Feedback Torque in Ethercat CoE

Hello,

I'm trying to connect an ctrlX Drive with ctrlX Core through Ethercat but I have a problem with the Feedback Torque parameter.

When I add this parameter in the ctrlX IO and mapping in Motion (in the webserver), all the parameters that I mapping in Motion are freezing (position and velocity). If I quit the feedback torque, it works perfectly.

That is the configuration of ctrlX IO:

I'm working with 2.6 version and the drive has V-0602.

Any ideas?

Best reply by Jochen_Mueller

Hello everybody

Summarizing this issue (tested with version 3.4)

  • SoE communication

    • works without any problem

  • CoE comminication

    • bug inside the motion app if the torque is mapped at the axis profile

      • activation of one drive -> freeze of actual data

      • activation of more than one drive -> error message by PowerOn

development department is informed. They are working on the problem

Possible workarounds

  • use SoE instead CoE for the ctrlX Drives

  • stay at CoE

    • delete the torque mapping -> motion app is working

    • read the torque feedback via PLC directly.

      • Read via FB

      • set up cyclic RT-data

Regards

Jochen

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