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Yaskawa J1000 Inverter

The Yaskawa J1000 is an ultra compact variable speed AC inverter drive which meets all basic automation requirements. It is a general purpose inverter with V/f control utilising cutting-edge motor control technology to give great performance and flexibility.

Features include stall prevention functions for stable operation during changes of load or power supply and 'over excitation' braking for quick deceleration without an external braking resistor.

Follow this link for more information regarding the Yaskawa J1000 inverter drives.

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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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