RD52.1-4B-007-L-NN-FW

The Bosch Rexroth Indramat RD52.1-4B-007-L-NN-FW from the RD 500 Drive Controllers series is a high-performance AC drive converter designed for demanding industrial applications. In a single compact converter with a built-in brake chopper, it delivers a rated power of 7.5 kW and operates on a nominal connecting voltage of 3 x AC 380-480 V. Thermal management is handled via forced air cooling, ensuring stable operation under continuous load. This drive’s rugged construction and modular design make it an ideal choice for hoists, conveyors, and packing lines where reliability is paramount.

The RD52.1-4B-007-L-NN-FW incorporates radio interference suppression filters to minimize harmonics fed back into the supply and is immune to noise in compliance with EN 50082-2. Its overload capability of 200% for 0.5 seconds and 170% for 1 second allows short bursts of extra torque without derating. With a pulse frequency of 4 kHz at both 380-480 V and 200-230 V inputs, the drive delivers precise motor control across a wide speed range. A brake chopper is integrated, providing efficient energy dissipation during deceleration and enhancing safety.

Commissioning is simplified through a removable user panel with parameter copy function, a clear 4-line graphical display, and peer-to-peer drive coupling for rapid communication. For advanced setup and monitoring, the drive supports both RS-232 and RS-485 interfaces and is compatible with PC-based RDWin software. Optional functions such as standby power, starting lockout, and filter current feedback can be ordered to tailor the RD52.1-4B-007-L-NN-FW to specific application needs, ensuring both flexibility and scalability in modern automation systems.