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  • Users: Sheperd
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  1. Sheperd

    VFD Not Ramping to Full Set Speed

    I have a Power Flex 70 VFD which is controlling the speed of a crusher motor. We increase the speed or reduce it depending on the production demand. This speed is manually set in HZ between 30 to 42HZ. After the mechanical feeder was replaced, we started experiencing problems of under speeds and...

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