HEIDENHAIN TNC 640, User Manual, Page: 239 / 948

Tools | Entering tool-related data
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
239
Spindle speed S
The spindle speed S is entered in revolutions per minute (rpm) in a
TOOL CALL
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
TOOL
CALL
block by entering the spindle speed only:
Program a tool call: Press the
TOOL CALL
key
Ignore the dialog question for
Tool number ?
with the
NO ENT
key
Ignore the dialog question for
Working spindle
axis X/Y/Z ?
with the
NO ENT
key
Enter the new spindle speed for the dialog
question
Spindle speed S= ?,
and confirm with
END,
or switch via the
VC
soft key to entry of the
cutting speed.
If the number of the already inserted tool is entered in
the
TOOL CALL
block without specifying the tool axis,
then only the spindle speed will change.
If the tool axis is also entered in the
TOOL CALL
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.