Performance levels that can be achieved

The brake complements a safe braking system consisting of several system components.

The achievable performance level of the resulting safe braking system according to EN ISO 13849-1 is mainly determined by the following points:

• The selected safety structure, category (Cat.)
• Reliability of the used system components (PL, B_10D, MTTF_D, etc.)
• The MTTF_D value is calculated specifically for the application based on the B_10D value for the brake and the switching frequency of the application.
• Diagnostic coverage (DC_avg)
• The diagnostic coverage is fulfilled with a brake test.
• The common cause failure (CCF) with categories 2, 3, and 4.

The achieved performance level must be determined for the selected safe braking system based on an overall evaluation of the system. Observe the characteristic safety values necessary for the brake.

For the characteristic safety values of the SEW‑EURODRIVE components, refer to the product-related documentation as well as the library for the SISTEMA software available for download at www.sew‑eurodrive.com.