RD52.1-4N-007-L-NN-FW Bosch Rexroth Indramat
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MPN: R911200072
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The Bosch Rexroth Indramat RD52.1-4N-007-L-NN-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 7.5 kW. This first-generation controller uses field oriented vector control, operates on a voltage range of 380 to 480 V, and is cooled by forced air. It features an integrated mains filter and is designed as a converter for 3-phase AC supply.
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Product Description:
The RD52.1-4N-007-L-NN-FW drive controller is manufactured by Bosch Rexroth Indramat and assigned to the RD 500 Drive Controllers series. The device functions as a modular power stage that converts three-phase line energy into regulated motor voltage and current for industrial automation. From its cabinet-mounted position, it links PLC setpoints to the motor windings for precise velocity and torque control. This arrangement lets the controller adjust motor output as process demand changes during normal production. Typical duties include conveyor drives, fan regulation, and pump control where tight speed tracking and coordinated start-stop sequences are required.
Closed-loop regulation uses field-oriented vector control, which separately processes flux and torque components to keep the motor responsive across its speed range. This control method helps the motor remain stable during load changes and low-speed operation. Thermal management relies on forced-air cooling, so the mounting bay must accommodate the factory-installed airflow channel. The controller accepts line supply from 380 to 480 V, and electromagnetic interference is reduced by an integrated line filter on the input stage. Because it is delivered without a built-in brake chopper, regenerative braking energy must be returned to the line or dissipated by external hardware. The internal logic also monitors phase symmetry and disables output if the incoming supply is lost.
The power section is rated at 7.5 kW, giving the unit capacity for medium-duty production axes that experience intermittent overloads. Energy enters through a three-phase AC converter, and permissible fluctuations are limited to ±10% of the nominal voltage so control accuracy remains stable. The model is design generation 1, which matches early RD 500 option cards. This version is intended for applications that need regulated motor control from a cabinet-mounted drive rather than simple direct line starting.
Frequently Asked Questions about RD52.1-4N-007-L-NN-FW:
Q: What is the rated power of the RD52.1-4N-007-L-NN-FW drive controller?
A: The RD52.1-4N-007-L-NN-FW has a rated output power of 7.5 kW.
Q: What type of supply does the RD52.1-4N-007-L-NN-FW require?
A: This model operates on a 3-phase AC supply for its power input.
Q: What voltage range is supported by the RD52.1-4N-007-L-NN-FW?
A: The voltage input range for this drive controller is 380 to 480 V.
Q: What control type is used for the RD52.1-4N-007-L-NN-FW?
A: Field oriented vector control is the control method used by this drive controller.
Q: What cooling type does the RD52.1-4N-007-L-NN-FW feature?
A: Forced air cooling is used for thermal management in this model.
