KSM02.1B-061C-61N-M1-HG0-ET-SD-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M1-HG0-ET-SD-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It consolidates the control electronics and motor in a single housing so machine builders can shorten cabinet cable runs and reduce wiring points. Within the platform, it has size 061 and a C-length stack, and it is issued as design version 1 with a basic performance level. The device belongs to Series 2 of the KSM line and provides axis positioning and velocity control in distributed automation architectures.

This drive draws power from a 750 V DC bus and routes power and feedback through a single hybrid connector, minimizing cable bulk. Heat is removed through passive natural convection, so no dedicated fan is required. The Multi-Ethernet output coupling option supports the main communication interface, enabling deterministic data exchange over EtherNet/IP, PROFINET, and other Ethernet-based fieldbuses. Position and speed feedback are transmitted through a Hiperface encoder link. A shaft seal protects the internal bearings from contaminants. The unit is supplied without a holding brake, and its plain shaft transmits torque directly to the connected load.

Measurement accuracy is provided by an optical transducer that resolves the rotor angle into 128 signal periods per revolution. The encoder stores position through a multi-turn absolute counter, retaining the measured shaft position across multiple revolutions. Integrated Safe Motion with SBC supports certified stopping and motion-monitoring functions without separate safety hardware. The motor uses winding code 61, and the winding is matched to the DC bus voltage for consistent torque production. The encoder's optical operating principle reduces position jitter at low speeds. Distributed mounting places the drive electronics near the controlled axis, which reduces heat accumulation inside the main cabinet on multi-axis machines.