Changing The Spindle Speed And Feed Rate - HEIDENHAIN iTNC 530 User Manual

Changing the spindle speed and feed rate

With the override knobs you can vary the spindle speed S and feed
rate F from 0% to 150% of the set value.
The override knob for spindle speed is only functional on
machines with infinitely variable spindle drive.
HEIDENHAIN iTNC 530 477