Product Description:

Bosch Rexroth Indramat’s KSM02.1B-041C-42N-M1-HG2-ET-L3-D7-TO-FW is a motor-integrated servo drive from the KSM Motor Integrated Servo Drives series. By combining a brushless servomotor and a digital power stage in one housing, it provides a decentralized axis for packaging, handling, and assembly lines. The integrated design reduces cabinet wiring while still delivering regulated torque, position feedback, and drive electronics directly at the machine frame. This arrangement helps place the power and control functions close to the moving axis without requiring a separate motor and drive package.

The electromechanical interface is consolidated in a Hybrid Connector that routes power, control, and safety lines through one plug. A supply rail of DC 750 V feeds the inverter, while winding code 42 matches the stator to this operating voltage. Heat is removed by natural convection, so no external fans are required and the enclosure stays free of moving parts. Communication with the controller is handled through the Multi-Ethernet interface, and axis data can travel over protocols such as EtherNet/IP or PROFINET. Motion feedback runs on the Hiperface interface for deterministic position reporting. This unit is version 1, belongs to series 2, carries the Basic performance level, and uses motor size 041 with length C.

An optically scanned encoder with 128 signal periods per revolution supplies multi-turn absolute data, allowing the axis to start without a homing cycle. The encoder uses an optical measuring principle that resists magnetic interference, and its battery-free gear wheel tracks turns. Position holding during shutdown is secured by an electrically released brake that engages at DC 24 V. When safety inputs demand it, the drive executes Safe Torque Off (STO) so motor torque drops to zero without disconnecting the DC link. The motor has a plain shaft with a shaft seal, which helps reduce friction and limits lubricant escape.