KSM02.1B-071C-35N-M3-HP2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M3-HP2-ET-L3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining a synchronous motor and decentralized electronics in one housing, the unit provides compact axis control for packaging, handling, and assembly equipment. It accepts DC bus power and executes motion tasks at the installation point, reducing cabinet wiring. Within an automation cell, the drive functions as a self-contained actuator that receives network commands and delivers precise torque and position without external feedback converters.

The drive operates from a supply rail of DC 750 V, enabling connection to multi-axis DC buses. Command data reach the drive through Multi-Ethernet, allowing communication with EtherNet/IP, PROFINET, and EtherCAT controllers. Power, signal, and brake conductors share a single hybrid connector, which simplifies daisy-chain installation along modular machinery. The internal electronics dissipate heat through natural convection, and the absence of fans reduces maintenance in environments with airborne particles. Functional safety is provided by Safe Torque Off (STO), which removes energy from the motor windings when a stop channel opens. Rotor position is measured through a Hiperface interface with a capacitive sensor head that delivers 16 signal periods per revolution. The multi-turn absolute track retains position through power cycles. The unit is design version 1 and internal series code 2, while winding code 35 and motor length C establish the electromagnetic stack suited to basic duty cycles.

The motor has a shaft with a keyway and a shaft seal that helps prevent lubricant leakage in washdown areas. An electrically released brake rated at DC 24 V secures the axis when power is off, supporting vertical loads without drift. Frame size 071 keeps rotor inertia moderate for responsive acceleration and deceleration. The standard design option and basic performance level are intended for auxiliary motion axes that require decentralized control without additional motor-mounted electronics.