HEIDENHAIN TNC 640 User Manual page 19

Fundamentals | Control model, software and features
New and modified cycle functions 34059x-05
New cycle G880 GEAR HOBBING (option 50, option 131)
New cycle G292 CONTOUR.TURNG.INTRP. (option 96)
New cycle G291 COUPLG.TURNG.INTERP. (option 96)
New cycle G239 ASCERTAIN THE LOAD for LAC (Load Adapt.
Control) load-dependent adaptation of control parameters
(option 143)
Cycle G270 CONTOUR TRAIN DATA has been added
Cycle G139 CYL. SURFACE CONTOUR has been added (option
1)
The character set of machining cycle G225 ENGRAVING has
been expanded with the CE character, ß, the @ character and
system time
Cycles G252-G254 have been expanded with the optional
parameter Q439
Cycle G122 ROUGH-OUT has been expanded by the optional
parameters Q401, Q404
Cycle G484 CALIBRATE IR TT has been expanded by the
optional parameter Q536
Cycles G841 SIMPLE REC. TURNG., RADIAL DIR., G842
ENH.REC.TURNNG, RAD., G851 SIMPLE REC TURNG, AX, G852
ENH.REC.TURNING, AX. have been expanded by plunge feed
rate Q488
Eccentric turning with Cycle G800 ADJUST XZ SYSTEM is
possible with option 50
Further information: Cycle Programming User's Manual
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
19