KSM02.1B-071C-35N-S1-HG2-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-S1-HG2-ET-NN-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat in the KSM Motor Integrated Servo Drives series. By combining a synchronous motor, power electronics, and communication hardware in a single housing, the unit reduces cabinet wiring and drives axes directly from the machine frame. In automated assembly cells and packaging lines, it provides closed-loop torque and speed control for mid-frame loads while reducing the number of separate components installed in the control cabinet.

Electrical power is supplied from a DC 750 V intermediate circuit connected to the central supply module. Field wiring uses a hybrid connector, allowing the motor phases, brake leads, and Ethernet conductors to share one plug. Heat is removed through natural convection, so the aluminum housing dissipates losses without fans and requires unobstructed airflow around its exterior surfaces. Rotor position feedback travels over Hiperface, and the optical encoder provides 128 signal periods per revolution. The controller interpolates these signals to support precise motion, while the single-turn design tracks the shaft angle within one mechanical rotation. The motor uses frame size 071 and length C, providing the stator stack depth associated with its continuous torque capacity. The unit follows the standard option set and uses design version 1.

The electrically released brake operates at DC 24 V and engages when control power is removed, helping prevent vertical loads from back-driving the shaft. Control nodes communicate through Multi-Ethernet, which supports the selection of EtherNet/IP, PROFINET, or EtherCAT to match the connected PLC network. Output torque passes through a plain shaft with a shaft seal, and the seal helps prevent contaminants from entering the bearing area. The internal copper arrangement uses winding code 35, while the drive has a basic performance level and Series 2 electronics. Integrated safety functions are not included, so any required safety control must be provided elsewhere in the machine system.