@dc42 Yes but the Maestro do not have any fuse.
Yes, I read that too. But I am not sure if I understand that correctly. Can I connect the IN pin of the Z probe without a diode and load it with 24V? I don't want to damage the board.
And what about the Maestro. Can i connect the NPN Sensor directly on the Power + ground (24v) and the Signal on the Z-probe IN pin without any diode?