Certification; Probability Of Failure - Siemens SINUMERIK 840D sl Function Manual

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Table of Contents

System Features

3.3 Certification

Certification

The safety functions fulfill the requirements according to DIN EN 61508 for use up

to and including SIL2 in an operating mode with a high requirement rate and Cate-

gory 3 as well as PL d acc. to DIN EN ISO 13849–1. The average time up to a

hazardous failure MTTF

depend on the degree of expansion of the system.

The "Safe brake test" function complies with Category 2 acc. to DIN EN ISO

The test certificates and test mark are listed in the Preface.

The attachments to the test certificates with the certified software and hardware

releases are not included in this documentation. If you require the appropriate at-

tachments, then please use the address specified in the corrections/suggestions

sheet (last page).

Additional information on the certification (test certification, PRÜFZERT mark) is

provided in the Preface.

Please contact your local Siemens office on how to calculate PFH values.

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition

and the probability of hazardous failures per hour PFH

Sinamics s120