Power-line control of a hazardous-environment-located machine from a safe environment
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United States of America Patent
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Jun 20, 2023
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N/A
app pub date -
Oct 22, 2020
filing date -
Oct 23, 2019
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Abstract
Apparatus and associated methods related to providing safe electrical control and/or communication between a remote controller located in a safe location and interface system for a machine located in a hazardous location. The control and/or communication is provided via industrial-voltage power lines that traverse a barrier separating the safe location from the hazardous location. Control and/or communication is provided by reactively coupling to industrial power lines, which traverse the barrier, so as to superimpose a control and/or communication signal upon AC operating power provided to the machine. Each of the interface system located at the hazardous location and the remote control module located at a safe location provides such reactive coupling to the industrial-voltage power lines so as to communicate therebetween.
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