Product Description:

The RD52.1-7N-075-W-V1-FW is manufactured by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It is a high-power inverter that links a shared DC bus to induction or synchronous motors and governs torque through current-controlled pulse patterns. In automated packaging lines or material-handling stations, the unit closes the control loop between the programmable logic controller and the motor, translating speed references into precise electrical output. It also records operating data that can be used for supervisory diagnostics and status monitoring.

The drive can deliver up to 75 kW of mechanical power and accepts a DC link in the range of 530 to 670 V. This operating window helps the controller remain stable through moderate supply variation without immediate derating. Its supply topology is classified as Inverter DC, so only a rectified intermediate circuit is needed on the line side. Vector regulation relies on field-oriented vector control, which supports full torque production at low speed and quick response to changing load conditions. Heat generated by the IGBT stack is removed through liquid cooling, which suits dense cabinet layouts and reduces the amount of airborne debris drawn through the enclosure.

The control section includes provisions for braking, standby operation, and software selection. The drive operates without a built-in brake chopper, so regenerative energy must be handled by external hardware when braking demand is present. Control electronics remain active through a 24 V standby power input, which allows communication and parameter access while the main bus is de-energized. The note firmware must be ordered as a separate subposition indicates that the software package is supplied independently. The hardware belongs to design generation 1, which identifies the first generation of this RD 500 configuration.