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Pepperl+Fuchs Podcasts

Pepperl+Fuchs’ TechTalk helps listeners gain an insight into modern automation technologies by focusing on AS-Interface (Actuator Sensor Interface) and its associated safety technology, Safety at Work. TechTalk covers topics that range from hardware selection to installation and maintenance. Control engineers familiar with AS-Interface will get the latest news on specification enhancements, hear about new products, and familiarize themselves with established and cutting-edge troubleshooting methods, tips, and tricks.  Users who are interested in applying these technologies will learn what it takes to set up an AS-Interface system, how Safety at Work improves safety systems, and why those technologies have the potential to save time and money during all phases of a project.

Jan 19, 2015

Safe, contact-expansion relay modules for AS-Interface are used to expand the number of available safety outputs in cases where modern electronic safe outputs cannot be used.  Because they have no mechanical components that are more prone to fail, this approach has numerous advantageous for AS-Interface networks:

  • --Not using relays reduces the cost of the solution
  • --The switch-off time of an electronic output is faster
  • --Eliminating mechanical components increases total system reliability
  • --External relays reduce the cost of replacing a failed component
  • --Replacing just the contact expansion module is faster