RD51.1-4N-200-R-NN-FW Bosch Rexroth Indramat
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MPN: R911203218
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The Bosch Rexroth Indramat RD51.1-4N-200-R-NN-FW is a drive controller from the RD 500 Drive Controllers series. It features liquid cooling with an internal pump for power ratings greater than or equal to 132 kW and operates with a 200 kW rated power. This controller uses U/f curve control and supports a voltage range of 380 to 480 V.
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Product Description:
The RD51.1-4N-200-R-NN-FW belongs to the RD 500 Drive Controllers series produced by Bosch Rexroth Indramat. As a drive controller, it interfaces between the plant power line and an induction motor, executing speed and torque commands in material handling systems, pumping stations, and other industrial equipment. The unit is supplied as a controller module for integration into a larger drive system, so protective and application-specific accessories can be selected separately where needed. Its standard configuration does not include optional function modules, leaving the expansion positions available for compatible add-on hardware when the application requires extra functions.
Rated output is 200 kW, which suits high-demand loads such as centrifuges, compressors, and other heavy-duty machines that place sustained demand on the power stage. It accepts line voltages from 380 to 480 V and maintains regulation with a supply variation of ±10 %, supporting stable operation where plant supply conditions fluctuate within the permitted range. Motor excitation follows U/f curve control, a scalar method that keeps magnetic flux nearly constant during speed changes and fits applications that do not depend on closed-loop motor feedback. Thermal energy from the power stage is removed through liquid cooling with internal pump in higher-power installations, which helps keep cabinet heat under control and reduces the thermal load on surrounding components.
The cabinet section includes an integrated mains filter that reduces conducted emissions returned to the utility grid and helps limit interference on adjacent electrical equipment. For dynamic braking, the controller is supplied without built-in brake chopper, so applications that require rapid deceleration must use an external resistor module. Input power is fed through a three-phase AC converter arrangement, giving the rectifier stage direct access to the incoming line supply for DC bus charging. The unit is design generation 1, identifying the first release of this RD 500 design.
Frequently Asked Questions about RD51.1-4N-200-R-NN-FW:
Q: What type of control does the RD51.1-4N-200-R-NN-FW drive controller use?
A: The RD51.1-4N-200-R-NN-FW has U/f curve control for motor regulation.
Q: What input voltage range is compatible with the RD51.1-4N-200-R-NN-FW?
A: This drive controller supports a voltage range of 380 to 480 V for its input supply.
Q: What cooling method is utilized in the RD51.1-4N-200-R-NN-FW drive controller?
A: Liquid cooling with an internal pump is used for models rated at or above 132 kW.
Q: What is the rated power output of the RD51.1-4N-200-R-NN-FW?
A: The RD51.1-4N-200-R-NN-FW is designed for a rated power output of 200 kW.
Q: Does the RD51.1-4N-200-R-NN-FW include a mains filter?
A: An integrated mains filter comes standard on this drive controller.
