Craig Hartman

  1. Industry Spotlight: Using VFDs for Swimming Pool Filtration Systems

    Industry Spotlight: Using VFDs for Swimming Pool Filtration Systems

    Variable Frequency Drives (VFDs) provide immense savings and energy use reduction in swimming pool and filtration pump applications. Read below to learn more about the effect VFDs have on the way many pool and filtration...
  2. How to program the Mitsubishi D700 series VFD (Video)

    Learn the basic programming of the Mitsubishi D700 VFD with our engineer Craig Hartman. The D series VFD is common for phase conversion and simple speed control.
  3. How to Program the Mitsubishi A700 Series VFD (Video)

    How to Program the Mitsubishi A700 Series VFD (Video)

    Learn the basic programming of the Mitsubishi A700 VFD with our engineer Craig Hartman. The A series VFD is the top of the line in Mitsubishi VFD family.
  4. How to Program the Mitsubishi A800 Series VFD (Video)

    How to Program the Mitsubishi A800 Series VFD (Video)

    Learn the basic programming of the new Mitsubishi A800 VFD with our engineer Craig Hartman. The A800 series is the latest and most robust VFD from Mitsubishi Electric.
  5. What is a Variable Frequency Drive?

    What is a Variable Frequency Drive?

    Looking for a VFD for the first time? Learn the basics of what a VFD is and the differences between VFD types. Find out what you should look for in a quality VFD.
  6. Variable Frequency Drive Harmonic Mitigation

    Variable Frequency Drive Harmonic Mitigation

    Learn the effects of harmonics, IEEE recommended practices, measurement considerations, the cost of harmonic mitigation, recommendations, and more.
  7. How to Perform Basic VFD Programming (Video)

    How to Perform Basic VFD Programming (Video)

    Learn to program basic parameters for Mitsubishi A700, E700, F700, and D700 Series drive using the full keypad FR-PU07-01 parameter unit.
  8. High Voltage Spike (dV/dt) and Motor Protection Methods

    High Voltage Spike (dV/dt) and Motor Protection Methods

    Large distances between a motor and a VFD can cause high voltage spikes. High voltage spikes can damage motors and lead to early failure.
  9. Benefits of VFDs, Inverters, Drives

    Benefits of VFDs, Inverters, Drives

    Learn how to achieve energy savings, tighter process control, and reductions in equipment damage and maintenance by installing variable frequency drives.
  10. Bearing Currents

    Motor bearings have a higher failure rate when the motor is run with a VFD. AEGIS shaft grounding rings mitigate shaft voltage spikes and improve motor bearing lifespan.

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