KSM01.2B-071C-35N-S1-HG0-SE-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM01.2B-071C-35N-S1-HG0-SE-NN-D7-NN-FW is manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet motor, power electronics, and a fieldbus interface in one housing, allowing decentralized motion control directly on the machine frame. This motor-integrated servo drive is used in packaging lines, pick-and-place modules, and conveyor segments where its compact construction reduces cabinet space and simplifies wiring. Placing the control electronics near the driven axis also shortens the required motor connections and reduces the amount of equipment installed in a central control cabinet.

Incoming energy is supplied through a 750 V DC common bus, enabling shared power and regenerative braking across multiple axes. Power, feedback, and network conductors are routed through a single hybrid connector, minimizing cable bulk and simplifying assembly. Heat is removed by natural convection, so no cooling fans are required when the specified mounting clearances are maintained. The motor uses winding code 35, which is matched to the stator of motor size 071. The unit has motor length C, design version 2, and the standard design option. Its basic performance level supports common positioning and speed-control tasks without adding unnecessary control functions.

Axis supervision and drive coordination are handled over SERCOS 2 (RS-422), providing deterministic real-time communication with higher-level controls. Rotor position is reported through a Hiperface optical encoder that generates 128 signal periods per revolution. Its single-turn format supplies absolute position within one mechanical rotation, providing an immediate position reference after startup. The optical sensing method provides high-resolution feedback without relying on magnetic position detection. A shaft seal protects the output interface, while the plain shaft supports direct connection to a suitable clamping coupling, gearbox, or pulley. The motor does not have a holding brake, so an external holding device or drive-applied torque is required when a stationary load must be retained. Integrated safety technology is not included, so any required safe-torque-off or speed-monitoring functions must be provided elsewhere in the machine control system. The product belongs to Series 1 and uses a standard mechanical arrangement for decentralized servo applications.