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Symbol For Reversible Vvvf Drive


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There are several symbol strategies for VFDs, usually something depicting the conversion/inversion by showing a diode and/or transistor symbol. Whatever the convention, nothing in the symbol will indicate the fact that it is reversible since that is done electronically, not electromechanically. The only reason why an electromechanical reversing starter is depicted differently is to alert the viewer as to why there are extra components in the system. In the case of a VFD, there are none.
"He's not dead, he's just pinin' for the fjords!"
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