Yaskawa YASNAC PC NC Programming Manual - Manual (Page 185)

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YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
(2) Operation
There are two types of deep-hole solid tapping operations as indicated below.
• R-point return type (type A)
• Pecking cycle type (type B)
Which of the types should be used can be selected by the setting for parameterpm4016.
(a) R-point return type (type A)
The R-point return type includes the two types of commands such as fixed pitch com-
mand and variable pitch command.
• Fixed pitch command
Example of Programming
G93;
G184 (or G174) X± • • Y± • • Z± • • R± • • W± • • Q • • P • • F • • E • • S • • L • • ;
X • • Y • • • ;
G94; .
Type A pm4016 D4 = 0
Type B pm4016 D4 = 1
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