FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
B–62764EN/01
9. COORDINATE VALUE
AND DIMENSION
127
Specify the radius (the distance between the current position and the
point) to be programmed with an incremental command. The current
position is set as the origin of the polar coordinate system.
Radius
Command position
Actual position
Angle
When the angle is specified
with an absolute command
When the angle is specified
with an incremental command
Command position
Actual position
Angle
Radius
Bolt hole circle
Y
150°
30°
100mm
270°
X
The zero point of the work coordinate
system is set as the origin of the polar
coordinate system.
The XY plane is selected.
N1 G17 G90 G16 ;
Specifying the polar coordinate command and selecting the XY plane
Setting the zero point of the work coordinate system as the origin of the
polar coordinate system
N2 G81 X100.0 Y30.0 Z–20.0 R–5.0 F200.0 ;
Specifying a distance of 100 mm and an angle of 30 degrees
N3 Y150.0 ;
Specifying a distance of 100 mm and an angle of 150 degrees
N4 Y270.0 ;
Specifying a distance of 100 mm and an angle of 270 degrees
N5 G15 G80 ;
Canceling the polar coordinate command
N1 G17 G90 G16;
Specifying the polar coordinate command and selecting the XY plane
Setting the zero point of the work coordinate system as the origin of the
polar coordinate system
N2 G81 X100.0 Y30.0 Z-20.0 R-5.0 F200.0 ;
Specifying a distance of 100 mm and an angle of 30 degrees
N3 G91 Y120.0 ;
Specifying a distance of 100 mm and an angle of +120 degrees
N4 Y120.0 ;
Specifying a distance of 100 mm and an angle of +120 degrees
D Setting the current
position as the origin of
the polar coordinate
system

D Specifying angles and a
radius with absolute
commands
D Specifying angles with
incremental commands
and a radius with
absolute commands

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