Mitsubishi protects high performing inverter drives to IP55
Mitsubishi’s A800 high performing variable speed drives offer outstanding speed and torque control in demanding applications up to 160kW, and where the control architecture is decentralised. Now suitable for use in harsher environments than conventionally packaged inverter drives, the A846 splash and dustproof drives are protected to IP55.
The A846 is suitable for operation with both standard asynchronous machines and IPM/SMP (interior permanent magnet/surface mounted permanent magnet) motor technology. A new auto tuning method also allows the increasingly popular permanent magnet motors to be set-up quickly and easily.
Maximum speed and torque up to 590 Hz can be achieved using the sensorless vector control facility. An overload capacity of 200% during the start-up phase will ensure reliable starting cycles, even under demanding operating conditions. Minimum terminal cycle times of less than three milliseconds guarantee the fastest possible response, while speed rise times of less than 80 milliseconds help to ensure maximum performance and enhanced productivity.
Two overload scenarios optimise system planning, while functional safety up to PLd/SIL3 ensures operation in situations from simple emergency stops to complex operational requirements such as required for press actuation. Three slots are provided to allow for expansion cards such as extended input / outputs or network connectivity.
Other high performing features include data logging functionality and a built in PLC, allowing the drive to form the heart of a full, standalone automation system. A simple and intuitive graphical user interface allows direct access to all parameters, while an LCD screen facilitates at a glance monitoring and setting. They can also be programmed using Mitsubishi Electric’s iQ Works programming environment.
An EMC filter, built in as standard, ensures full compliance with the EMC Directive (EN 61800-3, 1st environment, category C2). A DC reactor – also integral to all units – ensures compliance with IEC 61000-3-12, reducing and limiting harmonic currents so that separate mitigation equipment is not required.
Broad range of networking options
An important feature of the new drives is their ability to be controlled over a network. The FR-A846 inverters offers many network options including CC-Link, SSCNET, Profibus-DP, Profinet, Ethernet/IP, EtherCAT, LONworks and Modbus RTU, enabling the drives to be used all over the world.
Integrated maintenance counters protect the drive by forewarning of potential component fatigue and help reduce the overall maintenance requirements and associated costs. To further simplify maintenance, the new drives are available with a built in mains switch to power down the drive and lock it securely. At the same time, they can be connected to an external power supply so that the parameters can still be set and network communications maintained.
Drives and Controls Show April 2016
If you’re visiting the Drives & Controls show at the NEC this April, you should put some time aside and come and see us on Stand D544. You’ll have the opportunity to explore a world of automation applications, from drives, robotics, motion and safety systems right through to intelligent control, energy distribution and integration solutions. And, with quality and customer service at the core of everything we do, you’ll always be the focus of our attention.
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