RD52.1-4N-090-L-F1-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911201338
Ask for AvailabilityThe Bosch Rexroth Indramat RD52.1-4N-090-L-F1-FW is a drive controller from the RD 500 Drive Controllers series. It supports a rated power of 90 kW, uses field oriented vector control, and operates on a voltage range from 380 to 480 V with a ±10% tolerance. This controller features integrated mains filtering, forced air cooling, and feedback of current filter, and is designed for 3-phase AC converter supply.
Internal Product Review
The RD52.1-4N-090-L-F1-FW is a Bosch Rexroth Indramat drive controller with field oriented vector control and a 90 kW rating. Forced air cooling and an integrated mains filter support stable operation and clean cabinet integration in demanding drive systems. A 380 to 480 V converter 3 x AC supply gives the controller strong application range for high-power industrial service.
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Product Description:
The RD52.1-4N-090-L-F1-FW drive controller is produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. Designed for closed-loop AC motor applications, it regulates speed and torque in factory automation cells, conveying equipment, and continuous-process lines. Acting as the power interface between a three-phase mains supply and the motor, the unit converts and modulates energy so that vector commands from a higher-level controller translate into accurate mechanical motion. This control method supports smooth acceleration, steady running, and responsive correction when the driven load changes.
It employs field-oriented vector control, so motor flux and torque are resolved in real time for precise response under varying loads. The drive is rated for 90 kW of continuous output power when thermal limits are observed. Its input range is 380 to 480 V three-phase, and the front end uses a Converter 3 x AC stage that rectifies and stabilizes the DC link internally. Heat is removed by forced air cooling, and integral fans move air across the heat sink to protect semiconductor junctions. U6, V6, and W6 current-filter feedback signals are available for diagnostics and output-stage monitoring during operation.
An integrated mains filter attenuates conducted emissions and can reduce the need for external line chokes on supply connections shared with other equipment. Because the unit is supplied without a built-in brake chopper, applications that require dynamic braking must connect an external resistor to the DC link. The permissible supply fluctuation is ±10%, allowing the controller to remain stable during common voltage dips or rises on industrial networks. The unit is classified as design generation 1 and shares mechanical dimensions and interface conventions with other first-generation RD 500 modules used in the same platform.
