Siemens SINUMERIK 840Di Diagnostic Manual page 128

Overview of Alarms
NCK alarms
10758 Channel %1 block %2 curvature radius with variable compensation value
too small
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The current cutter radius compensation (the cutter used) is too large for the programmed path radius.
In a block with variable tool radius compensation, a compensation must be possible either anywhere
or nowhere on the contour with the smallest and the largest compensation value from the programmed
range. There must be no point on the contour in which the curvature radius is within the variable
compensation range.
If the compensation value varies its sign within a block, both sides of the contour are checked,
otherwise only the compensation side.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Use smaller cutters or allow for a part of the cutter radius at the time of contour programming.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
10759 Channel %1 block %2 path is parallel to tool orientation
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: In a block with spline or polynomial interpolation, the corrected path runs in at least one point parallel
to the tool orientation, i.e. the path has a tangent perpendicular to the compensation plane.
Straight lines running parallel to the tool orientation are permissible, as well as circles, with a circle
plane that is perpendicular to the compensation plane (application in smooth retraction from a groove).
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Do not use splines or polynomials when writing the contour section, but straight lines and circles
instead. Divide up the tool piece geometry and deselect the cutter radius compensation between the
various sections.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
10760 Channel %1 block %2 helical axis is not parallel to tool orientation
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: With active tool radius compensation a helix is only permissible if the helix axis is parallel to the tool,
i.e. the circle plane and the compensation plane must be identical.
Reaction: Correction block is reorganized.
Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm at block end.
Remedy: Orient helix axis perpendicular to the machining plane.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
2-128
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006