Product Description

The Bosch Rexroth RD52.1-4B-055-D-NN-FW is a universal three phase drive controller. Its performance specifications depend on ambient conditions and pulse frequency. At 4 kilohertz pulse, the rated motor output is 55 kilowatts, the output frequency range is 0 to 250 Hertz, rated current is 99 Amps, the peak current for 60 seconds is 129 Amps, the peak current for 1 second is 168 Amps, the peak current for 0.5 seconds is 198 Amps, the rated output is 65 kVA and the peak output for 60 seconds is 85 kVA. At 8 kilohertz pulse, the rated motor output is 45 kilowatts, the output frequency range is 0 to 500 Hertz, rated current is 82 Amps, the peak current for 60 seconds is 107 Amps, the peak current for 1 second is 139 Amps, the peak current for 0.5 seconds is 164 Amps, the rated output is 54 kVA and the peak output for 70 seconds is 85 kVA.

The converter on the RD52.1-4B-055-D-NN-FW is designed for 380 to 480 Volts AC input. The converter includes a built-in brake chopper. The continuous and peak power ratings of the brake chopper are 33 kilowatts and 130 kilowatts. The rated power loss of the controller is 1.9 kilowatts. The controller comes with a plug through cooler and weighs 49 kilograms. The optional user panel, the RDwin PC user interface and several other interfaces are available to operate, visualize and parameterize RD 500 units. RS-232 and RS-485 serial interfaces are installed as standard on the logic and control board of the controller. In addition, the optional interface cards including SERCOS, Profibus, Interbus and CAN bus are available for setting parameters.