KSM02.1B-061C-61N-M3-HP0-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M3-HP0-ET-L3-D7-NN-FW belongs to the KSM Motor Integrated Servo Drives series manufactured by Bosch Rexroth Indramat. This motor-integrated servo drive combines a permanent-magnet synchronous motor and a drive controller in a single housing, allowing it to be mounted directly on moving axes while reducing cabinet wiring. Within automated packaging, assembly, or material-handling stations, it supplies closed-loop torque and position control while communicating with higher-level controllers over industrial Ethernet networks.

The unit uses a hybrid connector that carries power, feedback, and fieldbus signals through one pluggable interface, simplifying installation. Heat produced by the drive electronics is dissipated by natural convection. No fans or liquid circuits are required, which reduces maintenance requirements. Rotor position data are generated by a Hiperface encoder that uses 16 signal periods per mechanical revolution, providing sufficient resolution for precise velocity regulation. Its capacitive sensing element provides resistance to shock and interference from magnetic fields. The encoder is a multi-turn absolute device, so the servo retains position data after a power loss without external batteries.

Real-time motion commands reach the drive over a Multi-Ethernet interface that supports common industrial protocols. The internal DC link is rated for 750 V DC, matching the shared bus used in Rexroth decentralized architectures. Machine safety is supported by the integrated Safe Torque Off (STO) function, which removes motor torque without disrupting the communication layer. A shaft with a keyway transmits torque to pulleys or couplings, and a shaft seal helps prevent contaminants from entering the motor. The unit is supplied without a holding brake, so an external mechanism must secure loads that could move when power is removed. It uses winding code 61 and has motor size 061 with length C for a basic performance profile. The unit is design version 1 and uses the standard mechanical option set.