Siemens alarm 61027: Subroutine %4 does not exist
SINUMERIK function alarm · Siemens 840D/810D powerline
What it means
The cycle refers to a contour subroutine named in parameter %4 which cannot be found in program storage. This is typical for contour cycles that read their geometry from a separately programmed contour description. Check the CYCLE62-style contour call and make sure the named routines exist in the active program storage.
Likely causes
- Contour subroutine deleted, renamed or never transferred to the NCK
- Subroutine located in a directory not searched by the cycle
- Typographical error in the contour/subroutine name
Need the part urgently?
Send us alarm 61027 with your machine details — typical RFQ turnaround is 24–48h.