Siemens alarm F30657: SI CU: PROFIsafe telegram number invalid
SINAMICS S120 drive fault · SINAMICS S120
What it means
The PROFIsafe telegram number set in p9811 is not valid for the selected configuration: when PROFIsafe is enabled (p9801.3 = 1) a number greater than zero must be entered. The fault does not trigger a safety stop response but blocks proper PROFIsafe integration with the upper-level safety controller (e.g. 840D sl safety bridge). Purely a parameterization issue.
Likely causes
- p9811 left at zero although PROFIsafe enabled
- telegram number inconsistent with the PLC/safety project
- safety program downloaded without matching telegram selection
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Send us alarm F30657 with your machine details — typical RFQ turnaround is 24–48h.