 PM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	we did as you mentioned, but the problem remaining. it is really frustrating!
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7/2/2011 7:02 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 9/12/2025 Posts: 5116 Rating: (768)	Well, I do not have much experience with output cams on the on-board IOs. But we use TM17 and it works like a hell. If I don't forget I'll make some test on Monday with D435 and see the results.
	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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8/4/2011 11:51 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	help...!
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8/5/2011 2:48 PM	Rate (0)
DenisMor Posts: 344 Rating: (50)	Try configuring the high speed output cam signal in the real axis (setpoint, not actual) vs virtual axis and compare results. My expectation that the real axis configuration will give you 125us accuracy as the Sinamics hardware uses additional data from the real axis in Sinamics to extrapolate the exact time/position to trigger the signal.
DenisMor Posts: 344 Rating: (50)
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9/26/2011 4:44 PM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	DenisMor Try configuring the high speed output cam signal in the real axis (setpoint, not actual) vs virtual axis and compare results. My expectation that the real axis configuration will give you 125us accuracy as the Sinamics hardware uses additional data from the real axis in Sinamics to extrapolate the exact time/position to trigger the signal. hy sir, we tried your suggestion, but still same problem: the cam signal is dependent on the simotion scan cycle 7 ms. anyone has another idea? Thanks
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6/13/2012 10:45 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	still not working! i wonder if someone can send an example program for onboard fast output cam with virtual axis...
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