HDS03.1-W075N-HA27-01-FW

The HDS03.1-W075N-HA27-01-FW is a modular drive controller from Bosch Rexroth Indramat, supplied within the HDS Drive Controllers series. The module functions as the power and regulation stage for servo and spindle motors, converting DC bus energy into controlled three-phase output and returning regenerated power during deceleration. By coordinating with upstream supply units it stabilizes motor current, executes motion commands, and protects connected loads in industrial automation lines such as machining centers and material-handling equipment.

Motion data reach the controller through an ANALOG command interface that enables simple ±10 V velocity or torque references from PLCs. Continuous output capability is 75 A, so drive sizing can cover medium-power axes without external boosters. Thermal energy is expelled by a Built-in internal air blower, eliminating cabinet ducting and maintaining component temperature under rated current. The hardware belongs to the DIAX04 controller family and is identified inside that catalog as 03, indicating the third design line that standardizes mounting holes and back-plane connectors. Each of these attributes determines wiring practices, heat management, and permissible load inertia for the axis.

This hardware is released as Version 1, and the label shows that there are None alternative hardware variants sharing the same ordering code. Application engineers therefore match firmware precisely; the ‘-FW’ suffix flags that the operating firmware is delivered separately and must be flashed before commissioning the axis module. By coupling a dedicated supply unit over the DC bus, a single controller like this can govern one motor while exchanging status words across the system backbone, allowing coordinated acceleration profiles without increasing panel depth.