KSM02.1B-071C-24N-M1-HP0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-M1-HP0-ET-L3-D7-NN-FW is a motor-integrated servo drive from Bosch Rexroth Indramat built for the KSM Motor Integrated Servo Drives series. By combining drive electronics with the mechanical rotor and stator, it reduces cabinet wiring and simplifies installation in distributed automation systems. It controls motion directly at the axis by converting intermediate-circuit power into regulated torque for packaging, handling, or assembly stations within industrial automation cells. This integrated arrangement also shortens the connections between the motor, drive electronics, and local control interfaces.

The drive accepts a supply of DC 750 V and releases heat into the surrounding air through natural convection, eliminating the need for forced airflow. Power, feedback, and network signals enter through a single hybrid connector, which reduces the number of separate cable connections at the axis. Real-time commands are exchanged through Multi-Ethernet interfaces, allowing the unit to operate on EtherCAT, SERCOS III, or PROFINET networks without additional communication hardware. For functional safety, the integrated logic supports Safe Torque Off (STO), which interrupts torque-producing power during an emergency stop. Rotor position is measured by a Hiperface encoder with an optical scale that produces 128 signal periods per revolution. The encoder supplies position information for closed-loop torque, speed, and motion control. The drive belongs to series index 2, uses the standard design option, and has design version 1.

The actuator uses frame size 071 with motor length C and winding code 24, balancing continuous torque capability with compact housing dimensions. Its performance level is classified as Basic, making it suitable for applications that require precise motion with moderate dynamic demands. Position data remains available after a loss of power because the sensing system provides multi-turn absolute position feedback. A shaft with a keyway transfers torque positively to a coupling or other driven component. The installed shaft seal helps prevent contaminants from entering the bearing section during operation. The mechanical output end is supplied without a holding brake, so an external mechanism or drive-applied torque must secure stationary loads when necessary. The smooth housing provides an unobstructed surface for passive heat transfer to the surrounding air.