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2.6.32-122-rtai

Thank you very much, Hakan!

I'll read the linked document, but your Explanation was perfectly understandable for a starter!

Cheers,
Matthias

dcConf is a setting some drives, typically servo and stepper motor drives, needs to synchronize the motion between them.
The choices are no synchronization (free run - often not accepted by drives), synchronization by precise time (DC - Distributed clocks) or synchronization by event (SM-synchronization).
What the drive accepts are in the ESI file for the drive and is set by a number in the assignActivate field. Check here for a lot of useful info on EtherCAT and a box for Synchronization www.ethercat.org/download/documents/Ethe..._Protocol_Poster.pdf
The sync0Cycle specifies the frequency of the DC clock cycle, or rather the period length. "*1" means 1 x applicationTime period, so often 1 ms. But different values can be given.
sync0Shift says exactly at which point inside this 1 ms the sync event takes place. 

watchdog is usually not needed, ethercat has a default 100 ms watchdog setting. Not sure what happens when the watchdog triggers.
It seems some drives needs this set specifically, such as the Stepperonline A6 servo drive.
The intervals are 40 nsec long, so the setting of intervals=2498 divider=1000 one can see ends up at 2498*40*1000 nsec = 99.92 msecs.
infosys.beckhoff.com/english.php?content...stem/1072459275.html

tommylight wrote:

Enjoy your trip, and no, not network, the Axis GUI.

To get the emergency stop to be removed I had to reload the code in ESP32

Thank you for your replies PCW and langdons,

You were on the money PCW! I had my MIN-Ferror set way too small - this made sense in my head, but clearly didn't work. Also swapped my A,B and Z polarities at the mesa. Thank you greatly for the tip!!

I've got the test motor running now, and am able to tune it with Tommylight's guide on the bench within 0.003mm ferror. Couple of questions for the next stage though:

- I assume I would get a baseline tune on the bench for all motors. Then instal motors, run the inertia calculator in the motor software (adust these parameters where fit), then finally re-tune/adjust my position tuning with motors under real loads?

Regarding wiring - I plan to use twisted pairs on the ANOout/GND control and each encoder channel. Can I have the 3 encoder twisted pairs in one shielded cable and the analog control in a seperate one? Or can I put them all in a common shielded cable?
Or do all encoder pairs need to be in seperate shielded cables as well?

Currently I'm just using some CAT6 cable for the encoder link and some shielded twin core audio cable for the analog voltage on the bench. However, I'd like to order the right stuff for the next stage of wiring.

Many thanks,

J

 

Looks good and great addition to qtvcp.
And thank you for all your efforts for creating and maintaining qtvcp.

This might help you: forum.linuxcnc.org/24-hal-components/418...thercat-etc?start=40

Thank you scotta, Im back early next week, I'll try it then and let you know.

parport_pc.so file missing

I don't know if the driver it's enabled, its hard to understand something with that display and buttons . But i'm trying to operate with motion studio that won't give me access to the driver, could be the chinese CH340 usb A to rs232 that i'm using . For the mesa i tryied boot up linuxcnc with the mesa offline and it didn't boot up(with the mesa online it boot fine), so the problem now is that i need to know what the driver it's doing and why i can't connect with it.
Tomorrow i try to check if i can enable the driver with the buttons .

@Murphy,

I've made some code changes which may help with the spindle issues. Would greatly appreciate your feedback.

github.com/scottalford75/Remora-RT1052-c...t1052-3.1.4.beta.bin

Thanks

Probe Basic

Not sure what you mean by tandem axis/joint. It's a mill so three axis, defined with axis_ and joint_

To that point, the issue is both before home and after, so joint and axis.

What error does LinuxCNC show?

What GUI?
Does the machine have tandem axis/joints?

I have soft limits on my axis and absolute encoders. If I power off the machine when I am on the limit (max or min), the machine may move by a 10th (0.0001) or so, once the servos release on power off.  This will cause the machine to "move beyond" the soft limit, even if just 0.0001.  Once this occurs, I can't jog the axis at all.  I have to edit the limits in the ini, jog and reset the limits back. 

I would expect you can jog toward the soft limit and beyond to get back into the limits.  How can I jog into the limits is I am just slightly over (but over)