hi go up on the cnc, remove the covers & mess with the locks; so to allow the doors to be opened anytime ( during machining, or when power is off, etc )
obviosuly, be carefull, maybe someone, that does not know, will start the machine by mistake when the doors are opened, so put the locks back as soon as you consider, and talk with everyone that will work on the machine, and be sure that all is ok
do you need a photo ?