RD52.1-4B-007-L-NN-NN-NN-FW Bosch Rexroth Indramat
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MPN: R911289494
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The Bosch Rexroth Indramat RD52.1-4B-007-L-NN-NN-NN-FW is a drive controller from the RD 500 Drive Controllers series. It features a rated power of 7.5 kW and operates within a voltage range of 380 to 480 Volts with a ±10% tolerance. The controller is equipped with a built-in brake chopper and uses field oriented vector control, along with forced air cooling and an integrated mains filter.
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Product Description:
The RD52.1-4B-007-L-NN-NN-NN-FW is a drive controller manufactured by Bosch Rexroth Indramat and assigned to the RD 500 Drive Controllers series. It is intended to manage AC motors in production lines, presses, and material-handling equipment, translating reference commands from a PLC into precisely metered electrical power for the motor. By integrating energy dissipation and protective circuitry, the unit serves as the link between the plant’s low-voltage supply and the motion axis.
The controller accepts a three-phase input through a supply section configured as a 3 x AC converter, and it can operate within a voltage range of 380 to 480 V. To accommodate line variations, the device tolerates deviations of ±10 % without derating. Its inverter stage is rated for a continuous mechanical output of 7.5 kW, which suits medium-sized pumps, fans, or conveyor drives. Motor regulation is carried out through field-oriented vector control, which separately adjusts magnetizing flux and torque-producing flux so dynamic response remains linear across the speed range. Regenerative energy produced during deceleration is dissipated internally by a built-in brake chopper, reducing the need for an external resistor in many installations.
Thermal management relies on forced air cooling, and the internal fan draws cabinet air across heat sinks to keep semiconductor temperatures within acceptable limits. Electrical noise returned to the mains is reduced by an integrated mains filter, which helps simplify compliance with factory EMC requirements. The unit is part of design generation 1, so its interface layout and option slots match the base RD 500 mechanical footprint. The functions field is not equipped, so I/O, communication, or feedback modules can be selected separately to suit the machine architecture without changing the base hardware.
Frequently Asked Questions about RD52.1-4B-007-L-NN-NN-NN-FW:
Q: Does the RD52.1-4B-007-L-NN-NN-NN-FW have a brake chopper built in?
A: The RD52.1-4B-007-L-NN-NN-NN-FW drive controller includes a built-in brake chopper for effective braking operations.
Q: What control type is used in the RD52.1-4B-007-L-NN-NN-NN-FW drive controller?
A: This model utilizes field oriented vector control for precise motor control.
Q: What type of cooling is employed in the RD52.1-4B-007-L-NN-NN-NN-FW?
A: The RD52.1-4B-007-L-NN-NN-NN-FW is cooled using forced air cooling.
Q: What is the rated power of the RD52.1-4B-007-L-NN-NN-NN-FW model?
A: The rated power output is 7.5 kW for this drive controller.
Q: What voltage range does the RD52.1-4B-007-L-NN-NN-NN-FW support?
A: The voltage range for operation is from 380 to 480 V, allowing flexibility in industrial settings.
