KSM02.1B-071C-24N-M3-HG0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

Bosch Rexroth Indramat manufactures the KSM02.1B-071C-24N-M3-HG0-ET-L3-D7-NN-FW integrated servo unit for the KSM Motor Integrated Servo Drives series. As a motor-integrated servo drive, the device combines a permanent-magnet synchronous motor with onboard power electronics to deliver decentralized motion control for packaging machines, pick-and-place gantries, and material-handling axes. Locating the drive directly on the motor housing shortens cable runs and allows axes to be distributed along a machine frame without additional control-cabinet hardware.

The drive accepts a nominal bus supply of DC 750 V, so it can connect to high-power common-DC systems without a separate inverter. Heat is removed entirely by natural convection, eliminating the need for fans and permitting installation in sealed areas. Field wiring is simplified by a hybrid connector that carries power, feedback, and network lines through one plug. Axis coordination uses Multi-Ethernet, which supports several real-time Ethernet fieldbuses through the same port. Servo feedback reaches the controller through Hiperface, enabling the transfer of position data and electronic motor information. The unit uses the Standard design option, design version 1, and Basic performance level. It is supplied without a holding brake, reducing shaft mass for rapid acceleration.

This Series 2 unit uses winding code 24 with a size 071 stator and frame length C, producing torque suited to compact gantry axes. A plain shaft interfaces directly with zero-backlash couplings, while an integral shaft seal helps prevent lubricant loss and protects the motor when the housing is exposed to coolant spray. Position is captured at 16 signal periods per electrical revolution by a capacitive sensor. The feedback device provides multi-turn absolute positioning, allowing the drive to retain the axis position after power is removed. Machine safety is supported by Safe Torque Off (STO), which removes torque-producing energy from the motor without shutting down fieldbus communication.