DAC 2021_12

THEWELSH DRIVES-MAKER Invertek has launched a series of high-powered Size 8 variable-speed drives in two mounting versions: IP55/Nema 12 enclosures for direct mounting; and IP20 for control cabinet mounting. The drives, members of the company’s Optidrive P2 and Optidrive Eco families, can control motors rated up to 480A with power ratings up to 250kW. They replace the existing Size 8 models which were available only with IP20 protection for control cabinet mounting. The new range also adds DNV marine certification, as well as built-in EMC filters to meet Category C3, with high-performance Category C2 filters available as a factory-fit option. They come with high-definition TFT displays as standard. The IP20 and IP55 versions can both operate in ambient temperatures up to 50˚C, and comply with UL, cUL, EAC and RCM requirements. “The P2 and Eco drives are already used in a wide range of global industries,”says Invertek’s technical manager, Kes Beech.“We’ve launched the new Size 8 to meet the growing demand for more powerful and precise electric motor control. The addition of the IP55 enclosure to the range provides a direct mounted option, opening up a host of new opportunities. “Reliability, ease of use, and energy efficiency are all synonymous with our Optidrive range,”he adds.“This is replicated in the new Size 8.” The Optidrive P2 is aimed at high- performance applications such as mixers, extruders, conveyors, cranes and hoists. It can provide up to 200% torque from zero speed, ensuring reliable starting and accurate speed control under all load conditions. The Optidrive Eco is used widely around the world to control fans, pumps and compressors, in HVAC and water industry applications. The drives include built-in chokes, keypads and high-definition, multi-language TFT displays. They can be used with Invertek’s OptiTools Studio PC software for set-up, commissioning and control, as well as its OptiTools Mobile apps for smartphones and tablets. Invertek Drives is owned by Sumitomo Heavy Industries which acquired it in November 2019. www.invertekdrives.com TECHNOLOGY n An IP20 version of Invertek’s new high-power drives, suitable for mounting in control cabinets IP20 and IP55 VSDs can control motors rated at up to 250kW