KSM02.1B-071C-35N-M1-HP2-ET-NN-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-M1-HP2-ET-NN-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat in the KSM Motor Integrated Servo Drives series. By combining a synchronous motor with drive electronics in one housing, the device streamlines distributed automation layouts that require compact, cabinet-free axes. It receives DC power from a common bus and converts it into regulated motion for conveyors, pick-and-place heads, and other coordinated mechanisms on assembly or packaging lines. Locating the inverter near the motor also reduces the amount of separate power and feedback wiring routed through the machine.

The drive operates from a DC 750 V supply and connects directly to a shared DC link. Heat is removed through natural convection, permitting operation without cooling fans or liquid circuits. Control data reach the unit through a Multi-Ethernet port that supports communication through EtherNet/IP, PROFINET, or EtherCAT networks. Rotor position is captured through a Hiperface interface connected to an optical, multi-turn absolute encoder. An electrically released brake powered by DC 24 V holds the shaft against static loads when drive power is removed. The unit has design version 1, a Basic performance level, winding code 35, and motor length C. Integrated safety technology is not included, so any required safety functions must be provided elsewhere in the machine control system.

Power, feedback, and network conductors terminate on a hybrid connector, simplifying installation and supporting a daisy-chain topology. Torque is transmitted through a shaft with a keyway, providing positive engagement with a compatible coupling or driven component. A shaft seal helps prevent dust and fluid from reaching the internal bearings. The optical encoder generates 128 signal periods per revolution and retains position across multiple turns, eliminating the need for homing after a normal shutdown. Frame size 071 provides a compact footprint for machines with limited installation space while maintaining the torque capacity associated with this motor size. The assembly follows Series 2 conventions and uses the TO design option for its installed configuration.