HEIDENHAIN TNC 620 (81760x-02) ISO programming - Manual (Page 165)

Entering tool-related data 5.1
5
TNC 620 | User's ManualDIN/ISO Programming | 2/2015
165
Spindle speed S
The spindle speed S is entered in revolutions per minute (rpm) in a
T block (tool call). Instead, you can also define the cutting speed Vc
in meters per minute (m/min).
Programmed change
In the part program, you can change the spindle speed in a T block
by entering the new spindle speed only:
To program the spindle speed, press the S key on
the alphabetic keyboard.
Enter the new spindle speed
Changing during program run
You can adjust the spindle speed during program run with the
spindle speed potentiometer S.