KSM02.1B-071C-35N-M1-HG0-ET-S3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HG0-ET-S3-D7-TO-FW is manufactured by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. Intended for decentralized automation, this integrated unit combines a permanent-magnet motor with drive electronics to simplify wiring and free space inside control cabinets. When installed on linear or rotary axes, it delivers closed-loop speed and position control so that packaging, printing, and handling machines can execute repeatable motion profiles without an external servo amplifier.

Electrical power is supplied through a DC 750 V bus that feeds the internal inverter stage and removes the need for a separate AC mains connection at the axis. Power, feedback, and safety conductors pass through a single hybrid connector, streamlining installation. Heat generated by the electronics is dissipated through natural convection, permitting cabinet-free mounting in tight spaces. A Hiperface interface links the controller to an optical encoder that delivers 128 signal periods and provides multi-turn absolute feedback for high-resolution positioning. The motor has a size of 071, a length code of C, and a winding code of 35, which establish its torque capability and speed range within the KSM series. The unit is a Series 2 device with Version 1 hardware and a Basic performance level. A shaft seal helps keep contaminants away from the internal bearings.

The integrated electronics provide a Multi-Ethernet port that supports Sercos, EtherNet/IP, PROFINET, and EtherCAT without additional option cards. This connection carries real-time commands and operating data between the drive and the higher-level controller. Functional safety is provided by Safe Motion technology, which supports STO and SS1 monitoring without an SBC module. Because the drive is supplied without a holding brake, static load retention must be provided by the machine or through drive-generated torque. Motion is transferred through a plain shaft, allowing zero-backlash couplings to seat directly on the machined surface.