April 2021

n TECHNOLOGY NORD DRIVESYSTEMS HAS announced a family of high-efficiency motors, inverters and gear-motors designed to be used individually or in combination to achieve high levels of efficiency, especially in demanding applications such as hygienic installations. The family includes an IE5+ gear-motor claimed to have the highest efficiency in its power class. The portfolio includes: n an Ethernet-compatible, plug-and-play decentralised inverter in ratings up to 1kW, designed to be mounted directly on motors; n a size 90 IE5+ efficiency permanent magnet synchronous motor in ventilated or smooth versions in power ratings from 1.1–4kW, and continuous torque ratings from 6.8–18.2Nm; and n and the IE5+ motor integrated with a single-stage helical gearbox to produce a compact, high-power-density, low-noise gear-motor aimed at applications where hygienic washdowns are required. The Nordac On decentralised inverter is aimed, in particular, at horizontal conveyor applications. There are plans for two versions, each in three sizes: the Nordac On is intended for use with asynchronous motors; while the Nordac On+ is designed for use with synchronous motors and complements the new IE5+ motors. Both have Ethernet interfaces and can be used on ProfiNet, EtherNet/IP or EtherCat networks. All connections are pluggable and ensure quick, easy and error-minimising commissioning and maintenance. There is a diagnostic interface and four digital inputs. The Nordac On+ has an additional protocol- based encoder interface. If not mounted on a motor, the inverters can be wall-mounted. Built-in PLCs can process data from sensors and actuators, initiate control sequences, and transmit drive and application data to a control centre, networked components or cloud storage. This allows continuous condition monitoring and can form the basis for predictive maintenance applications. The new inverters are expected to be available in the fourth quarter of 2021, initially in two sizes. Options will include the nsd tupH protective surface treatment, functional safety (STO), and internal braking resistors for dynamic start/stop processes. The new size 90 IE5+ motors follow last year’s launch of size 71 models. They have much lower losses than IE4 motors, a wide torque range, and high efficiencies at partial loads. They can be attached directly as well as offering Nema or IEC attachment options. Constant torque capabilities reduce the number of variants needed to cover a wide speed range, cutting costs and resulting in rapid paybacks, according to Nord. The IE5+ synchronous motors can be combined with the company’s modular gearbox and drive electronics components to provide matched systems from a single source. Options include built-in rotary Hygienic IE5+ gear-motor ‘has highest efficiency available’ Nord’s high-efficiency family includes inverters for decentralised use and gear-motors claimed to have the highest efficiency in their class eAr COO ouy about L l our enc of y nal er the int es? osur e urat emper t OSURES WER D ENCL PO TRIBUTION IS OL TE CONTR A CLIM