Yaskawa YASNAC PC NC Programming Manual - Manual (Page 158)

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YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
(c) Changing the R- and Z-point level in the G91 mode
If R is. specified without Z while a canned cycle is executed in theG91 mode, Z-point
level is recalculated as incremental distance from R-point level.
Table 4.1.1.7 Changes in Incremental Distance from R-point Level to Z-point
Note 1: Z-point position is commanded to be-10.0 in the G91 mode in advance.
2: R-point position is commanded to be-7.0 in the G91 mode in advance.
(5) Specifying the High-Speed Deep Hole Drilling (G73) and Deep Hole Drilling (G83) Codes*
(a) Variable pitch peck feed command
In a deep hole drilling cycle called by G73 and G83, it is possible to specify a variable
pecked feed stroke by using addresses I, J, or K instead of specifying address Q that spec-
ifies a constant peck feed stroke.
I: Initial value of peck feed stroke
J: Decrement value for the second and later peck feeds
K: Final value of peck feed stroke
d: Return stroke at each cut
Program R-point Level Z-point Level
-5.0 -15.0
-7.0 -17.0 (Note 1)
-7.0 (Note 2) -10.0
-4.0 -15.0