Siemens SINUMERIK 840D sl Commissioning Manual page 807

System error
LED: LED designations:
RDY RUN STOP SU/PF
SF DP1 DP2 OPT
Rapidly flashing Set by PLC/option module
red (2Hz)
Rapidly flashing Set by PLC/option module
red/orange (2 Hz)
7-segment
display
Permanent error:
Temporary error:
NCU operating system (IM7)
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
Meaning
C "crash": The operating system crashes (this approximately corresponds to a Blue
Screen for Windows); details can be found in the system log file.
P "partition": Error when repartitioning
E "error": A read or write error has occurred on the CompactFlash Card (an additional
point is displayed for a write error). It is possible that the CompactFlash Card is
defective and should be replaced.
F "full": The CompactFlash Card is too full, so it is probable that not all of the services
will be able to be successfully started.
When booting, this error is displayed for 1 minute; the system then continues to
boot, however, it can be assumed that problems will occur.
1.4 Displays during system booting
Meaning
Permanent error:
The system is stopped.
Temporary error:
The system may continue to run with
restricted functions.
System settings
7-segment
display
see the following
table
11