KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-TO-FW motor-integrated servo drive is produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By merging a permanent-magnet servo motor, drive electronics, and a fieldbus interface in a single housing, the unit minimizes cabinet space and distributes axis control directly across the machinery. It supports precise positioning and speed regulation in packaging, assembly, and material-handling lines where quick installation and a compact footprint are important. Its drive section draws direct-current power from a shared DC bus and supplies the embedded motor with sinusoidal output.

The single-cable power, signal, and brake feed is handled through a hybrid connector, simplifying routing through drag chains. Heat is removed by natural convection, so no fans are required and the enclosure remains sealed against dust. The master communication protocol is Multi-Ethernet, and the Multi-Ethernet output coupling allows the unit to communicate with the controller through SERCOS III, PROFINET, EtherNet/IP, or EtherCAT. Motion feedback travels over a Hiperface link between the optical encoder and the power stage. The power module tolerates a bus voltage of DC 750 V, matching the supply rails used by modular multi-axis machines. Combining the power and communication connections in the motor housing reduces the amount of separate wiring required between the control cabinet and the axis.

Position sensing is provided by an optical encoder that delivers 128 signal periods per revolution. The encoder stores the absolute shaft angle across multiple rotations through its multi-turn absolute capability, eliminating the need for homing cycles after startup. The mechanical configuration uses the 061 frame with motor length C, a plain shaft, and a shaft seal for moderate protection against contaminant entry. Functional safety includes Safe Motion without SBC, enabling monitored stop functions without external relays. The device is supplied without a holding brake, so stationary load retention must be provided by motor torque or external mechanics when necessary. It carries winding code 61, operates at the Basic performance level, and is produced as design version 1 in Series 2.