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

The KSM02.1B-071C-24N-S1-HG0-ET-SD-D7-NN-FW is manufactured by Bosch Rexroth Indramat and belongs to the KSM Motor Integrated Servo Drives series. It combines a servo motor and drive electronics in one housing, reducing the amount of panel wiring required for a motion axis. This integrated arrangement is intended for distributed industrial automation systems where available installation space and cable routing are limited. The drive regulates motor torque, speed, and position locally while exchanging commands and operating data with the machine controller.

The unit receives power from a DC 750 V bus, allowing it to share a common DC supply with compatible drive equipment. A Hybrid Connector carries the DC supply, network communication, and feedback connections through a single plug. Heat is removed through natural convection, so unobstructed airflow around the housing is required for proper cooling. Position feedback is supplied by a Hiperface optical encoder that produces 128 signal periods per revolution, providing fine angular measurement for closed-loop control. The encoder operates in single-turn mode, which preserves absolute position information within one mechanical revolution. Control traffic is transmitted through Multi-Ethernet protocols, allowing connection through EtherNet/IP, PROFINET, or EtherCAT without an additional option card. Winding code 24 matches the motor's electrical characteristics to the high-voltage power bus.

The motor uses a 071 frame with a C-length housing, providing moderate rotor inertia for general-purpose machinery. Its output interface is a plain shaft with a shaft seal, which helps prevent grease loss and limits the entry of coolant or contaminants along the shaft. The motor does not include a holding brake, so an external clamping device is required when an unpowered axis must support a vertical load. Integrated Safe Motion (with SBC) provides STO, SS1, and safe brake control functions within the servo system. The product has a Basic performance level and design version 1. It follows the Standard design and belongs to series 2. Its mounting footprint, drilling pattern, and passive cooling arrangement support installation within compatible KSM machine layouts.