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Mesa 7i76e, Use different stepgens for motor forward and reverse

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28 Sep 2022 10:09 #252924 by webutt
Mesa 7i76e, Use different stepgens for motor forward and reverse was created by webutt
I am using servo motors via VFD for my 7i76e. The VFD has inputs Forward pulse and reverse pulse instead of step/dir pins. How should i go about it? Can I configure it somehow?

The VFD being used is MR-J2S-A

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28 Sep 2022 10:44 #252926 by tommylight
Replied by tommylight on topic Mesa 7i76e, Use different stepgens for motor forward and reverse
Edit the hal file, the line with:
loadrt stepgen step_type= 0,0,0
to
loadrt stepgen step_type= 1,1,1
linuxcnc.org/docs/2.8/html/man/man9/stepgen.9.html
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28 Sep 2022 11:20 #252927 by Aciera
Replied by Aciera on topic Mesa 7i76e, Use different stepgens for motor forward and reverse
Also note that those drives can be set to accept Step/Direction signals by setting Parameter 21 accordingly.

dl.mitsubishielectric.com/dl/fa/document...030006/sh030006j.pdf

 
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