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Variable frequency drive, a three-phase AC output motor controller. Questions about vacuum fluorescent displays should not receive this tag.
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Unknown motor with continuity across all windings. Help identify star vs. delta
I'm converting an old milling machine (Optimum F40E) machine to be driven with a VFD, and I have it working. … The head is a geared head, and with correct settings (torque compensation) in the VFD I can overcome the startup torque in the gear-train when the machine is shifted into the "high speed" gear. …