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The models of the FR-E700 series are the successors to Mitsubishi Electric’s successful and extremely versatile line of compact frequency inverters. With improved speed and torque control features, simple operation and a comprehensive package of standard equipment including numerous technology functions, a brake transistor in all models from 0.4kW output and up, and flexible expansion options. These inverters are ideal for all applications from 0.4kW - 15kW.

The enhanced functionality of this latest generation of drive systems opens up new fields of application that were previously closed to compact frequency inverters, particularly in mechanical and plant engineering. Switching to the advanced new technology couldn’t be easier: The control systems, the removable terminal block for the control circuit connections and the installation dimensions are all fully compatible. The key component of the inverters’ control software is Mitsubishi Electric’s Advanced Magnetic Flux Vector Control system, which enables precise operation without tachometer feedback. Until now, this system has only been available in higher-output inverters. Two other operating modes, flux vector control and V/f control, are also available for less demanding drive applications. Removable terminal blocks and expansion modules enable individual configuration of the inverters and integration in networks. Each inverter has an expansion slot for I/O and communications expansion cards online. Available expansions include an I/O card with two RS-485 interfaces, a pulse train output and a high-resolution analog signal card. The “Secure Stop” feature prevents unexpected motor starts. Interfaces to common industrial bus systems are also available as option cards. Standard equipment includes an RS-485 port with the Modbus RTU protocol and a USB port on the front panel of the inverter. The models in this, series, which is the successor to the earlier FR-E500 series, are available with output ratings from 0.4 – 15kW (FR-E740) and 0.4 – 2.2kW (FR-E720S). They are also fitted with wide-range power inputs for 3-phase or single-phase power supplies.

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