KSM01.2B-071C-24N-S1-HP0-SE-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM01.2B-071C-24N-S1-HP0-SE-NN-D7-NN-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. Combining a permanent-magnet synchronous motor and a compact digital controller in one housing, the unit installs directly on moving axes and reduces cabinet wiring and enclosure size. It is intended for distributed industrial automation where precise position control and decentralized power conversion improve machine modularity and simplify system setup.

Its power stage is supplied by a 750 V DC bus, and all power, signal, and communication lines are carried through a single hybrid connector to simplify installation. Heat is removed by natural convection, so the housing contains no fan and must be mounted with sufficient space for unrestricted airflow. Command data move over SERCOS 2 (RS-422), providing deterministic timing between multiple axes. Rotor position is detected through a Hiperface optical encoder that outputs 128 signal periods per mechanical revolution. The drive has motor size 071, length code C, and winding code 24, making it suitable for moderate-torque applications. It is supplied without a holding brake, so an external method must secure the load when motor torque is unavailable. A shaft with a keyway transmits torque to the load, while a shaft seal helps prevent dust and fluids from reaching internal components. The unit has design version 2 and uses the standard design option for Series 1.

The optical sensing element provides accurate rotor-position signals without relying on mechanical contacts. Its single-turn feedback structure supplies absolute position data within each mechanical revolution without the additional memory components used by multi-turn encoders. The unit has a Basic performance classification and does not include integrated safety technology or safety-rated shutdown paths. Conventional machine safety devices must provide any required protective stopping functions. The decentralized housing places the motor and drive electronics near the controlled axis, reducing long motor-cable runs and simplifying power distribution across modular machinery.