Just wondered if anyone may notice these symptoms.
At tool change, ATC error shows on screen, usually with Tool pocket down. I go into diagnostics and put Tool pocket up, and then calibrate Tool carousel. But then when I try to change tools, you can hear the carousel moving around, but then nothing.
However, if I power down, and calbrate machine as normal, everything works again.
Obviously this fault is intermittent, and probably only occurs 4 to 5 times in an 8 hour shift.