HEIDENHAIN TNC 122 User Manual - Manual (Page 24)

4 Positioning with MDI
24 TNC 122
Entering and changing the feed rate F
Example: Enter the feed rate F
Select the feed rate function F for the next tool movement.
F
F
1 0 0
Confirm feed rate F for the next tool movement. ENT
Changing the feed rate F
Some machines are equipped with a potentiometer to allow you to
vary the feed rate.
Entering the miscellaneous function M
The machine tool builder determines which miscellaneous
functions are available on your TNC and what effect they
have.
Press the SPEC FCT key for special functions. SPEC
FCT
F blinks:
Enter the feed rate F, e.g. 100 mm/min.
Page to M FUNCTION.
M F U N C T I O N
Select M FUNCTION.
ENT
M 0
Execute the M function. I
3
M blinks: Enter the desired M function, e.g. M3 (spindle on, clockwise).
Confirm your entry.
Repeatedly
ENT