KSM02.1B-061C-35N-M1-HG2-ET-SD-D7-ES-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M1-HG2-ET-SD-D7-ES-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. This product combines a permanent-magnet servo motor, feedback electronics, and a power stage in one housing, allowing decentralized motion control inside automated production equipment. With a basic performance level, motor size 061, and length code C, the compact unit can be mounted directly on moving axes or within tight machine frames.

The power section is supplied from a DC 750 V bus, so it can share a common intermediate circuit with other drives while avoiding separate AC inverters. Power, signals, and safety wiring reach the unit through a hybrid connector, reducing panel space and simplifying assembly. Heat generated by the embedded converter leaves the housing through natural convection, so no fan maintenance is required when the drive operates in clean ambient air. Position feedback is transmitted through a Hiperface interface, and the optical encoder delivers 128 signal periods per mechanical revolution, giving the controller consistent angle data for precise velocity and torque control. Safe Motion with SBC circuitry monitors operation to provide integrated safe torque off and speed-limiting functions.

Network integration is handled by the Multi-Ethernet interface, enabling the unit to accept EtherNet/IP, PROFINET, or EtherCAT telegrams. Absolute position is retained across power cycles through multi-turn absolute position sensing, while an electrically released brake powered at DC 24 V secures the shaft when the machine is idle. The mechanical output uses a plain shaft with a shaft seal, allowing direct coupling to timing pulleys or gearheads while helping prevent lubricant ingress. Design option M1 and winding code 35 provide electromagnetic characteristics suited to medium-torque applications. The external safety bus connector supports additional emergency-stop channels for integration with machine safety circuits.