KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-NN-FW is built by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet synchronous motor, absolute feedback, and drive electronics in one housing to simplify decentralized axes on packaging, handling, and assembly equipment. Integrating the drive and motor reduces cabinet wiring and places motion control close to the driven axis. An industrial Ethernet connection links the unit directly to the machine network for coordinated control and diagnostic communication.

Electrical power arrives from a common DC rail at DC 750 V, and a single hybrid connector carries the supply, safety I/O, and Ethernet signals to reduce separate cable runs. Heat is dissipated through natural convection, so the housing requires unobstructed ambient airflow rather than a fan or liquid-cooling circuit. Motion commands are transmitted over Multi-Ethernet, allowing the interface to connect through PROFINET, EtherNet/IP, or Sercos III. Position data return through a Hiperface interface that synchronizes the built-in encoder with the controller. The standard mechanical design is design version 1 of Series 2, which maintains the associated mounting arrangement. The motor is supplied without a holding brake, so an external clamp or another suitable restraint must secure a vertical axis when power is removed.

The encoder produces 128 signal periods per revolution and delivers multi-turn absolute data, allowing the controller to recover the axis position after a power cycle without a new homing sequence. Its optical sensing module provides accurate rotor-position measurement without relying on magnetic sensing. Mechanical output is transferred through a plain shaft, while a shaft seal helps prevent fluids and contaminants from entering the housing. The motor has size 061, length code C, and winding code 61, identifying the electromagnetic arrangement used for the basic performance level. Safe Motion is included without an internal safe brake controller. When supported by the control protocol and system configuration, the safety functions provide Safe Torque Off and Safe Stop 1 channels for controlled machine operation.