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

The KSM02.1B-061C-35N-M1-HG2-ET-SD-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a synchronous motor, power stage, and feedback electronics in one enclosure, allowing the device to be mounted directly on an axis without a separate control cabinet inverter. In distributed automation lines, the drive receives network commands and produces precise torque, speed, and position responses for packaging, conveying, and material-handling tasks. This integrated arrangement also reduces the number of individual power and feedback connections routed between the machine and its control enclosure.

Power is supplied by a shared bus rated at DC 750 V, providing sufficient voltage for rapid acceleration while minimizing cable runs. Power, signal, and safety conductors terminate in a single hybrid connector, simplifying series wiring across multiple drives. Heat from the internal electronics is removed through natural convection, eliminating the need for cooling fans. Rotor position is reported through a Hiperface interface that works with an optical encoder offering 128 signal periods per revolution. The multi-turn absolute encoder retains revolution data when DC power is absent. The unit is Version 1 and uses motor size 061, length C, and winding code 35. It provides the Basic performance level and belongs to Series 2.

The integrated brake is electrically released and clamps the shaft automatically whenever control power is lost. Its release voltage is DC 24 V. Functional safety is handled internally by Safe Motion with SBC, allowing the drive to enter safe torque states without additional safety hardware. Motion commands and diagnostic data pass through a single Multi-Ethernet interface, which also supports daisy-chain connections for additional axes. A plain shaft transmits torque through friction couplings without requiring a keyway. The installed shaft seal helps prevent lubricants and contaminants from entering the motor housing and reaching the optical encoder.