3. EXECUTION OF
OPERATION BY Symbolic FAPT
3. Warning and Notes
1 To use the multiple thread cutting cycle with the FANUC
Series 15–TFB, create the corresponding NC data after
setting identical values for the final depth of cut for threading
in system parameter No.119 of FAPT and the finishing
allowance in parameter No.6219 of the NC.
2 If the FANUC Series 16–T is being used, restrictions are
imposed on the tool angle that can be specified. (If an angle
other than 0, 29, 30, 55, 60, or 80 degrees is specified, P/S
alarm 62 is output.) If the FANUC Series 15–TFB is being
used, the tool angle can be specified within a range of 0 to
120 degrees, in 1–degree increments.
3 The thread radius, thread height, depth of first cut, and
finishing allowance (in the format for the FANUC Series 16)
are referenced with MTF1021 (X–axis least input
increment) and MTF1031 (number of decimal places of the
X–axis least input increment).
The thread height and depth of first cut cannot be output
with decimal places.
1 To enable execution of the multiple thread cutting cycle
(G76), the complex turning cycle function of the NC must be
2 Face threading cannot be executed with the multiple thread
cutting cycle (G76). For face threading, G32 is output as
before, even if the multiple thread cutting cycle is selected.