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9.3
PROFIsafe errors
The following errors can also occur:
– PROFIsafe system errors
“Diagnostic messages for parameter errors for PROFIsafe” on page 81
.
– PROFIBUS or PROFINET system errors. For information on these errors, refer to the
documentation for the system used.
9.4
Acknowledging an error
Acknowledgment
•
Remove the cause of the error.
•
Acknowledge the diagnostic message.
Parameterization errors cannot be acknowledged. In this case, proceed as follows:
•
Check the parameterization.
•
Adapt the parameterization.
•
Download the new data record.
WARNING: Acknowledgment may result in a hazardous system state
With the exception of a few special cases, the acknowledgment of an error immediately
returns the safe input or safe output to the operating state.
•
Before acknowledging an error you must therefore make sure that acknowledgment
will not cause the machine to switch to a hazardous state.
•
When planning the machine or system, make sure that acknowledgment is only pos
-
sible if the danger zone is visible.
WARNING: Unintentional machine startup
Startup/restart following power-up and when there is no longer a demand of the safety
function can result in unintentional machine startup.
•
Please note:
– The Smart Element starts up once the configuration and parameter data record
has been downloaded successfully and internal testing has been completed with
-
out errors.
– A safety-related input is automatically reset to “1” when the safety function trigger
is reset.
•
If you do not want the machine to restart automatically, configure the safety logic
accordingly.
For instructions on error acknowledgment, refer to the documentation for the function
block used.
