Search found 26 matches

by Scott Pancheau
Tue Apr 28, 2020 1:45 am
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

The text documents that the plots downloaded as exceeded the maximum attachment size so I copied the text into word documents. Please let me know if this will not work and how to go about getting the files to you.

Thanks,
Scott
by Scott Pancheau
Mon Apr 27, 2020 3:47 pm
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

I don't see the attachments I thought I included from the save data function on plot screen. I saved the plots to documents, copied to a USB, and drug from there into the text area of my post. They showed transferring, but apparently did not stick. Is there a specific procedure to use. The computer ...
by Scott Pancheau
Mon Apr 27, 2020 3:41 pm
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

Thanks Tom, I turned off the dead band and added D and I. Corrected the clerical error on filter screen ( Q to 1.4) Tried to raise the P after adding D, but caused oscilation on longer moves. With the shown settings the axis is returning to the same encoder count and a travel indicator shows the act...
by Scott Pancheau
Sat Apr 25, 2020 2:56 pm
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

Thanks again Tom. I went back through the wiki and tried to follow it better. Thanks for telling me about the 2047 max limit and it causing wrap around. I was have strange results at times. I did mean filter screen in regard to the 500 frequency entry. I am including a shot of that screen. I am incl...
by Scott Pancheau
Thu Apr 23, 2020 3:11 pm
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

I made another run at tuning. I think this plot is better? The command and move are more together. I don't know how to try to get the red - commanded position to be less wide? The analog output was showing just over 9 volts so I think that would be maximum velocity that can be achieved? I also enter...
by Scott Pancheau
Thu Apr 23, 2020 1:08 am
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Re: Fanuc DC motor drives

Thank you Tom. It did work to change the input gain setting. I have spent several hours trying to get the X axis to be more responsive, but it seems to not like very much of anything as far as PID settings. It wants to oscillate and trip out with increases of any of these. I can get smooth moves, bu...
by Scott Pancheau
Tue Apr 21, 2020 2:10 pm
Forum: Tuning Servos
Topic: Fanuc DC motor drives
Replies: 10
Views: 1357

Fanuc DC motor drives

Setting up a lathe with Fanuc DC drives. I can use DAC commands on X ,Z, and spindle. They respond smoothly and correctly for direction and speed. I can use the move commands in tuning for the Z axis and get the expected results. The step command will only jerk a minor amount and back regardless of ...
by Scott Pancheau
Wed Apr 08, 2020 3:49 pm
Forum: Configuration Issues
Topic: Operating system confusion
Replies: 3
Views: 743

Re: Operating system confusion

Thanks for your help. I will do as instructed.
Scott
by Scott Pancheau
Tue Apr 07, 2020 6:23 pm
Forum: Configuration Issues
Topic: Operating system confusion
Replies: 3
Views: 743

Operating system confusion

I am setting up another lathe with Kmotion. I had previously installed version 434b in computer. I now want to use the same program frame as my other lathe that Tom K set up. It has 435b as operating system. I have twice completely deleted all the 434 from the computer and copied in the 435 b from m...
by Scott Pancheau
Thu Mar 19, 2020 3:46 pm
Forum: Hardware Interface Issues
Topic: Fanuc pulse coder use
Replies: 4
Views: 785

Re: Fanuc pulse coder use

Thanks Tom,
I did find info showing they are quadrature and the z is a single pulse per rev. which I don't think I will be using.