Product Description:

The HDS03.2-W075N-HS32-01-FW is a modular drive controller manufactured by Bosch Rexroth Indramat and assigned to the HDS Drive Controllers series. Installed in multi-axis DIAX04 racks, the unit links digital motion commands from the plant controller to the power stages that energize synchronous or induction motors. Its role in industrial automation is to generate precise current loops, enabling coordinated speed and position regulation across printing, packaging, or material-handling stations. By regulating output current in real time, it helps connected motors follow commanded acceleration, speed, and stopping profiles. It also serves as a central axis module and supervises protective functions such as overcurrent monitoring.

Communication with the motion controller is established through the SERCOS optical ring, a deterministic serial bus that carries setpoints and feedback at high data rates. Within that network, the drive has a rated current of 75 A, so the control system can assign axis loads within the available power range. As part of the DIAX04 family, it uses the same parameter handling and diagnostic telegram structure as related modules. Torque commands arrive through the command interface, and the output stage uses pulse-width modulation to regulate motor current during rapid reversals and other dynamic moves. This closed-loop exchange helps reduce following error and supports coordinated motion when several axes share a common DC bus.

Thermal stability is maintained by a built-in air blower that moves cooling air across the heat-sink fins, so external fan trays are unnecessary for most cabinet layouts. The unit is part of Line 03 and Version 2, which identify its design line and version in the product range. Forced airflow at the module keeps heat away from the power section during sustained operation in enclosed control cabinets. In a shared DC-bus system, the controller can operate alongside other axes while maintaining the current limits assigned to each motor channel.