DMA 045A 6111-D Bosch Rexroth Indramat
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MPN: 1070085636
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The Bosch Rexroth Indramat DMA 045A 6111-D is part of the DMA Servo Drive Modules series and supports PROFIBUS-DP interface for communication. This standard variant three-phase servo drive module has a mass of 7.3 kg, uses air cooling via backplane, and provides a maximum current of 51 Arms at 4 kHz. It features one axis positioning, STG or MTG encoder interfaces, and supports a DC link voltage of 670 VDC regulated or 715 VDC non-regulated.
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Product Description:
Bosch Rexroth Indramat manufactures the DMA 045A 6111-D as part of the DMA Servo Drive Modules series. This three-phase unit delivers regulated power and closed-loop control for synchronous and asynchronous motors in machine tools, packaging lines, and material-handling cells. It includes an integrated one-axis positioning function, so basic motion sequences can run without an external controller. The module mounts on a backplane within a multi-axis drive rack, which lets several axes share power distribution and cooling capacity in the same enclosure.
At startup, the control electronics consume 1.32 A from the machine's 24 V auxiliary bus, which must remain stable for reliable gate drive and diagnostics. The main intermediate circuit operates at 670 VDC, and it can rise to 715 VDC when the upstream supply is unregulated. Heat is removed by air drawn across the backplane, and the continuous output current is reduced by 0.65 A/K between 45 °C and 55 °C at 4 kHz or by 0.45 A/K at 8 kHz. For short overloads, the inverter can deliver up to 51 Arms at 4 kHz and 44 Arms at 8 kHz before protective limits intervene. Under maximum electrical stress, internal losses reach 220 W, so cabinet airflow must be sized to carry that heat away.
Mechanical integration is helped by a mass of only 7.3 kg, so the rack stays within typical rail load limits even when several axes are installed. The housing is 504 mm high, 288 mm deep, and 50 mm wide, which allows dense module spacing while preserving the shared cooling channel. Command and diagnostic data are exchanged over PROFIBUS-DP, while STG or MTG encoder ports accept 20-bit or 32-bit absolute position feedback. With positioning handled inside the drive, the bus mainly carries target values and status words, which reduces network traffic and simplifies PLC programming. The standard variant keeps the same derating behavior across all version levels.
Frequently Asked Questions about DMA 045A 6111-D:
Q: Which encoder interfaces are available on the DMA 045A 6111-D module?
A: The DMA 045A 6111-D supports an encoder interface with either STG or MTG connection types.
Q: How many axis positioning functions does the DMA 045A 6111-D offer?
A: This drive module provides one axis positioning as an additional function.
Q: What DC link voltages does the DMA 045A 6111-D module support?
A: The drive accepts a regulated DC link voltage of 670 VDC and a non-regulated voltage of 715 VDC.
Q: What cooling method is implemented in the DMA 045A 6111-D servo drive?
A: The DMA 045A 6111-D uses air cooling via the backplane to dissipate heat.
Q: What communication interface does the DMA 045A 6111-D module include?
A: A PROFIBUS-DP interface is provided for communication with other devices.
