KSM02.1B-071C-24N-M1-HG2-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-M1-HG2-ET-S3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet motor, Version 1 control electronics, and a Series 2 design in one housing. This integrated arrangement allows the unit to receive control commands, generate torque, and return position data without a separate cabinet-mounted inverter. Its 071 frame and C motor length provide a compact package for controlled feed axes in automated machinery.

A single cable with a hybrid connector carries DC power, fieldbus signals, and brake conductors, simplifying routing through drag chains and machine frames. The inverter section operates from a shared DC 750 V link, allowing compatible axes to draw power from a common DC bus. Heat is dissipated through natural convection, so the unit does not require a fan or liquid-cooling circuit. Position data comes from an optical encoder that provides 128 signal periods per mechanical revolution through a Hiperface interface. The encoder also supports absolute multi-turn position tracking, allowing the controller to retain axis position information across multiple shaft revolutions. Motion commands and operating data are exchanged through a Multi-Ethernet port that supports compatible real-time Ethernet protocols.

The mechanical output uses a plain shaft with a shaft seal, allowing clamping couplings to be installed while helping protect the bearing area from oil or coolant. An electrically released brake clamps the shaft when control power is removed and disengages when DC 24 V is applied through the hybrid cable. Winding code 24 identifies the electrical configuration used with the 071 frame and C motor length. The unit has a basic performance level and includes Safe Motion technology without Safe Brake Control. Supported safety functions include Safe Torque Off and Safe Stop 1 for applications that require controlled drive shutdown. The standard design option keeps the housing compatible with the mounting arrangement used for this motor-integrated drive series.