Rockwell Automation Publication 442G-UM002A-EN-P - December 2016
21
Safety Concept
Chapter 2
• EN 60204-1, Safety of machinery. Electrical equipment of machines.
General requirements.
Additional guidance on guards, guard locking and guard interlocking is found
in:
• EN/ISO 12100 Safety of machinery—General principles for design—
Risk assessment and risk reduction
• EN/ISO 13855 Safety of machinery—Positioning of safeguards
concerning the approach speeds of parts of the human body
• EN/ISO 13857 Safety of machinery—Safety distances to prevent
hazard zones from being reached by upper and lower limbs
• EN/ISO 14120 General requirements for the design and construction
of guards
Safety Requirements for
Integrated Safety
Applications
Safety application requirements include evaluating the probability of failure
rates (PFD and PFH), system reaction time settings, and functional
verification tests.
For safety system requirements, including information on the safety network
number (SNN), functional verification test intervals, system reaction time, and
PFD/PFH calculations, refer to the GuardLogix™ safety reference manual for
your controller. You must read, understand, and fulfill the requirements that
are detailed in the safety reference manual before operating a safety system that
uses this module.
