Siemens SINUMERIK 840D sl Function Manual page 858

Detailed description
2.4 Frames
Programming global frames
Global frames are programmed analogously, as are channel-specific frames, i.e., global
basic frames are programmed with $P_NCBFR[n] and global settable frames with
$P_UIFR[n].
Geometry axis, channel axis and machine axis identifiers can be used as axis identifiers for
frame program commands. If there is no machine axis for the channel axis on the NCU,
programming with channel axis identifiers is rejected with the alarm 18314 "Frame: Type
conflict". Channel-specific frames can be programmed with geometry axis, channel axis and
machine axis identifiers. If there is no corresponding channel axis for the machine axis on
the NCU, programming with machine axis identifiers is rejected with the alarm 18314
"Frame: Type conflict". If frame components are applied to a machine axis or a channel axis,
which is also a geometry axis, the corresponding geometry axis components will also be
simultaneously modified.
Example:
$P_NCBFR[0] = CTRANS( ax1, 10 )
$P_NCBFR[0] = CTRANS(x, 10)
$P_NCBFR[0, ax1, FI ] = 0.1
$P_NCBFR[0, x, FI] = 0.1
Rotations cannot be used on global frames. The programming of a rotation is denied with
alarm: "18310 Channel %1 Block %2 Frame: rotation not allowed" is displayed.
It is not possible to program chaining of global frames and channel-specific frames, and any
attempt at this is rejected with the alarm 18314 "Frame: Type conflict". All global frames and
channel-specific frames are internally chained to the complete frame. This takes place in the
channel and only with all channel axes known in the channel. The assignment of a frame
with rotation components to a global frame is denied with alarm "Frame: Rotation not
allowed".
Example:
$P_NCBFR[0] = CTRANS( x, 10 ):CROT( y, 45
)
The following frames are channel-specific:
$P_UBFR, $P_BFRAME, $P_CHBFR[n],
$P_CHBFRAME[n], $P_NCBFRAME[n],
$P_ACTBFRAME and $P_ACTFRAME
These frames can contain rotation components.
These frames only affect the channel that has been set.
With SW 5.1, attempts to program a channel axis, which is also a link axis, is rejected with
alarm "14092 Channel %1 block %2 axis %3 is wrong axis type". An axis can be
programmed only if it physically exists on the NCU.
74
; Faulty assignment on the global basic frame
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0