KSM02.1B-071C-35N-M1-HP0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HP0-ET-L3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. By combining drive electronics and a permanent-magnet motor in one enclosure, it delivers decentralized torque control for conveyors, packaging axes, and pick-and-place modules without separate cabinet inverters. This design reduces wiring runs, simplifies installation, and allows direct mounting on moving machine parts.

The unit is powered from a DC link of 750 V DC, and heat is removed through natural convection, so no fans are required inside the housing. Field connections are made through a single hybrid connector that carries power, signals, and safety wiring in one molded plug. Functional safety is implemented with Safe Torque Off (STO), which disconnects the drive stage when the safety circuit opens. Real-time control data pass over Multi-Ethernet, permitting the unit to join EtherNet/IP, PROFINET, or EtherCAT networks through protocol configuration. The motor has size 071 and length code C, while winding code 35 establishes the electrical resistance and inductance profile for medium-inertia loads. The drive is built to Series 2 and Design Version 1. It also has the standard design option and a basic performance level for general automation.

Position feedback uses a Hiperface interface that transmits an optical scale of 128 signal periods per revolution. The unit provides multi-turn absolute position tracking, so the controller receives persistent shaft position even after power loss. An optical scanning method minimizes sensitivity to electrical noise during high-speed updates. Because the module is supplied without a holding brake, applications that need static load retention must rely on external clamping or drive torque. Output torque is delivered through a shaft with a keyway. A shaft seal is fitted to block coolant or dust from entering at the bearing face.