Siemens Sinumerik 840D sl Programming Manual page 447

Extensions of the system variables for orientable toolholders
User:
Axis name 1
Axis name 2
Identifier
Position
Fine
offset
l Offset vector
1
l Offset vector
2
l Offset vector
3
l Offset vector
4
v rotary axis
1
v rotary axis
2
Note
Explanations of parameters
"m" specifies the number of the toolholder to be programmed.
$TC_CARR47 to $TC_CARR54 and $TC_CARR61 to $TC_CARR63 are not defined and
produce an alarm if read or write access is attempted.
The start/endpoints of the distance vectors on the axes can be freely selected. The rotation
angles α
way, the kinematics of a toolholder can be programmed for any number of possibilities.
Toolholders with only one or no rotary axis at all can be described by setting the direction
vectors of one or both rotary axes to zero.
With a toolholder without rotary axis the distance vectors act as additional tool
compensations whose components cannot be affected by a change of machining plane (G17
to G19).
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Intended use in user measuring cycles $TC_CARR35[m]
$TC_CARR36[m]
$TC_CARR37[m]
$TC_CARR38[m]
Parameters that can be added to the values
in the basic parameters.
$TC_CARR41[m]
$TC_CARR44[m]
$TC_CARR55[m]
$TC_CARR58[m]
$TC_CARR64[m]
$TC_CARR65[m]
, α about the two axes are defined in the initial state of the toolholder by 0°. In this
1 2
7.8 Tool holder kinematics
$TC_CARR39[m]
$TC_CARR42[m]
$TC_CARR45[m]
$TC_CARR56[m]
$TC_CARR59[m]
Tool offsets
$TC_CARR40[m]
$TC_CARR43[m]
$TC_CARR46[m]
$TC_CARR57[m]
$TC_CARR60[m]
447