Product Description:

The DDS03.1-W050-DS29-01 is a digital AC servo drive controller produced by Bosch Rexroth Indramat for automation tasks that require regulated three-phase motor power. It is part of the DDS Drive Controllers series and provides axis control when paired with compatible Indramat power supplies and servo motors. Within a motion system, the unit issues commanded current to the connected motor, processes feedback signals, and communicates with higher-level PLCs to coordinate position, speed, and torque control.

Communication with the supervisory control layer takes place through the SERCOS interface, allowing deterministic exchanges of setpoints and status data over a fiber-optic ring. The drive can deliver up to 50 A of continuous output current, so conductors and fuses must be sized for this value during sustained motion. Its housing carries an IP20 protection category, meaning it protects against accidental finger contact but does not provide liquid ingress protection, so the unit must remain inside a cabinet. Heat is removed by internal air cooling, and cabinet airflow must move ambient air across the heat sink to keep semiconductor junctions below rated limits. Reliable operation is permitted at an ambient temperature of 0 – 45 °C, so extra ventilation or derating is required if the enclosure exceeds this range.

The controller may be mounted at elevations up to 1000 m without power derating because lower air density above this height reduces cooling effectiveness. When the line is inactive, it tolerates storage temperatures between -30 – 85 °C, allowing spare units to be kept in unconditioned storage areas. Motion feedback from the attached motor is interpreted through digital servo feedback, which transmits position and velocity data for precise closed-loop regulation. The unit is Version 1 with Function ID 01, which aligns it with the standard DDS03.1 parameter structure.