HEIDENHAIN TNC 640 User Manual page 22

Even when the 3D-ROT dialog is active in Manual Operation
mode, PLANE RESET still functions with active basic
transformation, see "Activating manual tilting:", page 786
The feed rate potentiometer only reduces the programmed feed
rate and no longer the feed rate calculated by the control, see
"Feed rate F", page 238
The DXF converter displays FUNCTION MODE TURN or
FUNCTION MODE MILL as a comment
New and modified cycle functions 34059x-06
New cycle 258 POLYGON STUD
New cycles 600 and 601, touch probe cycles for monitoring with
a camera (option 136)
Cycle 291 INTERPOLATION TURNING, COUPLING (option
96) has been expanded by parameter Q561
Cycles 421, 422 and 427 have been expanded to include
parameters Q498 and Q531
In Cycle 247 PRESETTING, the preset number from the preset
table can be selected with the corresponding parameter
Cycles 200 and 203: The behavior of the dwell time at top was
modified,
Cycle 205 performs deburring on the coordinate surface
With SL cycles, M110 is now taken into account with circles
compensated inwards if it is active during machining
Further information: Cycle Programming User's Manual
22
Fundamentals | Control model, software and features
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017