Product Description:

The DDS02.1-W025-DS56-00-FW is a servo drive controller manufactured by Bosch Rexroth Indramat within the DDS Drive Controllers series. The unit receives a DC link from a compatible supply module and issues sinusoidal phase currents that synchronize with encoder feedback, enabling high-precision positioning and speed control of industrial AC servomotors. In modular cabinets, it serves as a single-axis drive module that works with line filters, braking components, and higher-level PLCs for coordinated motion in packaging machines, material-handling gantries, and machining centers.

It communicates with the automation host over the SERCOS interface, using fiber-optic rings for real-time position commands and diagnostic data. Thermal management relies on internal cabinet air, so cabinet airflow must remove switching losses continuously during operation. The controller delivers a continuous output of 25 A, which is the maximum RMS phase current the connected motor may draw under rated conditions. The housing is classified as IP20, which provides finger protection but does not seal against liquids, so the device must be installed in an enclosed electrical cabinet. Rotor position is evaluated through digital servo feedback, allowing high-resolution current control and encoder fault monitoring without analog conversion.

The allowed ambient range is 0–45 °C, permitting full current without derating when the cabinet temperature remains within that range. For storage, the electronics tolerate -30 to 85 °C, which helps protect the unit during transport and long-term warehousing. Installation altitude is limited to 1000 m because lower air density above that height reduces cooling effectiveness. The unit is supplied with firmware ordered separately, so the required control software is selected independently from the power section to match the intended application.