Search found 74 matches

by GabrielR922
Fri Aug 20, 2021 7:10 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom.

This is what i have from the chinese manufator. The encoder is 24v. The paper shows 5v but it's 24v.

Is there a way to test if kanalog is able to read the return of the encoder?
by GabrielR922
Fri Aug 20, 2021 12:51 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom.
Here is the scheme for the MPG pendant.

Thanks
by GabrielR922
Wed Aug 18, 2021 11:04 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom.

The machine is capable of 45m/min. If 17hz is 4m/min it can do 170hz at 40m/min?

Also, bought a pendant that has a 24v encoder. is there a way to wire it to kanalog ?

If not, i may test with 5v even if it is 24v?

Thanks.
by GabrielR922
Wed Aug 04, 2021 5:44 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom!

The axis pitch is 40mm, 4000 / 40 = 100 rpm. It also has 2 pulleys, 2.5 to 1, 100 * 2,5 = 250rpm.

Is there a way to take away this resonance ?

Thanks!
by GabrielR922
Tue Aug 03, 2021 4:43 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom, As my knowledge in this is limited, I tried different axis tuning, modifying PID to different values while maintaining error small. And all tunings resulted in marks on the finished part. (tried different tools and holders to verify also, with different speeds I got better results. even fast...
by GabrielR922
Tue Aug 03, 2021 4:14 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

I don't see how that would make any difference. Yeah, me too Tom, i can further test to see if it happens again, but that was the solution. I see an oscillation at ~ 17Hz So, I should use a pole-zero filter to increase gain in this region ? Do you have any suggestion to what I can do? I already tri...
by GabrielR922
Tue Aug 03, 2021 12:09 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom. Did you mean raising it from 10 to 100? No. I mean lowering from 10000 to 100. With a max following error of 10 my machine won't even move. And will trigger a following error in the console. I often use a 2nd order low pass filter of 500Hz Q=1.4 in the last Filter #2 and clear #0 and #1. Did...
by GabrielR922
Mon Aug 02, 2021 10:02 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom.

One more feedback.

Here goes the output for 4m/min. (Very bumpy, i can't hear any noise.)

4.5m/min and 5m/min goes very smooth.
Also for 29m/min.
by GabrielR922
Mon Aug 02, 2021 9:09 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom. I have a code that disable axis all axis if one axis is disabled due to following error. I had the Y axis following error set to 10.000, lowering it to 100 solved the problem. (my system is tuned for around 50 counts). The Y axis seems to be doing very fine, but the X axis, at ~4000mm/min gi...
by GabrielR922
Mon Jul 19, 2021 7:15 pm
Forum: Configuration Issues
Topic: Axis jerk, servo tuning and capturing data
Replies: 25
Views: 448

Re: Axis jerk, servo tuning and capturing data

Hi Tom. The jerk seems to be where the helix end and the radial motion starts. (flat, not with Z movement). Raising the Tau from 0.01 to 0.02 seems to do a lot better. Now the machine is simple stopping in random places in linear one axis movement. (G1) Without outputing a console error. photo attac...