Detailed description
2.4 Frames
Basic logic functions: Axes, coordinate systems, frames (K2)
122
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Setting data
SD42980 $SC_TOFRAME_MODE
is, therefore, introduced, which can be used to control the response of
TOFRAME
and
TOROT
.
It can accept values of 0 (inactive) to 3. If the value of the setting data is not zero, the effect
of machine data
MD21110 $MC_X_AXIS_IN_OLD_X_Z_PLANE is overwritten.
The values 1 to 3 have the following meanings:
1:
The new X direction is chosen to lie in the XZ plane of the old coordinate system.
In this setting the angle difference between the old and new Y axis will be minimal.
2:
The new Y direction is chosen to lie in the YZ plane of the old coordinate system.
In this setting the angle difference between the old and new Y axis will be minimal.
3:
The value chosen is the mean value of the two settings, which would have been
chosen with 1 and 2.
Characteristics and expansions:
Settings 1 and 2 are reached by rotating the coordinate system around the Z axis, starting
from any position on the X and Y axis, until the desired setting is reached. Setting 3 is
achieved by executing a rotation whose value is the exact mean of these two angles.
However, this only applies for the case that the old and new Z direction enclose an angle of
less than 90 degrees. With variant 1, both the old and new X axes form an angle of under 90
degrees, with variant 2 the same is true of the Y axis (the relevant axes point in
"approximately" the same direction). If the two Z directions form an angle of more than 90
degrees, however, the conditions of an angle < 90 degrees between the old and new axes
can no longer be met simultaneously for both X and Y. In this case, priority is given to the X
direction, i.e., a mean value is taken from the direction for 1 and the negative direction for 2.
If one of the G codes
TOFRAMEX,TOFRAMEY,TOROTX,TOROTY
is programmed in place of
TOFRAME(Z)
or
TOROT(Z)
, the descriptions for adapting the axis directions perpendicular to
the main direction are also valid for the cyclically exchanged axes. The assignments in the
table below are then valid:
TOFRAME, TOFRAMEZ
TOROT, TOROTZ
TOFRAMEY
TOROTY
TOFRAMEX
TOROTX
Tool direction
(vertical axis)
Z
Y
X
Secondary axis
(horizontal axis)
X
Z
Y
Secondary axis
(ordinate)
Y
X
Z
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
