HDS03.1-W075N-HS36-01-FW
The HDS03.1-W075N-HS36-01-FW is a digital drive controller manufactured by Bosch Rexroth Indramat for the HDS Drive Controllers series. It regulates servo axes in modular drive cabinets, linking motion commands from a CNC or PLC to the associated power sections. By converting high-level position or speed references into controlled current vectors, the unit coordinates real-time motor torque during indexing, speed regulation, and synchronized axis movement. This layout lets the controller act as the command and regulation stage between the machine control and the motor power section.
In operation, the controller exchanges cyclic setpoints and feedback over the SERCOS fiber-optic ring, which supports deterministic communication and synchronous axis updates. A continuous output capability of 75 A is the maximum motor current it can modulate without derating, so the connected motor must be matched to that thermal capacity. Heat generated by switching losses is removed through a built-in air blower, allowing installation inside a sealed cabinet without separate ducting. It is part of the DIAX04 family, so it shares parameter structure, diagnostic codes, and mechanical dimensions with other modules in that platform. This helps the controller fit into multi-axis cabinets where common mounting and communication methods are already in use.
The module is released as Version 1, indicating the first release of this model. It is part of Line 03, so the internal bus rails, plug-in auxiliary cards, and power connectors follow that line form. The unit is an HDS Drive Controller, which means motion control, communication, and diagnostics are handled on the same board set rather than in a separate control section. This arrangement keeps the regulation functions together while the associated power sections supply the commanded motor current.
