Compression Of The Orientation Compon (A - Siemens SINUMERIK 840D sl Programming Manual

Transformations
7.6 Compression of the orientation COMPON (A..., B..., C..., THETA)
7.6 Compression of the orientation COMPON (A..., B..., C..., THETA)
7.6
Function
NC programs in which the orientation is programmed by means of direction vectors can be
compressed if kept within specified limits. The compressor can only be used for orientations
in conjunction with an orientation transformation.
Machine manufacturer
The orientation movement is only compressed if large-radius circular interpolation is active
and depends, therefore, on the G code for orientation interpolation. This can be set via
machine data, as can the maximum path length and a permissible tolerance for each axis or
for the path feedrate for the compressor function. Please refer to the machine manufacturer's
instructions.
Programming
NC block structure in general
The blocks to be compressed may only contain a block number, linear interpolation G1, axis
addresses, feedrate, and a comment and their program syntax is, therefore, as follows:
N... G1 X=... Y=... Z=... A=... B=...
F=...
The position values can be entered directly, e.g., X90, or indirectly via parameter settings
X=R1*(R2+R3).
With active orientation transformation TRAORI
The tool orientation can be programmed independently of the kinematics.
On a machine with 3-axis to 5-axis transformation, the following applies:
N... TRAORI
A3=... B3=... C3=...
A2=... B2=... C2=...
7-44
;Comment
;Direction vector
;Euler angle or RPY angle
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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