What does the schematic for the input hookup to the VFD show? Only connections to two inputs? IIRC, some VFD's require one of the single phase hot wires to be split on two inputs to the VFD, which is the same as tying L2 and L3 together. But the schematic should show this.
What is providing the 0-10v input voltage command signal after this changeover? Is that working properly?
First you get good, then you get fast. Then grouchiness sets in.
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