Product Description:

The HDS03.2-W100N-HT04-01-FW is a modular drive controller produced by Bosch Rexroth Indramat for the HDS Drive Controllers series. The unit converts motion commands from higher-level controls into regulated three-phase output for servo and spindle motors. In automated assembly cells, material-handling gantries, and machining centers, it supports coordinated speed, torque, and position control. When installed in a DIAX04 multi-axis rack, it shares a common DC bus and fits the compact module arrangement used in that platform. That arrangement lets several axes operate from one power structure while the controller regulates motor current for precise motion.

Communication with the CNC or PLC is handled through the SERCOS interface, which provides deterministic timing on the optical ring. Internal heat is managed by a built-in air blower that moves air across the power semiconductors and heat sink surfaces without requiring external fans. The power stage can supply up to 100 A of continuous output current for axes that require high torque. This current capacity suits demanding servo and spindle applications where the controller must respond quickly to changing load conditions. Because communication and power conversion occur in the same module, command updates and motor response stay tightly coordinated during interpolation and speed changes.

This model is assigned to Line 03, which uses the cabinet width, busbar spacing, and connector layout associated with this drive class. The unit is Version 2, and that revision includes updated gate-drive circuitry with expanded diagnostic functions. It accepts fiber-optic command traffic inside the rack and is intended for medium-capacity axes in multi-axis systems. The controller remains compatible with earlier rack backplanes, so it can be installed in existing layouts that use the same platform.