KSM02.1B-071C-24N-M1-HP2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-M1-HP2-ET-L3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It houses power electronics, feedback components, and the mechanical actuator in one assembly, allowing decentralized mounting on machine frames while reducing cabinet space. As a motion module, it provides closed-loop position and velocity control for automated packaging, material-handling, and assembly axes.

The drive operates from a bus supply of 750 V DC, and winding code 24 corresponds to the basic winding layout of the size C stator. Frame size 071 establishes the flange geometry and torque class, while Design Version 1 belongs to internal series index 2 and uses the standard design option with the basic performance level. Command and diagnostic data reach the unit over Multi-Ethernet, allowing PROFINET, EtherNet/IP, or EtherCAT communication to be selected through software. Functional safety is provided by Safe Torque Off (STO), which disables torque-producing power to the motor without external contactors. An electrically released brake clamps the shaft when control power is lost and releases when supplied with 24 V DC, helping secure vertical loads during an emergency stop.

Field wiring is simplified by a single hybrid connector that carries power, signal, and brake circuits. Rotor feedback uses a Hiperface interface connected to an optical multi-turn absolute encoder with 128 signal periods, supporting accurate position tracking across power cycles. Heat generated by the electronics is dissipated through natural convection, eliminating the need for cooling fans. The sealed housing includes a shaft seal that helps prevent contaminants from reaching the internal bearings. Motion is transmitted through a shaft with a keyway, which provides positive engagement with compatible couplings and driven components.