KSM02.1B-071C-35N-M1-HG2-ET-NN-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HG2-ET-NN-D7-TO-FW is manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. This compact unit combines a permanent-magnet synchronous motor, inverter electronics, and fieldbus interfaces in one housing, so it mounts directly on the machine frame while eliminating the need for a separate drive cabinet. By delivering closed-loop torque and position control at the point of motion, it simplifies wiring and shortens response times in automated packaging, material-handling, and assembly systems.

This drive accepts a bus supply of DC 750 V, allowing it to share a common DC link with other KSM axes. Internal heat is removed through natural convection, so installation requires unobstructed airflow rather than auxiliary fans. Power, signal, and safety lines are combined in a single hybrid connector, which reduces cable runs and simplifies connection. Rotor position is transmitted over the Hiperface interface, enabling high-resolution feedback for servo loops. An electrically released brake engages whenever the control voltage of DC 24 V is removed, holding the load during a power loss or emergency stop.

The motor has a frame code of 071 and an active stack length of C, providing a balanced ratio of torque to inertia for medium-duty axes. The stator windings use code 35, matching the integrated inverter's current limits and dynamic requirements. The optical feedback system delivers 128 signal periods per revolution and stores absolute multi-turn position data, so homing cycles are unnecessary after shutdown. A plain shaft with a shaft seal helps prevent lubricant from escaping and contaminants from entering the housing. The unit has a basic performance level and does not include integrated safety technology. Its Multi-Ethernet communication interface permits direct connections to EtherNet/IP, PROFINET, or EtherCAT controllers.