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Inverters

An Intelligent Solution for Every Drive Task

Inverters

Frequency inverter drives are a key component of Mitsubishi Electric's factory automation systems. More than 30 years on and with over 14 million units sold worldwide, Mitsubishi Electric is still continually contributing innovations to variable-speed drive technology. The latest 64-bit RISC processors, advanced software models and the latest power electronics make today's variable-speed drive solutions from Mitsubishi Electric both powerful and easy to use. Mitsubishi Electric delivers innovative, open, flexible and reliable drive solutions geared to the special needs of individual markets and customers.

Mitsubishi frequency inverters satisfy all the standards and specifications of the European Union's 2006/95/EC directive on low-voltage equipment and the 2006/42/EG machinery directive. All products have a CE certificate subject to 89/336/EEC, and also UL, cUL and DNV certificates and the certification for the Russian market. All important protective functions are included as standard equipment, and all Mitsubishi frequency inverters conform to both the ISO 9001 quality standard and the ISO 14001 environment standard.

Energy saving and regenerating frequency inverters

Mitsubishi inverters are real energy savers achieving maximum drive capacity utilisation with minimum power consumption. Flux optimisation ensures that the connected motor only gets exactly the amount of magnetic flux required for optimum efficiency. This is particularly important at low speeds as motors are normally using a voltage/frequency control system. SLV Vector Control with Online Auto tuning and automatic slip compensation, V/f control with a fully-programmable characteristic and Mitsubishi Electric's advanced OEC (Optimium Excitation Control) technology all help to make these frequency inverters masters of energy conservation. They can achieve maximum power savings of up to 60% compared to conventional mains operation, thus minimising system operating costs.

The FR-A741’s regenerative braking system makes it much more efficient than conventional drive systems, giving it the potential for significant energy savings. They are particularly well suited for tasks involving frequent cyclical acceleration and deceleration and in all applications where braking resistors are normally used. The combination of the integrated AC reactor and no need for an external braking unit eliminate a large amount of additional wiring. These inverters need up to 60 % less main circuit wiring and occupy up to 40 % less space than conventional solutions, depending on the output capacity.

The FR-F740 frequency inverter drives from Mitsubishi Electric are designed for the special needs of pumps and fans. These inverters can significantly enhance the energy balance of pump and fan applications - particularly in the low-speed range and in low-load operation, where energy savings of up to 60% can be achieved. Additional savings are made possible by Mitsubishi Electric's innovative OEC (Optimum Excitation Control) technology. This system ensures that the optimum magnetic flux is always applied to the motor, thus reducing losses. The result is maximum utilisation of motor capacity at maximum efficiency.

Product range

The series covers a very broad output range from 0.1kW all the way up to 630kW. Lines include the smallest FR-D700 series for simple applications, the medium-range FR-E700 series and the high-performance FR-A700 series. The product range is complemented by the FR-F740 series that is optimised for the special requirements of pump and fan applications in the HVAC sector.

All frequency inverters feature simple operation and configuration and optimised control and data management facilities. The integrated control terminals, the one-touch digital dial and the multi-language control panel with copy function provide instantly-comprehensible information on current drive status and clear error message displays.

Networked systems are very easy to configure thanks to support for standard open network bus systems including Profibus/DP, DeviceNet, CC-Link, CANopen and LonWorks. Serial RS-422 and RS-485 interfaces and the optional USB port enable multidrop applications with up to 32 stations and connection of the latest PC and process visualisation systems.

IMS study confirms Mitsubishi Electric's outstanding drive systems performance:

When it comes to reliability drive technology from Mitsubishi Electric has an enviable reputation. The latest customer satisfaction survey conducted by IMS Research confirms that the Mitsubishi Electric drives are among the best in their class in terms of product reliability.

What can you expect from Mitsubishi Frequency Inverters?

  • Conformity to global standards, specifications and certifications
  • An open and flexible drive platform
  • A broad product range geared to the needs of the market
  • Simple operation and configuration
  • Optimised control and data management
  • Outstanding product reliability

Plus extensive advanced technology functions like:

  • SLV- Vector Control and V/f Control (fully programmable)
  • Online Autotuning and automatic slip compensation for outstanding speed stability
  • Soft PWM function for reduced motor noise
  • OEC technology for maximum power savings
  • Active current limiting (tripless operation)
  • Automatic restart after power failures
  • Flexible control units and intuitive configuration and setup

Product range

Inverters

 FR-A700FR-D720SFR-D740FR-E720SFR-E740
Output range0.75 - 630 kW0,1 - 2.2 kW0.4 - 7.5 kW0,1 - 2.2 kW0.4 - 15 kW
Power supply (50/60 Hz)3-phase
380-480V or 500V
Single-phase
200-240V
3-phase
380-480V
Single-phase
200-240V
3-phase
380-480V
Output frequency0.2-400 Hz
Control unitRemovableIntegrated
 FR-A741FR-F740FR-F746FR-A820FR-A840
Output range5.5 - 55 kW0.75 - 630 kW0.75 - 55 kW0.2 - 132 kW0.2 - 630 kW
Power supply (50/60 Hz)3-phase
380-480V
3-phase
380-500V (IP54)
3-phase
200-240V
3-phase
380-500V
Output frequency0.2-400 Hz0.5-400 Hz0.2-590 Hz
Control unitRemovable
 FR-F800
Output range0.75 - 630 kW
Power supply (50/60 Hz)3-phase 200-240V or 380-480V
Output frequency0.2-590Hz
Control unitRemovable
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