Spindle Speed S - HEIDENHAIN TNC 640 User Manual

Tools | Entering tool-related data

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 NC 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
If the number of the already inserted tool is entered in
the T block without specifying the tool axis, then only
the spindle speed will change.
If the tool axis is also entered in the T block, the control
will insert a replacement tool if a replacement tool was
defined.
Changing during program run
You can adjust the spindle speed during program run with the
spindle speed potentiometer S.
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
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