A proper maintenance reliability system addresses seven basic concerns about automation system maintenance: 1) it categorizes the types of failures; 2) identifies risks of future failures; 3) tracks occurrence of failures; 4) proposes and manages the methods for detecting failures; 5) identifies and initiates the correct maintenance option for the type of failure that is determined; 6) assesses feasibility of the selected option, as well as countermeasures; and 7) evaluates the results of the maintenance approach that is chosen.
Automation keeps expanding, and there is no end in sight. This should result in better products, faster deliveries, and lesser cost. However the fast pace of change requires a new maintenance approach. In many cases, new technology has not produced the promised results, because of the obsolete maintenance mindset. Remember the old days? we had selector switches, relays, and linkages. Today, HMI, PLCs, and electronic probes have replaced these components. In reality, these advancements have ...
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