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I am also having this issue. The controller hangs when i use outputs.
Any luck finding a solution?

Page 6-39 of the ASDL-A3 drive manual shows support for an Inc. scale interface input for CL mode internal to the drive on CN5 pins 1-9.

That error is well within normal ranges even using a scale. It is never recommended to use a combination of stepper and servo though. It can be a challenge to match the FF gains due to the mismatched inertial loads of the motors. This will become apparent when you do an interpolation in 2 axis XZ or YZ or a 3 axis XYZ where blending will be an issue. Other than that, your experiment should yield some measure of success. The extent of which will be trial and error your part.

Are you using a Mesa for scale feedback? Typically, the scale will be connected to the TP connect device. In Ecat this is the drive. The A3 drive as far as I can tell accepts an external CL feedback device. But I think it is serial using SSI, or EnDat. I don't remember seeing an incremental scale interface for the A3 in the manual.

Like I said, as far the Ecat driver for LCNC, I do not see the support for closed loop control which makes sense given the pos mode only true support. But, I have been wrong before and have no experience trying to get LCNC closed loop over ECAT. Typically you want to close the loop as close as possible to the TP and PID controller. In POS mode, that will be the drive. In VEL or T mode the choice is yours.

Finally, in ECAT the DC(distib clock) is used to sync a specific bit to all devices so that for motion all drives will react simultaneously to commands within the same time domain. That is the SYNC bit. Once the Tx is returned with all devices ACK through the working counter they are ready to do work, the sync bit is set and the drives go to work. This happens every bus cycle. Using non-ECAT drives would preclude any ability for you to control the sync domain. It may not be too much of an issue unless doing any machining that require absolute sync during interpolation. The drives individually may no error of substance but the axis to axis or linking error will certainly be undeniable. How much error is a crap shoot on every interpolation start.

Good luck Sir.

Hi i'm new to linux and linuxcnc and i've been struggling for few days
I'm trying to build a 3axis mill so I connected rpi5 with beckhoff ek1100 and R88D-Kn04h-Ect
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step
Followed the steps above the link and got
ethercat slaves
0 0:0 PREOP EK1100 EtherCAT Coupler (2A E-Bus)
1 0:1 PREOP EL2008 8K. Dig. Ausgang 24V, 0.5A
2 0:2 PREOP R88D-KN04H-ECT G5 Series ServoDrive/Motor
3 0:3 PREOP R88D-KN04H-ECT G5 Series ServoDrive/Motor
4 0:4 PREOP R88D-KN04H-ECT G5 Series ServoDrive/Motor
After that I tried on a cia402 example to move some servos to check its working
github.com/rodw-au/linuxcnc-cia402/blob/main/ethercat-conf.xml
 
but couldn't make it work
So I made a modification on xml and hal and ini file
And here is the problem I'm facing
Now i can enter into gui and when i execute the program
only beckhoff ek1100 module enters into op state
but the servo does'nt enter into op state
Could someone help a bit thanks!
I'll attach my files thanks..

Fair enough mate, I'm surprised its not more popular. I would offer to take on the responsibility if I had even half a clue on what I was doing I'm still learning how to find files in Linux haha lead alone do actual development. maybe one day?

Hey mate, I haven't had a look yet but this looks awesome. Im still on the fence about using this or Probe basic and going back and forth in my mind on what I prefer. But If I go with QTDragon I will totally look at yours thanks heaps for this

Im honesty surprised more UIs for LinuxCNC aren't portrait mode compatible as it makes for a better form factor on the side of the machine in a console but I guess everyone is different

ississ wrote:

Testen Sie Ihr Setup und verwenden Sie es, wenn es funktioniert.
Wenn nicht, gibt es noch viele weitere Motherboards mit PCIe und Adapter.

PCIe-Riser und Adapter mit 5i25, eingebaut in ein altes Topfield-Gehäuse. Funktioniert gut.

(translated by google)


 
Hallo und guten tag,
Ich habe nun den adapter bekommen auch die PCI-x peitsche und das Molex kabel.

Der rechner läuft die Adapterkarte wird erkannt der rechner startet mit linuxcnc

so weit so gut doch sobald ich die 5i25 in den pci adapter stecke schaltet sich der rechner nicht mal mehr ein
die 5i25 hab ich auf einem alten Gigabyte GA-B75M-D3H getestet da läuft sie anscheinend spricht das system falsche buss register an

haben sie eine möglichkeit zur lösung des problems?

danke und schöne grüße aus österreich:) 

I moved addf 5i24 write to the very bottom of addf statement list.
With P=1 and D=1.2 and other PID params = 0 I was able to jog Z axis up and down for 10-15 times. Changed to D=2 and a runaway on first attempt to move up. Lowered to D=1.5 and a runaway on first attempt to move up. Back to D=1.2 and I was able to move it for something around 10 times back and forth and then got a runaway.
One more thing is that runaways happen at the start of move when I try to move UP (and the runaway always is in opposite direction). There are 2 pneumatic cylinders that push that whole Z axis thing up to reduce the load on motor. I turned the motor by hand - moving up is slightly harder, I can feel a difference, but I would say that it is small

Ich hatte es auch auf meinem Laptop probiert und da passiert genau das gleiche. Ich muss nur starten etwas raus rein zoomen und es verschwindet. Wie kann ich meinen Grafik Treiber aktualisieren?
grafik Kernel ist i915. 

Habe jetzt von meiner Tochter den pc geschnappt und installiert und passiert genau das gleiche bisschen zoomen oder mit Mausklick verschieben und zack der Tisch ist weg.

anscheinend muss ich doch einen Fehler machen oder etwas vergessen zu installieren. Sonst würde es nicht an 3 verschiedenen Geräten passieren. 
pc Intel i5-2500k
laptop muss auch in dieser Liga sein
und lenovo thinkcenter m73

installiert Update, Upgrade dann linux cnc sim qtplasmac starten ohne irgendetwas einzustellen. Mausrad raus oder rein und weg ist er

Probably not easier than a SPINX1 but this is what I used on my Sherline lathe:
forum.linuxcnc.org/38-general-linuxcnc-q...tions?start=30#47712
 

I am trying to control my sherline lathe spindle motor which is typically controlled by a potentiometer that directly runs mains voltages. I have been reading older threads and have been trying to better understand my options on how to control this:

It seems I would need to generate a PWM signal from one of my mesa boards and use an isolated pwm to analog converting board like the SPINX1 - is that correct? Are there any other easier ways?


Also - how can I generate the PWM signal? I have read I can flash my mesa 7i96s with a specific firmware to give pwm on steppgen 4 - my concern with this is that I spent forever geting everything up and running with this lathe, and am worried I will break something

I also have the mesa 7i85s (and 7i92TM) which I read can generate pwm. I am not the most savvy with this stuff (hence it took me forever to wire up a 2 axis lathe) - so I am looking for advice on the simplest (and safest) way to accomplish replacing the potentiometer control on my sherline lathe spindle for linuxcnc control

Please help and thank you so much!

I have a couple machines using beckhoff stuff and ethercat. 
I got a small 5 axis mill that seems to use analog and digital io cards from a company called cscam from south korea. 
I think they may have gone out of business, I am trying to contact them but with no response. 

I have been looking around and cant seem to figure out how to approach this. 
Everyone seems to say just get the xml from the vendor. 
If that isnt an option can I reverse engineer this? It seems I can get a list of the pdo and sdo from the slave via a running master. 
Then it seems like some sluething and some luck and I might be able to figure it out. 

While I continue to try to find the manufacturer might anyone be willing to just give me a heads up if this is a fools errand or possible with some work and some luck. 

The machine i have is missing the pc with controller but everything else is intact so if I can just get the ethercat analog and digital cards working I am done!

Do you need to drive 10 Steppers ?

Yeah the max stepgens or whatever are built into the firmware.
If you make a request Pete will build firmware to your liking, he's a top bloke like that.

If you download the 7i92t.zip file under specs on the 7i92t product page it has numerous firmware .bin and most have an accompanying .pin file that has the pin description for each.

I guess because the compatibility with the parallel port I/Os pins.
I believe it is not possible to configure in HAL a stepgen step or dir pin, the only way is to compile and load a custom bin file to for custom numbers of modules.

This is project is awesome, I just ordered some WT32-ETH01's, keep up the good work!

A big thank you from me!