RD51.1-4B-004-D-NN-FW
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MPN: R911201286
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The Bosch Rexroth Indramat RD51.1-4B-004-D-NN-FW belongs to the RD 500 Drive Controllers series and features vector control for precise operation. It has a rated output power of 4 kW and operates with a 400 V 3-phase input voltage. The drive uses air cooling and comes with a standard IP20/IP21 enclosure type.
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Product Description:
The RD51.1‑4B‑004‑D‑NN‑FW is a frequency controller by Bosch Rexroth designed for adaptable motion regulation. It functions as a voltage-to-frequency converter that manages AC motor speed and torque using U/f control. This enables consistent motor performance, ensuring smooth start‑stop cycles, coordinated multi-axis movements and scalable integration under unified control architecture. This makes it well suited for small to mid-size industrial machinery and light servo applications where reliable, precise motor regulation is vital.
The RD51.1-4B-004-D-NN-FW is compatible with both synchronous and induction motors, allowing it to support a broad spectrum of industrial motion control setups. It can manage permanent magnet motors requiring precise rotor position control as well as standard squirrel cage induction motors typically used for variable torque applications. This versatility enables users to standardize on a single drive platform across different machine types, reducing engineering complexity. This controller supports high voltage power setups with a broad input tolerance that makes it adaptable to a wide range of power setups.
For thermal efficiency, the RD51.1-4B-004-D-NN-FW is equipped with a plug-through cooler that is designed to transfer heat from the inverter’s internal components to an external heat sink or cooling plate. This design physically separates heat-generating elements from the control electronics, protecting sensitive components and extending overall system life. The plug-through configuration simplifies integration in tightly packed control panels, making it ideal for space-restricted environments. This controller comes with a built-in brake chopper, which enables controlled dissipation of regenerative energy produced during motor deceleration. It converts the kinetic energy of the load back into electrical energy, ensuring energy-efficient performance and controlled braking. This helps to enhance safety in applications with frequent start-stop cycles or rapid deceleration requirements.
Frequently Asked Questions about RD51.1-4B-004-D-NN-FW:
Q: What types of motors are compatible with the RD51.1-4B-004-D-NN-FW?
A: The RD51.1-4B-004-D-NN-FW is compatible with both synchronous and induction motors. This allows for greater flexibility in industrial applications using different drive technologies.
Q: What supply voltage range does the RD51.1-4B-004-D-NN-FW support?
A: The RD51.1-4B-004-D-NN-FW supports a three-phase AC voltage range of 380 to 480 V ±10%. This enables reliable operation across varying industrial power conditions.
Q: What type of cooling system does the RD51.1-4B-004-D-NN-FW use?
A: The RD51.1-4B-004-D-NN-FW uses a plug-through cooler, which transfers heat outside the control cabinet for enhanced thermal stability.
Q: Does the RD51.1-4B-004-D-NN-FW include a brake chopper?
A: Yes, the RD51.1-4B-004-D-NN-FW features a built-in brake chopper. It safely manages regenerative energy during braking to prevent DC bus overvoltage.
Q: Can the RD51.1-4B-004-D-NN-FW be used in space-constrained installations?
A: The RD51.1-4B-004-D-NN-FW is well-suited for tight spaces due to its plug-through cooling system. This allows heat to dissipate externally, reducing enclosure size requirements.
