Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 509)

Tool Tip Radius Compensation (TTRC)
Function
Chapter 21
21-25
Example 21.9 gives some sample exit move program blocks.
Example 21.9
Sample Exit Move Segments
Assume the current plane to be the ZX plane.
N100X1Z1;
N110X3Z3G40; Exit move.
N100X1Z1;
N110G40;
N120X3Z3; Exit move.
N100X1Z1;
N110G40;
N120...; No axis motion in the current plane.
N130...; No axis motion in the current plane.
N140...; No axis motion in the current plane.
” ”
” ”
N200X3Z3; Exit move.
N100X1Z1;
N110...; No axis motion in the current plane.
N120...; No axis motion in the current plane.
N130...; No axis motion in the current plane.
” ”
” ”
200G40X3Z3; Exit move.
Provided the number of non-motion blocks in the compensation mode has
not exceeded a value selected by your system installer in AMP, all of the
program blocks in Example 21.9 produce the same exit move.
The exit of the cutting tool for type B TTRC takes the shortest possible
path to the end-point of the exit move for inside corners only. For outside
tool corners, the cutting tool always remains at least the radius of the
cutting tool away from the end-point of the last move in compensation.
You can redefine the start-point by using an I- and/or K-word as described
later in this section. The end-point of the exit move is no longer offset to
the left or right.