KSM02.1B-071C-35N-M1-HG0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HG0-ET-L3-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By integrating the motor, power stage, and network electronics in one compact housing, the unit supports decentralized mounting on machines and conveyors. It delivers closed-loop speed and position control without requiring a separate cabinet-mounted inverter. This arrangement reduces wiring runs, supports modular production-line layouts, and simplifies setup for automated assembly and packaging applications.

The drive operates from a 750 VDC common bus, allowing multiple axes to share regenerative energy while reducing supply cabling. Power, feedback, and communication lines are routed through a single hybrid connector, so installation requires only one plug instead of several separate leads. Heat is removed through natural convection, eliminating cooling fans and helping the enclosure remain sealed. The drive uses Multi-Ethernet communication to support PROFINET, EtherNet/IP, or EtherCAT services. A frame size of 071 is paired with motor length C and winding code 35, providing mid-range torque in a short housing. The unit is design version 1 and belongs to internal series 2. Its basic performance level supports standard motion profiles in decentralized automation systems.

Rotor position is reported through a Hiperface interface connected to an optical sensor. The sensor provides 128 signal periods per revolution, while its multi-turn absolute capability preserves position information across power cycles. Functional safety is provided by Safe Torque Off (STO) inputs, which disable the inverter gate drive when both channels are inactive. Mechanical output is delivered through a plain shaft with a shaft seal, helping prevent fluid from entering around the shaft opening. The motor is supplied without a holding brake, so external clamping or gravity compensation is required when static loads must remain securely positioned after motor torque is removed.