DMA 030A 7301-D Bosch Rexroth Indramat
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MPN: 1070079650
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The Bosch Rexroth Indramat DMA 030A 7301-D is a 3-phase servo drive module from the DMA Servo Drive Modules series with a mass of 7.3 kilograms and 50 mm module width. It offers a regulated DC link voltage of 670 VDC and supports CANrho communication interface and air cooling via the backplane. The unit features an encoder interface compatible with STG or MTG and delivers a maximum current of 35 Arms at 4 kHz.
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Product Description:
The DMA 030A 7301-D is a servo drive module manufactured by Bosch Rexroth Indramat for the DMA Servo Drive Modules series. It is a three-phase power stage that conditions a shared DC bus for synchronous and asynchronous motors used in industrial handling, packaging, and machining cells, delivering commanded current and voltage profiles to each axis under drive control. Encoder feedback ports accept STG (20-bit) or MTG inputs with 32-bit, 4096-revolution absolute resolution, so the module can close position loops without external interpolators.
The control electronics draw only 1.23 A from the 24 V standby supply, minimizing cabinet auxiliary load. Field networking is handled through the CANrho interface, allowing coordinated motion commands and diagnostics across multiple axes. Thermal management is based on backplane air cooling; heat sinks vent into the rack channel, so no separate fan module is required. The DC link is maintained at 670 VDC in regulated mode, with an unregulated ceiling of 715 VDC, giving margin for braking energy without overvoltage trips. Continuous load capability is temperature dependent; at 4 kHz PWM, the current limit derates by 0.46 A/K above the reference point, while maximum open-loop output reaches 35 Arms. Equivalent 8 kHz values are 0.35 A/K and 32 Arms, allowing a balance between switching losses and dynamic bandwidth.
Worst-case dissipation of 180 W occurs during high reactive power cycles, and this figure helps determine enclosure ventilation needs. The housing is only 50 mm wide, enabling high axis density on the Rexroth backplane. It weighs 7.3 kg, which keeps the module manageable during installation. Rated currents are 8.9/18 Arms at 4 kHz and 5.1/12 Arms at 8 kHz for open- and closed-loop modes respectively. The plug-in format fits the backplane without requiring separate cable entry space between neighboring drives.
Frequently Asked Questions about DMA 030A 7301-D:
Q: What is the 24 V power demand for the DMA 030A 7301-D drive module?
A: The DMA 030A 7301-D operates with a 24 V power demand of 1.23 A for its control electronics.
Q: What encoder interfaces and resolutions are available on the DMA 030A 7301-D?
A: This module provides both STG and MTG encoder interfaces, supporting 20-bit resolution for STG and 32 bits with 4096 revolutions absolute for MTG.
Q: How is the DMA 030A 7301-D servo drive module cooled?
A: The DMA 030A 7301-D uses air cooling via the backplane to manage heat dissipation during operation.
Q: Which communication interface is featured on the DMA 030A 7301-D servo drive?
A: Its CANrho communication interface enables integration with compatible control systems and devices.
Q: What is the supported DC link voltage for the DMA 030A 7301-D module?
A: The DC link voltage for this module is 670 VDC regulated and 715 VDC non-regulated.
