Siemens alarm 61120: Thread type inside/outside not defined
SINUMERIK function alarm · Siemens 840D/810D powerline
What it means
A thread cutting cycle was called without specifying whether the thread is internal or external. The cycle needs this classification to choose approach, infeed and retraction strategy. Program the thread type parameter accordingly.
Likely causes
- Internal/external parameter omitted in the thread cycle call
- Dialog field skipped during parameter input
- Program converted from a dialect losing the type flag
Triage note: Documented for CYCLE70 in the 11/2006 Diagnostics Guide.
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Send us alarm 61120 with your machine details — typical RFQ turnaround is 24–48h.