i have used a few fadals but am 100% new to okumas... i just got an okuma 4020 cadet with ops5020m control.. if i type a tool change example. (T02M06) the machine goes for a tool change but all it does is release the the tool into the atc and then the atc doesnt index for the next tool and the spindle just stays put like its waiting for me to insert a tool...... p.s. i am trying this with no tools in the spindle or in the atc... pretty sure i am doing something wrong.... help would be awesome thanks guys