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8 December, 2022

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Decentralised drives handle synchronous reluctance motors

23 May, 2022

The Italian gears, motors and drives manufacturer Bonfiglioli has announced a series of decentralised inverters for controlling asynchronous and synchronous reluctance motors. The DGM Modular inverters have embedded EMC filters and on onboard PLC that can be used to customise the inverter functions.

The inverters come in four sizes including single-phase versions with ratings from 0.37–1.1 kW (DGM1), and three-phase versions spanning 0.55–22kW. The inverters can also be used with reluctance motors from 0.55–30kW. The single-phase versions are available in voltage ratings from 100–230V AC, 50/60Hz or 140–320V DC, while the three-phase versions cover 200–480V AC, 50/60Hz or 280–680V DC.

The inverters can be supplied with a gearmotor or separately for wall or motor mounting. If supplied with a gearmotor, the drive is preconfigured to suit the motor and autotuned. Users can change the settings via an optional keypad, or using software which performs configuration, troubleshooting and testing functions.

The inverters have compact die-cast aluminium housings with good impact and vibration resistance (up to 5g). IP65 protection ensures dust and water spray resistance, and the inverters can be used outdoors or in aggressive environments. Passive ventilation provides cooling up to 7.5kW.

Bonfiglioli’s decentralised inverters can be supplied with matched gearmotors

The inverters can be connected to most common bus systems including Modbus, CANopen, Profibus, Profinet, EtherCat, Sercos III and Ethernet/IP. The embedded PLC can be programmed in the FBD, ST, IL, LD and SFC languages.

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