Closed Loop Vector Drive for Spindle Motor

[vishnu]

I was just planning to convert my manual mill to cnc, i have to do rigid tapping on parts for which a regular induction motors cannot perform. So after an extensive study,i came to know that closed loop Vector based VFD's can perform positional measurement also, as i lack idea on Vector drives i need inputs to move further. The idea of closed loop vector drive was to save cost over Servo motors & drives.

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