RD51.1-4B-007-L-D1-FW Bosch Rexroth Indramat
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MPN: R911200350
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The Bosch Rexroth Indramat RD51.1-4B-007-L-D1-FW is a drive controller from the RD 500 Drive Controllers series. It supports a rated power of 7.5 kW and operates on a voltage range from 380 to 480 V. This controller features U/f curve control, converter 3-phase AC supply, and includes a built-in brake chopper with forced air cooling.
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Product Description:
The RD51.1-4B-007-L-D1-FW drive controller is produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. The module serves as a variable-frequency power converter in industrial automation, linking a three-phase mains supply to asynchronous motors so that speed and torque can be matched to process demands across conveyors, pumps, and material-handling axes. By shaping voltage and frequency, it supports closed-loop or open-loop motion profiles, limits mechanical stress, and reduces energy use when full motor output is not required. Its design also includes braking and filtering functions that reduce the need for separate cabinet components.
Motor-side energy dissipation is handled by a built-in brake chopper, enabling controlled deceleration without external resistors. Output frequency follows a preset magnetization profile because the unit uses U/f curve control, a method suited for standard induction machines where sensor feedback is unnecessary. Internal heat is removed by forced air cooling, so panel ventilation must maintain unrestricted airflow. Mains-side electromagnetic interference is reduced by an integrated filter that attenuates conducted noise. The power section accepts three-phase AC input and can deliver up to 7.5 kW of nominal mechanical power to the connected motor load. Standby logic power can also be maintained with an external 24 V source through the NAMUR terminal strip.
The input network may fluctuate, yet the controller accommodates line voltages from 380 to 480 V and tolerates variations of ±10% without unnecessary tripping during common distribution swings. The unit is built to Generation 1, so any matching option cards or replacement parts must correspond to that release. This voltage tolerance helps the controller remain stable during normal plant supply variation while maintaining consistent drive operation.
Frequently Asked Questions about RD51.1-4B-007-L-D1-FW:
Q: What is the rated power of the RD51.1-4B-007-L-D1-FW drive controller?
A: The RD51.1-4B-007-L-D1-FW has a rated power output of 7.5 kW for handling moderate to high power applications.
Q: Does the RD51.1-4B-007-L-D1-FW include a brake chopper?
A: This model features a built-in brake chopper for controlling regenerative braking energy within the system.
Q: What type of control method does the RD51.1-4B-007-L-D1-FW use?
A: U/f curve control is supported by the RD51.1-4B-007-L-D1-FW for variable frequency operations.
Q: What supply voltage range does the RD51.1-4B-007-L-D1-FW accept?
A: The RD51.1-4B-007-L-D1-FW supports a voltage range of 380 to 480 V AC for its power supply.
Q: How is the RD51.1-4B-007-L-D1-FW drive cooled?
A: Forced air cooling is utilized in this drive to maintain optimal operating temperature.
