Product Description:

The DM 15K 6311-D is a servo drive module from Bosch Rexroth Indramat in the DM Servo Drives series. Designed for industrial automation, it supplies controlled three-phase power to one motor while reading resolver feedback and executing internal positioning functions. The module ties into higher-level controllers over PROFIBUS-DP, allowing coordinated motion with other axes. By combining power electronics, axis control, and communication inside a compact enclosure, it streamlines installation in packaging, material-handling, and light assembly equipment without external amplifiers or breakout boards.

The common DC bus feeds the drive at 670 VDC, giving a wide voltage margin for energy recovered during deceleration. At that link, the inverter can supply a momentary motor current of 18 Aeff, while continuous RMS current is limited to 11 Aeff to keep silicon temperature within design limits. A carrier of 8 kHz controls the output waveform, balancing response speed against switching losses that sum to 121 W under full load. The housing is rated IP20, so live parts are finger-safe, but the unit must be installed in a protected cabinet. Cooling is provided by forced air drawn through integral heat sinks, and a separate 24 V input draws 0.89 A for logic power. Resolver feedback with 12-bit resolution closes the loop, and climate class 3K3 limits acceptable ambient humidity and dust exposure.

Cabinet planning is simplified by the drive’s 6.0 kg mass and 50 mm module width, allowing dense mounting on standard backplanes. Reliable operation is specified up to 1000 m installation height, and current derating is required above that altitude. Front-accessible terminals carry resolver, DC link, and PROFIBUS signals, which helps reduce cable runs inside the enclosure. Maintaining clear airflow paths around the heat sinks helps preserve the rated continuous and peak currents during indexing or velocity profiles.