KSM02.1B-071C-35N-S1-HG0-ET-SD-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-S1-HG0-ET-SD-D7-NN-FW is manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. By combining a synchronous motor, power electronics, and a network interface in one enclosure, it delivers decentralized axis control for packaging machinery, gantries, and other distributed automation layouts. The unit installs close to the load, minimizing cabinet wiring while still providing precise position, speed, and torque regulation. It is supplied with the Basic performance level and design version 1, making it suitable for standard motion sequences rather than advanced interpolation.

It draws power from a buffered DC link at DC 750 V, allowing energy to be shared among drives. Power, logic, and feedback lines pass through one hybrid connector, which reduces cable bulk. Heat is removed by natural convection, eliminating the need for fans or liquid cooling circuits. An optical encoder with a Hiperface output produces 128 signal periods per revolution, while internal interpolation refines the position data. The encoder provides single-turn position feedback. The motor is supplied without a holding brake, so an external clamp must secure a vertical load when power is off.

Functional safety is implemented through Safe Motion with SBC, which allows the controller to verify speed and position limits without a separate safety drive. Real-time command and diagnostic data travel over Multi-Ethernet, supporting EtherNet/IP, PROFINET, or EtherCAT through a common communication interface. The frame size is 071, and motor length C establishes the available magnetic stack length. Winding code 35 provides the electrical characteristics needed for mid-range indexed axes. A plain shaft simplifies direct coupling, while an internal shaft seal helps prevent grease migration and particle entry. The unit uses the standard design option and Series 2 electronics.