KSM02.1B-061C-35N-S1-HP2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-S1-HP2-ET-L3-D7-NN-FW is a motor-integrated servo drive built by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining the servo motor, feedback system, power electronics, and network interface in one enclosure, the unit provides decentralized axis control for automated assembly, packaging, and conveying lines. It accepts power from a shared DC bus and mounts directly on machine frames, reducing cabinet space and cable lengths while supplying regulated torque and speed to the driven load. This integrated arrangement also shortens the connections between the control electronics and motor.

The drive operates from a supply rail of DC 750 V, distributing phase current through a hybrid connector that carries power, control, and safety conductors in one plug. Heat is removed solely by natural convection, so no forced-air accessories are required when sufficient ambient airflow is available. A Bosch Rexroth optical encoder delivers 128 signal periods per revolution and communicates over the Hiperface interface. Its single-turn scanner supplies absolute position data to the integrated controller. The Safe Torque Off (STO) circuit prevents torque production by disabling gate firing without disconnecting the main supply. Design version 1 uses the standard option range and a C-length stator for decentralized handling applications.

An electrically released holding brake energized at DC 24 V secures the shaft during power loss or a controlled stop. Networked motion commands travel through the Multi-Ethernet master port, enabling real-time communication with compatible EtherCAT, Sercos, or PROFINET controllers. The unit belongs to Series 2 and supports distributed control architectures that coordinate multiple machine-mounted axes. The motor has a frame size of 061 and transmits torque through a shaft with a keyway. An internal shaft seal helps prevent fluid from reaching the motor interior in light-spray areas. Winding code 35 identifies the electrical arrangement used to produce the required torque and speed characteristics for material-handling loads.