Product Description:

The RD52.1-8C-160-W-M1-FW is a drive controller produced by Bosch Rexroth Indramat and assigned to the RD 500 Drive Controllers series. It converts energy from a common DC bus into controlled three-phase output for large induction or synchronous motors used in industrial automation cells, conveyors, and process equipment. Software-managed current loops regulate torque and speed so the connected motor can respond smoothly to changing load conditions during continuous operation. That makes the unit suitable for applications that need controlled acceleration, steady speed holding, and regulated deceleration instead of direct-on-line motor starting. The unit uses the RD52 housing outline, which allows it to fit cabinet layouts built for this mechanical format.

The control platform uses field-oriented vector control, which separates stator current into flux and torque components for stable response at low motor speed and during rapid load changes. Because this method regulates magnetic flux independently from torque production, the drive can maintain predictable behavior across a broad operating range. Thermal management relies on liquid cooling, allowing continuous operation at a rated power of 160 kW without depending on cabinet air circulation. The power stage operates from an inverter DC link and is intended for a 700 V bus, supporting shared supply arrangements in high-power systems. This arrangement suits installations where several power modules operate from the same central DC source and require consistent output regulation.

In application files, the controller is configured to operate as RD51 SFT, so its parameter structure follows that operating format. It is supplied without output chokes, which means any required motor-side filtering must be added externally to limit cable-related current effects. External choke selection depends on the motor cable arrangement and any filtering needs of the installation, since the drive itself does not include that component. The cabinet arrangement is identified as an SFT inverter, indicating that the unit serves as a self-contained power stage within multi-module RD systems. This layout is used where several specialized modules are combined in one enclosure and each section performs a dedicated conversion or control task.