HEIDENHAIN TNC 640 User Manual page 16

Fundamentals | New and changed cycle functions of software 34059x-07
Cycle 860 has been expanded by parameters Q510, Q511, and
Q462. This makes it possible to program an overlap, a feed rate
factor, and a selectable retraction behavior, See "RECESSING
CONTOUR RADIAL (Cycle 860, DIN/ISO: G860)", page 445
Cycle 870 has been expanded by parameters Q510, Q511, and
Q462. This makes it possible to program an overlap, a feed
rate factor, and a selectable retraction behavior, See "AXIAL
RECESSING (Cycle 870, DIN/ISO: G870)", page 458
In Cycle 810, parameter Q499 was expanded with the input
option "2". This modifies the tool position if the contour is
machined in the direction opposite of the programmed direction,
See "TURN CONTOUR LONGITUDINAL (Cycle 810, DIN/ISO:
G810)", page 389
In Cycle 815, parameter Q499 was expanded with the input
option "2". This modifies the tool position if the contour is
machined in the direction opposite of the programmed direction,
See "TURN CONTOUR-PARALLEL (Cycle 815, DIN/ISO: G815)",
page 393
In Cycle 820, parameter Q499 was expanded with the input
option "2". This modifies the tool position if the contour is
machined in the direction opposite of the programmed direction,
See "TURN CONTOUR FACE (Cycle 820, DIN/ISO: G820)",
page 411
In Cycles 481 to 483, parameter Q340 was expanded with
the input option "2". This makes it possible to check the tool
without changing the tool table, See "Measuring tool length
(Cycle 31 or 481, DIN/ISO: G481)", page 728, See "Measuring
tool radius (Cycle 32 or 482, DIN/ISO: G482)", page 730,
See "Measuring tool length and radius (Cycle 33 or 483, DIN/
ISO: G483)", page 732
Cycle 251 has been expanded by parameter Q439. In addition,
the strategy for finishing was revised, See "RECTANGULAR
POCKET (Cycle 251, DIN/ISO: G251)", page 159
In Cycle 252, the strategy for finishing was revised, See
"CIRCULAR POCKET (Cycle 252, DIN/ISO: G252)", page 164
Cycle 275 has been expanded by parameters Q369 and
Q439, See "TROCHOIDAL SLOT (Cycle 275, DIN/ISO: G275)",
page 247
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HEIDENHAIN | User's manual for cycle programming | 10/2017