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  1. PLCs, VFDs, Motors and Controls
    Dear friends. Today I made a terrible mistake. I connected a SIEMENS MICROMASTER 440 220VAC input to 440VAC. After some seconds, smoke appears and I cut the circuit braker. Then, I change power supply to 220VAC (correct) and when turn on the braker, something blew up inside the VFD. I checked...
    micromaster 440
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