2 cr eating and w riting pr ogr a ms – HEIDENHAIN TNC 640 (34059x-01) User Manual
Page 89

HEIDENHAIN TNC 640
89
3.2 Cr
eating and W
riting Pr
ogr
a
ms
Possible feed rate input
Functions for setting the feed rate
Soft key
Rapid traverse, non-modal. Exception: If defined
before an APPR block, FMAX is also in effect for
moving to an auxiliary point (see "Important
positions for approach and departure" on page
184)
Traverse feed rate automatically calculated in
TOOL CALL
Move at the programmed feed rate (unit of
measure is mm/min or 1/10 inch/min). With
rotary axes, the TNC interprets the feed rate in
degrees/min, regardless of whether the program
is written in mm or inches
Define the feed per revolution (units in mm/rev or
inch/rev). Caution: In inch-programs, FU cannot
be combined with M136
Define the tooth feed (units in mm/tooth or
inch/tooth). The number of teeth must be defined
in the tool table in the CUT. column
Functions for conversational guidance
Key
Ignore the dialog question
End the dialog immediately
Abort the dialog and erase the block