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Tried this out but got following errors with large acceleration violations

Running the LinuxCNC logo:

 

How many degrees of backlash at the spindle?
 With this and the thread pitch, you could determine
the Z axis error caused by the backlash to see how serious it is.

I guess you could even make a hal backlash component for the
encoder position if need be. (create a deadzone on reversals)

Thank you for the feedback

If you wanted to use handwheels, consider Mesa over Ethercat.encoder/counter. Required Ethercat modules are expensive.

I have found it is better to use a matched pair motor/drive combo
I have had good luck with Rtelligent ECT drives matched to their closed loop steppers.
I could not get their ECT86 (NEMA34) drives working with NEMA23/24 motors.

tiagounderground wrote:

 
hi
in my last test there was no following error on gcode running, the problem was the very low acceleration.
following errors appears on homing procedure

cia402 defines pins to set velocity and acceleration while homing. 0x6099 and 0x609a

Grotius wrote:

Hi,

Can we test the cia-402 and shortcut linuxcnc pos-cmd to pos-feedback so
there is no ferror in linuxcnc that can trigger a motion stop? 
Or test it by hooking the cia-402 to a stepgen or pid without closed loop feedback. 
 

The only time this is necessary is during internal homing (if used). During homing, motion is happening that Linuxcnc does not know about so it generates a following error if this is not done.
In the drive, motion is measured in encoder pulses and in Linuxcnc uses device units
One of the other  things the cia402 component does is scale the encoder pulses to Linuxcnc device units (mm or inch)

It depends on the drive but many of them will have a SDO that tells the drive to use open loop or closed loop. There are some reasonably cost effective open loop Ethercat cia402 drives from Rtelligent and Leadshine. Both offer drives that can control two open loop stepper motors. The Rtelligent ECR60X2A is USD $60 each ex works (for 2 steppers). 

motor is 7.5kw so it has enough power machine is heavy 3tons knee mill
and gears are strong enough..
If something breaks will be the tap.

Looks like the board is at .10 and the PC should be .11

Can these settings pushed to master?
because with default configuration i have also the same problem...

hi there,

share photos of electronic which you have...

I have build profibus machine over ethercat and it works in the 2ms synchro ... I can help you if there will be avaible stuff and time

AX5xxx from beckhoff is SoE and it can be pain to create custom .xml which should be editable out of Sachas own .xml files...

I can recommend you ethercat stuff ... S120 over drivecliq is very powerfull tool with 31.25us bus cycle but prices are out of any small shop budget ..

regards

Yes Cakeslob it's for my mill. Bought a cheap 24" touchscreen from Amazon and got carried away testing it lol Static IP address, is it 10.10.10.10 or 10.10.10.11  for the board ?

murphy, is this a new linuxcnc and remora install?

I'm trying to upload the config on another EC500 but I'm getting this error. It's bookworm installed from the linuxcnc iso on a PC.

Grotius wrote:

Hi,

Can we test the cia-402 and shortcut linuxcnc pos-cmd to pos-feedback so
there is no ferror in linuxcnc that can trigger a motion stop? 
Or test it by hooking the cia-402 to a stepgen or pid without closed loop feedback. 



 

 

hi
in my last test there was no following error on gcode running, the problem was the very low acceleration.
following errors appears on homing procedure

edit
testing now in axis tab manual controll it disable the drivers, i can only run when in MDI tab
Controll word in all drivers is
15 before hit start
Then all goes 6 and then 4 very quickly