Siemens SINUMERIK 840Di Function Manual page 798

Detailed Description
2.4 Frames
2.4.7 Implicit frame changes
2.4.7.1 Frames and switchover of geometry axes
In the channel, the geometry axis configuration can be changed by switching a
transformation on and off and with the GEOAX() command (R3).
Machine data
MD10602 $MN_FRAME_GEOAX_CHANGE_MODE
can be used to configure, for all channels of the system, whether the current complete frame
is calculated again on the basis of the new geometry axes or whether the complete frame is
deleted.
Four modes can be set via machine data:
• MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 0
• MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 1
• MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 2
• MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 3
2-68
The current complete frame is deleted when geometry axes are switched over, when
transformations are selected and deselected, and on GEOAX().
The modified geometry axis configuration is not used until a new frame is activated.
The current complete frame is calculated again when the geometry axes are switched
over, and the translations, scales and mirrors of the new geometry axes are effective.
The rotations of the geometry axes, which were programmed before the switchover,
remain effective for the new geometry axes.
The aspects described in the Chapter "Frames for selection and deselection of
transformations" are relevant to TRANSMIT, TRACYL and TRAANG.
References:
/FB1/ Description of Functions, Basic Machine; Axes, Coordinate System, Frames (K2);
Chapter: Frame for selection and deselection of transformations
The current complete frame is calculated again when the geometry axes are switched
over, and the translations, scales and mirrors of the new geometry axes are effective. If
rotations are active in the current basic frames, the current settable frame or the
programmable frame before the switchover, it is aborted with the alarm "Frame:
Geometry axis switchover not allowed".
The aspects described in the Chapter "Frames for selection and deselection of
transformations" are relevant to TRANSMIT, TRACYL and TRAANG.
References:
/FB1/ Description of Functions, Basic Machine; Axes, Coordinate System, Frames (K2);
Chapter: Frame for selection and deselection of transformations
The current frame is deleted when selecting and deselecting transformations.
With GEOAX(), the current complete frame is calculated again and the translations,
scales and mirrors of the new geometry axes come into effect.
The rotations of the geometry axes, which were programmed before the switchover,
remain effective for the new geometry axes.
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0