Siemens alarm 4010: Invalid identifier used in machine data %1[%2]
SINUMERIK NCK general alarm · Siemens 840D/810D powerline
What it means
While evaluating machine data that define names in NCK tables (machine axes, Euler angles, direction vectors, normal vectors, interpolation parameters, intermediate point coordinates), one of the syntax rules for identifiers was violated. The affected machine data is named in the alarm parameters. Typically appears at power-up after manual editing or a partially loaded commissioning file.
Likely causes
- Illegal characters or name format typed into an axis/table name MD
- Commissioning archive edited incorrectly or truncated during transfer
- Duplicate names or reserved keywords used as identifiers
Triage note: Correct the named machine data and re-power; restore from known-good NC archive if the origin of the corruption is unclear.
Need the part urgently?
Send us alarm 4010 with your machine details — typical RFQ turnaround is 24–48h.