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A popular question we are often asked is which VFD we would recommend using with a Bridgeport Mill.  Generally our go to answer is the SMV vector by AC TECH LENZE.

Why, you may ask? Well, it really comes down to five key points:

  • This model has very good “Sensorless Vector” control function – allowing for tight control with very low frequency applied to the motor; providing maximum torque and performance when working on difficult materials.
  • AC Tech Lenze has one of the easiest operating manuals to understand for a novice VFD user.
  • The SMVector is Just about the easiest VFD to commission for a new end user.
  • The amount of YOUTUBE videos for the do-it-yourself type customer and accessible documents offered by the manufacturer for alternate wiring schematics and connection diagrams elevates AC TECH LENZE above some others, depending upon the needs of the audience.
  • The variety of options that allow specifying the VFD to your exact dimensions is a major plus. These variations include supply side voltage options (120-240V/1 PH input, 208-240V1PH/3PH input 208-240V/3PH, 400-480V, and 600V), small to midsize HP ranges, variable cabinet enclosure ratings (NEMA1, NEMA 4X) and Integrated Fwd. /Rev tactile push button.

Want to learn more about VFDs?

You may be wondering if there are any weaknesses in the SMV line?  Well, not that many but there is one little hiccup. 

The output current is, on average, slightly on the lower side of some motors.  It’s perfectly fine for a large part of the market, but if someone has a much older motor, you run the risk of not be sized correctly because of reviewing HP versus review Amps. 

It’s always a best practice to size the VFD by amps and not by HP to insure accurate sizing.  If one practices this methodology then maximum application safety factory sizing will be ensured.

Still have questions? Feel free to email our tech support or sales team or give us a call and we’d be happy to help you find your perfect VFD!

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