Yaskawa YASNAC PC NC Programming Manual - Manual (Page 157)

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YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
(b) Switching the G90/G91 mode
As shown in the program given below, only addresses specified later are updated as in
blocks N2 ‡ N3, including the switching of G code from G90 to 91. For addresses not
specified, the position data specified in the preceding blocks are retained.
Table 4.1.1.6 Absolute Position of R- and Z-point Levels
Program
Absolute Position
Remarks
Z = R =
-50. -20. Starting a canned cycle
-50. -30.
Changing the data of X and R. Z-point level specified
in the block immediately before this block is retained.
-80. -30.
Changing the data of Z. R-point level specified in the
block immediately before this block is retained.
-90. -50. Changing the data of R and Z
Cutting tool moves to Z = 0.
(absolute position)
Canceling the canned cycle