HDS03.1-W100N-HS08-01-FW
The HDS03.1-W100N-HS08-01-FW is a drive controller manufactured by Bosch Rexroth Indramat and supplied within the HDS Drive Controllers series. It occupies the HDS role in a multi-axis rack, converting commanded setpoints into controlled current for servo axes in industrial automation cells. In rack-based motion systems, the unit serves as the power and regulation stage for channels that require accurate torque and speed control. It is suited for applications where rapid command updates and stable current regulation are needed to keep axis motion consistent during changing load conditions.
This controller exchanges cyclic setpoint, status, and diagnostic data through the SERCOS fiber-optic interface, which provides deterministic timing and avoids analog drift during motion control. Fiber-optic communication also helps reduce susceptibility to electrical noise from nearby power devices in the cabinet. Thermal management is handled by a built-in air blower that directs cabinet air through the heat sink, so the unit remains within its rated temperature range without external ducting. The power section is designed for a continuous output of 100 A, giving it the capacity to drive medium-to-large servo motors that require high momentary torque. As part of the DIAX04 family, it uses the same general module format found across related platform components.
Within the product line, the controller is assigned to Line 03. The enclosure is arranged for operation on a common DC bus while maintaining galvanic isolation to the motor windings, which suits coordinated multi-axis layouts. This arrangement is useful in cabinets where several axes share incoming DC energy but operate as separate motor channels. This specific build is version 1, identifying the initial released revision for this part number. The output stage remains electrically separated from the connected motor phases while the rack distributes power through the shared bus structure.
