RD51.1-4N-030-L-NN-FW Bosch Rexroth Indramat
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MPN: R911200528
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The Bosch Rexroth Indramat RD51.1-4N-030-L-NN-FW is a drive controller in the RD 500 Drive Controllers series. It features a rated power of 30 kW and operates with a voltage range of 380 to 480 V, accepting a supply from a three-phase AC converter. This model includes forced air cooling, an integrated mains filter, and uses U/f curve control.
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Product Description:
The RD51.1-4N-030-L-NN-FW is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. As a configurable drive controller, it interfaces with standard automation hardware to vary motor speed and torque for conveyors, pumps, and other motion-centered stations on the factory floor. By modulating the output waveform rather than relying on mechanical gear changes, the unit supports efficient process control across a broad production range. In variable-speed systems, this control method can also reduce mechanical shock on belts, couplings, and pump trains during startup.
This model delivers a rated output of 30 kW while drawing power from a line voltage window of 380 to 480 V. It is supplied as a 3 x AC converter, allowing direct connection to three-phase mains with a permissible mains fluctuation of ±10 %. This input range suits common industrial supply systems and allows the same unit to serve installations with different nominal mains voltages. Motor regulation uses U/f curve control, so the stator voltage changes in proportion to frequency to maintain magnetic flux at low speeds. Heat generated by switching elements is removed through forced-air cooling, permitting continuous operation without external liquid circuits. An integrated mains filter attenuates conducted emissions, and the standard configuration avoids extra option boards that would increase cabinet complexity.
The unit is supplied without a built-in brake chopper, so applications that need dynamic braking require an external resistor and chopper module. Hardware revision tracking is indicated as design generation 1, which matches first-generation RD controller accessories. Control software is not preinstalled, and firmware must be ordered as a separate subposition so the drive can be loaded for the required application. All auxiliary function slots are unused in this version, which keeps the base configuration straightforward. This arrangement also leaves room for later expansion when additional functions are needed.
Frequently Asked Questions about RD51.1-4N-030-L-NN-FW:
Q: What is the rated power output for the RD51.1-4N-030-L-NN-FW drive controller?
A: The RD51.1-4N-030-L-NN-FW controller has a rated power of 30 kW.
Q: What input voltage range does the RD51.1-4N-030-L-NN-FW support?
A: This controller supports a voltage range from 380 to 480 V.
Q: Is a mains filter included with the RD51.1-4N-030-L-NN-FW?
A: The RD51.1-4N-030-L-NN-FW features integrated mains filtering for electrical noise reduction.
Q: What cooling method is used by the RD51.1-4N-030-L-NN-FW drive controller?
A: Forced air cooling is used in the RD51.1-4N-030-L-NN-FW for thermal management.
Q: What type of control is provided by the RD51.1-4N-030-L-NN-FW?
A: This model operates using U/f curve control for motor management.
