KSM02.1B-061C-61N-M3-HP2-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M3-HP2-ET-L3-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining drive electronics with a 061 frame-size synchronous motor, the unit reduces the need for separate cabinet-mounted drive components and shortens feedback wiring in factory automation systems. It executes axis-positioning commands directly on the machine and supports distributed installation through its communication and output-coupling design. This arrangement is suitable for packaging equipment, handling systems, and other machines that use coordinated decentralized axes.

The power stage is supplied by a DC 750 V bus, allowing the unit to share a common direct-current link with other compatible Indramat inverters. Power, feedback, and I/O lines converge in a single hybrid connector, which simplifies cable routing and field installation. Thermal losses are removed solely by natural convection, so the required mounting clearances must be maintained to provide adequate airflow around the housing. Rotor position reaches the drive through a Hiperface interface, and the capacitive sensor provides 16 signal periods per mechanical revolution for interpolation by the controller. The encoder uses capacitive sensing and stores multi-turn absolute position, allowing the controller to retain axis-position information across multiple shaft revolutions. The motor uses winding code 61 to provide the electrical characteristics required by the power stage and commutation controls of the KSM Series 2 platform.

The holding mechanism is an electrically released brake that engages whenever the 24 V control line is removed. Its coil operates from a DC 24 V supply, allowing the brake to secure the shaft when control power is unavailable. Functional safety is provided by Safe Torque Off (STO), which prevents torque-producing energy from reaching the motor without applying the holding brake. Mechanical output is delivered through a shaft with a keyway, providing positive engagement with a compatible coupling or gearbox. A shaft seal limits the entry of contaminants around the output interface. Control data are transferred over Multi-Ethernet, which supports communication protocols such as EtherNet/IP, PROFINET, and SERCOS III. The unit has design version 1, a basic performance level, and motor length C.