HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 410)

Programming: Special functions
11.8 Dwell time FUNCTION FEED DWELL
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TNC 640 | User's ManualDIN/ISO Programming | 1/2015
Resetting dwell time
Reset to the dwell time immediately following the
machining with chip breaking.
Use FUNCTION FEED DWELL RESET to reset the recurring dwell
time.
Proceed as follows for the definition:
Show the soft-key row with special functions
Select the menu for defining various plain-language
functions
Select the FUNCTION FEED soft key
Select the RESET FEED DWELL soft key
You can also reset the dwell time by entering D-TIME
0.
The TNC automatically resets the
FUNCTION FEED
DWELL function at the end of a program.
NC block
N40 FUNCTION FEED DWELL RESET*