Siemens SINUMERIK 840D sl Function Manual page 512

Diagnostics
10.2 NCK safety alarms for SINUMERIK 840D sl
27092
Parameter
Explanation
Response
Remedy
Program
continuation
27093
Parameter
Explanation
Response
Remedy
Program
continuation
10-512
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Communications interrupted for crosswise data comparison
NCK–PLC, error detected by %1
%1 = supplementary information about the detecting monitoring channel
The delay stage (1 s) for the communication monitoring has been ex-
ceeded in the monitoring channel specified in %1 (NCK or PLC). The
other monitoring channel did not send new data within this time.
Alarm display
A STOP D/E is initiated (this can be set using MD
$MN_SPL_STOP_MODE) on all of the axes with safety functionality if
the SPL commissioning phase (MD $MN_PREVENT_SYN-
ACT_LOCK[0,1] not equal to 0) has been completed.
A timer of 5 s is started – after it has expired
– The external NCK–SPL outputs are deleted (cleared)
– the PLC goes to stop.
Do not start the SPL anymore. Check the system components (PLC
must have the correct version of FB15 and have DB18).
Power–down the control and power–up again
Checksum error NCK–SPL, %1, %2, %3
%1 = supplementary information about the type of error
%2 = supplementary information about the reference size
%3 = supplementary information about the current size
The checksum error in the NCK SPL. The file
/_N_CST_DIR/_N_SAFE_SPF was subsequently modified.
The safe programmable logic (SPL) in the NCK may be corrupted. Pa-
rameter %1 provides further information about the type of change:
%1 = FILE_LENGTH: The file length has changed.
%1 = FILE_CONTENT: The file contents have changed.
%2 specifies the variable calculated as the reference (file length,
checksum over file contents),
%3 specifies the current size calculated cyclically.
Alarm display
Check the file and when the file was last changed. Reload the original
file and start the monitoring system again with a power on.
Power–down the control and power–up again
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05.08