Siemens SINUMERIK 840D sl Function Manual page 460

Diagnostics
10.2 NCK safety alarms for SINUMERIK 840D sl
Response
Remedy
Program
continuation
Warning
!
If the axis has not been safely referenced and the user has not issued a user
agreement, then the following applies:
– the safe cams are still not safe
– the safe limit positions are still not active
27001
Parameter
Explanation
10-460
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Alarm display
The SGA "axis safely referenced" is not set. SE is disabled if the safety
actual position has not yet been acknowledged by the user agreement.
If the user agreement is set, SE remains active. The safe cams are
calculated and output, but their significance is limited because referenc-
ing has not been acknowledged.
Move the axis to a known position, change to the "referencing" mode
and press the softkey "Agreement". Check the positions in the agree-
ment screen at the machine. If these correspond to those expected at
the known position, confirm this using the toggle key. If the user agree-
ment has already been set, re–reference the axis.
The user agreement can only be changed in key–actuated switch set-
ting 3 or after entering a password.
The alarm is no longer displayed when the alarm cause has been re-
moved. No other operator actions are required
Axis %1 error in a monitoring channel, Code %2, values:
NCK %3, drive %4
%1 = axis number
%2 = supplementary information, crosswise data comparison index
%3 = supplementary information, comparison value, NCK
%4 = supplementary information, comparison value, drive
The status of the safety–related monitoring functions are cyclically and
mutually compared between the two monitoring channels (NCK and
drive). The comparison is carried out separately for each NCK/drive
combination.
A criterion in a comparison list is compared between the NCK and drive
in each monitoring clock cycle (MD 10091); the next criterion is
compared in the next monitoring clock cycle etc. Once the complete
comparison list has been processed, the comparisons are processed
again from the start. The total comparison time to process the list is
displayed in MD 10092 (factor x MD 10091 – the factor can differ de-
pending on the SW version).
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05.08