Product Description:

The DDS03.1-W050-RA11-01-FW is a motion-control unit manufactured by Bosch Rexroth Indramat for the DDS Drive Controllers series. Installed on a modular power rail, it forms part of multi-axis systems where it converts DC bus energy into phased outputs that drive servomotors. By regulating torque and speed in closed loop, the module supports pick-and-place gantries, indexing tables, and packaging stations that repeat the same motion profile throughout long production runs.

The drive delivers up to 50 A of continuous output current, providing sufficient headroom for medium-frame motors that demand high acceleration during indexing and transfer moves. Command references are accepted through an analog interface, letting a PLC send ±10 V velocity or torque setpoints without digital networking overhead. Heat is removed by air drawn from inside the control cabinet, so the cabinet layout must leave a clear airflow path and avoid blocked ventilation areas. Rotor position returns via resolver feedback, which supplies angle information that is less vulnerable to electrical noise and pulse loss than incremental feedback devices. The unit is Version 1.

Within the DDS family, the unit is assigned to Line 03, which keeps it aligned with matching power supplies and fieldbus modules on the shared backplane. The controller uses Function ID Version 01, so control words are interpreted in a fixed format during operation. Classified as a Digital AC Servo Drive Controller, the module closes the loop between analog setpoints and three-phase motor currents without requiring additional interface cards. This arrangement suits applications where centralized control sends the motion command and the drive manages the current, speed, and position response locally.