Product Description:

The DDS02.1-W025-RS03-03-FW is a digital AC servo drive controller produced by Bosch Rexroth Indramat within the DDS Drive Controllers series. It regulates torque, speed, and position of compatible servo motors in automated machinery through closed-loop control. The unit is intended for multi-axis systems, where it coordinates commanded motion and processes motor feedback to maintain accurate axis performance on production lines and material-handling equipment. In normal operation, it serves as the link between the control system and the motor so motion remains consistent during speed changes, positioning moves, and repeated production cycles.

Communication with higher-level PLCs is handled over the SERCOS interface, a fiber-optic ring that carries real-time setpoints and diagnostic data at deterministic cycle times. The drive delivers a continuous output of 25 A, so compatible motors and connected conductors must be matched to that current level. Cooling uses air from inside the control cabinet, and cabinet airflow must keep the electronics within the 0 to 45 °C operating range. Motor position is reported through resolver feedback, a sine-cosine transducer that tolerates vibration well because it has no optical components. An IP20 protection rating permits installation only in closed electrical cabinets, where accidental contact and conductive dust are limited.

The controller can be installed at elevations up to 1000 m above sea level without derating, so normal air density remains sufficient for heat removal across the internal heat sinks. For warehousing and transport, it tolerates temperatures from -30 to 85 °C when the unit is not operating. The product is part of line 02 and is version 1. These identifiers distinguish the unit within the series and help place it in the correct design group for compatible system use.