KSM02.1B-041C-42N-S1-HG0-ET-S3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-S1-HG0-ET-S3-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining a permanent-magnet servo motor with onboard power electronics, it mounts directly on machinery and removes the need for separate cabinet-mounted drives. The unit supplies closed-loop speed and position control for coordinated axes in automated packaging, assembly, and material-handling equipment. Electrical energy enters the unit through a shared DC link rated at DC 750 V.

Power, signal, and safety lines run through a single hybrid connector, reducing installation time and cable bulk. Heat generated by the inverter passes into the ambient air through natural convection, so no forced-air components are required. The position loop uses a Hiperface interface to transfer absolute position data from the integrated encoder. The sensor provides 128 signal periods per revolution and uses optical scanning for accurate feedback. Because no holding brake is fitted, an external clamping device must secure the load when power is removed. A shaft seal helps prevent contaminants from entering the motor housing. Safe Motion functions are available without an SBC, and the drive has a Basic performance level.

The actuator follows the Series 2 mechanical layout and uses motor size 041 with length code C, providing a compact form for moderate-inertia loads. A single-turn encoder stores the absolute position within one revolution, supporting applications such as indexing tables and servo presses. Torque is transferred through a plain shaft, allowing direct connection to gears, pulleys, or suitable clamping couplings. Winding code 42 matches the motor's electrical characteristics to the shared DC bus. The unit is design version 1 and includes an output coupling that supports multiple real-time Ethernet protocols for synchronized motion networks.