KSM02.1B-061C-35N-M1-HG2-ET-S3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M1-HG2-ET-S3-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines drive electronics with a synchronous motor, eliminating the need for a separate cabinet-mounted inverter and supporting decentralized motion in automated assembly, packaging, and conveying systems. The unit belongs to hardware series 2 and has design version 1. Its motor has size 061, length code C, and winding code 35, providing the electrical and mechanical configuration required for compatible motion applications.

A regulated supply of DC 750 V powers the drive stage, while natural convection removes heat from the housing without active fans. Power, signal, and safety conductors terminate at a hybrid connector, reducing the number of separate connections required for a distributed axis. The drive communicates with the controller through Multi-Ethernet and provides output coupling for connecting downstream nodes in a daisy chain. Position feedback comes from a Hiperface optical encoder that produces 128 signal periods per revolution. Its multi-turn absolute capability retains shaft-position information across multiple revolutions, allowing the control system to recover position after power is restored without requiring a homing movement.

The motor includes an electrically released brake powered by DC 24 V. Spring force applies the brake when electrical power is removed, allowing it to hold a stationary load or clamp the shaft during a power loss. Applying the brake supply releases the shaft for commanded motion. Torque is transmitted through a plain shaft with an integral shaft seal, and the seal helps prevent lubricant leakage while limiting the entry of dust and coolant at the output end. Integrated Safe Motion without SBC provides monitored motion-safety functions without Safe Brake Control. The unit has a Basic performance level and uses its combined power, communication, feedback, and safety architecture to reduce the amount of external axis wiring.