Product Description:

The DM 30K 5311-D is a servo drive module produced by Bosch Rexroth Indramat within the DM Servo Drives series. It is intended to energize and regulate a single rotary or linear axis in automated machinery, providing closed-loop velocity and position control through integrated power electronics and signal conditioning during normal machine operation. By combining power conversion with motion functions in one unit, it simplifies installation in production lines that require accurate positioning of workpieces, tooling, or handling equipment.

A 24 V control supply draws only 1.03 A, so the drive's logic section can be supported by standard power supply rails. The controller operates in Motion Control mode and includes a one-axis positioning function that accepts setpoints through 24 V control signals. Internally, the DC link operates at a non-regulated maximum of 715 VDC and is maintained at a regulated level of 670 VDC when the braking chopper and line converter are active. Current capability depends on carrier frequency: the open-loop peak reaches 29 Arms at 4 kHz switching and 22 Arms at 8 kHz, allowing a choice between dynamic response and acoustic performance. Feedback is obtained through a resolver interface with 12-bit angular resolution, allowing tight speed control without the complexity of optical encoders in routine industrial use.

The drive has a maximum power loss of 156 W, so cabinet airflow or external heat sinking must remove this heat during operation. Continuous output derates by 0.35 A/K at 4 kHz and by 0.24 A/K at 8 kHz when ambient temperature rises above the nominal limit, so enclosure cooling directly affects usable current. The module housing is only 75 mm wide, and the unit weighs 6.7 kg, which helps conserve panel space in dense multi-axis racks and supports installation in standard control cabinets. The narrow housing also leaves more room for wiring channels and adjacent modules inside the enclosure.