DMA 085B 7101-D

The Bosch Rexroth Indramat DMA 085B 7101-D from the DMA Servo Drive Modules series is a robust three-phase drive module engineered for seamless integration into industrial switch cabinets. It operates with an Input Voltage of 670V and delivers a stabilized Output Voltage of 400V, while the 24 VDC current input of 1.35 A powers on-board controllers and logic. Designed for both synchronous and asynchronous motors, this backplane module employs an efficient air-cooling mechanism with dust-filtered intake under its IP54 rated housing. The direct link to the inverter supports regulated 670VDC and non-regulated 715VDC rails, ensuring stable performance under dynamic loads.

Reliability is assured through multiple communication interfaces including SERCOS, PROFIBUS-DP, CANrho, and CANopen setpoint links, enabling high-speed data exchange and synchronization. With a compact width of 100 mm and a module mass of 11.5 kg, installation density is maximized while maintaining ease of handling. Its front-accessible air-cleaning filters reduce maintenance downtime, and the module’s IP20 classification on the internal backplane complements the external IP54 shell. Thermal management is optimized with a derating scheme of 1.25 A/K above +45 °C, ensuring safe operation up to +55 °C.

This module performs reliably at elevations up to 1000 meters above sea level, with a derating policy extending functionality up to 3000 meters. The integrated water-cooling option operates between 10 °C and 40 °C with a neutral pH of 7-8.5 and minimal 5 ml circulation volume, preventing condensation and algae formation. Backed by a global one-year warranty, the DMA 085B 7101-D offers a versatile, high-performance solution for modern automation needs.