NCU link connection to all other NCUs of the link network has been aborted
All NCUs in the NCU link network exchange data cyclically (sign-of-life). If this alarm occurs, sign-of-life signals have not been received from any other NCUs on the NCU network. This fault in the link can have various causes:
The machine data which configure the NCU link are not the same 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 IPO cycle on all the NCUs.
If necessary, check NCU link-specific alarms first.
Switch control OFF - ON.
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