KSM02.1B-041C-42N-M1-HP0-ET-NN-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-M1-HP0-ET-NN-D7-TO-FW is a motor-integrated servo drive built by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines power electronics and the 041-frame servomotor in one housing, allowing the unit to be mounted directly on moving axes while reducing cabinet space. The product executes position, speed, and torque loops at the drive level, making it suitable for pick-and-place modules, small gantries, and packaging stations that require compact, decentralized motion control.

The drive operates from a 750 VDC bus and exchanges power, I/O, and safety signals through a single hybrid connector. Heat is removed by natural convection, so no cooling fans are required. A Multi-Ethernet output coupling supports power daisy-chaining and real-time fieldbus communication. The communication interface supports PROFINET, EtherNet/IP, and EtherCAT networks. The drive is design version 1, and the internal stator uses winding code 42 for its torque and speed characteristics. The motor has a size of 041 and a length of C, while a factory-installed shaft seal protects the Series 2 housing. The unit is supplied without a holding brake, so external mechanics or drive torque must secure the load when power is removed.

Position feedback is provided by a Hiperface encoder that combines digital communication with analog sinusoidal tracks. The optical sensor generates 128 signal periods per revolution and stores revolution counts through its multi-turn absolute architecture. Motion-related functional safety must be implemented through an external controller because the drive does not include integrated safety functions. Output torque is transmitted through a shaft with a keyway, and the shaft seal helps block dust and coolant from entering during washdown cycles. The encoder supports absolute position detection after power is restored, eliminating the need for a new reference movement in applications that retain valid position data.