KSM02.1B-061C-61N-M1-HP2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M1-HP2-ET-L3-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. By combining a permanent-magnet servo motor with an inverter and feedback electronics in one housing, it allows the drive to be mounted directly on moving axes while reducing cabinet wiring. The unit provides closed-loop torque and position control for pick-and-place stations, conveyors, and small processing lines in industrial automation.

Its single-cable installation scheme uses a hybrid connector to carry DC power, fieldbus signals, brake lines, and safety contacts. Heat from the embedded power stage is dissipated through natural convection, permitting sealed mounting without fans. Rotor position is measured by a Hiperface encoder, and the optical sensing system delivers 128 signal periods per revolution. Its multi-turn capability retains the absolute position across multiple shaft revolutions, eliminating the need for a homing routine after startup. An electrically released brake engages automatically when the 24-volt supply is removed, and its coil is energized at DC 24 V to release the shaft during motion. The unit uses the standard design option, design version 1, motor winding code 61, and a basic performance classification.

For networked motion, the drive has a Multi-Ethernet port that can be configured through software for SERCOS III, EtherNet/IP, PROFINET, or EtherCAT without hardware changes. Functional safety is provided by Safe Torque Off (STO), which removes torque-producing power through two redundant channels when a safety input is activated. The internal inverter draws power from a shared DC bus rated at DC 750 V. Frame designation 061, length C, and Series 2 provide a compact cylindrical body suited to narrow machine frames. Torque is delivered through a shaft with a keyway, which provides positive engagement with a compatible coupling or driven component. A shaft seal helps block particle ingress around the output interface. The integrated power electronics also reduce the enclosure depth required for distributed servo applications.