Siemens SINUMERIK 828D Function Manual page 688

K2: Axis Types, Coordinate Systems, Frames
10.1 Brief description
Rough and fine offsets
The translation component of frames comprises:
• Rough offset with TRANS, ATRANS and CTRANS
The rough offset is normally specified by the machine setter.
The programmable offsets for all geometry axes and special axes are specified with TRANS.
• Fine offset with CFINE
This can be defined by the machine operator, within certain input limits.
G58, G59 (only 840D sl)
For SINUMERIK 840 D sl,G58 and G59 can be programmed to replace the rough and fine offsets of the
programmable frame on an axial basis. These functions can only be used when the fine offset is configured.
• Rough offset with G58
G58 changes only the absolute translation component (rough offset) for the specified axis; the total of
additively programmed translations (fine offset) is retained.
• Fine offset with G59
G59 is used for axial overwriting of the additively programmed translations for the specified axes that were
programmed with ATRANS.
Frame rotations
Orientations in space are defined via frame rotations as follows:
• Rotation with ROT defines the individual rotations for all geometry axes.
• Solid angles with ROTS, AROTS, CROTS define the orientation of a plane in space.
• Frame rotation with TOFRAME defines a frame with a Z axis pointing in the tool direction.
Scaling
SCALE is used to program the programmable scale factors for all geometry axes and special axes.
If a new scaling is to be based on a previous scaling, rotation, translation or mirroring, then ASCALE must be
programmed.
Mirroring
The axis to be mirrored can be set via the following machine data:
MD10610 MIRROR_REF_AX (reference axis for the mirroring)
Value Meaning
0 Mirroring is performed around the programmed axis.
1, 2 or 3 Depending on the input value, mirroring is mapped onto the mirroring of a specific
reference axis and rotation of two other geometry axes.
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Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions