Siemens SINUMERIK 840DE

Path Action
5.2 Exact stop (G60, G9, G601, G602, G603)
Fundamentals
5-4 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
5.2 Exact stop (G60, G9, G601, G602, G603)
Function
The exact positioning stop functions are used to machine sharp outside corners or to finish
inside corners to size.
With the exact stop criteria exact stop window fine and exact stop window coarse, you
determine how accurately the corner point is approached and when the change to the next
block takes place. At interpolation end you can initiate the block change at the block end
when the control has calculated a set speed of zero for the axes involved.
Programming
G60
Or
G9
Or
G601
Or
G602
Or
G603
Parameters
G60 Exact stop, modal
G9 Exact stop, non-modal
G601 Step enable if positioning window fine reached
G602 Step enable if positioning window coarse reached
G603 Step enable if setpoint (end of interpolation) reached
Exact stops fine and coarse can be defined for each axis in machine data. The velocity up to
reaching the accurate destination position at the end of the block is decelerated to zero.
Note
G601, G602 and G603 are only effective if G60 or G9 are active.
Example
N5 G602 ;Exact stop window coarse
N10 G0 G60 Z... ;Exact stop, modal
N20 X... Z... ;G60 continues to act
...
N50 G1 G601 ;Exact stop window fine
N80 G64 Z... ;Switching over to continuous-path mode
...