Detailed Description
2.4 Tool radius compensation 2D (TRC)
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
89
•
The type of contour suppression is evaluated only in the first traversing block of a
sequence of consecutive traversing blocks.
If both
CUTCONON
and
G41
or
G42
are programmed in the first block, the response to
deactivating contour suppression is determined by
CUTCONON
.
Changing from
G41
to
G42
or vice versa makes sense in this case as a means of
changing the compensation side (left or right of the contour) when restarting.
A change of compensation side (
G41
/
G42
) can also be programmed in a later block, even
if contour suppression is active.
•
Collision detection and bottleneck detection is deactivated for all blocks with active
contour suppression.
2.4.11
Alarm behavior
Alarm during preprocessing
If a tool radius compensation alarm is output during preprocessing, main-run machining
stops at the next block end reached, i.e., usually at the end of the block currently being
interpolated (if Look Ahead is active, once the axes have come to a stop).
Alarms for preprocessing stop and active tool radius compensation
Tool radius compensation generally requires at least one of the following traversing blocks
(even more for bottlenecks) to determine the end point of a block. Since the preprocessing
stop of such a block is not available, traversing continues to the offset point in the last block.
Correspondingly, the offset point in the start point is approached in the first block after a
preprocessing stop.
The contour obtained may deviate considerably from the one that would result without
preprocessing stop. Contour violations in particular are possible. Therefore the following
setting data was introduced:
SD42480 $MC_STOP_CUTCOM_STOPRE (alarm response for TRC and preprocessing
stop).
The response of the tool radius compensation remains unchanged compared to the previous
status, and/or an alarm is output for preprocessing stop during active tool radius
compensation and the program is halted, depending on the value.
The user can acknowledge this alarm and continue the NC program with NC start or abort it
with
RESET
.
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 ...