Siemens SINUMERIK 840Di Function Manual page 1787

SW 6.3 and higher
If TCOABS was active for the last selection before reset, the behavior is unchanged
compared to previous versions. A different active G code causes the toolholder with
orientation capability to be activated with the frame that was active before the last reset.
Modified toolholder data ($TC_CARR...) are also considered. If these data are unchanged,
the toolholder is activated in exactly the same state as before reset. If the toolholder data
were changed after the toolholder selection before reset, selection corresponding to the last
frame is not always possible. In this case, the toolholder with orientation capability is
selected according to the G-Code (group 42) values valid at this time and the active frame.
MD22530 output of auxiliary functions to PLC
Machine data:
MD22530 $MC_TOCARR_CHANGE_M_CODE
can be set so that, optionally, a constant or an M code is output when the toolholder is
selected. The number of the code is derived from the toolholder number.
References:
/FB1/ Description of Functions, Basic Machine; Output of Auxiliary Functions to PLC (H2)
Toolholder kinematics
The following supplementary conditions must be met for toolholder kinematics:
• Tool orientation in initial state, both angles α
• A permissible position in terms of the axis limits must be achievable.
• For any possible orientation to be set, the two rotary axes must be perpendicular to each
Tool Compensation (W1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
- G17 parallel to Z
- G18 parallel to Y
- G19 parallel to Z
other.
For machines, on which the table is rotated by both axes, the tool orientation must also
be perpendicular to the first rotary axis.
For machines with mixed kinematics, the tool orientation must be perpendicular to the
axis, which rotates the tool, i.e., also the first rotary axis.
2.5 Toolholder with orientation capability
and α zero, as per default setting, even if:
1 2
Detailed Description
2-107