RD52.1-4B-005-L-NN-P1-L2-FW Bosch Rexroth Indramat
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MPN: R911288581
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The Bosch Rexroth Indramat RD52.1-4B-005-L-NN-P1-L2-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control and a built-in brake chopper. The unit offers a rated power of 5.5 kW, uses forced air cooling, and supports a voltage range of 380 to 480 V with integrated mains filtering.
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Product Description:
The RD52.1-4B-005-L-NN-P1-L2-FW is a three-phase AC drive controller produced by Bosch Rexroth Indramat and included in the RD 500 Drive Controllers series. Intended for cabinet-mounted automation, the unit converts mains power into regulated motor voltage and current so that speed, torque, and dynamic braking of induction or synchronous machines can be adjusted with closed-loop precision throughout conveyor, packaging, or process lines. By integrating control and power electronics in one chassis, it serves as the interface between plant-level PLC commands and the rotating load.
The controller accepts a line voltage of 380 to 480 V and maintains operation within a fluctuation margin of ±10 %. The power stage is rated at 5.5 kW, allowing that mechanical output with a matched motor. Energy is drawn through a Converter 3 × AC input bridge that rectifies all three phases to the DC link. Motor flux and torque are regulated by field-oriented vector control, an algorithm that resolves stator currents into d-axis and q-axis components for fast response and accurate low-speed regulation. These electrical limits and the control method establish the operating range of the RD52.1 unit.
A built-in brake chopper supervises the DC bus and diverts excess energy to a resistor, preventing overvoltage during fast stops. Heat from the power semiconductors is removed by forced air cooling, so cabinet airflow must be provided for continuous duty. Conducted emissions are reduced by an integrated mains filter, which helps with EMC compliance. The platform is listed as Design generation 1, and no optional functions are fitted, giving it a lean configuration that still provides standard drive control, monitoring, and fault diagnostics for general motion tasks.
Frequently Asked Questions about RD52.1-4B-005-L-NN-P1-L2-FW:
Q: Does the RD52.1-4B-005-L-NN-P1-L2-FW include a brake chopper?
A: This model has a built-in brake chopper for dynamic braking requirements.
Q: What supply voltage range does the RD52.1-4B-005-L-NN-P1-L2-FW support?
A: The RD52.1-4B-005-L-NN-P1-L2-FW supports a voltage range of 380 to 480 V AC.
Q: What cooling method is used in the RD52.1-4B-005-L-NN-P1-L2-FW drive controller?
A: Forced air cooling is utilized in this unit to maintain optimal operating temperature.
Q: What type of control is available in the RD52.1-4B-005-L-NN-P1-L2-FW?
A: This drive controller provides field oriented vector control for accurate motor management.
Q: What is the rated power output of the RD52.1-4B-005-L-NN-P1-L2-FW?
A: The RD52.1-4B-005-L-NN-P1-L2-FW has a power rating of 5.5 kW for supported drive applications.
