RD52.1-4B-022-D-V1-FW Bosch Rexroth Indramat
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MPN: R911201493
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The Bosch Rexroth Indramat RD52.1-4B-022-D-V1-FW is a drive controller in the RD 500 Drive Controllers series and offers a rated power of 22 kW. This controller features a built-in brake chopper, integrated mains filter, and supports field oriented vector control. It is compatible with a supply voltage range of 380 to 480 V and uses a plug-through cooler for cooling.
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Product Description:
The RD52.1-4B-022-D-V1-FW belongs to the RD 500 Drive Controllers series manufactured by Bosch Rexroth Indramat. As a drive controller, it regulates induction or synchronous motors in automated machinery, providing closed-loop speed and torque control for material processing, packaging, and conveyor applications. It supports speed-regulated operation where consistent torque delivery and smooth acceleration are needed across varying process loads. This unit is part of design generation 1 of the platform. It is intended for use with a separately supplied firmware package that matches the control task of the machine.
The controller operates on an input range of 380 to 480 V, allowing installation on common industrial power systems without an autotransformer. Its nominal shaft output is rated at 22 kW, so it can be paired with medium-frame motors used in pumps or extruders. Motion is regulated by field-oriented vector control, which separates flux and torque to maintain stable response during load changes. Braking energy is dissipated internally through a built-in brake chopper, and external resistors can be added when regenerative peaks exceed the internal thermal limit. Heat from the semiconductor stack is removed by a plug-through cooler for units up to 110 kW, which supports rear-panel mounting and helps keep most of the thermal load outside the control enclosure.
An integrated mains filter reduces conducted emissions, helping the installation meet EMC requirements without additional line reactors. Control electronics remain active through 24 V standby power, so communication and parameter access stay available even when the main supply is locked out. This arrangement lets the drive maintain supervisory functions during brief supply interruptions and controlled shutdown states. Input tolerance is specified at ±10%, which helps the drive remain stable during normal plant voltage variation. The power section uses a 3 x AC converter topology that rectifies and inverts the incoming line to deliver adjustable output frequency and amplitude.
Frequently Asked Questions about RD52.1-4B-022-D-V1-FW:
Q: What is the rated power for the RD52.1-4B-022-D-V1-FW drive controller?
A: The RD52.1-4B-022-D-V1-FW is rated for 22 kW of output power.
Q: What type of cooling system does the RD52.1-4B-022-D-V1-FW use?
A: This model features a plug-through cooler, supporting effective cooling for units up to 110 kW.
Q: Is a brake chopper included in the RD52.1-4B-022-D-V1-FW drive controller?
A: A built-in brake chopper is included in the RD52.1-4B-022-D-V1-FW for energy dissipation during braking events.
Q: What is the supply voltage range for the RD52.1-4B-022-D-V1-FW controller?
A: The RD52.1-4B-022-D-V1-FW operates with a supply voltage range from 380 to 480 V AC, three phase.
Q: What control type is used in the RD52.1-4B-022-D-V1-FW drive controller?
A: Field oriented vector control is the standard control method for this drive model.
