homing with Phase Z encoder on MESA 7i96s

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1 year 3 months ago #331167 by tommylight
Topic separated, finally.
@JackRay,
Please refrain from tainting existing topics with unrelated content, start a new topic next time.
Thank you.

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1 year 3 months ago #331374 by JackRay
I don't understand, I have to create another subject.

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1 year 3 months ago #331378 by JackRay
I've just created this topic:
"homing with Phase Z encoder on MESA 7i96s".

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1 year 3 months ago #331385 by tommylight

Topic separated, finally.

... start a new topic next time.
It was for next time, not for this one, this one is fixed already.
Continue here.
Thank you.

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1 year 3 months ago #331464 by JackRay
now it's ok, my homing works properly. Thank you very much for your help. I now need to set it up to return to my Zero machine. Is it the Homing parmeter? or Homing Offset to apply an offset?

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1 year 3 months ago #331973 by JackRay
Hello,
After adjusting my Z-phrase for homing, I'm looking to gain some prediction on the positioning of my.
I have a 2000 puls quadrature encoder, which gives me a precision of 0.04 mm. However, I can't get within 0.15mm.
How can I get as close as possible to the maximum resolution of my encoder?

Thank you

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1 year 3 months ago #331978 by PCW
is this a static error? ( error when not in motion )

If so and you already have as much P term as you can set  while
remaining stable, you can add some I term to eliminate the static error.

If it's a dynamic error ( error when in motion ) I would have to have a
halscope plot of the error to see whats going on.

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1 year 3 months ago #332138 by JackRay
it's a static error. But when I put “I” > 1 I get a joint tracking error.

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1 year 3 months ago #332139 by PCW
Can you post a halscope plot of: 

1 Joint velocity
2. Joint following error

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