HDS03.1-W075N-HA21-01-FW
The HDS03.1-W075N-HA21-01-FW drive controller is manufactured by Bosch Rexroth Indramat and belongs to the HDS Drive Controllers series. It acts as the power and control interface between a higher-level PLC and synchronous or asynchronous servo axes, converting motion commands into regulated three-phase output for packaging, printing, and material-transfer equipment. It regulates motor voltage and current so commanded torque and speed can be followed accurately during production cycles. The module is intended for rack installation beside companion supply units, and it communicates with the central motion controller through front-panel connections.
Motion reference signals reach the controller through an analog interface, so ±10 V speed or torque setpoints from legacy or modern PLC hardware can be accepted without protocol conversion. This allows the unit to work with controllers that use electrical reference signals instead of digital network commands. Internal temperature and semiconductor losses are managed by a built-in air blower, which keeps cooling self-contained and avoids external ducting. The power stage is rated for 75 A continuous current, providing current capacity for rapid load changes on medium-to-large servo motors. Because the unit is part of the DIAX04 platform, it uses the connector arrangement and control structure associated with that system. A dedicated front connector marked as the command interface separates low-level reference wiring from high-energy motor leads, which helps reduce signal noise.
The unit is part of Line 03, which uses the slot width, connector pitch, and auxiliary bus positions assigned to that design line. The controller is Version 1, indicating the first revision for this configuration. It is classified as an HDS Drive Controller, placing it in the axis amplifier group used for coordinated servo control. In a rack assembly, these identifiers distinguish this unit from modules that use other current classes or different control arrangements.
