RD51.1-4B-030-L-CF-FW Bosch Rexroth Indramat
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MPN: R911203637
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The Bosch Rexroth Indramat RD51.1-4B-030-L-CF-FW is a drive controller from the RD 500 Drive Controllers series. It offers a rated power of 30 kW and operates at a voltage range of 380 to 480 V. This controller features a built-in brake chopper, integrated mains filter, and uses forced air cooling.
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Product Description:
The RD51.1-4B-030-L-CF-FW drive controller is produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It converts fixed-frequency plant power into variable output for induction motors used in conveyors, pumps, and general material-handling lines. In routine operation, the controller adjusts output frequency and voltage so motor speed can follow process requirements instead of remaining fixed at line frequency. The unit is intended for closed cabinet installation where forced ventilation is already available, and it links the line supply with motor leads while incorporating filter and braking functions to reduce the need for external accessories.
Rated output power reaches 30 kW, which suits motors with the same nominal power under typical operating conditions. A supply window of 380 to 480 V three-phase AC is accepted, and an input tolerance of ±10 % allows operation during moderate mains fluctuations common in industrial environments. The internal control platform uses U/f curve control, meaning voltage is adjusted in proportion to frequency for stable motor flux when sensor feedback is not used. A built-in brake chopper dissipates regenerated energy into an external resistor, helping prevent DC-link overvoltage during rapid deceleration or overhauling loads. This control approach is well suited to pump, fan, and conveyor duties that need dependable variable-speed operation with a straightforward control method.
Power quality is improved by an integrated mains filter, which attenuates conducted emissions and helps the cabinet meet EMC limits without extra line components. Thermal management relies on forced air cooling, and mounted fans direct airflow across the heat sink so the device can sustain continuous output in compact enclosures. The supply concept is a Converter 3 x AC, which rectifies incoming phases into a stabilized DC bus for the inverter section before generating the motor output waveform. The selectable function set is listed as Combination C1 + F1, which provides the available application features used by this controller configuration.
Frequently Asked Questions about RD51.1-4B-030-L-CF-FW:
Q: Does the RD51.1-4B-030-L-CF-FW drive controller feature a brake chopper?
A: The RD51.1-4B-030-L-CF-FW includes a built-in brake chopper for energy dissipation during braking operations.
Q: What type of control method does the RD51.1-4B-030-L-CF-FW utilize?
A: This drive controller uses U/f curve control to regulate motor speed in various industrial applications.
Q: What cooling method is employed in the RD51.1-4B-030-L-CF-FW?
A: A forced air cooling system is used to maintain the optimal operating temperature of this drive controller.
Q: What is the rated power output of the RD51.1-4B-030-L-CF-FW?
A: The RD51.1-4B-030-L-CF-FW provides a rated power output of 30 kW.
Q: What supply voltage range is supported by the RD51.1-4B-030-L-CF-FW drive controller?
A: This unit is designed for operation with a 3-phase AC supply voltage in the range of 380 to 480 V.
