Product Description:

The DDS02.1-W025-DS01-02-FW is a drive controller built by Bosch Rexroth Indramat and supplied in the DDS Drive Controllers series. Acting as the link between a motion-control host and an electric servo motor, it regulates current and voltage so automated axes follow commanded speed and position profiles without drift. It is used in assembly lines, packaging machines, and handling systems, where stable closed-loop control is needed for repeatable acceleration, deceleration, and positioning. In cabinet-based automation systems, it serves as the regulating stage between control electronics and the motor power connection. This arrangement lets the drive translate control commands into regulated motor behavior during normal machine cycles.

For command exchange with the higher-level PLC, the controller uses a SERCOS interface that carries real-time setpoints and status over a fiber-optic ring. The optical communication path supports deterministic data exchange that is commonly used in synchronized multi-axis systems. Thermal management uses internal cabinet air cooling, so no separate fan tray is required when cabinet airflow is maintained through the enclosure. The power stage delivers a continuous phase current of 25 A, which is the rated current available under continuous load. Continuous current capacity is important for axes that must hold torque through long production runs without thermal derating. Within the modular platform, the unit carries Function ID 01 and belongs to Line 02.

Feedback from the motor is returned as digital servo feedback, allowing the controller to close the velocity and position loop with high resolution while limiting noise sensitivity. The unit is Version 1 and is classified as a Digital AC Servo Drive Controller. It uses pulse-width modulation to supply three-phase output in synchrony with motor feedback for closed-loop servo operation. Because encoder data is processed directly by the controller, the drive can correct motion errors during changing load conditions. This supports accurate speed regulation and position response when paired with a suitable servo motor and power supply.