SEW-Eurodrive has released the Movitrac LT frequency inverter, suitable for low-power variable-speed applications such as fans, pumps, machine tools and conveyors.
The inverters are available in two compact frame sizes. They are comprised of single-phase 230V units up to 2.2kW and three-phase 400V units up to 4kW. The combination of keyhole mounting and intuitive contactor-style wiring connections for motor output and power supply makes both mechanical and electrical installation simple. The use of 14 standard configuration parameters streamlines setup time. In many basic applications the factory default settings can be used.
A mobile-phone style keypad and LED display allow local control and programming of the inverter. An integrated help card has parameter descriptions and an outline of the wiring terminal layout, providing a convenient reference. Programmable I/O offer maximum flexibility. Options include silent motor running with 32kHz quiet switching, cold plate heat sink technology, and a radio frequency interference (RFI) filter that results in C-tick compliance. The unit is rated to 50ºC ambient temperature and will withstand 150% overload for 60 seconds.