|
|
PRESSING ON WITH SAFETY NETWORKS.(Safty)
- Article from:
-
Fabricating & Metalworking
- Article date:
-
May 1, 2008
|
Copyright informationCOPYRIGHT 2008 Cygnus Business Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
PRESSING ON WITH SAFETY NETWORKS
By Helge Hornis, PhD, Pepperl+Fuchs, Inc.
Similar discretely wired safety relays can finally be replaced by safety rated networks. Why did we abandon relay-based control but hold on so long to relay-based safety?
All metalforming process applications have one thing in common: cutting, milling, shearing, and bending are processes where tremendous forces and huge pressures are always present, resulting in potentially dangerous situations for operators. Consequently, a solid functional safety concept is an absolute must.
At the same time, the vibrations and shocks that are constantly present are challenging designers to engineer ...