Archive of Process Control - MAVERICK Rethinking Automation

4 Rules For Designing Safety into Control Systems

Posted by Brad Ems on November 13, 2012 @ 9:47 am

When you see a talk about safety, your first expectation is probably something on proper PPE, procedures or other aspects of safety that are typical fodder for safety “toolbox talks.” What I’d like to discuss in this post, at least in a very general way, is how to design safety into your process control system. First off, a disclaimer: I am an engineer, although not (yet) a PE and I have no certification in any safety-related field. I do have roughly 30 years of experience in working around heavy equipment, much of it quite dangerous to life, limb, and property if the risks are not properly ...

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Intersections of Manufacturing and Process Control

Posted by Sergei Kuznetsov on June 12, 2012 @ 9:06 am

Have you ever thought about how many average families have been changed by having GPS devices in our cars? Just think back to the (not so) good ol’ pre-GPS days when you pretended you knew where you were going, only to find out you didn’t, and you never heard the end of it. When those wonderful gadgets came along, they put a stop to all the arguments about directions. Yet the change snuck up on us so quietly, it went mostly unnoticed. I see the same thing happening in our industry with variable speed drives (VSDs), including variable frequency drives (VFDs) and inverters. Yes, we all know you can reduce energy consumption while improving efficiency and process control by using VSDs to drive pumps and blowers instead of using flow restriction devices. But that’s not what I want to talk about. What I want to focus on is how much the cost of modern VSDs has dropped in recent years....

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