Machinery Safety 101
25 April, 2019

More E‑Stop Questions

by Doug Nix
in Canada, Control Functions, Emergency Stop, EU European Union, Standards, USA /
10 Comments

Here are some more ques­tions I’ve been asked regard­ing emer­gency stop require­ments. These ones came to me through the IEEE PSES EMC-PSTC Product Com­pli­ance For­um mail­ing list. Primary Sources There… 

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15 May, 2018

Q & A: Can Safety PLCs be used for Lockout?

by Doug Nix
in Functional Safety, Hazardous Energy Control Procedures, ISO 13849, Lockout, Ontario, Q & A /
3 Comments
Disconnect Switch with Lock and Tag

The ques­tion of lock­out and the use of safety PLCs as a means to meet the lock­out require­ments comes up more and more fre­quently these days. Can Safety PLCs be used for… 

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