Trying to set up position control mode

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8 months 5 days ago - 8 months 5 days ago #343596 by jblanscett
Hi PCW,

I hope this is what you are talking about. We have our pn200 setting set at 5. Let me know if there is anything else I'm missing. Thank you for your time.

 
Last edit: 8 months 5 days ago by jblanscett. Reason: Picture showed up as text

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8 months 5 days ago - 8 months 5 days ago #343605 by PCW
Do you have the step/dir pinout information for the drive?

It does look like it may be single ended from the pictures of the
step/dir modes.

Also in your .ini file, you have the PID P term set to 0.
This should be 1000 (for a 1 ms servo thread period)
A 0 P term will cause position drift
Last edit: 8 months 5 days ago by PCW.

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8 months 5 days ago #343616 by jblanscett
Here is the connector layout. We have the P value set to 0 because we aren't able to get the axis to move when it is set at 1000. I thought we would try to get the motion working better before worrying about it. If we need to figure that out first, I can work on that first. 

Thanks,

-jblanscett

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8 months 5 days ago #343621 by PCW
1. A 0 P term will not work as it will drift it must be 1/servo_period
(1000 for a 1 ms servo thread period)

2. It looks like the step/dir inputs are differential so:

Drive        7I95
7   PULS    Step+
8  /PULS    Step-
11 SIGN     Dir
12 /SIGN    Dir-
 

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7 months 4 weeks ago #343787 by jblanscett
Hi PCW,

I have wired this up like you said. When I set the P value to 1000 we have continuous motion that doesnt stop and when I set it to 0 it moves a short while and then stops.

Thanks,

jblanscett

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7 months 4 weeks ago #343794 by tommylight

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