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Next-generation drives ‘deliver 12% extra energy savings’

23 September, 2015

A motor preheat function helps to achieve smooth start-ups, to overcome condensation, and to prevent damage caused by freezing outdoor conditions. Vibration caused by mechanical resonances can be detected and reduced, protecting equipment from excessive wear, mechanical damage and premature failure.

The drives offer plug-and-play auto-tuning for high-efficiency permanent magnet motors as well as for induction motors. For ease of set-up, a one-touch “digital dial” allows direct access to all of the important parameters.

An optional, removable six-line LCD panel includes an easy start-up wizard function. The display can also show customised text messages. 

The drive can be used to control external cooling fans in control panels, based on the control panel temperature, thus avoiding the need for a thermometer in the panel.

Mitsubishi's new-generation variable-speed drives initially span ratings from 0.75–630kW

Critical internal components such as power capacitors and cooling fans are monitored to allow predictive maintenance. To enhance the reliability of the F800 – which comes with a three-year warranty – fault-finding is aided by built-in data-logging and tracing functions. As well as long-term data-logging, the VSD saves status information from before and after an alarm, and can store it, ready for subsequent analysis. This data can be exported using a USB memory stick, which can also be used to store and transfer parameters and PLC code.

A two-channel STO emergency stop provides a safe shutdown to avoid possible damage to the drive.

The drive supports RS-485, Modbus and BacNet as standard, with support for other protocols – including CC-Link, Profibus, Ethernet, EtherCat, SSCNET III, DeviceNet and Lonworks – available as options. Measured energy savings can be displayed via a network.

The F800 inverters are similar in price and size to the previous F700 generation. Existing installations can be upgraded in a simple unplug and swap-out process. The drives are designed to operate for at least ten years.

As well as the general-purpose FR800 drives, Mitsubishi will be offering an application-specific models, known as 800+, for applications such as reel-to-reel winding systems, tunnels and HVAC systems.

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