KSM02.1B-076C-35N-M3-HP2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-076C-35N-M3-HP2-ET-L3-D7-NN-FW is a motor-integrated servo drive from the Bosch Rexroth Indramat KSM Motor Integrated Servo Drives series. This mechatronic unit combines a permanent-magnet servo motor with drive electronics, allowing distributed motion control without a separate cabinet-mounted amplifier. It is installed close to the load, which shortens wiring runs and reduces exposure to electromagnetic interference. This arrangement is advantageous for conveyors, pick-and-place axes, and small tooling stations in industrial automation.

The unit operates from a DC 750 V bus supplied by a central power supply module. A single hybrid connector carries DC power, control signals, brake leads, and Ethernet communication to minimize machine cabling. Heat produced by the power stage is removed through natural convection, so no fans or liquid lines are required. Rotor position is reported through a Hiperface interface that supports automatic motor parameter transfer and provides absolute feedback at power-up. The integrated brake is electrically released, and its 24 V coil clamps the shaft whenever control power is lost, securing vertical loads or indexing tables. A shaft seal blocks lubricant migration, while the keyed shaft provides positive torque transmission to couplings or pulleys.

Functional safety is provided by Safe Torque Off (STO), which disconnects the drive output stages without removing power from the DC bus. The master port supports Multi-Ethernet communication for compatibility with SERCOS III, EtherNet/IP, PROFINET, and EtherCAT networks. The feedback device uses a capacitive scanning method that resists magnetic fields and provides stable multi-turn position data. Its resolution of 16 signal periods per mechanical revolution supports precise velocity control at low speeds. The drive has the Basic performance level and a size 076 stator frame with length code C. It also uses winding code 35 to provide the torque and speed range associated with this second-generation, design version 1 platform.