munzir
Full Member level 6
Is it mandatory in printing packaging films machine that the speed signal / frequency reference command / input frequency reference (i.e. DC voltages) of the in-feed drive (vfd) equals to out-feed drive (vfd) & also for the unwind drive (vfd) the speed signal / frequency reference command / input frequency reference (DC voltages) keeps on increasing as the diameter of the film (web) keeps on decreasing & for the Rewind drive (vfd) the speed signal / frequency reference command / input frequency reference (DC voltages) keeps on decreasing as the diameter of the film (web) keeps on increasing ?