Ethercat, CIA402, Yaskawa Sigma-X

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09 Apr 2026 14:00 #345358 by JacobWnavy
Ethercat, CIA402, Yaskawa Sigma-X was created by JacobWnavy
 
Hello Everyone, 
I have been working with LCNC for a couple of years now, but I am just now entering the forums. I am currently struggling to solve a CIA402 and Ethercat issue. I have set up Yaskawa Sigma-X servo packs using the CIA402.comp by  dbraun1981  and Ethercat Lcec. My problem is that on startup, the servo packs will transition through preop -> safeop -> op, but after sending the servo on control word one or more of my servos will drop to preOP or preOP E. I can fix this by sending the EtherCAT states OP command in the terminal and trying again. Sometimes I have to repeat this process 4 to 5 times before they all hold the OP state. I am thinking that it is related to distributed clocks or something along those lines. I was able to temporarily resolve the issue by setting the Sync Error counter limit to 0 (Disabled). I would like to use the Sync Error counter as intended, so if someone knows how to fix the desync issue on startup, that would help me out a lot.

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10 Apr 2026 11:50 #345393 by andrax
Replied by andrax on topic Ethercat, CIA402, Yaskawa Sigma-X
Could you please provide the error logs?

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