RD51.1-5N-001-L-D1-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911200348
Ask for AvailabilityThe 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.
Internal Product Review
The RD51.1-5N-001-L-D1-FW is a Bosch Rexroth Indramat drive controller built for converter 3 x AC input and 500 V operation. U/f curve control supports stable speed regulation, while forced air cooling helps maintain consistent thermal performance under continuous industrial loading. The NAMUR terminal strip with external 24 V stand-by power adds practical integration value, making the unit a strong choice for streamlined drive control.
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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.
