
4.DESCRIPTION OF PARAMETERS B-63530EN/03
- 390 -
PLS The polar coordinate interpolation shift function is:
0 : Not used.
1 : Used.
Conventionally, the origin of the workpiece coordinate system in polar
coordinate interpolation was always fixed to the center of the rotary
axis. By this parameter setting, the workpiece coordinate system can
also be shifted in polar coordinate interpolation. This enables
machining using the workpiece coordinate system with a desired point
which is not the center of the rotary axis set as the origin of the
coordinate system in polar coordinate interpolation.
In polar coordinate interpolation mode, specify coordinates X-C (or
Y-A or Z-B) in the workpiece coordinate system with the origin set to
the center of rotary axis C (or A or B) set on each polar coordinate
interpolation plane in the following format:
G12.1 X_ C_ ;
(Polar coordinate interpolation with the X-axis and C-axis)
G12.1 Y_ A_ ;
(Polar coordinate interpolation with the Y-axis and A-axis)
G12.1 Z_ B_ ;
(Polar coordinate interpolation with the Z-axis and B-axis)
X
C
c
x
Center of the C-axis
Origin of the
workpiece
coordinate system
G12.1 Xx Cc ;
Example for polar coordinate interpolation with the X-axis and C-axis
NOTE
Carefully issue a command to shift the polar
coordinate interpolation coordinate system with this
parameter disabled because the command is
recognized as a move command and the machine
operates.
5460 Axis (linear axis) specification for polar coordinate interpolation
5461 Axis (rotary axis) specification for polar coordinate interpolation
[Data type] Byte
[Valid data range] 1, 2, 3, . . . Number of controlled axes
These parameters set controlled axis number of linear and rotary axes
to execute polar interpolation.