RD52.1-4B-030-D-NN-FW Bosch Rexroth Indramat
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MPN: R911201001
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The Bosch Rexroth Indramat RD52.1-4B-030-D-NN-FW is a drive controller from the RD 500 Drive Controllers series. It supports a rated power of 30 kW and operates with a voltage range of 380 to 480 V. This model features field oriented vector control, an integrated mains filter, and a built-in brake chopper.
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Product Description:
Bosch Rexroth Indramat produced the RD52.1-4B-030-D-NN-FW for its RD 500 Drive Controllers series. The unit is a drive controller that interfaces between a three-phase mains supply and an asynchronous or synchronous motor, converting and modulating power so automated lines, conveyors, and machine tools receive precise speed and torque commands. By combining current sensing, vector algorithms, and braking circuits, the controller provides centralized regulation within control cabinets and supports efficient motor operation in industrial automation environments.
The controller delivers a continuous output of 30 kW, which is the maximum power it can supply to a connected motor under rated thermal conditions. Its input network operates within 380 to 480 V three-phase lines, and the electronics tolerate ±10 % deviation, allowing stable performance on grids with moderate voltage swings. Configured as a 3 x AC converter, the unit rectifies three-phase input power and inverts it to a variable-frequency, variable-amplitude output. A built-in brake chopper dissipates regenerated energy during fast deceleration, so external resistor modules are unnecessary for most mid-range loads. The unit is not equipped with a functions menu.
Speed and torque are controlled through field-oriented vector control, giving precise flux alignment and dynamic response for both induction and permanent-magnet motors. Thermal management is handled by a plug-through cooler for outputs up to 110 kW, which places the heat sink outside the cabinet so losses are removed without recirculating warm air across other electronics. An integrated mains filter reduces conducted electromagnetic interference and helps the controller meet plant EMC limits. This also helps reduce interference on shared supply lines and nearby equipment. The unit is in generation 1, and its control software is supplied separately to match the application.
Frequently Asked Questions about RD52.1-4B-030-D-NN-FW:
Q: Does the RD52.1-4B-030-D-NN-FW have an integrated brake chopper?
A: The RD52.1-4B-030-D-NN-FW features a built-in brake chopper for deceleration control.
Q: What control type does the RD52.1-4B-030-D-NN-FW utilize?
A: This model uses field oriented vector control for precise motor management.
Q: What cooling method is used on the RD52.1-4B-030-D-NN-FW drive controller?
A: Cooling is handled by a plug-through cooler suitable for installations up to 110 kW.
Q: What is the rated power output of the RD52.1-4B-030-D-NN-FW?
A: The RD52.1-4B-030-D-NN-FW provides a rated power output of 30 kW.
Q: What is the supply voltage range for the RD52.1-4B-030-D-NN-FW?
A: This drive controller operates on a voltage range of 380 to 480 V AC power supply.
