... loop control systemsSimple PLC which can achieve multi-speed, quasi winding and unwinding function, wobble, etcHigh ... Frequenzumrichter,AC drives, frequency converters, frequency changers, adjustable speed drives (ASD), adjustable frequency drives (AFD), variable frequency ... drives (VFD), variable speed drives (VSD), Frequency Invert(AC Drives), Soft Starters, ...