Broad responsibilities of designing and building a safe machine from the supplier perspective were detailed in a November Control Engineering article by Steve Wright. Issues beyond that include additional shared responsibilities.
Moving machine guarding solutions to solid-state-based components from hard-wired components has been a persistent U.S. discussion since 2002. Are solid-state components enough to provide effective machine safety and personnel safety?
When talking about qualitative versus quantitative as they relate to machine safety standards and compliance requirements, are we talking about the risk assessment process? Or do we consider the process to engineer and mitigate hazards related to the Safety Related Parts of Control System (SRP/CS)?
When NFPA 79 changed by removing requirements for hard wiring machine safety devices in 2002, many automation suppliers introduced new safety rated devices for machine guarding. Domestic standards also have updated requirements to provide direction for use of safety rated devices. Do the new devices represent new hazards, such as lighted emergency stop...