KSM02.1B-076C-35N-S1-HG0-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-076C-35N-S1-HG0-ET-S3-D7-NN-FW is produced by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. This product combines a synchronous motor, power electronics, and a fieldbus interface in one housing so that machine builders can mount it directly on the frame and reduce cabinet wiring. Designed for decentralized motion axes, the unit supplies rotational power to end effectors while reporting its status to higher-level controllers. It supports precise position, speed, and torque regulation in automated production equipment.

The drive accepts a supply of DC 750 V, a bus level that allows several axes to share regenerative energy without separate power conditioners. Power, control, and brake conductors reach the housing through a single hybrid connector, reducing installation errors compared with discrete plugs. Heat generated by the electronics is removed solely by natural convection, so no fans are required and enclosure maintenance is minimized. Network traffic is handled by a Multi-Ethernet master interface that can be set to EtherNet/IP, EtherCAT, or PROFINET, allowing the same hardware to accommodate different plant standards. Position feedback provides 128 signal periods per motor revolution, providing sufficient granularity for servo-loop tuning.

Feedback is produced by a Hiperface interface that reads an optical scale on the rotor. The code wheel provides single-turn absolute position over one mechanical revolution. Functional safety is implemented through Safe Motion without SBC, enabling controlled stopping and monitored standstill without additional relays. Torque is transferred through a plain shaft, and a shaft seal protects the interior against splash water and dust. The drive uses Design Version 1 and the Standard design option, along with winding code 35 and a Basic performance level in Series 2. Its 076 frame code and motor length C provide a compact package that operates without a holding brake, relying instead on controller torque to maintain its position.