Yaskawa YASNAC PC NC Programming Manual - Manual (Page 176)

4 - 39
YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
ø Spindle stop
í Positioning at the initial point level (in the G98 mode)
(d) G74 command
If G74 is specified instead of G84, the same operation is executed with the exception that
the spindle rotates in the reverse direction instead of h-ward rotation in step É and that the
spindle rotates in the forward direction instead of reverse rotation in stepÜ.
(e) G94 command
The G93 solid tap mode is canceled when the G94 command is executed. In the solid tap
canceled mode, the G84/G74 cycle is executed in the conventional tapping mode.
Example of programming and description of operation
Example of Programming
NI G92 X0 Y0 Z0;
(M**); . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N2 G93;. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N3 G98 G90; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N4 G84 X100. Y100. Z-50 R–20. F1. S3000 . . . . . . . . . . . . . . . . . . . .
N5 X200. Y200; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N6 X10. Y10.; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N7 G80; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N8 G94; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation
Spindle drive gear range is selected (A/B). If the transmission gears are not provided, A
gear is selected.
Solid tap mode ON
Modal information of the canned cycle
Tapping in the solid tap mode at (100., 100.) in 1 mm pitches.
Tapping in the solid tap mode at (200., 200.) in 1 mm pitches.
Tapping in the solid tap mode at (10., 10.) in 1 mm pitches,
Canceling the canned cycle
Solid tap mode OFF
€
ó
ì
ö
ú
÷
ø
í