KSM01.2B-071C-25N-M1-HP0-SE-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM01.2B-071C-25N-M1-HP0-SE-NN-D7-NN-FW belongs to the KSM Motor Integrated Servo Drives series manufactured by Bosch Rexroth Indramat. As a motor-integrated servo drive, it combines a servomotor, power electronics, and a fieldbus interface in one housing, allowing motion axes to be mounted directly on machinery without a separate cabinet-mounted drive. This arrangement shortens encoder, power, and feedback wiring in distributed automation systems. The integrated design also provides closed-loop control for packaging stations, pick-and-place gantries, and light material-handling equipment.

This model operates from a bus link rated at 750 V DC, allowing it to share a common high-energy supply with other drives on the line. Motion commands and diagnostic data are exchanged over the real-time SERCOS 2 (RS-422) network, whose deterministic communication supports synchronized multi-axis positioning. Rotor position is captured through a Hiperface interface, and the optical scanning system provides 128 signal periods per revolution. The multi-turn absolute encoder tracks shaft position across multiple complete rotations, allowing position information to remain available after a power interruption. These feedback capabilities help the controller regulate position, speed, and torque during coordinated machine cycles. The unit uses the basic performance level for standard decentralized motion tasks.

Power, signal, and communication channels are routed through a single hybrid connector, simplifying cable routing and providing keyed alignment during installation. Heat is removed by natural convection, so adequate free airflow must be maintained around the housing. A shaft seal protects the shaft opening, while a shaft with a keyway transfers torque through a positive mechanical connection to a compatible coupling. The motor has a frame size of 071 and a length code of C, providing moderate housing depth for installations with limited mounting space. The unit is supplied without a holding brake, so an external brake or another holding method is required when a stationary load must remain secured after drive power is removed. It uses the standard design option and does not include integrated safety functions, so any required machine safety functions must be provided separately.