KSM02.1B-061C-35N-S3-HG2-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-S3-HG2-ET-NN-D7-NN-FW is produced by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. By locating the inverter, power stage, and control logic directly on the motor housing, the unit forms a decentralized servo node that eliminates long motor cables and reduces the heat load within the cabinet. It suits indexing tables, pick-and-place modules, and light machining axes that need accurate motion with minimal wiring.

The unit operates from a DC 750 V bus shared among multiple axes. Heat is removed solely by natural convection, so no fans or liquid cooling plates are required. Frame size 061, motor length C, and winding code 35 establish the continuous torque class available at the shaft. The unit has a standard design, is Version 1, and belongs to Series 2. Position feedback is exchanged over the Hiperface channel. The sensor uses a capacitive operating principle and generates 16 signal periods per revolution for precise commutation. An internal electrically released brake prevents load drift whenever the bus voltage drops. The basic performance level is intended for medium-speed conveying and assembly tasks.

For field wiring, a single hybrid connector carries power, Ethernet, and I/O signals to the housing. Upstream controllers address the axis over the Multi-Ethernet interface, allowing the unit to connect to PROFINET, EtherNet/IP, or SERCOS networks as required. The drive transfers torque through a plain shaft with a shaft seal, which helps prevent grease or coolant from reaching the internal components. The brake coils operate at DC 24 V, allowing them to use the machine's auxiliary power supply. The single-turn encoder provides rotor position data within one mechanical revolution, while external controls provide any required motion supervision.