Siemens Sinumerik 840D sl Programming Manual page 357

Requirements
The following requirements must be satisfied to approach fixed points with G75:
● The fixed-point coordinates must have been calculated exactly and written to machine data.
● The fixed points must be located within the valid traversing range (→ note the software limit
switch limits!)
● The axes to be traversed must be referenced.
● No tool radius compensation must be active.
● A kinematic transformation may not be active.
● None of the axes to be traversed must be involved in active transformation.
● None of the axes to be traversed must be a following axis in an active coupling.
● None of the axes to be traversed must be an axis in a gantry grouping.
● Compile cycles must not activate motion components.
Syntax
G75 <axis name><axis position> ... FP=<n>
Meaning
G75:
<axis name>:
<axis position>:
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Fixed point approach
Name of the machine axis to be traversed to the fixed point
All axis identifiers are permitted.
The position value has no significance. A value of "0" is, therefore, usually
specified.
Supplementary commands
15.5 Approaching a fixed point (G75)
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