RD52.1-4B-045-L-F1-FW Bosch Rexroth Indramat
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MPN: R911200391
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The Bosch Rexroth Indramat RD52.1-4B-045-L-F1-FW is a drive controller from the RD 500 Drive Controllers series, designed with field oriented vector control and forced air cooling. It features a built-in brake chopper, an integrated mains filter, and operates at a rated power of 45 kW with a voltage range of 380 to 480 V using a 3-phase AC converter supply.
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Product Description:
The RD52.1-4B-045-L-F1-FW is a drive controller produced by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It regulates three-phase AC motors in automated production lines by matching commanded speed or torque to the mechanical load at the shaft. By converting constant mains power into a variable output waveform, the unit supports conveyor sections, packaging stations, and other motion axes. This type of control helps keep driven equipment moving smoothly when product flow or process resistance changes during operation. The unit is part of design generation 1, which sets its mechanical footprint and connector layout for early RD 500 cabinets.
The controller uses field-oriented vector control, a control method that separates flux and torque so motor response stays stable during rapid load changes. That control approach is useful where low-speed torque and consistent acceleration are needed from AC motors. Its input section is sized for a line voltage of 380 to 480 V, and an allowable supply variation of ±10 % helps prevent nuisance trips on weak feeders. The inverter stage is rated at 45 kW, delivering continuous output within its thermal limits. Energy enters through a three-phase AC converter front end that rectifies the incoming supply before the inverter section drives the motor. These electrical limits set the compatible motor, fuse, and cable range for the axis.
System protection and signal conditioning are handled internally. A built-in brake chopper dissipates regenerated energy during deceleration, which can reduce the need for external resistor assemblies on suitable axes. The chopper manages energy that returns from the motor during braking, which helps stabilize the DC bus on decelerating cycles. Heat produced by the power electronics is removed by forced-air cooling, so the enclosure needs a clear airflow path. Line-borne interference is reduced by the integrated mains filter, while current filter feedback (U6, V6, W6) improves the controller’s view of phase-current ripple during operation.
Frequently Asked Questions about RD52.1-4B-045-L-F1-FW:
Q: Does the RD52.1-4B-045-L-F1-FW drive controller have an integrated brake chopper?
A: The RD52.1-4B-045-L-F1-FW features a built-in brake chopper for optimal braking efficiency.
Q: What control type does the RD52.1-4B-045-L-F1-FW utilize?
A: This drive controller operates using field oriented vector control for precise motor management.
Q: What cooling method is used by the RD52.1-4B-045-L-F1-FW?
A: The RD52.1-4B-045-L-F1-FW is cooled using forced air cooling to maintain safe operating temperatures.
Q: What is the voltage range for the RD52.1-4B-045-L-F1-FW drive controller?
A: The voltage input range for this drive controller is 380 to 480 V AC, providing flexibility for various power systems.
Q: What is the rated power output of the RD52.1-4B-045-L-F1-FW drive controller?
A: This model supplies a rated power of 45 kW, supporting high-performance applications.
