Product Description:

The HDS03.2-W075N-HS78-00-FW is a drive controller manufactured by Bosch Rexroth Indramat and placed within the HDS Drive Controllers series. It is intended to regulate and protect a single servo or spindle axis in modular multi-axis assemblies used on machining centers, packaging lines, and assembly stations. By modulating the supply from a common power section, the unit maintains torque, speed, and position loops for closed-loop industrial automation. This arrangement allows the controller to work as one axis node within a larger rack while responding to command changes from the central motion system. It is suited to applications that require stable axis regulation during acceleration, deceleration, and dwell periods.

It delivers up to 75 A of continuous output current, which sets the motor load range and the required supply conductor size for sustained operation. Communication with the motion controller takes place over the SERCOS optical bus, so parameter data, status words, and real-time setpoints move through noise-immune fiber loops. The optical link also reduces sensitivity to electrical noise that can be present near motor power wiring. Thermal management is handled by a built-in air blower, keeping the heat sinks below their derating point without external cabinet fans. The product is part of Line 03 in the series, which places it with compatible power sections and interface modules.

The naming suffix also places the controller in the DIAX04 family, so it shares the mechanical format and electrical platform used by related modules in the same system. Its architecture is classified as Version 2, meaning the control board uses second-generation logic with faster sampling for velocity and torque loops. That versioning helps distinguish this controller from earlier revisions within the same product line. Functionally, the unit is identified as an HDS Drive Controller. The controller can therefore fit cabinets built around the DIAX04 platform without requiring a different module style.