DMA 030A 3301-D Bosch Rexroth Indramat
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MPN: 1070085616
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The Bosch Rexroth Indramat DMA 030A 3301-D is a 3-phase servo drive module from the DMA Servo Drive Modules series, designed for synchronous and asynchronous motors. It delivers a rated current of 12 Arms at 8 kHz and uses air cooling through the backplane. The drive supports a resolver encoder interface and operates at a regulated DC link voltage of 670 VDC.
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Product Description:
The DMA 030A 3301-D is a servo drive module produced by Bosch Rexroth Indramat and supplied within the DMA Servo Drive Modules series. It serves as a drive channel for three-phase synchronous and asynchronous motors by converting DC bus energy into controlled stator currents for speed and torque regulation. The unit is intended for multi-axis automation cabinets and communicates with upstream supply sections through a backplane. This arrangement makes it suitable for material handling lines, packaging equipment, and other general motion systems that require coordinated axis control. Because the power stage is packaged as a module rather than a standalone inverter, it fits systems where several axes share common supply hardware and centralized cabinet wiring.
Internal electronics draw a control supply of 1.23 A at 24 V, so auxiliary power capacity must account for the module and related control circuits. Thermal management relies on air cooling on the backplane, so cabinet airflow must carry heat away without external heat sinks. The drive operates from a non-regulated DC link of 715 VDC, and internal regulation reduces this to 670 VDC under nominal load conditions. Position loops accept resolver feedback, which provides rotor angle information for stable commutation and low-speed control. Resolver input also lets the control section maintain accurate rotor alignment when the motor is running slowly or holding position at standstill.
During short-term overload events, the open-loop channel can supply up to 32 Arms, which supports temporary acceleration demand on heavier axes. Cabinet thermal design must also account for a continuous power loss of 180 W so internal temperature stays within the permitted operating range. The device is classified as a 3-phase module for synchronous and asynchronous motors. In closed-loop operation, it continuously delivers 12 Arms at an 8 kHz carrier frequency, which suits many mid-power machine axes. The higher overload capability supports brief torque peaks during acceleration or load changes, while continuous operation depends on maintaining the required cooling airflow and duty cycle.
Frequently Asked Questions about DMA 030A 3301-D:
Q: What is the rated current for the DMA 030A 3301-D at 8 kHz in closed-loop mode?
A: The DMA 030A 3301-D servo drive module offers a rated current of 12 Arms at 8 kHz under closed-loop operation.
Q: What type of encoder interface is provided on the DMA 030A 3301-D?
A: This unit has a resolver-type encoder interface for feedback.
Q: What cooling method does the DMA 030A 3301-D utilize?
A: The servo drive module uses air cooling over the backplane to manage heat.
Q: What is the maximum current the DMA 030A 3301-D can deliver in open-loop mode at 8 kHz?
A: The maximum current output at 8 kHz in open-loop operation is 32 Arms.
Q: How much 24 V supply current does the DMA 030A 3301-D need?
A: The 24 V supply current required for this servo drive module is 1.23 A.
