Siemens SINUMERIK 840D Diagnostics Manual page 130

1 Alarms
Definitions:
Reactions:
Remedy:
Program Continuation:
10911
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
10912
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
10913
Parameters:
1-130
On analyzing the path waveforms during preparation, a large local deviation in the velocity
waveform of one or more path axes has been detected relatively to the path velocity. A
situation like that typically occurs near singular positions of the machine kinematics. It
can, however, also be caused by a failed contour or by an FGROUP definition unfavor-
able relatively to the contour. Another reason may be an unfavorable programmed OEM
transformation.
In order to safely avoid axis overloads, path velocity is normally decelerated considerably.
A seemingly machine standstill might occur. As soon as the singular position has been
reached, strong axis movements suddenly occur.
- Local alarm reaction.
- Alarm display.
Division of a block in several smaller ones often provides an improvement.
Clear alarm with the Delete key or NC START.
Channel %1 block %2 transformation prohibits to traverse the pole
%1 = Channel number
%2 = Block number, label
The given curve passes through the pole of the transformation.
- Interpreter stop
- Local alarm reaction.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
Modify part program.
Clear alarm with the RESET key. Restart part program.
Channel %1 block %2 preprocessing and main run might not be synchronized
%1 = Channel number
%2 = Block number, label
The preset positioning axis run cannot be accurately calculated beforehand. The reason
for this is either that the axes involved in the transformation are traversed as positioning
axes or that a transformation pole is circumnavigated too frequently by the curve. The
velocity check is performed starting from this block in the main run. It is more conservative
than with anticipated calculation. The LookAhead function is deactivated. If it is not possi-
ble to take over the velocity check into the main run, part program processing is aborted.
- Alarm display.
No action is usually necessary. The velocity control operates more effectively, however, if
the part program is modified.
• If a transformation pole is circumnavigated several times by the curve, it helps to split up
the block into smaller parts.
• If a positioning axis is the cause, you should check whether the axis can be traversed as
a path axis. The Look Ahead function remains deactivated until preprocessing can be
based on defined conditions again (e.g. as a result of change from JOG->AUTO, tool or
tool edge change).
Clear alarm with the Delete key or NC START.
Channel %1 block %2 negative feed profile is ignored
%1 = Channel number
%2 = Block number, label
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04