Functional Safety
As soon as risks do not have to be reduced by inherently safe design but by technical measures, safety functions are usually used. If these control-dependent protective measures are used to safeguard against a hazard, a functional safety concept must always be developed. This involves a three-stage procedure for the safety function:
Identification and specification
During identification and specification, the safety function must be defined in such a way that the risk is reduced to an acceptable level and no serious residual risks remain.
Realization
The realization is then carried out with carefully selected parts and components, which are chosen based on the load, availability and place of use. In the final step, the safety functions must be validated in order to check and document whether the designed concept has been implemented as planned.
Validation
A proof of availability is also created for each safety function. This proof provides information about the quality of the components and parts that implement the safety function. The degree of availability of the components is based on the risk to be mitigated. Depending on the classification and industry, an assessment is made according to:
- Performance level in accordance with DIN EN ISO 13849
- Safety Integrity Level according to IEC 61508 or IEC 61511
In addition to the tools commonly available on the market, we can also carry out an individual verification of availability for special requirements.