KSM02.1B-061C-35N-S1-HG0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-S1-HG0-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 a permanent-magnet servo motor with embedded power electronics, the unit can execute decentralized motion tasks on packaging lines, material-handling axes, and gantry systems without a separate cabinet inverter. It receives direct DC bus power, closes position and velocity loops locally, and reduces wiring complexity in industrial automation cells.

The drive runs from a supply of DC 750 V, enabling energy sharing with adjacent axes on the same bus. Power, feedback, and safety conductors are carried through a single hybrid connector, simplifying installation and reducing the number of separate cable connections. Thermal loss is dissipated by natural convection, so no serviceable fans are required. Rotor position is reported by a Hiperface optical encoder that produces 128 signal periods per revolution. This single-turn feedback supports fine speed regulation and efficient motor commutation. The drive is design version 1 and belongs to Series 2. Its C length code and 35 winding code match the magnetic stack and winding arrangement to the basic performance level.

Functional safety is provided by Safe Torque Off (STO), which interrupts torque-producing motor energy while maintaining the DC link when a stop command is asserted. Network integration is handled by the Multi-Ethernet output coupling, allowing SERCOS, PROFINET, EtherNet/IP, or EtherCAT communication to be selected through configuration. The axis is built on frame size 061, providing a compact motor housing for decentralized installations. Torque is transmitted through a plain shaft, and a shaft seal protects the bearings against dust and coolant. The motor is supplied without a holding brake, so controlled torque or an external mechanism must retain the load when stationary. Its compact mechanical package supports installation directly on the machine frame where cabinet space or cable routing is limited.