Problems with Lichuan Ethercat servo drive

Hello everyone

First, thank you all for the work put into getting these drives running with linuxcnc. This is amazing!

I have a setup with 3x 1 kW motors and 23bit absolute encoders which works perfect.

Did some of you also notice this high pitch whining noise originating from the drivers when they are online? Maybe coilwhine? Are there means to eliminate this? EMI filter needed?

Hey first of all thank you all for your awesome work!!
I have the same setup (I think) ( www.aliexpress.com/item/1005006913304675...n.112.45bb1802PVhuo5 )
And yes I can also hear the whining sound while the drives are active.
@Sandro would you be willing to share your whole config? I'm still very new to the whole config thing and the more files I have to compare to each other the faster I can learn.

Hi friend... I'm glad someone pointed me to your post!
My case is exactly the same. I've been trying for 5 months and I'm about to give up on ethercat.
I'm at the same point as you were, I can identify the servo on the network but I can't read or write without it saying that it stays in PREOP and doesn't go away.
I saw that you shared it but I'm a beginner, how should I use these files you sent? Could you please detail if I should replace everything or what to do?

Hello trisa25! I've been struggling for months without success!

Thanks for sharing with us!

I arrived at the forum and saw that you managed to do it and I think it's incredible! Well, where should I put these files in the linuxcnc-cia402 folder? What would be the path and should I copy the folder or just the files?

I faithfully followed what the forum asked. I'm on a clean copy and I didn't open LinuxCNC at any time, no configuration, nothing! In fact, my doubt is because I'm going to make a Scara robot and there's a ready template there... whether this configuration you made will work or not.

Hello!

I'm struggling here... in my case there is no such folder as config...

I'm going to make a Scara arm so I don't know if it can have several configurations or just 1... because I haven't run my servo on Ethercat yet and I want to continue to get it either way. Then I'll go where I need to go.
Question 1: Is this config folder generated after I open Linux CNC? I don't want to do that because I'm once again faithfully following the tutorial that's on the forum. Hehehehe
Question 2: If I make it for a 3-axis CNC router, can I make a configuration for Scara and will the Ethercat issue be the same?

I feel like crying... the engine worked! Thank you very much now let's go to phase 2 hehehehe