Some concepts

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10 May 2009 13:13 #226 by hengfo
Some concepts was created by hengfo
hi,

I am a beginner for EMC2. There are some concepts which are not very clearly explained in the document such like TRAJ_period and Servo_period. I want to increase the sampling frequency in my CNC machine, but I don't know how to change these parameters.

Thank you in advance!

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10 May 2009 14:25 - 10 May 2009 14:27 #229 by BigJohnT
Replied by BigJohnT on topic Re:Some concepts
This is in the Integrators Manual.

www.linuxcnc.org/docview/html//config_in...%5BEMCMOT%5D-section

You should run a latency test before changing the base period.

Is your config a Stepconf Wizard generated one? If so after running the latency test you can run Stepconf again and change your latency test number there.

www.linuxcnc.org/docview/html//config_st...ub:Basic-Information

Why do you want to change the period settings?

John
Last edit: 10 May 2009 14:27 by BigJohnT.

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10 May 2009 15:14 #230 by hengfo
Replied by hengfo on topic Re:Some concepts
Thank you for your reply.
Because I want to increase sampling frequency. I don't know the meaning of TRAJ_period exactly.

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10 May 2009 15:38 #232 by BigJohnT
Replied by BigJohnT on topic Re:Some concepts
Other than the information in the first link and in this link that is all I know about traj_period.

www.linuxcnc.org/docview/html//man/man9/axis.9.html

www.linuxcnc.org/docview/html//man/man9/motion.9.html

John

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