Configuration 309
No. Phase
1.
&
2.
Risk assessment & Safety requirements
• analysis and evaluating of the risks
• need for risk reduction
• required PL or SIL level
• speed limits and distances for safety functions.
3. Planning of the configuration of the FSO
How to do the safety configuration in a safe way, including configuration,
commissioning, validation and verification.
4. Design of the safety functions
Selected safety functions and related parameter settings must be based on
the risk assessment and the safety requirements of the application. For
example:
• safely limited speed (SLS) trip limits
• settings of I/O’s
• selection of the stopping function
• diagnostics and fault reaction, etc.
5. Commissioning of the FSO
• configuring and fine tuning of the safety parameters of the FSO module
• commissioning of the safety encoder
• commissioning of the PROFIsafe connection to the safety PLC
• electrical installation, etc.
6. Validation of the functional safety system
Validation of the safety functions which are used in the safety system: They
operate as required in the application, and the safety requirements (SRS)
arising from the risk assessment are fulfilled.
If any of the safety functions does not pass the validation tests, it is
necessary to return to the design phase, and modify the safety function so
that it fulfills the safety requirements from the risk assessment. After the
modification, the validation test(s) must be repeated and passed.
See chapter Verification and validation.
7. Validation test report
Validation must be properly documented and stored.
See sectionValidation test reports on page 459.
8. Modification
After the modifications, the validation tests must be repeated and passed.
9. Decommissioning
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