KSM02.1B-061C-35N-M1-HP2-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M1-HP2-ET-L3-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. As a motor-integrated servo drive, it mounts directly on the machine frame, combining power electronics, feedback, and the servomotor in one enclosure to reduce cabinet wiring and support decentralized motion axes in automation lines. It accepts a high-voltage DC bus and uses a multi-protocol network to let a PLC issue position, speed, and torque commands.

Electrically, it draws from a DC 750 V intermediate circuit, so it can be installed on common Rexroth IndraDrive power supplies without an additional mains rectifier. Power, signal, and brake conductors are carried through a hybrid connector, which simplifies daisy-chain layouts. Thermal management relies on natural convection; therefore, the heat sinks are sized for free-air mounting instead of forced airflow. Functional safety is provided by a hardware-based Safe Torque Off channel that removes drive energy within milliseconds. Control data travel over Multi-Ethernet, and the installed design option provides output coupling so downstream devices can be linked without extra switches. The unit is design version 1 and Series 2, with the Basic performance level and winding code 35. The size 061 stator has a C-length frame that keeps the package short. A shaft with a keyway transfers torque to the load, and an integrated shaft seal blocks contaminants.

Mechanical holding is provided by an electrically released brake that engages automatically when control power is removed; the coil is rated at DC 24 V. Position feedback uses an optical encoder that communicates through Hiperface. The scanning head resolves rotor movement into 128 signal periods per revolution, and its memory tracks turns in a multi-turn absolute format so the axis retains its position after power loss.