HDS03.1-W075N-HS79-01-FW
The HDS03.1-W075N-HS79-01-FW is a drive controller built by Bosch Rexroth Indramat and assigned to the HDS Drive Controllers series. It occupies a power slot in a DIAX04 rack and interfaces with supply modules to command multiple servo axes used in industrial automation cells, transfer lines, and other coordinated systems. Acting as the central regulator, it converts incoming DC bus energy into controlled three-phase output so that connected motors can follow programmed motion profiles for positioning, speed regulation, synchronized starts and stops, and other multi-axis tasks.
This controller can deliver a continuous output of 75 A, which is the maximum RMS phase current available before thermal limits are reached. Command data enter the unit through the SERCOS fiber-optic interface, enabling deterministic real-time communication with the motion CPU while maintaining high noise immunity inside large cabinets. Its fiber-optic link also supports synchronous command execution across linked axes. Heat generated by the power electronics is removed by a built-in air blower, so cabinet air is pulled across the heat sink without external ducting. The controller is part of Line 03, which sets its housing size and slot width for standardized installation.
The drive is in Version 1, which supports the current loop, velocity loop, and SERCOS communication layers used by this platform. It is classified as an HDS drive controller, so its gating logic, cooling path, and protective functions are intended for servo applications rather than spindle or general inverter duties. The module can operate with compatible supply and axis units on the same platform without wiring adapters, while maintaining uniform grounding and DC bus geometry across the rack. This arrangement supports rapid acceleration, cyclic braking, and precise holding torque control during repeated machine cycles.
