RD52.1-4B-007-L-NN-P1-L1-FW Bosch Rexroth Indramat
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MPN: R911288885
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The Bosch Rexroth Indramat RD52.1-4B-007-L-NN-P1-L1-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control and has a rated power of 7.5 kW, with an integrated brake chopper and mains filter. The controller operates on a 3-phase AC converter supply with a voltage range of 380 to 480 V and uses forced air cooling.
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Product Description:
Bosch Rexroth Indramat produces the RD52.1-4B-007-L-NN-P1-L1-FW, a member of the RD 500 Drive Controllers series. The device regulates induction or synchronous motors in factory automation lines, converting three-phase mains power into a controllable output. By executing vector algorithms, it allows precise speed and torque regulation across conveyors, pumps, or processing equipment. Within an automation cabinet, it integrates with higher-level PLCs through standard control interfaces and serves as the power stage of a closed-loop motion system.
The controller accepts a 380 to 480 V three-phase supply and tolerates line fluctuations of ±10 %, so standard industrial grids can feed the converter without external regulators. Internally, a rectifier section configured as a 3 x AC converter generates the DC link that supports a continuous mechanical output of 7.5 kW. Control is based on field-oriented vector control, which resolves stator currents into torque-producing and flux-producing components for dynamic response during load changes. This regulation method minimizes speed error and enables full torque at low frequencies, making the device suitable for tasks that demand high starting torque and smooth steady-state operation. It is not equipped with optional application-specific functions.
The thermal path relies on forced-air cooling, with an integral fan moving cabinet air across the heat sink to hold semiconductor junction temperatures within limits during sustained operation. For rapid deceleration events, an internal power stage operates as a built-in brake chopper, routing surplus DC bus energy to an external resistor rather than returning it to the mains. EMI compliance is aided by an integrated mains filter that suppresses conducted noise on the supply leads. The hardware is identified as Generation 1 within the RD 500 platform.
Frequently Asked Questions about RD52.1-4B-007-L-NN-P1-L1-FW:
Q: Does the RD52.1-4B-007-L-NN-P1-L1-FW drive controller have a built-in brake chopper?
A: The RD52.1-4B-007-L-NN-P1-L1-FW is equipped with a built-in brake chopper for handling regenerative energy.
Q: What is the input voltage range of the RD52.1-4B-007-L-NN-P1-L1-FW controller?
A: This drive controller supports an input voltage range of 380 to 480 V for flexible operation in industrial environments.
Q: How is the RD52.1-4B-007-L-NN-P1-L1-FW cooled during use?
A: Forced air cooling is utilized in this model to maintain optimal operating temperatures.
Q: What is the rated power of the RD52.1-4B-007-L-NN-P1-L1-FW drive controller?
A: The RD52.1-4B-007-L-NN-P1-L1-FW has a rated power output of 7.5 kW.
Q: What control type is implemented in the RD52.1-4B-007-L-NN-P1-L1-FW drive controller?
A: This model features field oriented vector control for precise motor control.
