Yaskawa YASNAC PC NC Programming Manual User 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