KSM02.1B-061C-35N-M3-HP0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M3-HP0-ET-L3-D7-TO-FW motor-integrated servo drive is produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. This device combines a permanent-magnet servo motor, power electronics, and a network interface in a single housing, allowing decentralized mounting on moving axes. It is used in industrial automation to deliver precise torque and speed control while minimizing control-cabinet space and reducing cable runs.

The drive operates from a bus voltage of DC 750 V, giving the embedded inverter enough capacity for rapid acceleration and regenerative braking. Heat is removed through natural convection, so no fans or forced-air ducts are required, but clearance must be maintained around the finned enclosure. Power, feedback, and 24 V safety contacts are grouped inside a single hybrid connector, reducing midline junctions on the machine. Emergency stopping is supported by the hardware-based Safe Torque Off (STO) channel, which disables gate signals within microseconds. Position data reaches the control processor over Hiperface. The assembly has motor size 061, length C, winding code 35, Basic performance level, design version 1, and internal series number 2. It is supplied without a holding brake.

For field networks, the electronics provide a Multi-Ethernet port capable of automatically negotiating EtherNet/IP, PROFINET, or EtherCAT communication. The absolute feedback system resolves the rotor over 16 signal periods per revolution and stores the turn count in nonvolatile memory, enabling accurate positioning immediately after power-up. Its sensing element is capacitive, so it remains accurate in environments with strong magnetic fields. Mechanical power leaves the unit through a shaft with a keyway. A factory-installed shaft seal limits lubricant leakage and the ingress of contaminants, while the shaft arrangement accommodates the torque associated with winding code 35.