KSM02.1B-041C-42N-S1-HP0-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HP0-ET-S3-D7-NN-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It places the power electronics, feedback components, and motion controls directly on the motor housing. This compact arrangement allows decentralized axes to be installed in automated machinery without separate drive cabinets. The integrated design also reduces the amount of wiring required between the motor and the control enclosure.

An integrated hybrid connector routes power, feedback, and network wiring through a single plug. Heat is removed through natural convection, eliminating the need for forced airflow. The drive accepts a bus supply of DC 750 V and uses the standard design option with design version 1. The motor has size 041 and length C, while winding code 42 indicates its magnetic configuration. The product is part of Series 2 and has a Basic performance level. Position data are captured by an optical encoder that communicates through the Hiperface interface. Functional safety is provided by Safe Motion without SBC, supporting integrated motion safety functions without safe brake control. A shaft seal helps limit the entry of contaminants when the unit is installed in exposed areas.

The feedback system uses a single-turn code disk to track the rotor angle within one mechanical revolution. It provides 128 signal periods per revolution for coordinated motion in multi-axis applications. Command and diagnostic traffic uses Multi-Ethernet communication, allowing the drive to connect to EtherNet/IP, PROFINET, or EtherCAT networks without an additional communication module. This network flexibility supports communication with different control platforms while retaining the same integrated drive arrangement. Mechanical power is transmitted through a shaft with a keyway, providing positive engagement with a compatible coupling or driven component. The motor does not include a holding brake, so an external device must secure static or suspended loads when power is removed.