RD51.2-5B-007-L-NN-FW Bosch Rexroth Indramat
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MPN: R911201477
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The Bosch Rexroth Indramat RD51.2-5B-007-L-NN-FW is a drive controller from the RD 500 Drive Controllers series. It has a rated power of 7.5 kW and operates with a voltage range of 500 V using a converter 3 x AC supply. This model uses U/f curve control, features a built-in brake chopper, and is cooled by forced air.
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Product Description:
The RD51.2-5B-007-L-NN-FW is a drive controller produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. Acting as a stand-alone converter, it interfaces between a plant’s three-phase mains and an induction motor, adjusting voltage and frequency so automated lines, packaging cells, and general machinery can match motor speed to process demand. By providing scalar regulation instead of field-oriented control, it offers reliable speed management for centrifugal pumps, fans, and conveyors that do not require rapid torque response. This operating approach suits applications where stable speed adjustment is more important than high-dynamic positioning behavior.
An integrated built-in brake chopper dissipates regenerated energy during rapid deceleration and helps prevent DC-bus overvoltage. Motor excitation follows U/f curve control, so output voltage rises in proportion to frequency to help maintain magnetic flux under varying load. Thermal limits are managed by forced air cooling, with an internal fan moving air across the heatsink so full output can be maintained inside control cabinets. The housing belongs to generation 2 of the RD family, and continuous mechanical power of 7.5 kW is available when the drive is supplied by a three-phase AC supply. This rating supports medium-size motors used in common variable-speed industrial duties.
The unit uses a separately ordered firmware card so the operating functions can be matched to the target machine. The hardware is supplied in a standard configuration, so added fieldbus, I/O, or motion features depend on external modules when they are required. The drive is intended for an input supply of 500 V, matching high-voltage industrial networks commonly found in European and Asian factories. In normal service, it is well suited to process equipment that needs dependable speed control under moderate load changes.
Frequently Asked Questions about RD51.2-5B-007-L-NN-FW:
Q: What series does the RD51.2-5B-007-L-NN-FW drive controller belong to?
A: The Bosch Rexroth Indramat RD51.2-5B-007-L-NN-FW belongs to the RD 500 Drive Controllers series.
Q: Does the RD51.2-5B-007-L-NN-FW include a brake chopper?
A: This drive controller features a built-in brake chopper for handling braking energy.
Q: What is the rated power output of the RD51.2-5B-007-L-NN-FW drive controller?
A: The rated power of the RD51.2-5B-007-L-NN-FW is 7.5 kW.
Q: How is the RD51.2-5B-007-L-NN-FW drive controller cooled?
A: The RD51.2-5B-007-L-NN-FW uses forced air cooling to maintain operating temperature.
Q: What type of supply and voltage range does the RD51.2-5B-007-L-NN-FW support?
A: This model operates on a 3-phase AC supply with a voltage range of 500 V.
