ISO/TR 24119:2015

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

OVERVIEW

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.

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 2015
No. of Pages 20
ICS Classification 13.110 Safety of machinery
Committee ISO/TC 199
Available for Purchase For sale in Singapore only
Adoption ISO