RD52.1-7N-018-L-NN-FW

The Bosch Rexroth Indramat RD52.1-7N-018-L-NN-FW from the RD 500 Drive Controllers series combines robust construction with high-performance features in a compact, modular inverter design. This inverter without a built-in brake chopper operates on a nominal connecting voltage of DC 530-670 V and delivers a rated power of 18.5 kW via a three-phase DC supply. A forced air cooling mechanism maintains optimal temperatures during steady operation, ensuring continuous performance at ambient temperatures up to 50 °C. Weighing just 6.5 kg, the unit's chassis is tailored for closed-housing installation with a bottom air inlet and top outlet to streamline cabinet airflow.

The inverter supports dual pulse commands at 4 kHz and 8 kHz switching frequencies, enabling both precision control and high-power transitions. It features a 30 kVA peak power rating for 60 seconds at 4 kHz, guaranteeing dynamic overload capacity for demanding applications. The user-facing X1 connector includes eight DC-link and line-supply poles, facilitating simplified wiring of solenoid valves, relays, and contactors through its direct-coil connection. A dedicated temperature sensor and relay output afford reliable protection and thermal monitoring, enhancing system safety. The drive's modular architecture and size class A footprint accelerate installation and lower maintenance time.

Operation is streamlined through two serial interfaces on the logic and control board, paired with an integrated user panel featuring multiple keys and a four-line graphical display. Dedicated Start and Stop keys, plus two selectable modes for service/setup and normal operation, offer straightforward commissioning and troubleshooting. Parameter sets can be stored in the operator panel, enabling rapid recommissioning after replacement and safeguarding configuration data. Bosch Rexroth Indramat backs the RD52.1-7N-018-L-NN-FW with one-year backup support, ensuring reliable supply chain and technical assistance for critical drive systems.