Frequency converters – control and regulation.

Mitsubishi Electric frequency converters — new series.

The use of frequency converters in technological systems as the main control element places demands on them as diverse as the processes themselves. A wide range of Mitsubishi Electric converters makes it easier to choose the most convenient device that meets specific requirements.

It is quite natural to add a more “advanced” FR-A 700 series to the line of universal converters of the FR-A 500 series, with significantly expanded functionality for use in a wide variety of systems.

The FR-E 500 series models have been replaced by the FR-E 700 series, which differ in both power (FR-E 740, FR-E 720S, up to 15 and up to 2.2 kW, respectively), and in connection options to single-phase and three-phase networks.

For low and medium power drives, a special series of frequency converters FR-D 700 has been developed, featuring a simple interface and compactness, which is also important.

Unification of frequency converters.

A separate series of frequency converters FR-AF 700 stands out, having a unified power section, and a replaceable control board (FR-CA70-EC(T) or FR-CF70-EC(T)) allows using the frequency converter to control pumps or ventilation systems (FR-F700 series) or as a universal converter FR-A 700.

Frequency converters of the FR-S 500 series are general-purpose inverters, and, combining functionality, compactness and many “intelligent” control options, are ideal for controlling most technological processes — belt conveyors, screw conveyors, pumps and fans. FR-S 520 SE and FR-S 540 E are simple V/F control of electric drives for single- and three-phase networks.