Product Description:

The DDS03.1-W050-RS01-02-FW is a Digital AC Servo Drive Controller produced by Bosch Rexroth Indramat and supplied within the DDS Drive Controllers series. Installed between the machine PLC and a matched servomotor, it receives velocity and position commands, modulates the motor currents, and returns status data for closed-loop automation. As a component built to drive resolver-equipped axes, it allows plant engineers to implement deterministic motion control over the SERCOS fiber-optic ring without adding proprietary gateways.

This controller delivers a continuous output of 50A, so the connected inverter section can handle medium-power rotary or linear motors without current derating in normal duty cycles. The housing carries a IP20 rating, which indicates finger-safe access while requiring placement inside an electrical cabinet. Communication with higher-level motion hardware is handled through the SERCOS interface; this real-time bus lets multiple drives share synchronization data at sub-millisecond intervals. Thermal energy is removed by internal air cooling, meaning the device draws cabinet air across its heat sinks and does not rely on an external blower. Continuous operation is specified for ambient ranges of 0 – 45°C, ensuring drive electronics remain within safe junction temperatures when panel ventilation is adequate. Resolver feedback is accepted on the motor side, giving absolute position data even during low-speed or standstill conditions.

Installation remains possible up to 1000 m above sea level without output reduction, so the unit covers most factory altitudes. When powered down, its electronics tolerate storage spans from -30 – 85°C, allowing shipment or warehouse staging in unconditioned areas. Control personality is locked by Function ID 01, and firmware variants are organized under Line 03; both identifiers aid service technicians when loading compatible firmware because this hardware is released as version 1. The specified resolver input and cabinet-air cooling complement the altitude and temperature limits so the drive can remain in service across varied industrial environments.