RD51.1-5N-001-L-D1-FW Bosch Rexroth Indramat
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MPN: R911200348
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The Bosch Rexroth Indramat RD51.1-5N-001-L-D1-FW is a drive controller from the RD 500 Drive Controllers series that operates on a 3-phase AC supply and a voltage range of 500 V. It features U/f curve control, forced air cooling, and includes a NAMUR terminal strip with 24 V standby power supplied externally.
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Product Description:
The RD51.1-5N-001-L-D1-FW is an AC inverter module produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It converts fixed line power into a variable-frequency output so conventional induction motors can follow programmed speed references. Installed in centralized automation cabinets, it supports material-handling lines, mixers, and ventilation drives that benefit from controlled acceleration and deceleration. This operating method allows connected motors to start more smoothly and run at speeds that better match the process demand.
This variant is supplied as a 3 x AC converter and is rated for the 500 V line range, giving it compatibility with common 480 V industrial distribution systems without an input transformer. Motor flux is regulated by U/f curve control, which keeps the voltage-to-frequency ratio constant so magnetic conditions remain stable across the speed range. That control method is commonly used for induction-motor applications that require dependable speed regulation with straightforward setup. Internal heat is removed by forced air cooling, with the fan assembly pulling cabinet air across the heat sink to support continuous current when the controller is mounted near adjacent equipment. The unit is Design Generation 1, which identifies the first electrical revision.
The control terminals follow NAMUR conventions, and a NAMUR terminal strip on the front board simplifies digital and analog signal wiring. An external 24 V standby power supply keeps the control logic active during line outages so diagnostic access remains available. This arrangement allows the control section to remain accessible even when the main power path is not active. Because the unit is without a built-in brake chopper, rapid-stop functions require an external resistor or a separate chopper module. The required firmware is ordered separately, allowing the drive to be matched to the needed fieldbus and parameter set.
Frequently Asked Questions about RD51.1-5N-001-L-D1-FW:
Q: What type of cooling does the RD51.1-5N-001-L-D1-FW drive controller use?
A: The RD51.1-5N-001-L-D1-FW is equipped with forced air cooling for thermal management during operation.
Q: What control method is implemented in the RD51.1-5N-001-L-D1-FW?
A: This drive controller features U/f curve control for motor regulation.
Q: What is the supply voltage range for the RD51.1-5N-001-L-D1-FW?
A: It operates with a supply voltage range of 500 V AC in a three-phase configuration.
Q: Does the RD51.1-5N-001-L-D1-FW have a built-in brake chopper?
A: The model does not include a built-in brake chopper as standard.
Q: Which design generation does the RD51.1-5N-001-L-D1-FW belong to?
A: The RD51.1-5N-001-L-D1-FW belongs to Design Generation 1 of the RD 500 Drive Controllers series.
