Approaching A Fixed Point (G75) - Siemens SINUMERIK 840Di sl Programming Manual

Motion commands

4.20 Approaching a fixed point (G75)

• G19: Y/Z plane
Retraction velocity
Retraction with maximum axis velocity.
Can be configured via machine data.
The maximum permissible acceleration/jerk values are used for traversing; they are
configured via the machine data.
Note
POLF with POLFMASK/POLFMLIN are not restricted to thread cutting applications. See
/FB3/Function Manual Special Functions; Coupled Axes and ESR (M3).
4.20 Approaching a fixed point (G75)
Function
G75 can be used to approach fixed points, such as tool change locations, loading points,
pallet changing points, etc.
The positions of the individual points are specified in the machine coordinate system and
stored in the machine parameters.
You can approach these positions from any NC program, irrespective of the current tool or
workpiece position.
Programming
G75 FP= X1=0 Y1=0 Z1=0 U1=0 ...
Parameters
G75
FP=
186
ALF=1 Retraction in Y direction
ALF=3 Retraction in Z direction
Fixed point approach
The fixed point approach is described by a fixed point and axes, which
are to be traversed to the fixed point FP.
Number of fixed point to be approached
Number of the fixed point FP=...
If no fixed point number is specified, fixed point 1 is automatically
approached.
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals