DMA 015A 1101-D Bosch Rexroth Indramat
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MPN: 1070085608
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The Bosch Rexroth Indramat DMA 015A 1101-D is a 3-phase module designed for synchronous and asynchronous motors, and is part of the DMA Servo Drive Modules series. This drive features a rated current of 13 Arms at 4 kHz, supports a single axis positioning function, and uses SERCOS for the setpoint interface. It has a mass of 7.3 kilograms, utilizes air cooling through the backplane, and operates with a DC link voltage range of 670 VDC regulated to 715 VDC non-regulated.
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Product Description:
The DMA 015A 1101-D is a servo drive unit manufactured by Bosch Rexroth Indramat for the DMA Servo Drive Modules series. Configured as a three-phase module for synchronous or asynchronous motors, it mounts on an RMA/DM 30 backplane and exchanges motion commands with controllers through a SERCOS setpoint link. Within an automation cell, this module supplies the regulated power and closed-loop control required for one-axis positioning. It serves as the interface between the cabinet DC bus and the machine feedback encoder, helping the motor follow commanded speed and position changes. Because the control loop is closed inside the module, commanded motion can be corrected quickly when load conditions change.
Under nominal conditions, the current controller delivers 13 Arms at 4 kHz, while short overloads are handled with up to 18 Arms. The module uses a switching frequency of 8 kHz, a value chosen to balance motor acoustics and switching losses. Continuous operation dissipates 185 W of heat, so cabinet airflow must remove that thermal load during operation. The DC link is 670 VDC when the mains supply is regulated, and it can rise to 715 VDC in non-regulated conditions to support high-speed motor windings. Above 45 °C, the output derates by 0.35 A per Kelvin, so thermal headroom decreases as ambient temperature approaches the upper operating limit. Stable current regulation is important for consistent torque delivery during acceleration, holding, and deceleration.
The housing occupies only 50 mm of rack width and weighs 7.3 kg, permitting dense multi-axis stacks without excessive load on cabinet rails. Logic electronics draw 1.14 A from the 24 V service supply, and a rear fan moves backplane air for cooling. Position feedback reaches 20 bits via the standard encoder interface, allowing precise interpolation during axis moves commanded over SERCOS. This feedback path supports smooth speed regulation and accurate positioning during repeated motion cycles. Its compact format is useful in cabinets where several axes share one power structure and must be arranged close together without blocking adjacent modules.
Frequently Asked Questions about DMA 015A 1101-D:
Q: What setpoint interface does the DMA 015A 1101-D servo drive use?
A: The DMA 015A 1101-D is equipped with a SERCOS setpoint interface for communication.
Q: What is the rated output current of the DMA 015A 1101-D at 4 kHz in closed loop mode?
A: This module provides a rated current of 13 Arms at a 4 kHz closed loop.
Q: What cooling method is used in the DMA 015A 1101-D drive module?
A: The DMA 015A 1101-D uses backplane air cooling and includes one fan for heat management.
Q: What type of encoder interface is offered by the DMA 015A 1101-D?
A: The encoder interface on this model is a standard interface.
Q: What is the single-turn resolution capability of the DMA 015A 1101-D?
A: This drive module supports single-turn resolution up to 20 bits for precise positioning.
