Product Description:

The RD52.1-4B-160-F-W1-FW is a drive controller manufactured by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. The module functions as the closed-loop interface between the plant’s three-phase mains and an asynchronous or synchronous motor, supplying regulated current and frequency to match process demands. By converting fixed-frequency input into variable output vectors, it supports coordinated motion tasks, positioning duties, and continuous-duty power conversion in automated production lines. It is intended for cabinet installation where high power density and integrated power electronics reduce overall panel size.

The controller connects to a three-phase AC supply and accepts line voltages from 380 to 480 V, allowing installation on standard industrial feeders with a ±10 % mains fluctuation margin. Its continuous output capacity reaches 160 kW, which is suitable for extruders, centrifuges, or large conveyor drives. The internal algorithms rely on field-oriented vector control, separating torque and flux vectors so closed-loop speed deviations remain minimal under load changes. The controller is part of design generation 1.

Thermal and power management components are built into the unit. Forced air cooling with integrated liquid circulation removes heat from the semiconductor modules so full-load operation can be sustained in sealed cabinets. A built-in brake chopper dissipates regenerated energy during fast deceleration, eliminating the need for external braking resistors on high-inertia axes. Electromagnetic compliance is supported by an integrated mains filter that reduces conducted interference at the drive input. The unit also provides 95 mm² terminals on the C and F connections for conductors carrying stator current, which suits cables used with controllers rated at 132 kW and above and helps limit temperature rise at the lugs during sustained loading.