Siemens SINUMERIK 840D sl Function Manual page 497

Velocity control
The velocity monitoring function for TRANSMIT is implemented by default during
preprocessing. Monitoring and limitation in the main run are activated:
● In AUTOMATIC mode if a positioning or oscillation axis has been programmed which is
● On changeover to JOG mode
The monitoring function is transferred from the main run back to the preprocessing routine if
the axes relevant to the transformation process are operated as path axes.
The velocity monitoring function in preprocessing utilizes the machine better than the
monitoring in the main run. Furthermore, the main run monitoring function deactivates the
Look Ahead.
Interrupt parts program
If parts program processing is interrupted for JOG, then the following must be noted:
JOG
When JOG is selected, the conventional on-line velocity check is activated instead of the
optimized velocity check.
From AUTOMATIC to JOG
If parts program processing is interrupted when the transformation is active followed by
traversal in JOG mode, then the following must be noted when AUTOMATIC is selected
again:
● The transformation is active in the approach block from the current position to the point of
In AUTOMATIC mode
The velocity-optimized velocity planning function remains active for as long as the axes
relevant to the transformation are traversed in mutual synchronism as path axes. If an axis
involved in the transformation is traversed as a positioning axis, the online velocity check
remains active until the transformation is deactivated or until all axes involved in the
transformation are operating as path axes again. The return to velocity-optimized operation
automatically initiates a STOPRE and synchronizes acyclic block pre-processing with the
interpolation routine.
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
included in the transformation via machine data $MC_TRAFO_AXES_IN_n index 0 or 1.
interruption. No monitoring for collisions takes place.
WARNING
The operator is responsible for ensuring that the tool can be re-positioned without any
difficulties.
Kinematic Transformation (M1)
7.2 TRANSMIT
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