KSM02.1B-041C-42N-S3-HG0-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S3-HG0-ET-NN-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a servo motor, power stage, and motion control electronics in one compact housing so that machine builders can distribute axes directly on the machine frame and limit control-cabinet wiring. In automated packaging, conveying, and small assembly stations, the unit supplies closed-loop torque and position control while reducing panel heat load and cable length.

This drive connects to the DC link through a hybrid connector that carries both power and SERCOS communication conductors in one molded plug. The power section is rated for a bus voltage of 750 VDC; this high intermediate voltage supports longer cable runs without excessive current. Thermal management relies on natural convection, so no fans are present and the enclosure must be mounted with sufficient space for airflow. Rotor position data are transmitted through a Hiperface interface, and the feedback device generates 16 signal periods per mechanical revolution for precise commutation. Size code 041 and motor length C establish the frame envelope and torque capability, while design version 1 and the Basic performance level indicate the standard feature set.

Motion commands are exchanged over Multi-Ethernet, allowing the axis to join EtherNet/IP, PROFINET, or EtherCAT networks without additional gateways. The feedback system uses a single-turn capacitive encoder, providing absolute shaft position within one revolution and high resistance to magnetic fields. The motor uses winding code 42, which is matched to the integrated inverter. The plain shaft includes a seal that protects the internal bearings from oil and dust. The drive is supplied without a holding brake and uses a standard mechanical design. No additional safety technology is integrated, so required safety functions must be handled by the machine control system. The unit is Series 2 and is mechanically compatible with later KSM accessories.