Siemens Sinumerik 810T - Manual (Page 140)

09.91 3 Operating Sequences
3.1.9 TRANSMIT coordinate transformation
3.1.9.2 TRANSMIT function in the various modes
“AUTOMATIC” and “MDI AUTOMATIC” mode:
In this mode the TRANSMIT function is elected and deselected via G functions in the program.
Selection of TRANSMIT: G131
Deselection of TRANSMIT: G130.
On selection of TRANSMIT control initializes the fictitious axes. The NC interpolates only in the
fictitious coordinate system where the axes affected by TRANSMIT are concerned. The
contour between the block final values is defined. Please consult the instructions of the
machine manufacturer to see which axes are involved in TRANSMIT.
“JOG”, “INC”mode:
Definition: Transformation grouping = real and fictitious axes involved in the
transformation
In JOG mode the axes of the transformation grouping can be traversed both in the real and in
the fictitious coordinate system. To be able to traverse a fictitious axis you must first select the
TRANSMIT transformation with G131 in the program. The machine manufacturer must also
have defined that TRANSMIT remain after a RESET (key or mode change), this does not
apply to “AUTOMATIC interrupted.”
Real axes cannot be traversed, if they belong to the transformation grouping. Traverse com-
mands coming from outside for such axes are ignored, without an error message appearing.
If the control recognizes a traverse command for a fictitious axis, it generates the distance-to-
go to the software limit switch of the fictitious axis. If the software limit switch is outside the
permissible working area of the machine tool, the limit switches of the real axes of the group-
ing restrict the fictitious position. If only the real axes are to be traversed, the channel 1
reserved by the transformation must be enabled again (deselection of the transformation via
G130). If a real axis of the transformation grouping is reserved by “feed halt”, this applies to all
axes of the grouping.
During “AUTOMATIC interrupted”, “TEACH IN” or “PLAYBACK” the
transformation grouping cannot be changed.
“REFPOINT” mode:
On a change to “REFPOINT” mode the TRANSMIT function is automatically deselected.
Reference points therefore only exist for real axes and not for fictitious axes.
“REPOS” mode:
After “block search” or “AUTOMATIC interrupted” the contour can only be approached in the
previously selected coordinate system.
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SINUMERIK 810T, GA3 (BN)