DMA 140D 7101-D

The Bosch Rexroth Indramat DMA 140D 7101-D is a robust module in the DMA Servo Drive Modules series, designed for precise control of both synchronous and asynchronous motors. As part of the Servodyn-D family, this module features an air-cooled three-phase design and a CANrho interface with a standard encoder connection, ensuring seamless integration with industrial automation systems. With a regulated DC link voltage of 670 VDC (unregulated 715 VDC), it delivers reliable power conditioning and drive functionality for demanding applications.

This module’s technical pedigree includes dual switching frequencies of 4 kHz and 8 kHz, allowing for optimized torque ripple and efficiency trade-offs. It is rated for a maximum continuous current of 87 A and a peak overload current of 42 A at 4 kHz switching, making it suitable for high-dynamic motion profiles. The input voltage is specified as 670 VDC with an Output Voltage of 400 V, and the 24 VDC current input draws 1.58 A for control electronics. Unique features such as selectable switching frequencies and regulated/unregulated DC link voltages set this module apart in precision drive tasks.

Designed for longevity and ease of maintenance, the DMA 140D 7101-D weighs 19.3 kg and occupies a 200 mm module width, with a power loss of 700 W in the switch cabinet. The unit carries an IP20 protection rating per EN 60 529 and must be mounted in an IP54-rated switch cabinet with dust filters at air inlets and outlets to guard against contaminants. It withstands shocks up to 15 g without functional disturbance and operates reliably between 0 to 45 °C, with altitude ratings up to 1,000 m (derated above 3,000 m). In industrial settings, these specifications translate to enhanced durability, consistent performance, and reduced downtime, making the DMA 140D 7101-D an ideal choice for demanding automation environments.