poor surface quality

  • Sternfox
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09 Jul 2025 22:11 #331599 by Sternfox
Replied by Sternfox on topic poor surface quality
That's correct. I'm going to try to adjust the gain settings and see if I can get this tighter. Any suggestions what settings to look for? Many thanks

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09 Jul 2025 23:15 #331603 by PCW
Replied by PCW on topic poor surface quality
Probably need the drive manual for that...

If it's like a classic motor drive, there will be three nested PID loops:

1. Torque (current) command/feedback --> torque (current) out
2. Velocity command/feedback --> torque out  
3. Position command/feedback --> velocity out

Is there any tuning program available for the drive?





 

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10 Jul 2025 20:52 #331666 by Sternfox
Replied by Sternfox on topic poor surface quality
I have had a good look through the manual, unfortunately, no tuning software but i have looked at these parameters and looks like they can help.

P08-00 Speed loop gain.
P08-01 Speed loop integral time constant
P08-2 Position loop gain
P08-15 Load inertia ratio
P08-19 Speed feedforward gain

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10 Jul 2025 21:51 #331673 by PCW
Replied by PCW on topic poor surface quality
Yep, I think you normally tune the inner (velocity in this case) loop first

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