It sound like single phasing, try setting up a resistive load between the phases out. In a pinch you could put 3 sets of 110v Lamps paired up in series. and recheck the voltage across each pair.
Your Static convertor output may not be referenced to ground, if not those readings are meaningless.
Most VFD are not BTW.
Although you should always ground the motor.
Al.
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CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Last edited by Al_The_Man; 12-17-2006 at 07:31 PM.
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