Product Description:

The HDS03.2-W100N-HT77-01-FW is a digital drive controller from Bosch Rexroth Indramat in the HDS Drive Controllers series. Designed for installation in modular drive racks, it provides closed-loop regulation for servo and main spindle axes in machining centers, packaging lines, and assembly systems. In operation, it converts rack-supplied power into controlled motor current so commanded torque and speed can be maintained during changing load conditions. The unit communicates over a synchronous fiber network and generates current and velocity profiles for the connected motors, making it suitable for both single-axis updates and larger automated cells.

Its command channel is the SERCOS fiber-optic interface, so control words, status data, and parameters move over a deterministic serial ring. That link supports synchronized data exchange between the controller and the higher-level motion system. The controller is part of the DIAX04 family, which allows it to fit alongside matching modules in the same system. Continuous armature demand is capped at a rated current of 100 A, which is the maximum RMS output the drive can deliver under steady-state conditions. Heat is removed by a built-in air blower, which keeps switching losses concentrated in the heat sink path instead of relying on external cabinet airflow. The unit is Version 2, indicating the product generation for this drive type.

The unit is part of Line 03, so it aligns mechanically with adjacent modules inside the rack. It can share a common DC bus with neighboring drives, which supports compact multi-axis layouts in the cabinet. The rack format also helps keep wiring paths short between power modules and axis controllers. Signal routing across the multi-axis bus stays isolated from the heat removed through the cooling tunnel. This separation keeps control signals away from the main airflow path inside the enclosure.