DMA 140D 8001-D

The Bosch Rexroth Indramat DMA 140D 8001-D from the DMA Servo Drive Modules series is a robust three-phase servo drive module featuring air-cooled operation and a compact 200 mm module width. This DMA 140D 8001-D unit incorporates an analog 10-bit U/f characteristic interface (with optional 12-bit or 16-bit resolution) for precise motor control. It is designed around a 670 VDC regulated and 715 VDC unregulated DC-link voltage topology, and supports dual 4 kHz and 8 kHz switching frequencies for optimized performance. The drive converts its DC link into a 400 V output voltage to power asynchronous and servo motors with high efficiency.

In demanding applications, the DMA 140D 8001-D delivers up to 42 A maximum overload current and 87 A maximum continuous current at the 4 kHz switching rate, while drawing 1.58 A from a 24 VDC auxiliary supply. Thermal management is critical: the device incurs a 700 W maximum power loss and must be mounted inside an enclosure with a minimum IP54 protection rating equipped with clean air filters. The module itself is certified to IP20 as per EN 60 529, resists shocks up to 15 g, and withstands vibrations from 2 to 150 Hz without performance degradation.

Engineers should note the 3K3 climatic category and maintain ambient temperatures between 0 °C and 45 °C to ensure reliable semiconductor operation. Rated for elevations up to 1 000 m, it can function at altitudes up to 3 000 m with a gradual reduction in rated output. With its scalable resolution interface, dual-frequency switching, and stringent protection ratings, the DMA 140D 8001-D offers flexible integration into industrial drives, robotics, and high-precision automation systems.