prBAS ISO/TR 24119:2025

Safety of machinery — Evaluation of fault masking serial connection of interlocking devices associated with guards with potential free contacts

General information

Status:Project

Number of pages:24

Adoption method:Korice

Language:engleski

Edition:1.

Realization date:16.10.2024

Forseen date for next stage code:30.10.2024

Technical committee:BAS/TC 40, Machinery and tools

ICS:

13.110, Safety of machinery

Abstract

ISO/TR 24119:2015 illustrates and explains principles of fault masking in applications where multiple interlocking devices with potential free contacts (B1 to Bn) are connected in series to one logic unit (K) which does the diagnostics (see Figures 1 to 7). It further provides a guide how to estimate the probability of fault masking and the maximum DC for the involved interlocking devices. This Technical Report only covers interlocking devices in which both channels are physical serial connections.

Lifecycle

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Original document and degree of correspondence

ISO/TR 24119:2015, identical

Work material

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