DMA 045A 7301-D

The DMA 045A 7301-D, manufactured by Bosch Rexroth Indramat, is part of the DMA Servo Drive Modules family and delivers high-performance three-phase drive control for Servodyn-D inverters. This module employs closed-loop regulation of current, speed, and position to achieve precise motion control. With its modular mechanics and supply-friendly regeneration, the drive ensures optimized dynamics and synchronization across complex multi-axis systems. Featuring rugged construction and proven industrial interfaces, the DMA 045A 7301-D meets rigorous demands for positional accuracy and speed-setting range.

Detailed specifications underscore the module’s versatility and robustness. It accepts a 670 V DC input voltage and outputs a regulated 400 V three-phase supply, while a 670 V regulated DC-link and 715 V non-regulated link support high overload reserves. The unit draws 1.32 A from its 24 VDC control supply and delivers a peak drive current of 45 A at a 2 kHz switching frequency. Housed in a slim 50 mm width envelope, the air-cooling system—augmented by two cooling fans—maintains an optimal operating temperature. A CANrho command interface and resolver encoder connection provide deterministic communication, and its backplane module of type RMA/DM 45 simplifies integration. Rated IP20, the module is designed for switch-cabinet installation with an external IP54 enclosure for additional protection.

Engineered for seamless integration into industrial automation networks, the DMA 045A 7301-D provides reliable performance under challenging environmental conditions, including operation up to 1000 m ASL (derated to 3000 m ASL). Its low maximum power loss of 220 W under overload, combined with supply-friendly regenerative infeed, reduces heat management requirements and operational costs. Ideal for high-precision robotics, packaging lines, and multi-axis gantry systems, this drive module enhances uptime and simplifies maintenance with its modular design and standardized interfaces.