Cycle 202 is not available on my TNC

Question:

On my TNC the soft key for defining Cycle 202 BORING is blank. The User’s Manual says: Machine and control must be specially prepared by the machine tool builder for use of this cycle.

Answer:

A closed-loop spindle is necessary for Cycles 17, 18, 202, 204 and 217. If your machine has not been equipped for this, the TNC automatically hides the cycles and the soft keys are blank.