
B–63503EN–1/01
11. PROGRAM COMMAND
601
G17 (G18 or G19) : Select the plane in which contains the figure to be
rotated.
α_β_ Absolute command for two of the x_,y_,and Z_ axes that
correspond to the current plane selected by a
command (G17, G18, or G19). The command specifies
the coordinates of the center of rotation for the values
specified subsequent to G68.
R_ Angular displacement with a positive value indicates
counter clockwise rotation. Parameter 5400#0
selects whether the specified angular displacement is
always considered an absolute value or is considered an
absolute or incremental value depending on the specified
G code (G90 or G91).
Least input increment : 0.001 deg
Valid data range : –360.000 to 360.000
G68 (G68.1)α_β_R_ ; Start rotation of a coordinate system.
Coordinate system rotation mode
(The coordinate system is rotated.)
G69 (G69.1); Coordinate system rotation cancel command
FORMAT
MEANING OF COMMAND
G17
G18
G19
Note:G68/G69 for M series, G68.1/G69.1 for T series.
(α,β)
Angle of rotation
Center of
rotation
0
Rotation plane G17
Y
X
R
Fig. 11.11 (b) Coordinate system rotation