Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 539)

Dresser/Wheel Radius Compensation
Chapter 15
15-51
If a dresser/wheel becomes excessively worn, broken, or for any other
reason requires the changing of the programmed dresser/wheel radius,
radius compensation should be canceled and re-initialized after the
dresser/wheel has been changed. See page 3-4 on changing the
dresser/wheel radius offset value and page 13-1 on changing the active
dresser/wheel offset number.
Figure 15.45 through Figure 15.47 are representations of the paths taken
after programming a change in dresser/wheel radius. Assume in these
figures that the programmed change to the dresser/wheel radius is entered
in block N11 that also contains the motion as described in the figures.
The path taken when changing dresser/wheel radius depends on the move
immediately before the change in radius was programmed, the move that
the change in radius was programmed in, and whether any generated
motion blocks were made between these dresser/wheel paths.
Figure 15.45 describes the path when the programmed moves are
linear-to-linear.
Example 15.14
Linear-to-Linear Change in Dresser/Wheel Radius
When the control generates blocks When the control does not generate
blocks
N10 X10.Z5.G1T0100; N10 X10.Z10.G1T0100;
N11 X-5.Z3.T0200; N11 Z20.T0200;
N12 Z20.G42; N12 X0.Z30.;
15.7.4
Changing Dresser/Wheel
Radius During
Compensation