EU Robotics Archives | Machinery Safety 101

26 June, 2017

ISO 13849 – 1 Analysis — Part 8: Fault Exclusion

in Canada, CE Mark, Control Functions, Control Reliability, Emergency Stop, EU Robotics, Functional Safety, How to, Interlocks, International Robotics, ISO 13849, North American Robotics, Robotics, Standards /

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This entry is part 9 of 9 in the series How to do a 13849 – 1 analysis

Post updated 2019-07-24. Ed. Fault Consideration & Fault Exclusion ISO 13849 – 1, Chapter 7 [1, 7] discusses the need for fault consideration and fault exclusion. Fault consideration is the process of examining the components and sub-systems used in the safety-related part of the control system (SRP/CS) and making a list of all the faults that could occur in each…

1 June, 2012

Interlocking Devices: The Good, The Bad and the Ugly

by Doug Nix

in Canada, CE Mark, Components, Control Functions, Control Reliability, EU European Union, EU Robotics, Guards and Guarding, Hierarchy of Controls, Interlocks, Interlocks, International, International Robotics, ISO 13849, North American Robotics, Ontario, Robotics, USA /

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This entry is part 1 of 7 in the series Guards and Guarding

Note: A shorter version of this article was published in the May-2012 edition of Manufacturing Automation Magazine. When designing safeguarding systems for machines, one of the basic building blocks is the movable guard. Movable guards can be doors, panels, gates or other physical barriers that can be opened without using tools. Every one of these guards…

6 August, 2010

Five things most machine builders do incorrectly

by Doug Nix

in Canada, CE Mark, Control Reliability, EU Robotics, Functional Safety, Guards and Guarding, Interlocks, International Robotics, North American Robotics, Robotics, Top 5 Lists /

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Five things that most machine builders fail to do. With a Sixth Bonus failure!

6 March, 2009

Emergency Stop – What’s so confusing about that?

by Doug Nix

in Canada, CE Mark, Complementary Protective Measures, Control Functions, Control Reliability, Emergency Stop, EU European Union, EU Robotics, International Robotics, North American Robotics, Ontario, Robotics, USA /

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This entry is part 1 of 16 in the series Emergency Stop

I get a lot of calls and emails asking about emergency stops. This is one of those deceptively simple concepts that has managed to get very complicated over time. Not every machine needs or can benefit from an emergency stop. In some cases, it may lead to an unreasonable expectation of safety from the user, which can lead to injury if they don’t understand the hazards involved. Some product-specific standards