KSM02.1B-061C-35N-M3-HP2-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M3-HP2-ET-NN-D7-NN-FW is a motor-integrated servo drive engineered by Bosch Rexroth Indramat for decentralized motion systems. It belongs to the KSM Motor Integrated Servo Drives series and combines drive electronics with a synchronous motor, reducing the amount of wiring required between a control cabinet and the machine. The unit uses design version 1, the standard mechanical option, and a basic performance level. It is part of Series 2 and is intended for distributed axes in applications such as conveyors, handling systems, and machine tools.

Electrical and mechanical connections are consolidated in a hybrid connector that routes power, control, and feedback through one plug. Heat is removed by natural convection, eliminating the need for cooling fans and their associated maintenance. Rotor position is reported through the Hiperface interface by a multi-turn absolute encoder with 16 signal periods. The absolute sensing system retains position information across multiple shaft revolutions, allowing the drive to establish the axis position after startup without a conventional homing cycle. Axis locking is handled by an electrically released brake powered at DC 24 V, which keeps vertical loads secure when power is removed. Network traffic is exchanged through the Multi-Ethernet protocol, which supports EtherNet/IP, PROFINET, and EtherCAT communication without requiring different communication hardware. Motor length C and winding code 35 provide an operating profile suited to medium-duty machine tools and conveyor axes.

The inverter section operates from a DC 750 V bus, allowing it to share energy with other drives connected to the same DC link. A frame size of 061 provides a compact footprint while supporting the motor's continuous torque output. The encoder uses a capacitive measurement principle, which is resistant to magnetic interference near welding equipment and induction heating systems. Mechanical power is transferred through a shaft with a keyway, providing positive engagement with a compatible coupling, pulley, or gearbox. A factory-installed shaft seal helps prevent contaminants from reaching the front bearing during operation in industrial machinery.