Siemens Sinumerik 840D sl Diagnostic Manual page 102

Overview of Alarms
NCK alarms
Definitions: Possible causes:
In a WAB block, the parameter DISR has not been specified or its value is less than or equal to 0.
During approach or retraction with circle and active tool radius, the radius of the internally generated
- WAB contour is negative. The internally generated WAB contour is a circle with a radius which, when
offset with the current offset radius (sum of tool radius and offset value OFFN), yields the tool center
point path with the programmed radius DISR.
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 Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
10743 [Channel %1: ] Block %2 WAB programmed several times
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: An attempt has been made to activate a WAB motion before a previously activated WAB motion was
terminated.
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 Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
10744 [Channel %1: ] Block %2 no valid WAB direction defined
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The tangent direction for smooth approach or retraction is not defined.
Possible causes:
In the program, no block with travel information follows the approach block.
Before a retraction block, no block with travel information has been programmed in a program.
The tangent to be used for WAB motion is vertical to the current machining plane.
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 Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
10745 [Channel %1: ] Block %2 WAB end position not clear
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: In the WAB block and in the following block, the position has been programmed perpendicular to the
machining direction. In the WAB block, no position has been indicated in the machining plane.
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. Either remove the position data for the infeed axis from the WAB block or the
following block, or program a position in the machining plane in the WAB block as well.
Program Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
2-102
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009