The Heidenhain iTNC 530 control provides detailed error messages to help diagnose issues ranging from simple programming mistakes to critical hardware failures. Common Processor and Memory Errors
He re-read the list’s footnote for 4623: Note: Intermittent signal may indicate RF interference or ground loop.
Alarm 1800 — Main Supply Undervoltage/Overvoltage
Incomplete Unit Definition (smarT.NC): In the smarT.NC mode, this error often triggers if a machining unit is defined without its corresponding contour description (.HC file) or point table (.HP file).