KSM02.1B-061C-35N-S1-HP0-ET-SD-D7-NN-FW by Bosch Rexroth Indramat

Bosch Rexroth Indramat produces the KSM02.1B-061C-35N-S1-HP0-ET-SD-D7-NN-FW, a motor-integrated servo drive in the KSM Motor Integrated Servo Drives series. This device belongs to Series 2 and carries Design Version 1 with the Standard option, so its mounting dimensions are consistent across the platform. The integrated package combines motor size 061 with motor length C, and its shaft with a keyway transmits torque directly to couplings or gear stages. With a Basic performance level, the unit decentralizes control by placing the power electronics directly on the axis, reducing cabinet wiring in packaging, material-handling, and assembly systems.

The power stage draws from a 750 V DC intermediate circuit, allowing high peak torque while keeping the required conductor cross-section moderate. All motor power, feedback, and service lines pass through a hybrid connector, which streamlines installation and minimizes the number of sealing surfaces. Heat is removed by natural convection, so no fans are required and acoustic emissions remain low. Command and diagnostic traffic use Multi-Ethernet, enabling direct integration with PROFINET, EtherNet/IP, or EtherCAT control systems. Rotor position data reach the controller through the Hiperface interface. Winding code 35 matches the stator impedance to the specified bus voltage.

Functional safety is provided by Safe Motion with SBC, permitting speed-limited or safely stopped operating states without external contactors. The optical, single-turn encoder delivers 128 signal periods per revolution, providing fine positioning resolution while keeping the data volume low. A shaft seal blocks dust and coolant, allowing the drive to be mounted close to machining areas. The keyed shaft provides positive engagement with compatible couplings and supports direct torque transfer to the connected machine. Because the unit is supplied without a holding brake, drive torque or an external clamp must secure vertical loads when power is removed. The decentralized arrangement also shortens the power and feedback paths between the motor and its integrated control electronics.