Motion commands
4.20 Approaching a fixed point (G75)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
187
X1= Y1= Z1=
Machine axes to be traversed to the fixed point
Machine axis addresses X1, Y1 ...
Here, you specify with value 0 the axes, with which the point is to be
approached simultaneously. Each axis traverses at the maximum
axial velocity.
Note
Two fixed point positions per machine axis can be specified in the machine parameters.
G75 is non-modal.
G75 "Approach fixed point" applies all offset values (DRF, external ZO and overlaid motion).
The fixed point corresponds to the actual value in the MCS.
Changes to the DRF and external zero offset while the G75 block is being preprocessed and
executed in the main run are not applied. You should prevent this problem by programming
STOPPRE in front of the G75 block.
Kinematic transformation must be deselected before fixed point approach is performed.
Example
The tool change location is a fixed point, which is defined in the machine data.
This point can be approached in any NC program with G75.
N10 G75 FP=2 X1=0 Y1=0 Z1=0
;Retract from fixed point 2 on X, Y and Z,
;e.g., for tool change
N20 G75 X1=0
;Approach fixed point X1
N30 M30
;End of program
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