FIELD: electric drives in which executing member performs oscillating, vibrating and reciprocal movements. SUBSTANCE: oscillator in frequency converter is connected to frequency divider which provides both varied and constant division factor. This results in possibility to feed stator windings with alternating currents of different frequencies one of which is generated by multiplication of another one by constant factor. Stability of oscillations of executing member is determined by bit- length of counters and reaches 0.01%. EFFECT: increased precision of control. 2 dwg
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