KSM02.1B-061C-35N-M3-HG0-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-35N-M3-HG0-ET-NN-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. It combines a synchronous motor, power electronics, and a fieldbus interface in one enclosure. This arrangement places closed-loop axis control directly on moving gantries, rotary tables, or conveyor segments without requiring separate drive cabinets. The integrated design also reduces the amount of wiring between the motor and external control equipment.

This unit draws its intermediate-circuit power from a 750 V DC bus and exchanges real-time commands through a Multi-Ethernet interface that supports several industrial protocols. A single hybrid connector carries DC power, communication, and safety signals, simplifying installation and cable routing. Heat generated by the drive stage is removed through natural convection, so no cooling fans are required. Feedback from the motor is delivered over the Hiperface serial link, which provides position data to compatible Rexroth controllers. The device uses the standard design option and carries design version 1. It is part of Series 2 and has a basic performance level. The motor has winding code 35 and frame length C. It operates without a holding brake, so an external mechanism must secure loads that require power-off position retention. The unit does not include integrated safety technology, so safety functions must be handled by external circuits.

Rotor position feedback is generated with 16 signal periods by a capacitive sensor configured as a multi-turn absolute encoder. This encoder retains shaft-position information across multiple revolutions, allowing the controller to recover the axis position after a power interruption without performing a homing cycle. The drive uses a compact 061 frame that supports installation where available machine space is limited. Its plain shaft provides a direct mechanical interface for compatible gearheads, clamping couplings, or timing pulleys. A shaft seal helps prevent lubricant, coolant, and other contaminants from reaching the internal bearing area. The sealed shaft interface is useful in machinery where the motor is installed near moving components or process equipment.