LVD Sercos III servo drive for small brushless, stepper or brushed dc motors in low-voltage (15-48 Vdc) bus servo motion applications provides fast, multi-axis control with full support of Sercos III. Pulse-width modulation (PWM) frequency to 100 kHz minimizes current ripple and acoustic noise. Separate logic and bus power supplies provide safe motor power-off, while maintaining the drive state and a fast restart.