Product Description:

The DDS02.1-A100-DS30-02 is a digital drive controller assembled by Bosch Rexroth Indramat and organized under the DDS Drive Controllers series. Within an automation cell, it regulates three-phase servo motors. It converts command words from upper-level motion hardware into precise current and voltage patterns that determine axis speed, position, and torque.

This unit communicates with motion processors through the SERCOS interface, a real-time serial bus that carries synchronized cyclic data and diagnostic telegrams along a fiber-optic ring. Current supplied to the motor windings can reach a continuous 100 A, so cabinet wiring, fusing, and drive sizing must match that amperage. Thermal energy generated by those currents is removed by external air cooling; the blower path draws ambient air from outside the enclosure, preventing recirculation of warm cabinet air. Encoder signals return through digital servo feedback, allowing the controller to close its velocity and position loops without separate analog converters. Hardware design belongs to Line 02, which standardizes PCB layout and connector arrangement across that release. The firmware and power stage combination mounted here correspond to Version 1, establishing parameter memory size and permissible update packages.

Because the airflow path never mixes with drive electronics inside the control cabinet, contamination from metal dust or oil mist is minimized and ambient temperature rises are held in check. Maintaining the SERCOS ring’s optical budget is easier when the communication interface and feedback channels share common grounding through the drive back-plane, reducing bit errors on long links. Finally, motion accuracy is preserved by the low-latency nature of the motor feedback protocol, which lets the controller inject corrective currents within each mechanical sampling period.