Siemens SINUMERIK 828D Programming Manual page 356

Transformations
6.6 Compression of the orientation (COMPON, COMPCURV, COMPCAD)
Activation/deactivation
Compressor functions are activated using the modal G codes
COMPOF
See "NC block compression (COMPON, COMPCURV, COMPCAD) (Page 248)".
Note
Orientation motion is only compressed when large radius circular interpolation is active (i.e.
tool orientation is changed in the plane which is determined by start and end orientation).
Large radius circular interpolation is executed under the following conditions:
• MD21104 $MC_ORI_IPO_WITH_G_CODE = 0,
• MD21104 $MC_ORI_IPO_WITH_G_CODE = 1 and
356
terminates the compressor function.
ORIWKS is active and
the orientation is programmed as a vector (with A3, B3, C3 or A2, B2, C2).
ORIVECT or ORIPLANE is active.
The tool orientation can be programmed either as a direction vector or with rotary axis
positions. If one of the G-codes
orientation angles (
PO[PHI]
be executed.
or
ORICONxx ORICURVE
and ) are programmed, no large circle interpolation will
PO[PSI]
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
, or
COMPON COMPCURV
is active, or if polynomials for the
.
COMPCAD
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