RD52.1-4N-004-L-NN-FW Bosch Rexroth Indramat
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MPN: R911200070
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The Bosch Rexroth Indramat RD52.1-4N-004-L-NN-FW is a drive controller designed as part of the RD 500 Drive Controllers series. It uses field oriented vector control and supports a voltage range of 380 to 480 V with a tolerance of ±10 percent. The controller features forced air cooling, an integrated mains filter, and operates without a built-in brake chopper.
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Product Description:
The RD52.1-4N-004-L-NN-FW belongs to the RD 500 Drive Controllers series developed by Bosch Rexroth Indramat. It is used in industrial automation to regulate torque and speed on three-phase motors, linking higher-level PLCs with the power stage that drives the equipment. By combining signal processing with power conversion, the unit serves as the central control element in conveyor, packaging, and machining lines that demand precise closed-loop motor behavior. This arrangement helps the drive respond quickly to load changes while maintaining stable motor operation during continuous production.
This controller executes motor modulation through field-oriented vector control, allowing independent adjustment of flux and torque components for accurate dynamic response. The power section accepts a line supply of 380 to 480 V and uses a three-phase AC converter configuration, meaning it rectifies a three-phase mains input before generating a variable-frequency output. Momentary input variations of ±10% are permitted, which eases installation on distribution systems with modest voltage swing. Thermal management relies on forced air cooling, and an internal fan moves ambient air across heat-sink fins to remove switching losses. For electromagnetic compatibility, an integrated mains filter suppresses conducted emissions so additional external filtering is usually unnecessary.
The power stage is supplied without a built-in brake chopper, so external braking hardware is required whenever rapid deceleration or overhauling loads must dissipate regenerated energy. When an application returns braking energy to the DC bus, that external dissipation path helps prevent overvoltage during stopping cycles. The unit is Design generation 1, matching the connector style and component layout used in first-generation RD 500 modules. Control software is not factory preloaded, and it is ordered separately so the selected version can match the installed option cards and system requirements.
Frequently Asked Questions about RD52.1-4N-004-L-NN-FW:
Q: What supply voltage does the RD52.1-4N-004-L-NN-FW drive controller support?
A: The RD52.1-4N-004-L-NN-FW operates with a supply voltage range of 380 to 480 V AC.
Q: What control method is used by the RD52.1-4N-004-L-NN-FW?
A: This model features field oriented vector control for precise motor management.
Q: How is the RD52.1-4N-004-L-NN-FW drive controller cooled?
A: Forced air cooling is used to regulate the operating temperature of this drive controller.
Q: Does the RD52.1-4N-004-L-NN-FW come with a built-in mains filter?
A: An integrated mains filter is included in the RD52.1-4N-004-L-NN-FW.
Q: Is a brake chopper included in the RD52.1-4N-004-L-NN-FW drive controller?
A: There is no built-in brake chopper in the RD52.1-4N-004-L-NN-FW model.
