Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 407)

Axis Motion
Chapter 12
12-35
There are a number of different grinder configurations possible using the
control. The constant surface speed mode (G96) and the RPM spindle
speed mode (G97) can be applied to certain grinder configurations under
certain conditions. To adequately deal with the possibilities, this section is
divided as follows:
If you have a: that: see page:
Surface Grinder does not use the S--word for spindle speed control 12-35
Surface Grinder uses the S--word to control the wheel spindle speed 12-36
Cylindrical Grinder uses the S--word to control the part spindle speed 12-37
Cylindrical Grinder uses the S--word to control the wheel spindle speed 12-40
In addition to the previously listed topics, there are other sections of this
manual with information relative to spindle speed control:
Topic: See page:
Notes on Constant Surface Speed mode 12-42
CSS axis selection 12-45
CSS examples 12-46
RPM spindle speed mode (G97) 12-51
If your surface grinding machine does not use the S--word, then CSS
(programmed with a G96) is not available. RPM spindle speed mode
(programmed with a G97) also does not have any effect since it too acts on
the S--word.
Machines that fall into this category have manual or PAL controlled
spindles. Typically speeds are changed through a manual gear change, a
speed selection switch or special M codes. Much of this depends on your
control’s AMP configuration and PAL program. Refer to the
documentation prepared by your system installer for details.
12.5.1
Surface Grinder,
No S- word