840D/828D SINUMERIK Operate Page 3
B510
B510
Notes
Section 2
General aspects regarding offsets
The term “Frame” refers to a calculation rule that permits the coordinate
system on the machine to be manipulated.
By means of a programmed instruction the user can, for instance, offset or
scale the specified coordinate system.
Example: N150 TRANS Z-10 Absolute offset
…
N200 ATRANS Z-5 Incremental offset
…
N240 ASCALE X0.5 Scaling of the X-axis
Incremental Scaling factor for the axis
A = Additive
For the programming of frames the following guidelines apply:
Programmed frames refer always to the last work piece zero point acti-
vated in the program, e.g. G54.
The instruction must be included in a single block.
They will be executed in the sequence in which they appear in the pro-
gram.
Instructions that are not preceded by an “A” (e.g. TRANS Z-10) are re-
placing Frames, i.e. they clear all other Frame-instructions used previ-
ously in the program.
The preceding “A“ specifies the additive instructions. They enhance all
active Frame-instructions used so far in the program, in other words,
they do not clear anything (e.g. ATRANS Z-5).
All frame-instructions modally operative.
All active Frames (that is a return to the original work piece zero point)
can be cleared in the program by a replacing Frame (e.g. TRANS ), or
by “M30” or manually with “RESET”.
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