RD52.1-4B-030-L-NN-NN-NN-FW Bosch Rexroth Indramat
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MPN: R911289499
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The Bosch Rexroth Indramat RD52.1-4B-030-L-NN-NN-NN-FW is a drive controller in the RD 500 Drive Controllers series. It features a rated power of 30 kW, operates on a voltage range of 380 to 480 V, and uses a converter 3 x AC supply. This controller has field oriented vector control, built-in brake chopper, forced air cooling, and an integrated mains filter.
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Product Description:
The RD52.1-4B-030-L-NN-NN-NN-FW is a drive controller manufactured by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. Intended for three-phase industrial networks, it governs induction or synchronous motors by varying output frequency and voltage so that commanded speed or torque is achieved during normal machine operation. The unit integrates power electronics, control logic, and protective hardware in one housing, which supports cabinet installation in automated production lines, process equipment, and other industrial systems.
The controller supplies a continuous output of 30 kW, which suits mid-capacity pumps, extruders, and material-handling axes. It accepts mains between 380 to 480 V and tolerates line deviations of ±10 %, helping it remain stable when the plant supply fluctuates. Motor regulation is handled with field-oriented vector control, which keeps flux and torque components separate for accurate dynamic response at changing loads and speeds. Internally, the converter rectifies the three-phase input and then reconstructs a variable-frequency waveform so the motor can accelerate, decelerate, and hold commanded speed in a controlled manner without abrupt torque changes. No factory-installed special functions are included.
Input energy reaches the DC link through a 3 x AC converter topology, and surplus regenerative power is dissipated by the built-in brake chopper, which can reduce the need for external braking hardware in many applications. Component heat is removed by forced air cooling, with directed airflow helping the semiconductors remain within permissible operating limits during extended full-load duty. To suppress conducted electromagnetic noise, an integrated mains filter attenuates high-frequency currents before they return to the supply and affect nearby equipment. The hardware belongs to Generation 1 of the RD52 platform.
Frequently Asked Questions about RD52.1-4B-030-L-NN-NN-NN-FW:
Q: Does the RD52.1-4B-030-L-NN-NN-NN-FW include a brake chopper?
A: The RD52.1-4B-030-L-NN-NN-NN-FW features a built-in brake chopper for efficient energy management during braking.
Q: What control method does the RD52.1-4B-030-L-NN-NN-NN-FW utilize?
A: This drive controller uses field oriented vector control for precise and dynamic motor regulation.
Q: What type of cooling is used in the RD52.1-4B-030-L-NN-NN-NN-FW drive controller?
A: Cooling is provided by forced air, ensuring reliable temperature control during operation.
Q: What voltage range does the RD52.1-4B-030-L-NN-NN-NN-FW support?
A: The RD52.1-4B-030-L-NN-NN-NN-FW supports a voltage range of 380 to 480 V to match industrial power systems.
Q: What is the rated power of the RD52.1-4B-030-L-NN-NN-NN-FW drive controller?
A: This model has a rated power output of 30 kW, suitable for high-capacity drive requirements.
