RD51.1-5N-015-L-D1-FW Bosch Rexroth Indramat
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MPN: R911200278
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The Bosch Rexroth Indramat RD51.1-5N-015-L-D1-FW is a drive controller from the RD 500 Drive Controllers series. It offers a rated power of 15.0 kW, utilizes U/f curve control, and is designed for converter 3 x AC supply with a voltage range of 500 V. The unit features forced air cooling and comes without a built-in brake chopper.
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Product Description:
The RD51.1-5N-015-L-D1-FW is a drive controller produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It regulates three-phase induction motors in automated material-handling, pumping, and process equipment by adjusting stator frequency and voltage according to commanded speed or torque profiles. This unit is installed in a control cabinet, connects to higher-level PLCs through terminal strips, and supports general-purpose industrial drive tasks. Because it varies both frequency and applied voltage, it can match motor speed to changing process demand instead of operating only at fixed line frequency. That makes it suitable for conveyor sections, pump skids, and similar equipment that benefits from smooth speed adjustment.
The controller delivers a rated output of 15.0 kW, allowing it to run medium-frame motors without exceeding thermal limits. Its DC link is derived from a mains window centered on 500 V, and the input stage is arranged as a three-phase AC converter, so the unit expects a balanced three-phase supply. Motor magnetizing voltage is managed through U/f curve control, which keeps flux stable across the speed range without requiring encoder feedback. Heat is removed by forced air cooling from a top-mounted blower, helping the drive maintain a stable internal temperature during continuous duty. The balanced supply arrangement fits standard industrial power systems, and the continuous airflow supports extended operation under load.
The unit is supplied without a built-in brake chopper, so dynamic braking applications require an external resistor bank to absorb returned energy. Field connections are handled through an integrated NAMUR terminal strip, and an external 24 V standby power input keeps the control electronics active when the main power stage is unavailable. The hardware belongs to Generation 1 and uses that design revision of the controller platform. When rapid deceleration is required, the external resistor path must handle regenerated energy outside the drive housing. Keeping the control electronics active through the standby supply can preserve command and monitoring functions while the main power path is off.
Frequently Asked Questions about RD51.1-5N-015-L-D1-FW:
Q: Does the RD51.1-5N-015-L-D1-FW include a built-in brake chopper?
A: The RD51.1-5N-015-L-D1-FW is provided without a built-in brake chopper for braking energy management.
Q: What type of control does the RD51.1-5N-015-L-D1-FW drive controller utilize?
A: This model uses U/f curve control for motor speed regulation.
Q: How is the RD51.1-5N-015-L-D1-FW drive controller cooled?
A: Forced air cooling is employed on this drive controller to maintain operating temperatures.
Q: What is the rated output power of the RD51.1-5N-015-L-D1-FW drive controller?
A: The RD51.1-5N-015-L-D1-FW is rated for 15.0 kW of output power.
Q: What supply type and voltage range does the RD51.1-5N-015-L-D1-FW require?
A: This drive controller supports a 3-phase AC supply with a voltage range of 500 V.
