System Design & Validation

Wieland supports and advises you from the planning stage right through to start-up throughout the entire life cycle of a machine or production system. The broad portfolio of safety switching devices covers all important safety functions and fulfills even complex customer requirements.

The functional safety of a machine can be verified by consulting European norms EN ISO 13849-1 or EN 62061. Both EU norms are harmonised under the new machinery directive, whereby EN ISO 13849-1 is replacing the old EN 954-1 permanently

Risk assessment according to EN ISO 13849-1

As the successor standard to EN 954-1, EN ISO13849-1 is based on the known categories. EN ISO 13849-1 deals with the complete safety functions, including all the devices involved in the their design.

EN ISO 13849-1 makes a quantitative assessment of the safety functions. Using the categories as a basis, the so-called Performance Levels (PL) are applied for this purpose.

Safety assessment according to EN/IEC 62061

In electrical control technology according to EN/IEC 62061, safety requirements can be divided into so-called Safety Integrity Levels (SIL). The risk assessment takes into account the severity of the injury (S), the frequency and duration of the exposure to the hazard (F), the probability of occurrence of a potentially hazardous incident (W), and the possibility of avoiding or limiting the damage (P). Hence, at the highest protection level SIL 3, the safety function must be maintained at all times.

With expertise and experience in many different areas of the market. Wieland offers support and training for many different industry or machine related applications and the associated standards.