Product Description

Bosch Rexroth is a manufacturer driven by innovation, and this is seen in the array of solutions it provides for the drive and motion industry. The REFU 500 series by Bosch Rexroth is an innovative three-phase current drive system used globally for a wide variety of synchronous and induction motors. Its hardware and software have a modular design which allows them to be easily customized for specific drive tasks. The RD 51 Voltage frequency control drives provide an economical drive solution for applications that do not require servo characteristics, such as pumps, ventilators, moving gears, centrifuges, extruders, agitators, and conveyor belts.

The RD51.1-4B-007-D-NN-FW is a converter in the RD 51 series that functions on the frequency control basis, which means that the set value determines the converter output frequency. It is equipped with various interfaces for operating, observing, and parameterizing the drive system. Some of these interfaces include Interbus S remote bus, Profibus DP slave, CAN open, and Peer-to-Peer coupling with fiber-optic cable. It is equipped with integrated radio interference suppression filters and line reactors to reduce the harmonics fed back into the line supply. The converter completely fulfills the EMC Directive regarding noise immunity and noise emission according to the EMC Product Standard for electric drives.

The rated motor output of the RD51.1-4B-007-D-NN-FW is 7.5kW, and it utilizes a supply voltage between 380V and 480V with a +/-10% allowance. Its maximum installation height is 1,000m above the mean sea level. The protection class of this converter is IP 20 according to EN 60529, which means that it is touch-proof and resistant to dust and objects greater than 12mm in size.