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Feature "Reaction on Device_Fault"dl-permalink__symbolPermalink

This is the web edition of the original ‎⮫ AC500-S safety user manual, version 1.3.2. This web edition is provided for quick reference only. The original safety user manual must be used to meet functional safety application requirements.

According to⮫ [2], annex C.1

Precondition: RIOforFA profile is not activated (F-Parameter F_Passivation = 0, symbolic value "Device/Module").

  1. Set the F-Host input OAD_Nec_C = TRUE (OperatorAcknowledgeDevicefault_Necessary).

    "Reaction on Device_Fault" is activated.

Behavior with OAD_Nec_C = TRUE ("Reaction on Device_Fault" is activated):

In case the F-Host or an F-Device detects a F-(Sub)Module error (Device_Fault = TRUE), fail-safe values will be activated until the error is cleared and acknowledged. The F-Host then sets the output OA_Req_S (= TRUE) as soon as the error has been eliminated and operator acknowledgment is possible. As soon as it is acknowledged (OA_C = TRUE) the F-Host driver will reset the request variable OA_Req_S (= FALSE).

Behavior with OAD_Nec_C = FALSE ("Reaction on Device_Fault" is not activated):

In case the F-Host or an F-Device detects a F-(Sub)Module error (Device_Fault = TRUE), fail-safe values will be activated until the error is cleared. Acknowledgement is not needed.⮫ “Avoid unintended behavior”