DMA 140D 3301-D Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: 1070077623
The Bosch Rexroth Indramat DMA 140D 3301-D is a 3-phase servo drive module designed for synchronous and asynchronous motors as part of the DMA Servo Drive Modules series. It features a maximum continuous current of 106 Arms at 4 kHz, a resolver encoder interface, and supports both analog setpoint interface with 12 bit resolution. The module has a mass of 19.3 kg and uses air cooling via the backplane.
Internal Product Review
The DMA 140D 3301-D is a 3-phase servo drive module for synchronous and asynchronous motors with backplane air cooling. Operation on a 670 VDC regulated DC link with 84 Arms continuous current at 8 kHz gives the module a strong performance profile for demanding motion systems. Resolver feedback with 12-bit position resolution supports stable motor control, making the DMA 140D 3301-D a very capable choice for precision drive applications.
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Product Description:
The DMA 140D 3301-D is a drive module built by Bosch Rexroth Indramat within the DMA Servo Drive Modules series. It is a three-phase module intended for synchronous and asynchronous motors, providing regulated DC link power and current shaping for motion axes in automated machinery. By converting a shared DC bus into controlled phase currents, the unit forms the core of high-performance position and speed loops in industrial automation cells. The shared bus arrangement also supports coordinated motor control across compact multi-axis systems.
The drive’s logic circuitry is energized from a 24 V control supply with a current draw of 1.58 A, isolating the control electronics from the power stage during mains outages. The switching devices operate at a frequency of 8 kHz, so thermal and acoustic performance are balanced. When the carrier is kept at this rate, the module can deliver 84 Arms continuously, and short bursts can reach 117 Arms. A DC link of 670 V in regulated operation or 715 V in non-regulated operation feeds the inverter bridge, influencing motor back-EMF and regeneration limits. Overall heat dissipation is capped at 700 W, a value that guides cabinet ventilation sizing.
At the lower 4 kHz carrier rate, the continuous current rating climbs to 106 Arms, while overload peaks of 141 Arms are available for brief periods. Above 45 °C, the output is reduced by 1.75 A per kelvin to protect the semiconductors, and this linear derating continues to the 55 °C limit. Internal losses are removed by backplane air cooling, so the rear heat sink connects to cabinet airflow and no front-mounted fans are required. The module stands 521 mm high, 200 mm wide, and weighs 19.3 kg, which supports dense installations. Motion feedback is accepted through a resolver interface, and command values arrive on an analog setpoint channel. The final interpolated position has a resolution of 12 bits, which is suitable for coarse positioning stages.
