Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA

We tried both of these things but the motor just starts up, turns rapidly and the machine shuts down completely

Is the motor connected to the axis? (It is probably best if it isn't at this point)

At a guess the system shuts down through following-error?

Is your PID active? How is it tuned? I am assuming velocity-mode servos here (I haven't read back through the previous messages). If that is the case, are the tachos working? Perhaps the tachos and motors have different polarity?

The axis is not connected at this time

The system does shut down with a joint 1 following error

Right now we have a P=1 with I and D zero and ff1 is 0.00000001 these settings do work on a servo of a diffrent Axis (way smaller Axis) on the machine. The servo motors are controlled through yaskawa servo packs where we send out drive signal and receive encoder feedback

We did manage to make it work. We started with P on 1. Apparently this was way to high. We fixed it by changing P to 0.01

Hey me again

we have made some good progress. now we want to home the machine. for each axis we have a different home switch. we try to use these home switches but when we put the different inputs at the home linuxcnc does'nt boot.

Is there a way to make this work?

kind regards

Yes there is and it works, always, but wee need much more information about the machine, wiring, hal and ini files etc.
Just went through this thread and noticed some issues, namely the PID values are way off. That means something in your ini/hal files is set up incorrectly or wiring is not properly done.
I did set up Yaskawa drives and they are very easy to tune with Linuxcnc ( about 5 minutes for 3 axis ).
Feedback from the encoders should go to the drives, drives have outputs that go to Linuxcnc. the loop has to be closed at the drive first, then Linuxcnc, otherwise the drive will not function properly.
This post took 3 hours to write !