Product Description:

The DMA 015A 1301-D is a three-phase drive module from Bosch Rexroth Indramat's DMA Servo Drive Modules series. Designed for synchronous and asynchronous motor control in automated machines, the unit supplies regulated armature energy, interprets speed or position feedback, and exchanges setpoints with higher-level motion controllers. The module is suitable for both motor classes, and it fits into a common backplane that uses air cooling for continuous duty in production lines. This modular format lets multiple axes share a cabinet structure and central power distribution without requiring separate standalone housings. It also supports field-oriented control algorithms in the associated power section, helping deliver repeatable axis behavior during speed regulation and positioning tasks.

At a switching frequency of 8 kHz, the drive delivers a closed-loop rated output of 8.5 Arms and can reach 14 Arms in open-loop operation. Thermal margin is set by a derating factor of 0.24 A/K, so each kelvin rise above the reference temperature reduces the available current. The internal DC link operates at 670 VDC when regenerated energy is present and 715 VDC under non-regenerative supply conditions, feeding the IGBT stage that dissipates up to 185 W of power. Cooling air is routed through the backplane to support the air-cooling design and maintain stable operation under continuous load. Overall dimensions are 50 mm wide, 288 mm deep, and 504 mm high, allowing dense cabinet arrangements where several drive modules must be installed side by side.

Setpoints arrive through the SERCOS interface, and the standard encoder channel processes resolver feedback with a resolution of 12 bits. Installation into the RMA/DM 30 backplane connects the module to the shared DC bus and supplies control power at 1.14 A from the 24 V rail. The drive weighs 7.3 kg, so panel mounting loads remain within standard limits even when multiple units are stacked. A resolver or incremental encoder can be connected without external adapters, which simplifies wiring and supports common feedback devices used on machine axes.