Product Description:

The DDS02.1-W050-RS18-02-FW is a drive controller produced by Bosch Rexroth Indramat within the DDS Drive Controllers series. It is a digital AC servo drive controller that regulates the current and velocity loops of matched motors in automated machinery. By converting commands from upstream motion systems into phase-aligned output, the unit forms the power stage between the control network and the mechanical axis. Its compact format is intended for mounting inside control cabinets where space is limited. This arrangement supports accurate motor control in packaging, handling, and other coordinated machine applications.

Communication with the supervisory motion processor takes place through the SERCOS interface, a fiber-optic link that carries real-time position data and diagnostic messages without galvanic connections. Heat is removed by internal air cooling, so the module relies on cabinet airflow rather than an external heat sink. A continuous output of 50 A supports medium-power servo motors during sustained operation. The IP20 housing helps limit direct finger contact with live parts, which is why the controller is intended for installation in an enclosed panel. The allowable ambient temperature range is 0–45 °C, so rated current is available under standard factory conditions.

The controller accepts resolver feedback, allowing rotor position signals to be processed during acceleration and normal speed control. Installation altitude is limited to 1000 m, because reduced air density above that height affects cooling and insulation performance. When the machine is idle or in transit, the unit may be stored between -30–85 °C if condensation is avoided. The product is part of Line 02 and uses hardware version 1. These identifiers indicate the design revision of the controller within the DDS range.