Constant surface speed control ON
This function controls automatically the spindle speed as the coordinates are changed during cutting in diametral direction so as to execute cutting by keeping constant the relative speed between tool tip and workpiece. The code G92 can be used to set the maximum and minimum spindle speeds at addresses S and Q, respectively.
G96 is modal (group 17) — it stays in effect until another code of the same group replaces it.
Initial state: a parameter can select G96 as the initial modal condition — what your machine wakes up in depends on that setting.
G96 Ss Pp Rr; .... Constant surface speed control ON
- s: Surface speed
- p: Axis for constant surface speed control
- r: Spindle for constant surface speed control
- G97; .................... Constant surface speed control OFF
- G92 Ss Qq Rr;
- s: Maximum spindle speed
- q: Minimum spindle speed
- r: Spindle for speed range setting
- The default value is “R1” (automatically set if argument R is omitted). In this case
Mazak PROGRAMMING MANUAL for EIA/ISO PROGRAM, manual H747PB0030E, section 10-2 Constant Surface Speed Control ON/OFF: G96/G97, p. 3-11, 10-2, 10-3, 10-4, 10-5. Reference and explanation only — not a reproduction of the manual.