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Yaskawa V1000 Inverter

The Yaskawa V1000 variable speed AC inverter drive is a general purpose inverter with open loop vector control utilising cutting-edge motor control technology to give great performance and flexibility and making it suitable for a wide variety of applications. The advanced design of the V1000 series variable speed drive (VSD) enables it to give outstanding motor speed control. The drive is available for single or three phase power supply with power ratings of 0.18kW to 18.5kW.

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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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