Machinery Safety 101

Free Safety Talks – May 2018

Free Machinery Safety Talks This May we are once again part­ner­ing with Schmersal Canada and Frank­lin Empire to provide free safety talks in South­ern Ontario.  If you are respons­ible for the safety of work­ers using machinery in Ontario, Canada, ensur­ing their safety is a key pri­or­ity for you every day. Under­stand­ing your respons­ib­il­it­ies is vital to…

Read More

Brexit is such a waste

Brexit: UK and EU Flags against a blue sky

This morn­ing I read news of the tests that the May Gov­ern­ment plans to use when assess­ing the Brexit deal they are try­ing to nego­ti­ate with the EU. The @CommonsEUexit report on the UK/EU future rela­tion­ship has just been pub­lished. Here are its “key tests” for judging a future deal. Full text of the report here –…

Read More

CE, Brexit, and Authorised Representatives

Brexit: UK and EU Flags against a blue sky

CE, Brexit and Author­ised Rep­res­ent­at­ives We’re just passing the T‑1 year mark on the UK’s jour­ney towards leav­ing the EU. Some of my read­ers are “Leav­ers”, while oth­ers are “Remain­ers”, but for every­one liv­ing in the UK or doing busi­ness with the UK, there are many ques­tions that remain unclear. To be fair, some of the…

Read More

CETA in force!

Image with the Canadian and EU flags blending together.

CETA comes into force today, 21-Sep-2017 If you are unfa­mil­i­ar with CETA, the Com­pre­hens­ive Eco­nom­ic and Trade Agree­ment, this ground­break­ing trade agree­ment between Canada and the European Uni­on will be a game-changer for Canada. Until today, the actu­al date for imple­ment­a­tion of the agree­ment has been a mov­ing tar­get. There were at least two pre­vi­ous dates announced…

Read More

Online Training Centre Opens

Adult learners in class

Online Train­ing Centre Opens You’ve been chal­lenged to start doing risk assess­ments on your machine designs, but you don’t know where to start. Per­haps you’ve bought a few stand­ards or a book or two, hop­ing to fig­ure it all out, but you nev­er seem to be able to stay focused long enough to get what you need…

Read More

Emergency Stop Failures

This entry is part 13 of 16 in the series Emer­gency Stop

I am always look­ing for inter­est­ing examples of machinery safety prob­lems to share on MS101. Recently I was scrolling Reddit/r/OSHA and found these three real-world examples. Broken Emer­gency Stop But­tons The first and most obvi­ous kinds of fail­ures are those res­ult­ing from either wear out or dam­age to emer­gency stop devices like e‑stop but­tons or pull…

Read More

Safe Drive Control including Safe Torque Off (STO)

Graph illustrating STO Function
This entry is part 12 of 16 in the series Emer­gency Stop

Ed. Note: This art­icle was revised 25-Jul-17 to include inform­a­tion on safe stand­still. Safe Drive Con­trol includ­ing STO Motor drives are every­where. From DC vari­able speed drives and index­ing drives, through AC Vari­able Fre­quency drives, servo drives and step­per motor drives, the cap­ab­il­it­ies and the flex­ib­il­ity of these elec­tron­ic sys­tems has giv­en machine design­ers unpre­ced­en­ted…

Read More

How to do a 13849 – 1 analysis: Complete Reference List

This entry is part 8 of 9 in the series How to do a 13849 – 1 ana­lys­is

Post updated 2019-07-24. Ed. As prom­ised in pre­vi­ous posts, here is the com­plete ref­er­ence list for the series “How to do a 13849 – 1 ana­lys­is”! If you have any addi­tion­al resources you think read­ers would find help­ful, please add them in the com­ments. Copy­right secured by Digi­prove © 2017 – 2018Acknow­ledge­ments: As cited.Some Rights ReservedOri­gin­al con­tent here is pub­lished under these license terms: X License Type:Non-com­mer­cial, Attri­bu­tion,…

ISO 13849 – 1 Analysis — Part 8: Fault Exclusion

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…

ISO 13849 – 1 Analysis — Part 7: Safety-Related Software

General architecture model of software
This entry is part 7 of 9 in the series How to do a 13849 – 1 ana­lys­is

Post updated 2019-07-24. Ed. Safety-Related Soft­ware Up to this point, I have been dis­cuss­ing the basic pro­cesses used for the design of safety-related parts of con­trol sys­tems. The under­ly­ing assump­tion is that these tech­niques apply to the design of hard­ware used for safety pur­poses. The remain­ing ques­tion focuses on the design and devel­op­ment of safety-related soft­ware…

Read More
All original content on these pages is fingerprinted and certified by Digiprove