DMA 085B 9301-D

The Bosch Rexroth Indramat DMA 085B 9301-D drive module is a key member of the DMA Servo Drive Modules series, engineered for integration into the Servodyn-D fully digital inverter system. This three-phase module features robust backplane module mechanics and a compact width of 100 mm, delivering high-performance control for both synchronous and asynchronous motors. With a maximum switching frequency of 85 kHz, the DMA 085B 9301-D provides the rapid response and dynamic behavior required in precision motion control applications.

Delving into the technical specifications, the DMA 085B 9301-D operates on a nominal input voltage of 670 V and supplies an output voltage of 400 V, with a 24 VDC current input rated at 1.35 A. Thermal management is handled via an air cooling with backplane mechanics scheme, ensuring efficient heat dissipation under continuous load. Communication is facilitated through multiple interfaces: CANopen and CANrho for networked drive control, alongside a resolver encoder interface for closed-loop feedback. All signals are routed over a fully digital CAN bus on a dedicated PC-board, providing precise regulation of position, current, and speed via integrated setpoint modules.

The DMA 085B 9301-D is designed for modular inverter environments, enabling seamless stacking of axis and supply modules within the Servodyn-D architecture. Its resolver encoder interface ensures direct compatibility with motors equipped with built-in resolvers, enhancing position and speed accuracy with sinusoidal current control. The combination of efficient air cooling, digital control electronics, and standardized module mechanics results in a durable, easy-to-maintain solution for industrial automation. Users benefit from improved system scalability, reduced downtime, and high repeatability, making the DMA 085B 9301-D an ideal choice for demanding manufacturing and processing applications.