
5.COMPENSATION FUNCTION PROGRAMMING B-63944EN-1/02
- 240 -
Rotation angle R (incremental value)
Rotation
center
(
,
)
Z
Rotation angle R (absolute value)
Explanation
- Plane selection G code, G17, G18, or G19
Plane selection G code (G17, G18, or G19) can be specified in a block
ahead of the coordinate system rotation G code (G68.1). Do not
specify G17, G18, or G19 in coordinate system rotation mode.
- Rotation center
If the rotation center (α_, β_) is not specified, the location of the tool
when G68.1 is issued is assumed as the rotation center.
- Rotation angle command
If the rotation angle command (R_) is not specified, the value
specified in parameter No. 5410 is used as the rotation angle.
- Coordinate rotation cancel
The coordinate rotation cancel G code (G69.1) can be specified in the
same block as other commands.
- Tool compensation
Tool compensation, such as tool offset or tool nose radius
compensation, is processed after coordinate system rotation is
performed for a program defining a figure.
G68.1 can be used in either G00 or G01 mode.
Limitation
- Reference position return
A reference position return command G27, G28, G29, or G30 can be
issued only in G69.1 mode.
- Changes to coordinates
Do not attempt to change coordinates in G68.1 mode (commands such
as G50, G54 to G59, and the tool offset command).
- Canned cycles
Coordinate system rotation cannot be used in simple canned cycles,
multiple repetitive canned cycles, or canned drilling cycles.