Yaskawa YASNAC PC NC Programming Manual - Manual (Page 189)

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YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
ç Dwell is executed according to the P command,
Starting the spindle in the reverse direction; Z-axis retraction to the R-point level at the
specified feedrate
In the G98 mode: Positioning at the initial point level
In the G98 mode with a W command: Positioning at the W-point level
In the G99 mode: Cycle completes at the R-point level.
The tapping operation is executed in the fixed pitch cycle if I = 0, or there is no J command.
If K = 0, or there is no K command, alarm 0162 “LACK OF ADDRESS” occurs.
(b) Pecking cycle type (type B)
The pecking cycle type includes the two types of commands such as fixed pitch command
and variable pitch command.
• Fixed pitch command
Example of Programming
G93;
G184 (or G174) X± • • Y± • • Z± • • R± • • W± • • Q • • C • • P • • F • • E • • S • • L • • ;
X • • Y • • • ;
G94;
G93/G94 Solid tap mode ON, G94: Solid tap mode OFF
G184/G174 Deep-hole solid tap, G174 Reverse deep-hole solid tap
X, Y Hole position (mm, inch)
Z
Distance from the R-point level to the bottom of the hole, or the position of
the hole bottom (mm, inch)
R R-point level (mm, inch)
W W-point return level (mm, inch)
Q Depth of feed in each infeed operation (mm, inch)
P Dwell time at the Z-point level (bottom of the hole) (see)
F Thread pitch (mm/rev, inch/rev)
E Feedrate multiplication ratio for retraction to the R-point level
S Spindle speed (r/min)
L Number of repetitions
C C-point level (mm, inch)
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