Siemens SINUMERIK 840D Diagnostics Manual page 658

1 Alarms
400252
Definitions:
Reactions:
Remedy:
Program Continuation:
400253
Definitions:
Reactions:
Remedy:
Program Continuation:
400255
Definitions:
Reactions:
Remedy:
Program Continuation:
400256
Definitions:
Reactions:
Remedy:
Program Continuation:
400257
Definitions:
Reactions:
Remedy:
Program Continuation:
400260
Definitions:
Reactions:
Remedy:
Program Continuation:
1-658
Error in internal communication with NCK
An error has occurred during data transmission between the PLC and the NCK (FM-NC
only).
- Alarm display.
NCK restart
Internal
PLC STOP because of SPL system error
After the interruption of the communication between the NCK and the PLC with regard to
the SPL data cross-check, the PLC was switched to STOP with a delay of 5 s.
- Alarm display.
Do no longer start SPL. Check the system components (PLC must be provided with the
correct version of FB15 and with DB18).
Switch control OFF - ON.
Sign of life monitoring NCK2
NCK2 has not contacted the PLC during cyclic operation. Timer of FB1 parameter NCCy-
clTimeout was executed without retrigger. (FM-NC only).
- Alarm display.
NCK restart
Internal
NCK2 has not run up
NCK2 has not run up. NCK has not contacted the PLC. Timer of FB1 parameter
NCRunupTimeout has expired. (FM-NC only).
- Alarm display.
General NCK reset and restart.
Internal
Error in internal communication with NCK2
An error has occurred during data transmission between the PLC and the NCK. (FM-NC
only)
- Alarm display.
NCK restart
Internal
Failure of machine control panel 1
Machine control panel (MCP) at machine control panel interface 1 has failed. Timer of
FB1 parameter MCP1Timeout has expired.
- Alarm display.
Check the connection with the MCP. Do not use timer T0 through T9 in the user program.
Increase the value of timer parameter MCP1Timeout. Set MCP1Cycl to the default value.
Internal
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04