RD52.1-4B-011-L-F1-FW Bosch Rexroth Indramat
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MPN: R911200668
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The Bosch Rexroth Indramat RD52.1-4B-011-L-F1-FW is a drive controller in the RD 500 Drive Controllers series. It features field oriented vector control and a built-in brake chopper, with an operating voltage range of 380 to 480 volts. The unit supports forced air cooling and utilizes an integrated mains filter.
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Product Description:
The RD52.1-4B-011-L-F1-FW is a drive controller manufactured by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. Intended for installation in multi-axis panels, it conditions incoming mains power, processes encoder data, and delivers commanded currents required for stable speed and torque regulation in automated production lines, conveying systems, and forming equipment. Its digital interface allows coordination with higher-level PLCs so motion sequences remain synchronized with upstream sensors and actuators.
It operates from an industrial feeder rated at 380 to 480 V, and the power stage tolerates deviations within ±10%, so brief brownouts or overvoltage conditions do not interrupt service. Motor flux is calculated through field-oriented vector control, enabling rapid torque rise and precise low-speed positioning even under variable load. Thermal limits are managed by forced air cooling; internal fans drive airflow across the heat sink fins, permitting cabinet temperatures up to the controller’s rated maximum without derating. Deceleration energy is processed by a built-in brake chopper that routes regenerated DC-link voltage to an external resistor, preventing bus surges when motors stop abruptly.
Upstream line quality is improved by an integrated mains filter, which reduces conducted EMI and safeguards adjacent equipment. Diagnostic transparency is enhanced through current filter feedback signals on terminals U6, V6, and W6, allowing control software to monitor phase symmetry and harmonic content in real time. Because the hardware is a three-phase AC converter, multiple drives can share a common DC bus and braking resistor bank, simplifying system wiring. The unit is built on the design generation 1 platform, which supports the controller’s power and signal handling functions.
Frequently Asked Questions about RD52.1-4B-011-L-F1-FW:
Q: Does the RD52.1-4B-011-L-F1-FW include a brake chopper?
A: A built-in brake chopper is included in this drive controller, allowing direct connection without additional external hardware.
Q: What control method does the RD52.1-4B-011-L-F1-FW use?
A: This model uses field oriented vector control for precise motor control and dynamic performance.
Q: How is the RD52.1-4B-011-L-F1-FW cooled?
A: Forced air cooling is utilized in this drive controller to maintain optimal operating temperatures.
Q: What voltage range does the RD52.1-4B-011-L-F1-FW support?
A: The RD52.1-4B-011-L-F1-FW supports an input voltage range from 380 to 480 V.
Q: Is a mains filter integrated in the RD52.1-4B-011-L-F1-FW drive controller?
A: An integrated mains filter is included with this device, reducing electrical noise and interference from the supply.
