Siemens SINUMERIK 840D Diagnostics Manual page 412

1 Alarms
28004
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
28005
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
28007
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
1-412
NCU link: NCU %1 of the link network is not on the bus
%1 = NCU number
Error message of the NCU link module. When the NCU link was powered up, the local
NCU (indicated by the alarm) detected that the NCU with the number in the alarm param-
eter was not on the bus although it should be connected according to the MD settings.
This fault in the link can have various causes:
• Defective hardware.
• The machine data which configure the NCU link are not identical on all NCUs.
• An identical interpolator cycle time has not been selected on all NCUs.
- NC not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Check the machine data configuration and link hardware.
Switch control OFF - ON.
NCU link: NCU %1 of the link network not running synchronously
%1 = NCU number
Error message of the NCU link module. When the NCU link was powered up, the local
NCU (indicated by the alarm) detected that the NCU with the number in the alarm param-
eter was not running synchronously.
This fault in the link can have various causes:
• The machine data which configure the NCU link are not identical on all NCUs.
• An identical interpolator cycle time has not been selected on all NCUs.
- NC not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Check machine data configuration.
Switch control OFF - ON.
NCU link: conflict in configuration data of NCU %1
%1 = NCU number
Error message of the NCU link module. When the NCU link was powered up, the local
NCU (indicated by the alarm) detected a conflict between its configuration and the config-
uration of the NCU in the alarm parameter.
Example: Machine data LINK_NUM_OF_MODULES defines the number of nodes on the
NCU link network. The alarm occurs if this MD has a different setting on different NCUs.
- NC not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Check machine data configuration.
Switch control OFF - ON.
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04