Getting joint 0 following error?

PCW
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29 Mar 2020 00:56 #161897 by PCW

Replied by PCW on topic Getting joint 0 following error?

You could set ferror and min_ferror to say 1 while testing and tuning

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Catch22
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29 Mar 2020 01:04 #161899 by Catch22

Replied by Catch22 on topic Getting joint 0 following error?

I will give that a try, thanks again.

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andypugh
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29 Mar 2020 14:00 #161969 by andypugh

Replied by andypugh on topic Getting joint 0 following error?

You might also want to remove all the lines like:
net y-vel-cmd => pid.y.command-deriv

I don't think that is the problem, but there is an issue with connecting an empty signal to that pin in some versions of LinuxCNC.

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Catch22
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29 Mar 2020 14:48 #161972 by Catch22

Replied by Catch22 on topic Getting joint 0 following error?

So would I delete all of this?
net y-index-enable <=> pid.y.index-enable
net y-enable => pid.y.enable
net y-pos-cmd => pid.y.command
net y-vel-cmd => pid.y.command-deriv
net y-pos-fb => pid.y.feedback
net y-output => pid.y.output

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PCW
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29 Mar 2020 14:53 #161973 by PCW

Replied by PCW on topic Getting joint 0 following error?

No!
just

net x-vel-cmd => pid.x.command-deriv
net y-vel-cmd => pid.y.command-deriv
net z-vel-cmd => pid.z.command-deriv

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Catch22
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29 Mar 2020 15:06 #161975 by Catch22

Replied by Catch22 on topic Getting joint 0 following error?

Ok thanks

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OT-CNC
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29 Mar 2020 17:50 #162009 by OT-CNC

Replied by OT-CNC on topic Getting joint 0 following error?

I'm working with the same drives right now and linear encoders on the machine. How did you setup the drives? Are they running the motors correctly (belts removed) before connecting to linuxcnc?

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Catch22
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29 Mar 2020 18:33 #162012 by Catch22

Replied by Catch22 on topic Getting joint 0 following error?

Only one motor is working properly, when I get a few minutes I will let you know how they are wired, after I get it working properly.

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OT-CNC
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29 Mar 2020 19:01 #162015 by OT-CNC

Replied by OT-CNC on topic Getting joint 0 following error?

I'm almost all set with the initial setup on mine. Let me know if you have questions. I would make sure they run correctly with a small external control voltage applied, like 1.5v from a battery, before connecting to linuxcnc. I was initially fighting duds from fleabay. Motors should run smooth in both directions and drives should not fault out.

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Catch22
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29 Mar 2020 20:49 #162021 by Catch22

Replied by Catch22 on topic Getting joint 0 following error?

Ok, so I tried 2 other drives that I had and all motors are turning both directions now.
I tried just manually moving each axis and x does nothing, y moves -.0003 and z moves -.0003 nomatter how far I move them that's it.

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