RD51.1-5B-030-L-D1-FW Bosch Rexroth Indramat
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MPN: R911200457
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The Bosch Rexroth Indramat RD51.1-5B-030-L-D1-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 30 kW and a voltage range of 500 V. It features U/f curve control, a built-in brake chopper, and uses forced air cooling. This device is equipped with a NAMUR terminal strip and supports external 24 V stand-by power.
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Product Description:
Bosch Rexroth Indramat manufactures the RD51.1-5B-030-L-D1-FW within the RD 500 Drive Controllers series. The unit is a three-phase converter that supplies adjustable voltage and frequency to standard induction motors, allowing precise speed and torque regulation throughout automated material-handling lines, pump stations, and process drives. By converting fixed-frequency plant power into a variable output, it forms the central regulating element between the supply line and the mechanical load, giving PLCs and fieldbus nodes a way to command motion profiles without mechanical gear changes.
A built-in brake chopper is integrated so regenerated energy created during rapid deceleration is routed to an external resistor instead of returning to the supply, preventing DC bus overvoltage. Motor flux is set through U/f curve control, which keeps the ratio between stator voltage and frequency constant to maintain motor flux at low speeds. The controller handles continuous mechanical demand up to 30 kW, matching typical 45 hp motor frames in conveyor or fan applications. Incoming power is accepted through a converter with three-phase AC input, meaning the supply is fully rectified and inverted internally. The DC link and output transistors are dimensioned for a nominal line of 500 V, allowing connection to 460 V industrial networks with headroom for voltage tolerance. Thermal stability relies on forced air cooling; an internal fan draws cabinet air across the heat sink so full current can be delivered without derating when ambient temperature remains within the drive’s permitted range.
Field wiring is simplified by a NAMUR terminal strip that groups control signals on a removable block. Emergency operation can be maintained through a 24 V standby power input that energizes the control logic when the main bus is absent. The unit is part of design generation 1, which identifies the controller revision used for matching parameter sets with connected motors, feedback devices, and higher-level controllers.
Frequently Asked Questions about RD51.1-5B-030-L-D1-FW:
Q: Does the RD51.1-5B-030-L-D1-FW have an integrated brake chopper?
A: The RD51.1-5B-030-L-D1-FW features a built-in brake chopper for braking operations.
Q: What is the rated power capacity of the RD51.1-5B-030-L-D1-FW?
A: This controller supports a rated power output of 30 kW.
Q: What supply voltage does the RD51.1-5B-030-L-D1-FW require?
A: The unit operates with a supply voltage range of 500 V.
Q: How is the RD51.1-5B-030-L-D1-FW drive controller cooled?
A: The RD51.1-5B-030-L-D1-FW employs forced air cooling to maintain optimal operating temperatures.
Q: What control method is used on the RD51.1-5B-030-L-D1-FW drive controller?
A: This model offers U/f curve control as its control type.
