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

The KSM02.1B-061C-35N-M3-HG0-ET-L3-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines inverter electronics, feedback, and a size 061 synchronous motor in a single housing. The C-length magnetic stack and internal Series 2 platform provide the basic performance level required for medium-duty axes, while design version 1 establishes the mechanical dimensions. Mounting the controller directly on the motor reduces cabinet wiring and supports distributed motion on packaging lines and material-handling stations.

The drive operates from a DC 750 V bus, eliminating large AC feeders and enabling common-bus installations. Heat is removed through natural convection, so no external fans are needed. A single hybrid connector carries DC power, logic, and signal lines, reducing the amount of installation wiring. Position data comes from a Hiperface encoder that provides 16 signal periods per revolution. Its multi-turn absolute capability allows the axis to report its position after a power cycle without requiring a new homing sequence. The magnetic design uses winding code 35 to balance current demand with the output requirements of the motor. This arrangement allows the integrated drive and motor to share feedback, power, and control connections within a compact assembly.

The integrated controller offers Multi-Ethernet connectivity, allowing it to join EtherNet/IP, PROFINET, or EtherCAT networks without an additional communication card. The power stage incorporates Safe Torque Off circuitry, enabling the immediate removal of torque-producing energy as part of a Category 0 stop chain. Rotor position is measured with a capacitive scanning head that resists the effects of dust and vibration. Mechanical output is transmitted through a plain shaft with a lip seal, which helps protect the motor interior from contaminants. The assembly is supplied without a holding brake, allowing the shaft to remain back-drivable when drive torque is unavailable. This configuration is suitable for applications such as delta robots, where external mechanics or drive control manage the axis at standstill.