Siemens SINUMERIK 840D Series Diagnostics Manual page 97

11.02
Reactions:
Remedy:
Program Continuation:
10752
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
10753
Parameters:
Definitions:
Reactions:
 Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
- Local alarm reaction.
- Alarm display.
- Interface signals are set.
- Correction block is reorganized.
- NC Stop on alarm at block end.
Please inform the authorized personnel/service department. Check the part program and
modify the programming if possible such that inside corners with smaller paths than the
correction value are avoided. (Outside corners are not critical because the equidistants
are lengthened or intermediate blocks are inserted so that there is always a point of inter-
section).
Increase the number of reviewed traversing blocks via machine data 20240
CUTCOM_MAXNUM_CHECK_BLOCKS (default: 3), resulting in an increase in the extent
of calculation and therefore also the block cycle time.
Clear alarm with NC START or RESET key and continue the program.
Channel %1 block %2 overflow of local block buffer with tool radius compensation
%1 = Channel number
%2 = Block number, label
The cutter radius compensation must buffer a variable number of intermediate blocks in
order to enable calculation of the equidistant tool path for each NC block. The size of the
buffer cannot be determined by simple means. It depends on the number of blocks with-
out traversing information in the compensation plane, the number of contour elements to
be inserted and the shape of the curvature in spline and polynomial interpolation.
The size of the buffer is fixed by the system and cannot be changed via the MDs.
- Local alarm reaction.
- Alarm display.
- Interface signals are set.
- Correction block is reorganized.
- NC Stop on alarm at block end.
Please inform the authorized personnel/service department. Reduce the size of the buffer
that has been assigned by modifying the NC program. By avoiding:
• Blocks without traversing information in the compensation plane
• Blocks with contour elements having a variable curvature (e.g. ellipses) and with curva-
ture radii that are smaller than the compensation radius. (Such blocks are divided up
into several subblocks).
Reduce the number of reviewed blocks for collision monitoring (MD 20240
CUTCOM_MAXNUM_CHECK_BLOCKS).
Clear alarm with NC START or RESET key and continue the program.
Channel %1 block %2 selection of the tool radius compensation only possible in
linear block
%1 = Channel number
%2 = Block number, label
Selection of cutter radius compensation with G41/G42 may only be performed in blocks
where the G function G00 (rapid traverse) or G01 (feed) is active.
In the block with G41/G42, at least one axis in the plane G17 to G19 must be written. It is
always advisable to write both axes because, as a rule, both axes are traversed when
selecting the compensation.
- Local alarm reaction.
- Alarm display.
- Interface signals are set.
- Correction block is reorganized.
- NC Stop on alarm at block end.
1 Alarms
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