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Omron Yaskawa Inverters

Yaskawa and Omron frequency inverter drives set the standards to which other manufacturers aspire.

The largest drive manufacturer in Europe, Yaskawa have a worldwide installed base of over 2 million inverters.

Yaskawa inverters offer unrivaled reliability and usability.

For many years Yaskawa manufactured product for Omron to sell under their own name, and from 2003 to 2012 the two companies had a joint venture business selling motion control products as Omron-Yaskawa. Therefore some of the product currently operating in the field will be the same as Yaskawa product, however, Omron now have introduced their own range of inverter drive products which is separate from Yaskawa, those can be seen here as well as the Omron-Yaskawa products.

How does an inverter work?

An inverter when used in the context of motor speed control can also be known as a variable frequency drive (VFD). It essentially generates a varying frequency three phase AC voltage to effect a change in the speed of a motor. It achieves this by converting the incoming power supply into a DC voltage and then generating a three phase AC voltage from this DC supply. The development of electronics since the manufacture of the first semiconductors has seen the speed and processing power increase enormously which has made it possible to, not only digitally synthesise the required AC frequency for any given speed of the motor but to also analyse the motor current and rotor position.

Why is it called an inverter?

The term inverter only relates to the final part of the VFD's electronic architecture, the part that converts DC voltage to AC. There is no clear technical reason for the use of the term 'inverter' as it is generally believed to refer to the inversion of the early mechanical process of converting AC voltage to DC, sometimes referred to as an 'inverting converter'.

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