... abnomal,encoder abnomal,fuse broken or overheat,position overproof etal.Operation6 bit LED ... system, Frekvensomformer, AC-Umrichter, frequentieregelaars, Variatori-AC, Variatore frequenza, variadores-AC, variador frecuencia, Variateurs AC, Variateur fréquence ... freqüência,inversor freqüência, frekvensomriktare, Frequenzumrichter,AC drives, frequency converters, frequency changers, adjustable speed ...