KSM02.1B-071C-35N-S1-HG0-ET-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-35N-S1-HG0-ET-NN-D7-NN-FW is produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. As a motor-integrated servo drive, it combines a permanent-magnet synchronous motor, position feedback, and power electronics in one enclosure, allowing individual machine axes to be mounted directly on the machine frame without a centralized drive cabinet. This arrangement simplifies wiring and shortens response times in packaging, material-handling, and general automation cells. The integrated design also reduces the distance between the control electronics and motor, supporting compact machine layouts with distributed motion axes.

The unit is supplied by a 750 V DC intermediate circuit and receives power and control lines through a single hybrid connector. Heat produced by the internal inverter is removed through natural convection, so no fan or external liquid-cooling loop is required. Rotor position is measured by an optical encoder with a Hiperface interface. The encoder delivers 128 signal periods per mechanical revolution, providing detailed feedback for velocity and position control. Its single-turn absolute capability retains the shaft position within one mechanical revolution, while the series 2 encoder electronics process the feedback signals. The C-length motor body provides the active stack length needed to produce the rated torque for applications using the basic performance level.

Host controllers exchange cyclic data with the drive through Multi-Ethernet communication, which supports SERCOS III, EtherNet/IP, or PROFINET according to the selected network configuration. Mechanical power is transmitted through a plain shaft with a shaft seal, protecting the internal bearings from dust and fluids. Motor size 071 provides the mounting interface for this compact drive, while winding code 35 matches the coil impedance to the KSM02 inverter stage. The motor does not include a holding brake, so an external clamping device must secure vertical loads when power is removed. The unit uses the standard design option, design version 1, and the basic performance level.