Learning Center

Switching it up: IGBTs

By Yin on 15th Aug 2014

What is IGBT? An Insulated Gate Bipolar Transistor (IGBT) is a key component in what makes up a VFD (Variable Frequency Drive). If you break down a VFD, one easy way to analyze it is to think of it in three main parts: the bridge …

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SV1 - HVAC VFD Control Panel

By Yin on 12th Aug 2014

What is an SV1 The intelligent design of the MDI (Motor Drives International) enclosed drive panels, including the SV1 system, have been engineered with you and your toughest electrical applications in mind giving you the peace o …

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How to Program the Mitsubishi A700 Series VFD (Video)

By Craig Hartman on 11th Aug 2014

Video TranscriptHi, this is Craig Hartman for VFDs.com. Today we are going to learn how to program the Mitsubishi A700 Series of variable frequency drives. This is the Mitsubishi A700 drive. This is an advanced, high-perform …

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How to Program the Mitsubishi A800 Series VFD (Video)

By Craig Hartman on 8th Aug 2014

Video TranscriptHi, Craig Hartman from VFDs.com. Today we are going to learn how to program the Mitsubishi high-performance A800 Series variable frequency drive.This is the Mitsubishi A800. That’s a high-performance drive, i …

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7 Questions to Ask When Buying a VFD Control Panel

By Yin on 23rd Jul 2014

Do you know how to find a quality enclosed VFD control panel? Here are 7 questions you need to ask yourself (and your supplier) before buying a VFD control panel: 1. Do you have the right VFD for the job? When sizing …

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Shaft Grounding Rings - The Necessary Accessory for Your Motor and VFD

By Dan Hansen on 14th Jul 2014

Why do you need a shaft grounding ring (SGR)? Motors that are operated with a variable frequency drive (VFD) are more susceptible to bearing failure. In standard generated sine waves, the voltage is balanced; this means that the a …

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