Supplementary Conditions And Control System Response For Orientation - Siemens SINUMERIK 840D sl Function Manual
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W1: Tool offset
18.6 Toolholder with orientation capability
can result when the angle of rotation is calculated from one frame. Here, the angle that deviates
least from the programmed angle is selected from the various possible angles.
Note
For more explanations on the programming of tool compensations with toolholder kinematic
and for the system variables see:
References:
Programming Manual, Job Planning
18.6.7
Supplementary conditions and control system response for orientation
Full orientation
For a given data set that describes a certain kinematic, all the conceivable special orientations
can only be displayed when the following conditions are satisfied:
● The two vectors v
vectors must not be equal to zero).
● The two vectors v
● The tool orientation must be perpendicular to the second rotary axis.
Non-defined orientation
If these conditions are not satisfied and an orientation that cannot be achieved by an active
frame is requested with TCOFR, an alarm is output.
Vector/angle of rotation dependencies
If vector v
angle of rotation α1 or α2 must also be set to zero. Otherwise, an alarm is produced. The alarm
is not output until the toolholder is activated, i.e. when the toolholder is changed.
Tool fine compensation combined with orientation
Tool fine compensations and toolholders cannot be combined. The activation of tool fine
compensation when a toolholder is active, and vice versa the activation of the toolholder when
tool fine compensation is active, produces an alarm.
Automatic toolholder selection, RESET
For RESET or at program start, a toolholder can be selected automatically via the machine
data:
MD20126 $MC_TOOL_CARRIER_RESET_VALUE (Active toolholder at RESET)
It is handled similar to the controlled selection of a tool via the machine data:
MD20120 $MC_TOOL_RESET_VALUE (Tool length compensation Power up (RESET/TP-
End))
1466
and v
that describe the rotary axes must also be defined (i.e. both
1
2
and v
must be perpendicular to each other.
1
2
or v
, which describes the direction of a rotary axis, is set to zero, the associated
1
2
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions
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