The ABB 3ADT218566S0146 is a DCS880-S01-4000-10L DC converter — a 2-quadrant unit rated for 990 VAC input and 4000 A output, built into the H8 frame. It runs on a 50 Hz supply and carries three analog inputs and two analog outputs for closed-loop control integration.
The 2-quadrant design handles motoring and regenerative braking in one direction of rotation — suitable for winders, unwinders, or crane hoists where the load can overhaul the motor. If bidirectional torque or four-quadrant control is needed, a 4Q variant would be the correct choice.
Integration notes
The three analog inputs handle speed reference, torque limit, and process feedback. The two analog outputs can echo speed, current, or power to a PLC or remote indicator.