6. Interpolation Functions
6.10 Polar Coordinate Interpolation; G12.1, G13.1
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(8) F command during pole coordinate interpolation
As for the F command in the pole coordinate interpolation mode, whether the previous F
command is used or not depends on that the mode just before G12.1 is the feed per minute
command (G94/G98) or feed per rotation command (G95/G99).
(a) When G94(G98) is commanded just before G12.1
If there is no F command in the pole coordinate interpolation, the previous F command
feedrate will be used.
The feedrate after the pole coordinate interpolation mode is canceled will remain the F
command feedrate issued when the pole coordinate interpolation mode was started or the
final F command feedrate set during pole coordinate interpolation.
The previous F command feedrate cannot be used during pole coordinate interpolation.
(b) When G95(G99) is commanded just before G12.1
The previous F command feedrate cannot be used during pole coordinate interpolation. A
new F command must be issued.
The feedrate after the pole coordinate interpolation mode is canceled will return to that
applied before the pole coordinate interpolation mode was started.
When there is no F command in G12.1
Previous mode
No F command
After G13.1 is canceled
G94(G98)
Previous F is used
←
G95(G99)
Program error (P62)
F just before G12.1 is used
When F is commanded in G12.1
Previous mode
No F command
After G07.1 is canceled
G94(G98)
Commanded F is used
←
G95(G99)
Commanded F is used *1
F just before G12.1 is used
*1) Moves with the feed per minute command during G12.1.
(9) Related
parameters
# Item
Details
Setting
range
1516 mill_ax Milling
axis
name
Set the name of the rotation axis for milling interpolation
(pole coordinate interpolation, cylindrical interpolation).
Only one of the rotation axes can be set.
A to Z
1517 mill_c
Milling
interpolation
hypothetical
axis name
Select the hypothetical axis command name for milling
interpolation (pole coordinate interpolation, cylindrical
interpolation).
0: Y axis command
1: Command rotation axis name
0 / 1
8111 Milling Radius
Select the diameter and radius of the linear axis for
milling interpolation.
0: Radius command for all axes
1: Each axis setting (follows #1019 dia diameter
designation axis)
0 / 1
1533 mill_Pax Polar
coordinate
linear axis
name
Set the linear axis for polar coordinate interpolation.
Axis
name