F4037 on drive enable (2 synchronised axes)

Hello,

We are commisioning an application with 2 CtrlX drives, one with core (with Ethercat, motion and PLC app). The axes will work in jog mode, synchronized (as long as a button is pressed, the axes will move synchronized in one direction). We managed to configure the Ethercat and Motion App, and to power the drives with PLC app using MC_Power_on fb. The problem is that we receive immediately the error F4037. I have attached the par from both drives and the system report also. The behavior is strange, as sometimes we manage to power the drives and to synchronize them with MB_AddToGantry fb, but when we try to move (with MC_Jog or MC_MoveAbsolute) the error pops up immediately. Same thing with the drives independently controlled. What can be the problem? Motion configuration, operating modes or incorrect/incomplete telegram parameters?

Thank you!

Best reply by CodeShepherd

Could you please check, that the control words that are used by the ctrlX MOTION to command the ctrlX DRIVE must not be mapped/actualized via the PLC at the same time? Otherwise PLC will try to overwrite the motion commands cyclically and this oscillating could occur.

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