HDS03.2-W100N-HS78-01-FW
The HDS03.2-W100N-HS78-01-FW is a drive controller manufactured by Bosch Rexroth Indramat and placed within the HDS Drive Controllers series. It sits between the motion control CPU and the servo motor, translating high-level setpoints into regulated phase currents. In industrial automation cells, the device supports axis functions such as velocity-loop closure, position interpolation, and safety shutdown so packaging, printing, and material-handling machinery can run repeatable cycles without added external relay logic. It also maintains the internal control response needed when an axis is accelerating, decelerating, or correcting position under changing load conditions.
Its command communication interface is SERCOS, allowing cyclic setpoints, feedback, and status data to pass over a deterministic fiber-optic loop. The controller can supply up to 100 A of continuous motor current, which suits medium-power servo axes that require sustained torque. Cooling is handled by a built-in air blower, so heat is guided along the fin channels while enclosure airflow remains separated from the electronics. This arrangement supports enclosed cabinet layouts where predictable thermal flow is important during long duty cycles. The controller is part of Line 03, which uses connector orientation and mounting dimensions consistent with other third-generation units. As a member of the DIAX04 family, it uses parameter words and diagnostics shared across multiple drive sizes.
The module is identified as an HDS Drive Controller with revision 2, so software tools can select the correct object dictionary and fault code table. When paired with supply modules on a common DC bus, the controller synchronizes trigger messages over the optical ring so neighboring axes can accelerate or decelerate in step. This timing relationship helps coordinated axes follow the same machine sequence during transfer, indexing, and synchronized feed motions.
