Programmable Offset For Orientation Axes - Siemens SINUMERIK 840D sl Function Manual

F2: Multi-axis transformations
1.10 Orientation axes
1.10.3

Programmable offset for orientation axes

How the programmable offset works
The additional programmable offset for orientation axes acts in addition to the existing offset
and is specified when transformation is activated. Once transformation has been activated, it
is no longer possible to change this additive offset and no zero offset will be applied to the
orientation axes in the event of an orientation transformation.
The programmable offset can be specified in two ways.
1. Direct programming of the offset with TRAORI() when transformation is activated.
2. Automatic transfer of the offset from the zero offset active for the orientation axes when
transformation is activated. This automatic transfer is configured via machine data.
Programming offset directly
When transformation is activated, the offset can be programmed directly as TRAORI(n, x, y,
z, a, b) TRAORI(n, x, y, z, a, b) . The following parameters are available as an
option:
n:
x, y, z
a, b:
These optional parameters can be omitted. However, if they are used for programming
purposes, the correct sequence must be observed. If for example only one rotary axis offset is
to be entered, TRAORI(,,,, a, b) is to be programmed.
For further information about programming, please see:
References: /PGA/Programming Manual Work Preparation, Chapter "Transformations"
Programming offset automatically
As the offset is transferred automatically from the currently active zero offset on the
orientation axes, the effects of zero offset on rotary axes are always the same, both with and
without active transformation. Automatic take-over of offset from zero point offset is possible
via machine data MD24590 $MC_TRAFO5_ROT_OFFSET_FROM_FR_1 = TRUE (Offset of
rotary transformation axes from NPV) for the first machine data, or MD24690
$MC_TRAFO5_ROT_OFFSET_FROM_FR_2 = TRUE (Offset of rotary transformation axes
from NPV) for the second transformation in the channel.
Note
There is no difference between a zero offset on the orientation axes programmed during
active transformation and the previous offset.
If automatic transfer of offset has been activated and a rotary axis offset is programmed at
the same time, the programmed offset value takes priority.
106
Number of transformation n = 1 or 2
Components of the vector for the basic orientation of thetool (generic 5-axis
transformation only).
Offset for rotary axes
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions