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.



Calculating Safety Distances
(6/21/2017)

Applying safeguards to equipment and machines may lead to a false sense of safety if not applied correctly. This paper explores the often overlooked practice of determining the minimum safe distance or height at which a hard guard or protective device should be installed. more

 
FSMA: Equipment and Control Designs
(5/18/2017)

The new Food Safety Modernization Act legislation demands stricter proactive measures to prevent hazards that could affect food within that facility. One of those measures deals with the hygienic designs of the equipment and controls. more

 
 
3/15/2017 
The Future of the Industrial Robot

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

11/1/2016 
Fault Masking

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 more
2/17/2016
Locking Devices for Machine Safeguarding 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