RD52.1-4N-001-L-NN-P1-L1-FW Bosch Rexroth Indramat
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MPN: R911288886
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The Bosch Rexroth Indramat RD52.1-4N-001-L-NN-P1-L1-FW is a drive controller from the RD 500 Drive Controllers series. It supports a voltage range of 380 to 480 V with a ±10% tolerance and uses converter 3 x AC supply. The controller features field oriented vector control, forced air cooling, and comes with an integrated mains filter but without a built-in brake chopper.
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Product Description:
The RD52.1-4N-001-L-NN-P1-L1-FW drive controller is produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. This device converts fixed-frequency line power into variable voltage and frequency output, allowing precise adjustment of AC motor speed and torque in automated lines, material-handling stations, and process equipment. By combining power electronics with digital control logic, it serves as the central actuator interface between industrial control systems and the connected motor. This arrangement lets higher-level controls command motion while the drive manages the electrical output required by the motor.
The unit employs field-oriented vector control, so motor flux and torque are resolved in real time to maintain a steady dynamic response even under load changes. Its input section accepts a three-phase supply from 380 to 480 V; the topology uses a 3-phase AC converter arrangement that rectifies and inverts the incoming power. A voltage tolerance of ±10 % supports operation during moderate line fluctuations, while regulation algorithms compensate for resulting current variation. Thermal management relies on forced air cooling; a built-in fan draws cabinet air through the heat-sink fins so full output can be sustained without external liquid-cooling infrastructure. This control method helps the drive maintain smooth torque production as operating conditions change.
The unit operates without a built-in brake chopper, so excess regenerative energy must be handled by external braking resistors or returned to the line supply. Line-side interference is reduced by the integrated mains filter, which attenuates conducted emissions and improves compatibility with plant EMC requirements. The product is in generation 1 of the platform, which places it in the early RD 500 design group. The optional function slot is not equipped, so no additional communication or I/O module is installed in the controller housing. Because the slot is empty, the enclosure remains configured for the base drive arrangement only.
Frequently Asked Questions about RD52.1-4N-001-L-NN-P1-L1-FW:
Q: What supply voltage range is supported by the RD52.1-4N-001-L-NN-P1-L1-FW drive controller?
A: The RD52.1-4N-001-L-NN-P1-L1-FW operates on a voltage range of 380 to 480 V.
Q: What cooling method does the RD52.1-4N-001-L-NN-P1-L1-FW drive controller utilize?
A: This model uses forced air cooling to maintain proper operating temperature.
Q: What type of control does the RD52.1-4N-001-L-NN-P1-L1-FW drive controller provide?
A: Field oriented vector control is the control type of the RD52.1-4N-001-L-NN-P1-L1-FW.
Q: Does the RD52.1-4N-001-L-NN-P1-L1-FW have a built-in mains filter?
A: An integrated mains filter is included with this drive controller.
Q: Is a brake chopper built into the RD52.1-4N-001-L-NN-P1-L1-FW drive controller?
A: The RD52.1-4N-001-L-NN-P1-L1-FW does not include a built-in brake chopper.
