Siemens Sinumerik 840D sl Diagnostic Manual page 343

03/2009
21616 [Channel %1: ] Block %2 overlaid motion active at transformation
switchover
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The overlaid motion in the BCS changes its significance because of the transformation change and
can therefore lead to undesired axis movements.
Reaction: Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Take out the overlaid movement.
Program Con- Clear alarm with NC START or RESET key and continue the program.
tinuation:
21617 [Channel %1: ] Block %2 transformation does not allow to traverse the
pole
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The preset curve passes through the pole or a forbidden area of the transformation.
Reaction: Local alarm reaction.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Modify the part program (if the alarm has occurred in AUTO mode).
To escape from the alarm position, transformation must be deselected (it is not enough to try a RESET
if the transformation remains active when RESET is applied).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
21618 [Channel %1: ] As from block %2 transformation active: overlaid motion
too great
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The share of overlaid motion on the transformation-related axes is so high that the path movement
planned by the preparation no longer sufficiently corresponds to the actual ratio for the interpolation.
Strategy of singularities, monitoring of working range limitation and dynamic Look Ahead are possibly
no longer correct.
Reaction: Alarm display.
Remedy: With overlaid motion it is necessary to keep a sufficiently large path safety distance with regard to
poles and working range limitations.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
NCK alarms
2-343