
PROGRAMMING
B–64144EN/01
14. COMPENSATION FUNCTION
271
In coordinate system rotation mode, G codes related to reference position
return (G27, G28, G29, G30, etc.) and those for changing the coordinate
system (G52 to G59, G92, etc.) must not be specified. If any of these G
codes is necessary, specify it only after canceling coordinate system
rotation mode.
The first move command after the coordinate system rotation cancel
command (G69) must be specified with absolute values. If an incremental
move command is specified, correct movement will not be performed.
N1 G92 X*5000 Y*5000 G69 G17 ;
N2 G68 X7000 Y3000 R60000 ;
N3 G90 G01 X0 Y0 F200 ;
(G91X5000Y5000)
N4 G91 X10000 ;
N5 G02 Y10000 R10000 ;
N6 G03 X*10000 I*5000 J*5000 ;
N7 G01 Y*10000 ;
N8 G69 G90 X*5000 Y*5000 M02 ;
Tool path when the incremental
command is designated in the N3
block (in parenthesis)
Originally programmed tool path
Center of rotation
(7000,3000)
Tool path after rotation
60,
(–500.0,–500.0)
(0,0)
Fig. 14.8 (c) Absolute/incremental command during
coordinate system rotation
Limitations
D Commands related to
reference position return
and the coordinate
system
D Incremental command
Explanations
Absolute/Incremental
position commands