KSM02.1B-061C-61N-S1-HP0-ET-NN-D7-ES-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-S1-HP0-ET-NN-D7-ES-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining a servomotor, power stage, and fieldbus node in one housing, it simplifies decentralized motion axes on packaging, assembly, and material-handling lines. The integrated design reduces the amount of wiring between the control cabinet and the motor while keeping power conversion close to the driven axis. This product performs closed-loop speed and position control directly at the machine frame and communicates with the central controller through a Multi-Ethernet interface.

Electrical power is supplied through a hybrid connector that carries both DC power and signal conductors. Heat is removed by natural convection, so no fans are required for normal operation. The internal inverter operates from a bus voltage of 750 VDC, enabling short motor cables and supporting dynamic torque production. The motor has a frame size of 061, while winding code 61 indicates the electromagnetic configuration used by the drive electronics. These parameters establish the applicable torque constant and nominal current for the integrated motor and inverter. The unit is supplied without a holding brake, reducing rotating mass when mechanical load retention is not required. It uses the Basic performance level and relies on upstream equipment for any required functional safety functions.

Rotor feedback is generated by a Hiperface optical encoder that provides 128 signal periods per mechanical revolution. The encoder has a single-turn configuration, so it retains absolute position within one mechanical revolution. Referencing is required after motion extends beyond the encoder's single-turn position range or after the control system loses its external position record. Output torque is transferred through a shaft with a keyway, providing positive engagement with a compatible coupling or driven component. An included shaft seal protects the bearing area from dust and splashing liquids when the motor is installed outside a separate enclosure. This arrangement supports distributed mounting near the machine axis while limiting the need for long motor power cables and separate feedback wiring.