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

The KSM02.1B-071C-35N-M1-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. By combining drive electronics with a synchronous motor in a single housing, the unit simplifies cabinet wiring and shortens feedback loops in automated assembly stations, packaging lines, and material-handling axes. The assembly has a basic performance level and is intended for general-purpose positioning duties where rapid installation and decentralized control support modular machine layouts. The product represents generation 2 within the platform.

The drive is supplied through a hybrid connector, which carries DC bus power, signals, and network connections in one molded interface and fits a plant DC bus rated at 750 V DC. Heat created by the embedded power stage is removed through natural convection, so no fans or liquid-cooling circuits are required when the unit is mounted on an open machine frame. Functional safety is provided by the integrated Safe Torque Off (STO) circuit, which disables motor torque without interrupting fieldbus communication. For deterministic control and higher-level diagnostics, the device supports Multi-Ethernet communication, allowing the control system to use EtherNet/IP, PROFINET, or EtherCAT. The enclosure includes a shaft seal and uses the standard design option. The product is design version 1.

Position feedback is provided by an optical encoder that supplies absolute position data over the Hiperface interface. The sensing system tracks mechanical revolutions with multi-turn absolute capability and provides 128 signal periods, giving the controller detailed position data without battery backup. The motor section has a frame size of 071, a length code of C, and a winding code of 35 that matches the current range of KSM drives. A plain shaft transmits torque directly to compatible couplings. The unit is supplied without a holding brake, so external clamping or drive-generated torque must maintain the load position when power is removed.