ISO/DTR 24119
Safety of machinery - Evaluation of fault masking serial connection of guard interlocking devices with potential free contacts.
This is currently under committee review, with an expectation that it will be available quite soon as ISO/TR 24119.
This TR has not been published but it will deal with.
The Technical Report illustrates and explains principles of fault masking in applications where multiple interlocking devices with potential free contacts are connected in series to one logic unit which does the diagnostics.
It [...]





























