We offer a selection of technical articles dealing with machine safety. The contributions are from Schmersal employees, both in the US and throughout the world. Many of the articles and whitepapers have appeared in various publications.



The Future of the Industrial Robot
(3/15/2017)

Robots which work “hand in hand” with humans have now found their place safely on to the factory floor. This article discusses the growing acceptance of these collaborative robots, their safety requirements, and how it might affect the use of traditional industrial robots. more

 
Fault Masking
(11/1/2016)

The article discusses a potential problem with the practice of wiring safety devices in series: "Daisy chaining" may mask faults in the system due to accumulation of faults that may compromise safety. It defines the problem and provides several solutions for overcoming it. more

 
 
4/15/2016 
Machine Guarding and Lock Out / Tag Out

This paper provides some insight as to the differences between the two methods of safely controlling hazardous energy. It provides the guidelines for when and why to use LO/TO on some tasks and machine guarding on other tasks. more

2/17/2016 
Locking Devices for Machine Safeguarding

This paper looks at the principles behind Guard Locking and Process Locking of safety interlocks. It provides several examples when to use each method, and describes the locking principles and lock release types defined by the ISO 14119 standard for guard interlock design and selection. more

 
11/2/2015
Efficiency in Machine Safety more
2/27/2015
Emergency Stop Devices: More Than An Off Switch more
9/17/2014
Principles for Design and Selection of Interlocking Devices more
5/20/2013
Machine Safety Standards more
1/22/2013
Safety Controller Selection Guidelines more
10/5/2012
Light Curtains Initiate Machine Cycles more
4/1/2012
Machine Safety Terminology more
11/22/2011
Using E-stops buttons and other electromechanical switches in a series wired circuit and Performance Levels achieved more
5/1/2011
Light Curtain Terminology more
9/1/2010
Tampering: a hot topic of machine safety more