Problems with Lichuan Ethercat servo drive

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Hi, I’d like to ask — which version of LinuxCNC and kernel are you currently running?

 

my try 
www.youtube.com/shorts/2hvAz5HbPGM

Hi all,

Thanks to this thread I have an axis moving! 

Unfortunately I'm a complete noob when it comes to LinuxCNC and I've been overwhelmed when it comes to looking at other people's setups for how to add PID.

I don't suppose anyone has a simplified setup they're willing to share so I could suss out how it works?

Cheers 

Hello,I am in the process of getting 4x Lichuan LC10E drives running in CSP mode. I have also observed the behavior of a large following error in CSP mode, as user Sandro mentioned in his post on 14 Sep 2024. After many hours of trying to run CSP mode without encountering a large following error, I suspect that parameter 6068 "Position window time" is to blame. The default setting is 16 ms, which I interpret as the drive having 16 ms to reach the required position. Together with parameter 6067 "Position window", this allows for a large following error while the drive still believes it is operating correctly.

Unfortunately, I am unable to change these values. Initially, I tried reading them with:"<pdoEntry idx="6068" subIdx="00" bitLen="16" halPin="position-window-time" halType="u32"/>"

But this gives me a changing value in HAL show with strange behavior as I would expect a steady value of 16When I try to write to 6068, I get the following error:

Lichuan strange company i buy at aliexpress & receive a water damaged garbage and no one wants to be responsible for it. 

Is it possible to use the lichuan servos in csv mode with ethercat. i dont see any target speed the the variable pdo mapping. Can you use the fixed pdo mapping? Ive tried using index 1702(fixed) but im not able to enable the drive.

Alex, try
nn being the number you want to set. There is also an upload. Sometimes it is better to do it outside of linuxcnc.
Check for SDO index:subindex using $ "ethercat -p 2 sdos"

Max, did you try to claim it with "AliExpress Seller Protection"?

Philip, the manual says it can be done see snippet here
 
You should be able to add PDO 0x60ff to the SyncManager listing in the config, I think.
0x60ff is also in rxpdo 1703,1704,1705 so one of them should work. I guess.

Check my comment on page 9 for a csv config.

Yes shure.
I try to run servo in csp, i see one big problem - moror jumping on re-enable.

I try to dual ethercat-stepper, lol ok all enabled first motor running good - when i try to rotate shaft motor not showing feedback. second axis showing normal. first axis good run - second axis max spedd 500rpm if more motor jumping.

Has anyone been able to connect the drives to their tuning software. Maybe its because im on windows 11.