DMA 85B 1101-D

DMA 85B 1101-D, Bosch Rexroth Indramat, DMA Servo Drive Modules is a high-performance three-phase servo drive module from the Servodyn-D Series offering precise motion control. The compact housing measures 50 mm in width and installs in cabinets as shallow as 300 mm. Featuring a backplane-mounted air-cooling design, it ensures stable operation without external fans. Users are advised to observe the five-minute de-energization wait after mains disconnection and comply with ESD protection before servicing.

The module accepts a nominal Input Voltage of 670 V AC three-phase and regulates a DC link voltage of 675 VDC to drive outputs at 400 V AC. A built-in 32-bit signal processor executes digital current, speed, and position control with a resolver resolution of 12 bits for feedback precision. The unit draws 1.35 A from a 24 VDC power supply and delivers up to 86 ARMS output current at a switching frequency of 4 kHz. Real-time communications are managed over a SERCOS interface, while the integrated personality module provides two-channel redundant safety monitoring via RSU.

Designed for seamless integration, the DMA 85B 1101-D couples with both synchronous and asynchronous motors from any manufacturer, simplifying retrofit and new-build installations. Its internal air-cooling and compact footprint reduce cabinet complexity and improve reliability in harsh industrial environments. With CE certification, a one-year warranty, and worldwide shipping via FedEx, DHL, or UPS, this drive module delivers dependable performance for servo-driven automation systems.