KSM02.1B-041C-42N-S3-HP0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S3-HP0-ET-L3-D7-NN-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining power electronics, feedback processing, and a permanent-magnet servomotor in one housing, the unit simplifies decentralized motion control on conveyor lines, gantries, and packaging machinery. This integration reduces the need for separate control cabinets and minimizes wiring, making the drive practical wherever a compact axis with precise torque and speed regulation is required. Its decentralized design also allows the power electronics to be installed close to the driven machine axis.

Electrical power is supplied at DC 750 V, so the drive connects directly to the shared intermediate circuit of IndraDrive supplies. A hybrid connector carries the DC bus and field I/O, reducing the number of cable runs. Heat is removed through natural convection, which permits cabinet-free mounting when sufficient ambient airflow is available. Rotor position is reported over a Hiperface link, and the capacitive sensor provides a resolution of 16 signal periods per revolution to support smooth commutation at low speeds. The unit has motor size 041, length C, and winding code 42. It uses standard design version 1 and has a basic performance level for medium-duty axes that do not require high overload capacity.

The connection block supports Multi-Ethernet networks, enabling real-time control through Sercos III, PROFINET, EtherNet/IP, or EtherCAT without a hardware change. The integrated Safe Torque Off (STO) circuit independently removes torque-producing energy from the motor without relying solely on the PLC. Motion is transferred through a shaft with a keyway, providing positive engagement with a compatible coupling or gearbox. A shaft seal helps retain grease and protect the shaft opening during washdown cleaning. The motor is supplied with no holding brake, so an external mechanism must secure vertical loads when power is removed. The unit uses the Series 2 electrical platform found in this KSM product line.