KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-ES-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M1-HG0-ET-S3-D7-ES-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat as part of the KSM Motor Integrated Servo Drives series. It combines a size 061 permanent-magnet motor, an inverter stage, and fieldbus electronics in one housing, allowing decentralized axis control on machines that operate from a common DC bus. Designed as a basic-performance device, it supports distributed position or speed control without requiring a separate panel-mounted drive. This integrated arrangement reduces cable length and the amount of equipment required inside the control cabinet.

The drive accepts a bus voltage of 750 VDC, so it can share energy with other converters on the same backbone without an onboard rectifier. Heat is removed through natural convection, eliminating the need for cooling fans in protected machine areas. Power, signal, and safety lines terminate in a single hybrid connector, reducing wiring complexity. Rotor position feedback is delivered through a Hiperface interface, and the feedback disk provides 128 signal periods per revolution for smooth velocity regulation. Communication with the external controller is handled through a Multi-Ethernet port that supports standard industrial Ethernet protocols. This network connection allows the axis to exchange command, status, and diagnostic data with the machine controller.

The encoder uses optical scanning technology and stores position during a power loss with a multi-turn absolute count, eliminating the need for homing after startup. Torque is transmitted through a plain shaft with a shaft seal, which helps limit the entry of coolant and dust around the shaft opening. Functional safety is provided by Safe Motion without SBC, enabling certified stopping and monitoring functions when the drive is paired with a compatible controller. The module is supplied without a holding brake, so stationary load retention must be provided by the motor torque or an external mechanism. It uses winding code 61 and has motor length C. The product is design version 1 within Series 2.