KSM02.1B-071C-35N-M1-HG0-ET-SD-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HG0-ET-SD-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining power electronics, feedback processing, and the 071-frame servo motor in one housing, the unit supports decentralized axis control on packaging lines, material-handling stages, and assembly stations. Its compact layout removes the need for separate cabinet-mounted drives and simplifies wiring in distributed automation cells.

This drive uses a hybrid connector that carries DC power, control signals, and safety wiring through a single pluggable interface, reducing harness complexity. Heat generated by the embedded inverter is dissipated through natural convection, so no additional cooling fan is required, provided that adequate airflow is available around the housing. Rotor position is captured by a Hiperface optical encoder that provides 128 signal periods per mechanical revolution. The multi-turn absolute scanning system records the shaft position across 4,096 revolutions without external batteries, allowing the controller to recognize the axis position after power is restored.

For networked machines, the master interface supports Multi-Ethernet protocols, allowing the axis to join Sercos III, EtherNet/IP, PROFINET, or EtherCAT topologies without hardware changes. The power stage operates from a regulated 750 V DC link, allowing a direct connection to compatible IndraDrive supply modules. Functional safety is provided by Safe Motion with SBC, which supports certified safe-stop and safely limited speed functions through the fieldbus. Mechanical output is delivered through a plain shaft with a shaft seal, which helps protect the motor against contaminant ingress. The C-length stator and winding code 35 provide continuous torque for mid-range loads. The unit has a basic performance level and design version 1, and it is supplied without a holding brake to keep rotor inertia low in Series 2 machines.