Siemens SINUMERIK 840DE Programming Manual page 290

Feedrate Control and Spindle Motion
7.13 Constant cutting rate (G96, G961, G97, G971, LIMS)
Note
On loading the block into the main run, all programmed values are transferred into the
setting data.
Deactivate constant cutting rate, G97/G971
After G97/G971 the control interprets an S word as a spindle speed in rpm again. If you do
not specify a new spindle speed, the last speed set by G96/G961 is retained.
• The G96/G961 function can also be deactivated with G94 or G95. In this case, the last
• G97 can be programmed without G96 beforehand. The function then has the same effect
• With G961 and G971 the constant cutting rate can be activated/deactivated.
Rapid traverse G0
With rapid traverse G0, there is no change in speed. Exception: if the contour is approached
in rapid traverse and the next NC block contains a G1, G2, G3 ... path command, the speed
is adjusted in the G0 approach block for the next path command.
7-40
programmed speed S is used for further machining operations.
as G95; LIMS can also be programmed.
Note
The transverse axis must be defined in machine data.
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals