KSM02.1B-071C-24N-S1-HG0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-S1-HG0-ET-L3-D7-NN-FW is a motor-integrated servo drive from the Bosch Rexroth Indramat KSM Motor Integrated Servo Drives series. By combining a permanent-magnet synchronous motor with an embedded inverter, the unit provides decentralized axis control directly on machine frames. It is intended for compact handling modules, packaging stations, and other automation tasks where cabinet space is limited and wiring must be minimized. This integrated arrangement reduces the number of separate drive components installed inside the control cabinet.

The drive operates at a bus voltage of DC 750 V, allowing it to receive power from a shared intermediate circuit without an additional transformer. Power, feedback, and fieldbus conductors terminate at a single hybrid connector, simplifying daisy-chain installations and reducing separate cable runs. Thermal losses are dissipated through natural convection, allowing installation without fans or liquid cooling. Position feedback is generated by a Hiperface optical encoder that produces 128 signal periods per revolution and supports smooth velocity control at low speeds. The encoder uses single-turn optical scanning, which resists magnetic interference and provides absolute position information within each mechanical revolution. The motor has standard design option 1, winding code 24, and motor length C. Its plain shaft includes a shaft seal that helps prevent oil and contaminants from reaching the internal components when the motor is coupled to an external gear stage.

Functional connectivity is provided by Multi-Ethernet, enabling the axis to communicate through Sercos III, EtherNet/IP, or PROFINET with the appropriate protocol configuration. Integrated safety supports Safe Torque Off (STO), which disables the drive output stages without requiring external contactors. The housing has a size of 071 and uses the basic performance level assigned to internal series 2. The compact housing supports installation near the driven axis, reducing the distance between the motor and the connected machine components. The unit is supplied without a holding brake, so applications requiring shaft locking after power removal must use an external brake on the load side. The sealed shaft interface also supports installation where nearby gear stages or machine processes could expose the output area to oil or debris.