
A-79348E
Title
Draw
No.
20/88
page
FANUC Series 30i-MODEL A
Tool center point control
for 5-axis machining
Ed. Date Design Description
Date Jan.16.’04 Design. Apprv.
- When the workpiece coordinate system is used as the programming coordinate
system
When the G43.4 command is specified with parameter WKP (No.19696#5)
set to 1, the workpiece coordinate system that is in use at that point of time
becomes the programming coordinate system.
In this case, the programming coordinate system does not rotate as the table
turns around but remains fixed on the workpiece coordinate system.
Hereinafter, when X, Y, and Z are commanded, the tool moves along a
straight line toward the table (workpiece). For X, Y, Z, specify the end
point location after the rotation of the table, as seen from the programming
coordinate system.
Type 2 cannot be used. Specifying G43.5 when parameter WKP
(No.19696#5) set to 1 causes alarm PS5459.
In the descriptions that follow, the coordinate values of the workpiece
coordinate system used as the programming coordinate system are
represented by X", Y", and Z".
When G43.4 is specified
with C = 0 degrees
Tool center point control in
progress
X"
Y"
Workpiece
coordinate
system
0
45
C
Programming coordinate system
45
Tool center point control in
progress
C-axis reference position
45
90
Workpiece
coordinate
system
X"
Y"
When G43.4 is specified with
C = 45 degrees
C
Programming coordinate system
90
45
X"
Y"
X"
Y"
Fig. 1.1 (g) Programming coordinate system identical to the workpiece
coordinate system
The C-axis reference position is the position where
a movement is made on the C-axis so that a
command value for the C-axis is at the scale
position on the table.