|The 3100 series of drives offer variable-speed control of industrial DC motors. These robust units provide four-quadrant control of motoring and regenerative power. Torque, velocity, and position control modes are available in a variety of application-specific software packages. This series of drives is ideally suited for control of large DC motors in coordinated multiaxis process lines. The 3100 operates from 230-240 or 380-480 V AC three-phase supplies for power requirements up to 600 hp (450 kW).