Siemens SINUMERIK 840Di Diagnostic Manual page 122

Overview of Alarms
NCK alarms
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 Clear alarm with NC START or RESET key and continue the program.
Continuation:
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 Clear alarm with NC START or RESET key and continue the program.
Continuation:
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 Clear alarm with NC START or RESET key and continue the program.
Continuation:
2-122
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006