RD52.1-4B-075-W-V1-FW Bosch Rexroth Indramat
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MPN: R911201267
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The Bosch Rexroth Indramat RD52.1-4B-075-W-V1-FW is a drive controller from the RD 500 Drive Controllers series, offering a rated power of 75 kW with a voltage range of 380 to 480 V and a tolerance of ±10%. This first generation controller uses liquid cooling and features a built-in brake chopper and integrated mains filter. It supports field oriented vector control and runs on an external 24 V stand-by power supply.
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Product Description:
The RD52.1-4B-075-W-V1-FW is manufactured by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. Designed for cabinet installation, this device conditions incoming three-phase power and produces variable output for AC motors used in automated material handling, packaging, and process equipment. Its role in industrial automation is to translate motion commands from a PLC into precise motor voltage and frequency so that speed, torque, and positioning are maintained under changing load conditions. This allows the controller to adjust motor operation smoothly during starts, speed changes, and varying process demand inside automated lines.
On the power side, the device is rated for up to 75 kW of mechanical output and accepts an input voltage range of 380 to 480 V. Connection is through a 3 x AC converter front end, allowing the unit to rectify and modulate all three phases simultaneously. The permissible supply variation is held within ±10 %, so normal line fluctuations do not disturb motor control. To move thermal energy away from the semiconductor stack, the housing is fitted for liquid cooling, a technique that supports continuous full-load operation without excessive airflow. Together, these characteristics let the controller drive large pumps, extruders, or hoists with stable performance and consistent output across normal plant voltage changes.
Dynamic functions are handled by a built-in brake chopper that dissipates regenerated energy during rapid deceleration, while field-oriented vector control algorithms keep current aligned with the motor’s magnetic field for high torque response at low speed. An integrated mains filter suppresses conducted emissions, reducing the need for external RFI hardware. For control electronics, the unit can draw 24 V standby power from an external source, allowing parameter access when the main bus is off. This model belongs to design generation 1, and its application package is supplied separately so the drive can be matched to the intended machine task.
Frequently Asked Questions about RD52.1-4B-075-W-V1-FW:
Q: Does the RD52.1-4B-075-W-V1-FW include a brake chopper?
A: The RD52.1-4B-075-W-V1-FW is equipped with a built-in brake chopper for enhanced braking control.
Q: What control method is used in the RD52.1-4B-075-W-V1-FW drive controller?
A: This drive controller uses field oriented vector control for precise motor regulation.
Q: What type of cooling does the RD52.1-4B-075-W-V1-FW require?
A: The RD52.1-4B-075-W-V1-FW operates with liquid cooling for efficient heat management.
Q: What is the rated power output of the RD52.1-4B-075-W-V1-FW?
A: The rated power output for this model is 75 kW.
Q: What supply voltage range does the RD52.1-4B-075-W-V1-FW support?
A: The RD52.1-4B-075-W-V1-FW supports a voltage range between 380 and 480 V.
