Hi,
Very long between updates, but this machine has been a little in the back seat the last 10-12 years.

Anyway, in 2021 I changed the spindle drive, servo drives, power module etc to the newer C1 versions. After that I got the 018 alarm because the C1 servo drives did not like my OSE 253 encoders! It wanted high speed OSE 104's or OSE 105's. Recently I bought 4 brand new OSE 105 S2's (1000 000 pulses per rev) and installed those. After some initial servo parameter changes the system is now up and running.

So now I could continue to check on the orientation issue again and play around with the parameters in the documents in post #3 again and it responded immediately! Now I have fast orientation and it is rigid. Tool changes are fast and accurate.
Problem solved! I put those early orientation problems down to my old faulty spindle drive.