Siemens SINUMERIK 840Di Diagnostic Manual page 132

Overview of Alarms
NCK alarms
10769 Channel %1 block %2 Illegal surface normal vector with 3D tool radius
compensation
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: In 3D face milling, surface normal vector and path tangent vector must theoretically be perpendicular
to one another, i.e. they must be at 90° to one another. Since both vectors can be programmed
independently of each other, deviations from this angle are possible and allowed. This alarm is
generated when the angle between surface normal vector and path tangent vector becomes less than
the limit angle given by the machine data 21084 CUTCOM_PLANE_PATH_LIMIT.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Modify part program.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
10770 Channel %1 block %2 change of corner type due to change of orientation
with active tool radius compensation
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The type of a corner (inside or outside corner) depends not only on the programmed path but also on
the tool orientation. For this purpose, the programmed path is projected in the plane perpendicularly
to the actual tool orientation and the corner type is determined there. If a change in orientation is
programmed (in one or several blocks) between two traversing blocks, resulting in the type of corner
at the end of the first traversing block being different from that at the start point of the second block,
the above error message is issued.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Modify part program.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
10771 Channel %1 block %2 overflow of local block buffer due to orientation
smoothing
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: This error occurs when more blocks must be buffered than memory space is available.
This error can only occur when the software has been incorrectly configured.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
Remedy: Increase size of local buffer area.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
2-132
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006