Error (deviation)

Error (deviation)

In any control loop, the difference between the set-point signal and the feedback signal. An error is necessary before a correction can be made in the controlled system. In a positioning loop, the difference between the instantaneous position command signal generated by the summation of the feedrate, and the actual position signal generated by the summation of the feedback (e.i., following error).

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Part of Speech: noun
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Industry/Domain: Automation
Category: Industrial automation
Company: Rockwell Automation
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