Internal safe digital output F-DO_STO

The CS..A safety options have one internal safe digital output F‑DO_STO for switching the device-internal STO function of the inverter.

A maximum switching frequency of 10 Hz is permitted for the internal safe digital output F-DO_STO. The switching state of the safe internal digital output F-DO_STO must be stable on "1" or stable on "0" at least once within 60 seconds for at least 2 seconds (2.5 seconds with activated extended diagnostics).

The internal safe digital output F‑DO_STO is always operated in the connection type "two-channel sourcing output" and must only be used for the STO function of the inverter. If the diagnostics implemented for the internal safe digital output F‑DO_STO detects a fault, the error response "output error" occurs, which disables all outputs.