KSM01.2B-071C-24N-M1-HP2-SE-NN-D7-NN-FW by Bosch Rexroth Indramat

The KSM01.2B-071C-24N-M1-HP2-SE-NN-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the decentralized KSM Motor Integrated Servo Drives series. By combining an AC motor, feedback electronics, and a drive inverter in one housing, it provides a compact axis that simplifies cabinet wiring in automated machines. The unit regulates torque and position directly on the machine frame, making it suitable for packaging stations, small handling modules, and other installations where panel space and cable length must be minimized.

A single hybrid connector carries DC-bus power, control voltage, and network signals so the axis can be installed with one cable assembly. The power section operates from a 750 V DC supply fed by a common converter, allowing energy to be exchanged among multiple axes. Heat generated by the inverter is dissipated through natural convection, eliminating the need for fans. Position feedback is supplied by a Hiperface optical encoder that provides 128 signal periods per revolution and stores absolute multi-turn position data, removing the need for homing after power-up. The drive uses motor size 071, length code C, and winding code 24. Its compact housing supports the Basic performance level for Series 1, design version 2, and the Standard design option.

The shaft is held at rest by an electrically released brake that closes automatically when the control voltage is removed. Coil excitation at 24 V DC releases the rotor during normal operation, allowing the motor to respond to drive commands. Cyclic command, status, and diagnostic data are exchanged through the SERCOS 2 (RS-422) interface, providing deterministic motion control without an additional fieldbus module. Output torque is transmitted through a shaft with a keyway, which provides positive engagement with a compatible coupling or driven component. A shaft seal protects the internal bearings from coolant and dust ingress.