Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 511)

Cutter Comp/Tool Tip Radius
Chapter 23
23-11
Function
Enter the vector distance from the end-point of a move that creates a
corner, to the point on the next move at which Automatic Corner Override
is to be deactivated.
(DFC stands for Distance From Corner)
Refer to the discussion of the AMP parameter Min Angle for Corner
Override for details.
This is not a per-axis parameter. The distance selected here is applied to
all axes.
Axis Parameter
Number
All [410]
Range
0.00000 to 9999.99999 mm
or
0.00000 to 393.70079 in
Notes
This is a global parameter. The value set here applies to all axes and
processes.
23.2.3
Corner Override Distance
(DFC)