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Spindle speed s, Entering tool-related data 5.1 – HEIDENHAIN TNC 640 (34059x-04) ISO programming User Manual

Page 161

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Entering tool-related data

5.1

5

TNC 640 | User's Manual for DIN/ISO Programming | 3/2014

161

Spindle speed S

The spindle speed S is entered in revolutions per minute (rpm) in a

T block. Instead, you can also define the cutting speed Vc in m/min.

Programmed change

In the part program, you can change the spindle speed in a

T block

by entering the 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 override knob S.