KSM02.1B-071C-24N-M1-HG2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-M1-HG2-ET-L3-D7-NN-FW is produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. This motor-integrated servo drive merges a servo motor, encoder, and power electronics into one compact unit, allowing direct mounting on moving axes so control cabinets can be smaller. In automated assembly, packaging, and handling systems, it supplies decentralized motion control while remaining connected to the plant's DC bus and field network.

The drive accepts a supply of DC 750 V, enabling it to share energy with other axes over a common link and reclaim braking power. Heat is removed through natural convection, so no fans or external cooling circuits are required. A single hybrid connector carries DC power, safety wiring, and communication lines, which simplifies installation on modular machine frames. Command and diagnostic data reach the controller by means of Multi-Ethernet; the internal electronics automatically select PROFINET, EtherNet/IP, or EtherCAT according to the network master. Rotor position is relayed through a Hiperface interface, which carries digital position information and electronic nameplate data to the drive's control section.

An electrically released holding brake secures the plain shaft when power is removed and disengages when supplied with DC 24 V. Functional safety is provided by the integrated Safe Torque Off (STO) circuit, which interrupts gate signals to the power stage without affecting auxiliary supplies. The optical encoder delivers 128 signal periods per revolution and stores multi-turn information, supporting absolute feedback after power cycles. A shaft seal protects the internal bearings, and the plain shaft facilitates coupling to gearboxes. The motor has a 071 frame, length code C, and winding code 24. The unit is the standard design option and has Version 1, a basic performance level, and Series 2 classification within the KSM family.