Robert Bonczar

Intro to setting up, tuning a PM motor with a VFD

A permanent magnet (PM) motor requires a variable frequency drive (VFD) to operate effectively. See motor comparison table, induction motor vs. PM torque curve, and VFD programming and tuning advice.

Selecting a scope for a variable frequency drive

Select the right oscilloscope to fit a variable frequency drive (VFD) application. Consider scope types, probes, and options. See eight factors to consider when choosing an oscilloscope.