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 parameter was not on the bus although it should be connected according to the MD settings.
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 the machine data configuration and link hardware.
Switch control OFF - ON.
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