RD52.1-4B-022-L-FV-FW Bosch Rexroth Indramat
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MPN: R911201332
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The Bosch Rexroth Indramat RD52.1-4B-022-L-FV-FW is a drive controller from the RD 500 Drive Controllers series. It features a rated power of 22 kW and supports a voltage range of 380 to 480 V with ±10% tolerance. The unit has a built-in brake chopper and uses field oriented vector control, with forced air cooling and an integrated mains filter.
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Product Description:
The RD52.1-4B-022-L-FV-FW drive controller is produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. It serves as the power-processing element in industrial automation by converting three-phase mains energy into regulated motor voltage and current. By coordinating torque and speed loops, the device enables precise motion control in conveyors, packaging lines, and other machinery that depends on stable, configurable motor performance. This makes it suitable for applications that require repeatable acceleration and smooth speed regulation during changing load conditions.
Its electrical input window spans 380 to 480 V, and the unit tolerates supply fluctuations of ±10 %, allowing operation on common industrial grids without additional stabilizers. The converter section is rated for 22 kW, so connected induction or synchronous motors can draw that level of continuous power under nominal conditions. Control algorithms use field-oriented vector control, producing rapid torque response by aligning stator currents with rotor flux. Thermal management relies on forced air cooling, and internal fans move heat away from power semiconductors to maintain component temperatures during heavy duty cycles. This control and cooling arrangement supports stable operation during repeated speed changes and variable process loads.
A built-in brake chopper dissipates regenerated energy directly into a resistor, preventing DC-bus overvoltage during rapid deceleration. The line side is protected by an integrated mains filter, which attenuates conducted emissions and helps the installation meet EMC limits. For supply topology, the device uses a converter 3 x AC configuration that matches the three-phase networks found in production plants. Control electronics remain active when the main link is off because 24 V standby power feeds the logic section, which supports fieldbus supervision and quick restart sequences after safety stops. Design generation 1 is included, and current-filter feedback terminals at U6, V6, and W6 are incorporated without changing external dimensions.
Frequently Asked Questions about RD52.1-4B-022-L-FV-FW:
Q: Does the RD52.1-4B-022-L-FV-FW include a brake chopper?
A: This model has a built-in brake chopper for dynamic braking needs.
Q: What control method does the RD52.1-4B-022-L-FV-FW drive utilize?
A: The RD52.1-4B-022-L-FV-FW uses field oriented vector control for precise motor management.
Q: What type of cooling does the RD52.1-4B-022-L-FV-FW drive controller use?
A: Forced air cooling is used in this drive to regulate operating temperature.
Q: What is the rated output power of the RD52.1-4B-022-L-FV-FW drive?
A: The RD52.1-4B-022-L-FV-FW is rated for 22 kW output power.
Q: What voltage range is supported by the RD52.1-4B-022-L-FV-FW drive controller?
A: This unit supports a supply voltage range from 380 to 480 V AC with a tolerance of ±10%.
