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Frequency inverter acts as a sensor and generates IIoT data
Published:  13 June, 2022

At the recent Hannover Messe, Lenze launched a decentralised frequency inverter which performs several tasks simultaneously, including acting as an sensor that collects data and forwards it on to IIoT platforms and edge systems. The i-series motec inverter allows direct access to drive data via several communication interfaces, including an IO-Link master, providing machine operators with high-quality information. The sensor data can be analysed in real time, paving the way for condition monitoring and predictive maintenance functions.

“This gives customers a comprehensive overview of the condition of their machine, enables them to plan service and maintenance actions in advance, and thus saves time and money,” says Peter Blatter, Lenze’s head of inverter product management.

The decentralised frequency inverter allows data to be viewed at any time. A digital nameplate supports asset management and can be read via a smartphone or directly from the inverter. It gives machine operators quick and easy access to data such as product codes, CAD files and spare parts information.

With integrated positioning functions, the inverter offers dynamic motion control that previously only servodrives could provide. This opens up new applications for the inverter, creating further potential for cost savings.

A built-in regenerative function avoids energy being lost in braking resistors. The motor feeds the energy back into the grid without needing any additional hardware.

The IP66-protected inverters can control synchronous motors without needing sensors. They can be mounted on a wall or on a motor.

Compact drive packages consisting of a gearbox, motor and inverter are available, spanning ratings from 0.37–5.5 kW – with an extension up to 30kW planned. Combining the three components ensures high efficiency with a small CO2 footprint. The savings are particularly evident in intralogistics applications, where conveyor lines can be several kilometres long and involve thousands of drives.

Lenze’s decentralised frequency inverters can act as sensors

The drives have built-in energy saving functions and support PROFIenergy. Use of Lenze's Easy System Designer software avoids oversizing and is claimed to result in energy savings of up to 30% compared to previous designs.

Pluggable M12 push-pull cable connetors simplify installation. “There is no way to connect an inverter faster and more reliably,” Blatter asserts. Voltage-free parameteriation, simple menu navigation, and practical factory settings also help to make commissioning easier.

Integrated safety functions include Safety over Ethernet, protecting machines and users and boosting productivity. “Our customers have the option of solving decentralised safety applications without sensors, quickly and in a space-saving manner,” says Blatter.

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