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

The KSM02.1B-071C-24N-M1-HG2-ET-SD-D7-NN-FW is a motor-integrated servo drive from Bosch Rexroth Indramat in the KSM Motor Integrated Servo Drives series. By combining a synchronous motor and drive electronics in one housing, it reduces cabinet wiring and supports distributed axis control on machines that require compact positioning systems. The motor has a size of 071, a length of C, and winding code 24, which correspond to its electrical and mechanical configuration. It has a basic performance level, belongs to Series 2, and uses the Standard design option with design version 1.

The unit operates from a supply bus of DC 750 V and exchanges power and I/O through a hybrid connector that carries DC power, Ethernet communication, and safety signals in one cable. Heat is removed through natural convection, so the housing does not require a fan or liquid-cooling circuit. Rotor feedback is supplied through a Hiperface interface, allowing the drive electronics to monitor shaft position during controlled motion. The optical encoder produces 128 signal periods per revolution and supports multi-turn absolute position tracking. This feedback arrangement allows the stored shaft position to remain available after a power cycle and supports accurate position, speed, and torque regulation.

An electrically released spring-applied brake holds the plain shaft whenever the drive is disabled, helping prevent drift on vertical or stationary loads. The brake operates at DC 24 V and releases when electrical power is applied. Real-time motion commands travel through Multi-Ethernet ports that support PROFINET, EtherNet/IP, or EtherCAT communication. Integrated Safe Motion with SBC circuitry provides STO, SS1, and SBC functions without requiring external safety relays for those functions. A factory-installed shaft seal limits the entry of coolant and dust at the shaft interface, while the combined power, communication, and safety connection reduces the number of separate cables routed to the axis.