Product Description:

The DDS02.1-W025-DS12-00 servo drive module is produced by Bosch Rexroth Indramat within the DDS Drive Controllers series. Designed for mounting in a multi-axis automation rack, the unit supplies regulated three-phase power to matched servo motors and maintains closed-loop speed and torque. By converting command signals from higher-level motion controllers into controlled output current, the device forms the interface between the plant PLC and individual axes, allowing precise positioning, coordinated interpolation, and energy-efficient operation of production machinery. It operates on the shared DC bus supplied by a compatible power supply section, enabling regenerative energy exchange between axes. This arrangement allows several axes to use the same cabinet power structure while remaining individually regulated by the drive.

Communication with the motion controller occurs through the SERCOS interface, a fiber-optic fieldbus that carries real-time setpoints and diagnostic data while maintaining deterministic cycle timing. The power section supplies a continuous output of 25 A, so motors that draw that current at rated load can be driven without derating. Thermal energy is removed by internal air cooling, and cabinet air passes over the heat sink before exiting through the top, eliminating the need for external blowers. Rotor position and velocity information return to the drive via digital servo feedback, enabling high-resolution current loops and quick disturbance rejection. This feedback path supports stable motion control during rapid speed changes and load variations, helping the drive correct deviations quickly.

Within the DDS family, the controller belongs to Line 02 and carries Version 1. It uses a common backplane bus for DC power distribution, which simplifies multi-axis cabinet layouts and keeps module interconnection straightforward. Classified as a digital AC servo drive controller, it executes current, velocity, and position loops digitally to reduce drift during operation. This control method helps maintain repeatable axis behavior in synchronized production systems.