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10 Jul 2019 23:38 #139037 by PCW
Replied by PCW on topic moving problem
Why would you edit the hal file?
At least to begin with, pncconf should generate a working file

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11 Jul 2019 05:27 #139063 by RoberCNC
Replied by RoberCNC on topic moving problem
I do not know, maybe because I'm a complete rookie and I do not know exactly what I'm doing :P. So I do the pnfconfig wizard until the end? does not have to light an LED or anything?

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11 Jul 2019 15:46 - 11 Jul 2019 15:46 #139111 by PCW
Replied by PCW on topic moving problem
pncconf should make a working configuration.
At this point you run LinuxCNC with your newly created configuration

As far as LEDs go, you do need to have both yellow LEDs illuminated on the 7I76 before all I/Os will work.

The left yellow LED indicates 5V power (the 5I25 should be jumpered to supply 5V power to the 7I76 = 5I25 W2 UP)
The right yellow LED indicates field power (from orange connector)
Last edit: 11 Jul 2019 15:46 by PCW.

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11 Jul 2019 21:42 #139129 by RoberCNC
Replied by RoberCNC on topic moving problem
Then I can feed the 7i76 with 5v from the 5i25 and also supply external field power? Thank you very much for that clarification PCW, I had understood that it was either one or the other. Do external 12v go well or do they necessarily have to be 24? it would really be only for the limit switches apart I just need to move the steppers and the head that go with independent power with the drivers for the moment

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12 Jul 2019 12:17 #139166 by RoberCNC
Replied by RoberCNC on topic moving problem
Hi, I have already made the installation of the cards and both LEDs look on the 7i76 as you said.

I made the Pncconf and executed LinuxCNC with it but I can not move the steppers, I tried to upload the steplen to 5000 as well as to decrease the speeds and accelerations created by default as I read in other posts.

The spindle if I can move it but limits me for some reason to 6000 revs of the 12000 that can reach.

On the other hand I get a Realtime delay error.

I attach files .INI, .HAL and the dmesg collected in the terminal to see if you can help me.

Thank you.
Attachments:

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12 Jul 2019 13:49 #139172 by PCW
Replied by PCW on topic moving problem
Have you run a latency test?
I would try running

latency-histogram --nobase --sbinsize 1000
for an hour or so and post the results here

Most likely things that cause latency errors in 1 ms servo threads are:

Power management (disable all speed-step, turbo modes, C states greater than 1 etc
in the BIOS)
Failing hardware (bad video cards or failing hard drives can do this)

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12 Jul 2019 15:39 #139179 by RoberCNC
Replied by RoberCNC on topic moving problem
I did it before I bought the Mesa cards to know if the purchase was worth it. However I just executed the command as you say, like the normal latency test, I understand that I will have to abuse the system even if the computer is only destined to LinuxCNC.

The only thing I can not do is surf the web, I do not have internet in the workshop.
The motherboard is a Gigabyte Ga-945P-S3 with integrated audio and video (currently disabled) I say it because I do not know if removing the graphics card and audio and activate the integrated ones could solve something.

I have not found anything similar to what you mention in all my BIOS.

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12 Jul 2019 16:26 #139184 by PCW
Replied by PCW on topic moving problem
On a 945 , I would use the on-board video

Getting a real time error with just a 1 ms servo thread means something fairly
major is wrong with the host CPU system

What OS and LinuxCNC version are you running?

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12 Jul 2019 16:44 #139186 by RoberCNC
Replied by RoberCNC on topic moving problem
I´m running a Debian Wheezy 2.7 version on a Intel Core 2 CPU 6400@ 2.13 Ghz with 3 Gb of RAM. Here you have the test results.
Attachments:

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12 Jul 2019 16:47 #139187 by RoberCNC
Replied by RoberCNC on topic moving problem
The realtime delay error appears if I run linuxCNC and shake the window

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