Sinumerik Alarm 28009 NCU link: conflict in bus parameters 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 timer bus configuration and the configuration of the NCU in the alarm parameter.
– Alarm display.
– Interface signals are set.
– NC not ready.
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
Check machine data configuration.
Switch control OFF – ON.
- Siemens Diagnostics Guide by Siemens