DMA 45A 5311-D

The DMA 45A 5311-D drive module from Bosch Rexroth Indramat is a member of the DMA Servo Drive Modules series, designed as a three-phase inverter module for precise control of synchronous and asynchronous motors. Featuring a modular Servodyn-D inverter architecture, it operates on a dc-link voltage of 670V and delivers an output voltage of 400V. This module supports switching frequencies of 4 kHz and 8 kHz with continuous currents of 23 A and 15 A respectively, making it ideal for applications requiring accurate speed, current, and position regulation. The primary function of the DMA 45A 5311-D is to monitor and adjust motor performance in real time, ensuring smooth and reliable operation in industrial environments.

In terms of detailed technical specifications, the module draws a 24 VDC current input of 1.32 A to power its control electronics, including a VeCon chip–driven processor board with 24 V control inputs. Its ambient operating temperature range extends from 0 to +45 °C without any reduction in rated data, ensuring stable performance under typical plant conditions. The compact design measures 50 mm in width and weighs 7.3 kg, facilitating easy integration into standard enclosures. The integrated power supply module provides the required 670/715 VDC dc-link voltage to the inverter, while the triple-phase design supports seamless three-phase motor operation at 400 V output.

Additional features include dual built-in fans for efficient thermal management and a resolver encoder interface for indirect position detection, enhancing overall precision. An optional one-axis positioning function is available for specialized motion control tasks. With an IP20 protection rating, the module must be installed within a suitable switch cabinet of matching protection class to safeguard against physical interference and ensure compliance. It dissipates 220 W within the enclosure and conforms to climatic category 3K3, demonstrating robust durability. The DMA 45A 5311-D offers industrial users reliable, high-performance drive control, ensuring efficient, long-term operation in automation systems.