KSM02.1B-041C-42N-S1-HG0-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

Bosch Rexroth Indramat's KSM02.1B-041C-42N-S1-HG0-ET-S3-D7-NN-FW is a motor-integrated servo drive in the KSM Motor Integrated Servo Drives series. By combining a permanent-magnet motor, feedback circuit, power stage, and control electronics in one housing, the unit simplifies cabinet layouts and shortens drive cables in modular automation cells. It is intended to position tooling, conveyors, or pick-and-place axes with closed-loop precision while running from a common DC bus on multi-axis machines.

The drive is energized by a DC 750 V supply that feeds its internal inverter stage, allowing direct connection to centralized power supplies without an intermediate AC rectifier. Incoming power and control wiring are combined in a single hybrid connector, which reduces installation time and minimizes panel space. Heat generated by the electronics is removed through natural convection; no fans are required, so maintenance is limited to periodic cleaning of the external fins. Rotor position is monitored through a Hiperface encoder interface, and the optical sensor delivers 128 signal periods per mechanical revolution for commutation and fine velocity regulation. The motor has size 041, length C, and current ratings associated with its winding code. The module uses the standard design option and design version 1.

The integrated master port supports Multi-Ethernet protocols, enabling real-time communication with EtherNet/IP, PROFINET, or EtherCAT hosts. Motion supervision is handled by Safe Motion without SBC, allowing certified safety functions to operate without shutting down the main drives. The output uses a plain shaft with a shaft seal to help guard against contamination. The winding code is 42 and is paired with the basic performance level. Feedback is provided by a single-turn optical encoder, and the assembly is supplied without a holding brake, making it suitable for applications where vertical load retention is unnecessary. The unit uses Series 2 mechanical geometry for mounting compatibility with other supported components in the product line.