Siemens SINUMERIK 840D sl Function Manual page 407

03.06
27005
Parameter
Explanation
Response
Remedy
Program
continuation
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
10.2 NCK safety alarms for Sinumerik 840D sl
Axis %1 error for crosswise data comparison: Static
difference
%1 = axis number
A difference in the actual values was detected using the crosswise data
comparison between NCK and drive monitoring channel. This
difference is greater than the maximum tolerance defined in MD
$MA_SAFE_POS_TOL. This can be checked using the safe position
actual values of the two monitoring channels displayed in the service
screen.
The alarm is only displayed, if monitoring with absolute reference
(SE/SN) has been enabled for the specified axis and if the user
agreement has been set. As soon as the user agreement is deleted or
the actual difference between the two monitoring channels again drops
below the maximum permissible difference, the alarm is cleared.
Alarm display
The user agreement must be deleted if the alarm is present as a
steady-state alarm. When the control is then rebooted, the machine
can be brought into the safe state again and operation resumed by a
new referencing process and setting the user agreement. Prior to
setting the user agreement, the actual position of the axis displayed in
the "User enable" screen must be compared with the current machine
position. This is absolutely necessary to ensure proper functioning of
the safe limit positions (SE) and safe cams (SN).
The user agreement can only be changed in key-actuated switch
setting 3 or after entering a password.
The alarm is no longer displayed when the alarm cause has been
removed. No other operator actions are required.
Diagnostics
actual value
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