RD52.1-4N-001-L-V1-P1-NN-FW Bosch Rexroth Indramat
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MPN: R911288925
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The Bosch Rexroth Indramat RD52.1-4N-001-L-V1-P1-NN-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control and has a voltage range of 380 to 480 V with an integrated mains filter. The unit uses forced air cooling and operates with external 24 V stand-by power.
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Product Description:
The RD52.1-4N-001-L-V1-P1-NN-FW is a modular drive controller produced by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It converts fixed-frequency three-phase power into variable-frequency output so that induction or synchronous motors can be speed regulated within automated machinery, conveyor lines, or process equipment. By closing the current and flux loops electronically, the unit supplies commanded torque and speed in precise alignment with the requirements of modern PLC-based motion tasks.
The controller executes field-oriented vector control, meaning motor phase currents are resolved into orthogonal components so that flux and torque are regulated independently for fast dynamic response. Its input section accepts a line voltage from 380 to 480 V, and because it is specified as a three-phase AC converter, the unit is wired directly to a three-phase mains supply rather than a DC link. Component deviations in current, voltage, and frequency are accommodated within a ±10 % tolerance, allowing stable operation on utility grids that experience modest fluctuations. Thermal management is handled by forced air cooling, and an internal fan moves airflow across heat-dissipating surfaces so the power stage maintains its rated temperature.
Because the unit is supplied without a built-in brake chopper, any regenerative energy during rapid deceleration must be redirected to an external resistor or returned to the supply bus. Line-side interference is reduced by the integrated mains filter, which attenuates conducted radio-frequency noise and helps keep the installation within EMC limits. Control electronics remain energized through an external 24 V standby power connection, so parameter memory and fieldbus links stay active even when the main power stage is isolated. Its classification as design generation 1 identifies the product generation used for early RD 500 platforms.
Frequently Asked Questions about RD52.1-4N-001-L-V1-P1-NN-FW:
Q: Does the RD52.1-4N-001-L-V1-P1-NN-FW drive controller include a mains filter?
A: The RD52.1-4N-001-L-V1-P1-NN-FW is equipped with integrated mains filtering to help minimize electrical noise.
Q: What supply voltage range does the RD52.1-4N-001-L-V1-P1-NN-FW operate on?
A: This model supports a supply voltage range of 380 to 480 V AC, suitable for industrial power networks.
Q: What cooling method is used for the RD52.1-4N-001-L-V1-P1-NN-FW drive controller?
A: Forced air cooling is utilized on this unit to maintain thermal stability during operation.
Q: Which control method does the RD52.1-4N-001-L-V1-P1-NN-FW drive controller use?
A: Field oriented vector control is provided for precise drive performance in this model.
Q: Is a brake chopper included with the RD52.1-4N-001-L-V1-P1-NN-FW drive controller?
A: The RD52.1-4N-001-L-V1-P1-NN-FW does not have a built-in brake chopper.
