Does the toolpost make any noise when you ask for a toolchange? ie: it could be jammed and trying to turn. Also can you post the serial no and year of manufacture for the machine?

Wire nos for the sensor are;
69 +5v
70 0v
75 Input

Sensor is 10 - 30v PNP. RS p/no 249-2344

We now use the sensor connected to the 24v supply line and drive a relay which then closes/opens the sensor input.

:shock:The reason everyone is so confused is because this latest post from boots is nothing to do with a Mirac it belongs on his TRIAC post!