KSM02.1B-076C-35N-S1-HG0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-076C-35N-S1-HG0-ET-L3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. This unit combines a permanent-magnet servo motor, power electronics, and feedback circuitry, allowing the drive to be mounted directly on moving axes while reducing control cabinet space. It is used in modular material-handling equipment and small assembly stations where compact, decentralized motion control is required.

The drive operates from a 750 V DC common DC link, so several axes can share regenerated energy without separate rectifiers. A frame size of 076 provides the mechanical envelope for mid-torque duties, while rotor stack length C balances inertia for dynamic indexing. Stator winding code 35 matches the electrical design to the bus voltage and helps keep phase current within transistor limits. Position feedback is delivered by an encoder that generates 128 signal periods per revolution and uses an optical sensing element. This combination supports fine speed regulation and resists interference from magnetic dust. The Hiperface interface carries absolute single-turn position data and diagnostic information over the same cable, minimizing the number of required connections.

All power, network, and sensor conductors are routed through a single hybrid connector, simplifying the cable arrangement. For controller networking, the module recognizes Multi-Ethernet telegrams, so it can connect to PROFINET, EtherNet/IP, or EtherCAT networks without physical modifications. Heat is removed through natural convection, eliminating fans and their associated maintenance requirements in washdown areas. Integrated functional safety is provided by Safe Torque Off (STO), which disables the power stage to achieve zero torque without disconnecting the DC bus. The plain shaft includes a shaft seal, and the drive has no holding brake, so any required mechanical locking must be provided externally. The product is design version 1, uses the standard option set, has Series 2 electronics, and provides a basic performance level for general-purpose motion tasks.