Siemens SINUMERIK 802D sl Dokumentacja Pobierz pdf (Strona 70)

Overview of alarms 06/2007

NCK alarms/ISO alarms

2-70

SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition

10752 Channel %1 block %2 overflow of local block buffer with tool radius

compensation

Parameters: %1 = channel number

%2 = block number, label

Definitions: The tool radius compensation must buffer a varying number of intermediate blocks, in order to calcu-

late 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 without traversing information in the compensation plane

and the number of contour elements added.

The size of the buffer is fixed by the system and cannot be changed via the MDs.

Reaction: Correction block is reorganized.

Local alarm reaction.

Interface signals are set.

Alarm display.

NC Stop on alarm at block end.

Remedy: 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 curvature radii that

are smaller than the compensation radius. (such blocks are divided up into several subblocks).

Program Con-

tinuation:

Clear alarm with NC START or RESET key and continue the program.

10753 Channel %1 block %2 selection of the tool radius compensation only

possible in linear block

Parameters: %1 = channel number

%2 = block number, label

Definitions: Selection of tool 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 advis-

able to write both axes because, as a rule, both axes are traversed when selecting the compensation.

Reaction: Correction block is reorganized.

Local alarm reaction.

Interface signals are set.

Alarm display.

NC Stop on alarm at block end.

Remedy: Correct the NC program and put the compensation selection in a block with linear interpolation.

Program Con-

tinuation:

Clear alarm with NC START or RESET key and continue the program.

10754 Channel %1 block %2 deselection of the tool radius compensation only

possible in linear block

Parameters: %1 = channel number

%2 = block number, label

Definitions: Deselection of tool radius compensation with G40 can only be performed in blocks where the G func-

tion G00 (rapid traverse) or G01 (feed) is active.

In the block with G40, 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 deselecting the compensation.

Reaction: Correction block is reorganized.

Local alarm reaction.

Interface signals are set.

Alarm display.

NC Stop on alarm at block end.

Remedy: Correct the NC program and put the compensation selection in a block with linear interpolation.

Program Con-

tinuation:

Clear alarm with NC START or RESET key and continue the program.

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