Product Description:

The DMA 30A 5311-D is a servo drive module manufactured by Bosch Rexroth Indramat for the DMA Servo Drive Modules series. The device functions as a three-phase power stage that energizes synchronous and asynchronous motors in automated machinery, translating low-level control commands into regulated armature currents. Within an industrial cell, it links motor windings to the plant’s DC bus and coordinates torque generation, enabling closed-loop motion in packaging, material handling, and processing lines.

A key functional element is its one-axis positioning capability, meaning the module can execute point-to-point moves for a single mechanical axis without relying on an external motion controller. Thermal management is handled by air cooling through the backplane, so airflow drawn through the rear of the cabinet removes heat directly from the fins attached to the power electronics. Feedback from the motor is processed through a resolver interface, allowing rotor angle detection even at standstill. Command and diagnostic information enter through 24 V control signals, a voltage level commonly present in machine I/O racks. The housing occupies only 50 mm module width, permitting multiple axes to be lined up side by side in a constrained panel.

As a three-phase module, the unit delivers symmetrical currents to each stator phase, reducing torque ripple in both synchronous and asynchronous machines. As part of the Servodyn-D series, it uses a standardized backplane connector and the same cooling air paths as related drive cards. Shared mechanical and airflow arrangements help adjacent modules fit the same rack format and keep cabinet layout consistent across multiple axes. This card is the standard variant, and its parameter memory can be adjusted through the front-mounted serial interface without requiring optional add-on boards. The layout also keeps signal and power connections grouped at the module face and rear interface, which supports orderly panel wiring.