Beckhoff AX8911, Документация

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Use of the STO function
AX8911 31 Version: 1.2.0
WARNING
protected wiring
If no test pulses are used on the signals between the outputs of the safety controller and the STO inputs of
the AX8xxx-xxxx, the wiring must be implemented in the form of protected cable laying (see also
EN ISO 13849-2).
Fig. 14: Safe outputs from a third-party manufacturer connected to STO inputs without the use of test pulses
Use of the STO function via a TwinSAFE (FSoE) connection
Additional wiring of the STO inputs is unnecessary if the AX8911 is connected to a TwinSAFE logic via
EtherCAT and the Safety-over-EtherCAT protocol. Here, the signals of the connection to, for example, an
EL6910 are used in the AX8911 logic in order to switch off the STO channels and the brake controller of the
AX8911.
Fig. 15: STO function via TwinSAFE connection