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Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set User Manual

Page 519

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Dresser/Wheel Radius Compensation

Chapter 15

15-31

Selecting a dresser/wheel offset number T0000 in a program does not
cancel radius compensation and does not generate an exit move. Radius
compensation continues on as if a dresser/wheel radius had been changed
to a radius of zero. See page 15-51 on changing dresser/wheel radius. If
T0000 is the active dresser/wheel radius, the exit move is equal to the
programmed dresser/wheel path.

Important: An exit move cannot be a circular move (G02 or G03). You
must program all exit moves on a linear path. Any attempt to generate an
exit move using a circular path generates an error.

Example 15.7 shows examples of exit move program blocks.

Example 15.7

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.