Automation Q&A
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What is the packaging automation industry’s definition of fail-safe? Should every step be fail-safe?Asked September 24th, 2009I do not know of an industry definition. It is really more about the application of Good Engineering Practices. Fail-Safe systems are one method of mitigating risks as determined from my earlier post.
Here are some examples:a. Duplication of sensing.
b. Redundant sensing, different from above in that you use different methods of sensing.
c. Sensor checking to verify on - off each cycle.
d. Design the control system for fail to off (reject all).The Risk Assessment described in my earlier post will determine which steps to follow.



