S_EDM_Out output

Output signal for controlling the connected contactors. If all the conditions have been satisfied, the S_EDM_Out output reflects the signal state at the S_OutControl input.

Data type: SAFEBOOL

Note
As the enable signal is present at the S_EDM_Out output, this output is also referred to as the enable output.

Connection: Connect this output to the coils of the contactors to be monitored.

The enable signal may only control the process directly if this does not adversely affect the safety-related function.

WARNING

Unintended machine operation

Verify that the enable signal only controls the process directly if this does not adversely affect the safety-related function.

Validate the overall safety-related function, including the start-up behavior of the process, and thoroughly test the application.

Value Description

SAFETRUE The following conditions must be met:

The function block has been activated (input Activate = TRUE)

and the control signal at the S_OutControl input is SAFETRUE

and the connected contactors are functioning correctly (initial state and switching behavior OK)

and no start-up inhibit is active (setting made with S_StartReset)

and the function block has not detected an error.

SAFEFALSE This may be due to one of the following reasons:

The function block is not activated (input Activate = FALSE)

or the control signal at the S_OutControl input is SAFEFALSE

or one of the connected contactors is not functioning correctly (initial state or switching behavior not OK)

or a start-up inhibit is active (setting made with S_StartReset)

or the function block has detected an error.

Value	Description
SAFETRUE	The following conditions must be met: The function block has been activated (input Activate = TRUE) and the control signal at the S_OutControl input is SAFETRUE and the connected contactors are functioning correctly (initial state and switching behavior OK) and no start-up inhibit is active (setting made with S_StartReset) and the function block has not detected an error.
SAFEFALSE	This may be due to one of the following reasons: The function block is not activated (input Activate = FALSE) or the control signal at the S_OutControl input is SAFEFALSE or one of the connected contactors is not functioning correctly (initial state or switching behavior not OK) or a start-up inhibit is active (setting made with S_StartReset) or the function block has detected an error.

Precise details of the behavior of the S_EDM_Out output in relation to the start-up inhibit are given in the following table:

Formal parameter Value Action Start-up inhibit Reset Enable output

S_StartReset SAFETRUE After function block activation/Safety PLC start-up, the start-up inhibit is ... not active No action is required at Reset, ... - to switch the enable output S_EDM_Out to SAFETRUE if there is a valid input signal combination.
- to exit the start-up inhibit.

SAFEFALSE active Reset must be switched from FALSE to TRUE, ...

Formal parameter	Value	Action	Start-up inhibit	Reset	Enable output
S_StartReset	SAFETRUE	After function block activation/Safety PLC start-up, the start-up inhibit is ...	not active	No action is required at Reset, ...	- to switch the enable output S_EDM_Out to SAFETRUE if there is a valid input signal combination. - to exit the start-up inhibit.
S_StartReset	SAFEFALSE		active	Reset must be switched from FALSE to TRUE, ...