KSM02.1B-041C-42N-S1-HG2-ET-S3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HG2-ET-S3-D7-TO-FW is manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a brushless servomotor, inverter stage, and fieldbus interface in one enclosure, allowing the axis to be mounted close to the load without occupying a control cabinet slot. As a motor-integrated servo drive, it provides closed-loop positioning for pick-and-place robots, feeders, and indexing tables while shortening cable runs in distributed machine layouts.

Electrical power enters through a single hybrid connector that carries the DC-link and signal conductors. The drive accepts a bus voltage of 750 V DC, allowing it to share energy with other axes on the same power rail. Heat produced by the inverter is removed through natural convection, eliminating the need for fans or liquid cooling circuits. Rotor position is returned over a Hiperface interface, and its optical sensor generates 128 signal periods per revolution for accurate closed-loop control. The C-length stator and basic performance level support rapid responses to changing loads while maintaining a compact motor profile. Winding code 42 identifies the electrical configuration used by the integrated drive and motor.

The holding mechanism is an electrically released brake energized at 24 V DC, so the shaft remains locked whenever control power is removed. Communication with the master controller is handled by the Multi-Ethernet stack, which supports EtherNet/IP, PROFINET, and EtherCAT through the integrated communication interface. Mechanical power is transmitted through a plain shaft, and a shaft seal protects the bearing set from coolant and dust. Integrated Safe Motion functions monitor speed and stopping sequences to performance level d without a Safety Brake Control module. The unit uses single-turn feedback and has motor size 041. It is design version 1 and series 2.