Table of Contents

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Operating principles and typical forms of trapped key
  interlocking system
6 General requirements for the design of Trapped Key
  interlocking device
7 System configuration
8 Information for use
Annex A (informative) - Examples of trapped key interlock
        devices
Annex B (informative) - FMEA analysis - Typical failure
        modes for consideration in trapped key systems
Annex C (informative) - Safety functions and validation in
        accordance with ISO 13849-1 and ISO 13849-2
Annex D (informative) - Selection of trapped key interlocking
        devices
Bibliography

Abstract

Describes principles for the design, selection and application of trapped key interlocking devices and systems for machinery applications, independent of the type of energy used to control them or that they control.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 199