Sensorless standstill monitor
By Mary Del
Oct. 3, 2014 – Wieland Electric has expanded its product line of machine safety devices with a sensorless standstill monitor compatible with all types of motors. The DIN-rail-mounted SVM4001K Series standstill monitor uses electromagnetic feedback, or back EMF, technology to provide machine safety engineers with a sensorless method of detecting motion in virtually all types of machinery applications, including high-speed rollers, slitters and winding equipment. The monitor is rated for 690 volts, and frequencies up to five kHz. It is compatible with single- and three-phase AC motors, DC motors and variable frequency drive and servo-driven motors. The monitor module features selectable voltage thresholds and programmable time delays, enabling machine safety engineers to customize the device to their particular application.