HDS03.1-W075N-HA27-01-FW
The HDS03.1-W075N-HA27-01-FW is a modular digital drive controller produced by Bosch Rexroth Indramat as part of the HDS Drive Controllers series. Within an Indramat multi-axis system, this unit manages servo power modules and delivers axis-specific control for precision motion tasks in industrial automation cells. It receives reference values, processes feedback, and issues gate signals to the connected power stage. This arrangement lets the controller serve as the regulation stage between the system supply and the driven motor axis. The controller interfaces to the shared DC bus, supports motor feedback modules, and mounts on a common backplane beside its DSM power supply.
The controller accepts command values through an analog interface, making it compatible with legacy velocity or torque references generated by PLC analog outputs. This also supports retrofit layouts that still use analog setpoint generation. Its power section is rated for a continuous DC-bus current of 75 A, enabling it to drive medium-to-large synchronous or induction servo motors without derating. Thermal management relies on a built-in air blower, so the cabinet must provide unobstructed airflow paths for stable cooling during operation. Within the product coding system, it belongs to Line 03 and is released as Version 1.
The controller is part of the DIAX04 family, allowing it to share backplane communications and safety relays with adjacent axes in the same rack. Because it mounts on a common platform, control wiring and system power distribution stay concentrated within the drive assembly instead of being split across separate housings. The backplane arrangement supports organized module-to-module signal routing across a multi-axis drive set. Common rack mounting keeps the control stage aligned with the related power modules during installation.
