Can we have an energized magnet on when the robot is disabled?
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If the magnet causes something to move when energized, it may be considered a solenoid. Probably not, but that’s a Q&A question that will probably draw a non-answer, referring to the LRI.
In any case, if it is switched using a controller legal for a motor, it will be de-energized when the robot is disabled.
What I have seen pass inspection is an electromagnet that is normally magnetized, and the activation of the coil causes it to become de-magnetized (I believe it just creates a field of the opposite direction). These magnets are often used in electronic security systems, since they will hold the door closed when the power goes out.
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