KSM02.1B-061C-35N-M3-HG0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M3-HG0-ET-L3-D7-NN-FW belongs to the second-generation KSM Motor Integrated Servo Drives series from Bosch Rexroth Indramat. By combining a permanent-magnet servo motor with decentralized drive electronics, the unit delivers closed-loop motion control directly on the machine frame, reducing cabinet wiring in assembly lines, packaging cells, and material-handling axes. It is a basic-performance device intended for applications that require precise torque while minimizing cabinet space and installation time.

The drive draws power from a shared 750 V DC bus and distributes it internally without an additional inverter cabinet. A single hybrid connector carries the DC supply, feedback, and I/O signals, so only one cable links the module to the plant harness. Commands and diagnostic data travel over Multi-Ethernet, which supports major real-time Ethernet variants and flexible network topologies. The unit integrates Safe Torque Off (STO), which disables the power stage without relying on contactors. Heat is removed by natural convection, so no fans are installed and sufficient vertical airflow is required around the housing. The unit operates with the standard feature set for design version 1.

The motor has a size code of 061 and a medium motor length of C, giving it a compact footprint for tight mounting patterns. Winding code 35 indicates the resistance and inductance values used by the integrated drive controller. Rotor position is reported through a Hiperface interface connected to a capacitive, multi-turn absolute encoder with 16 signal periods of resolution. This encoder retains absolute position information across power cycles, allowing the controller to recover the axis position without a complete homing sequence. The motor has a plain shaft with a shaft seal that helps limit contaminant ingress. It is supplied without a holding brake, so external mechanical equipment must secure vertical loads when the STO function is active. The standard design has no special coatings or mechanical reinforcements.