KSM02.1B-041C-42N-S1-HP0-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HP0-ET-NN-D7-NN-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. The product combines permanent-magnet servo mechanics, power electronics, and fieldbus communication in one enclosure, enabling decentralized installation on moving machine parts. It delivers closed-loop position and speed control for automated packaging stations, pick-and-place handling, and assembly systems while reducing cabinet wiring.

The drive accepts a nominal bus voltage of DC 750 V, letting several axes share the same power supply. A hybrid connector carries DC power, Ethernet, and I/O signals in a single cable, simplifying routing through drag chains. Control data are exchanged through the Multi-Ethernet master interface, eliminating the need to select a fixed protocol during procurement. Rotor position is sensed by a Hiperface optical encoder that outputs 128 signal periods per revolution and provides single-turn absolute feedback. Heat is removed by passive natural convection, so no cooling fan is required. The unit is supplied without a holding brake, and a shaft seal prevents fine contaminants from entering the front bearing.

The motor has a size of 041 and a length code of C, giving it a compact frame for moderate-inertia loads. Winding code 42 indicates the electrical characteristics used for current control and thermal protection. Torque is transferred through a shaft with a keyway that mates directly with standard couplings. The unit has the Standard design option and design version 1, aligning it with the second-generation KSM platform, which is also known as Series 2. Multiturn position counting can be handled by the master controller when an application requires position tracking across multiple shaft revolutions.