KSM02.1B-061C-35N-S1-HG2-ET-SD-D7-NN-FW by Bosch Rexroth Indramat

Bosch Rexroth Indramat manufactures the KSM02.1B-061C-35N-S1-HG2-ET-SD-D7-NN-FW, a motor-integrated servo drive in the KSM Motor Integrated Servo Drives series. This device combines drive electronics, motor feedback, and a synchronous motor in a single housing to support decentralized motion axes. Integrating these components at the machine reduces cabinet wiring and shortens cable routes between the motor and drive electronics. The unit is version 1 of design generation 2 and uses the standard build option with a basic performance level. Its motor has size 061 stator laminations, length code C, and winding code 35. A plain shaft with a factory-installed shaft seal supports direct coupling while helping protect the internal bearings from contaminants.

The power electronics operate from a DC 750 V intermediate circuit, allowing the unit to share a common bus with compatible drives. Thermal management relies on natural convection, so the installation must provide sufficient open space for airflow around the housing. A single hybrid connector carries DC power, the logic supply, fieldbus signals, and brake conductors, reducing the number of separate cable connections. Position feedback is generated by a Hiperface optical encoder that provides 128 signal periods per mechanical revolution. The optical scanning system supplies detailed rotor-position data to the closed control loop for accurate commutation and motion regulation. Its single-turn capability reports absolute position within one mechanical revolution, while applications involving multiple revolutions can use the controller's reference strategy to track the axis position.

Control commands reach the drive through a Multi-Ethernet interface that supports commonly used real-time industrial networks. This communication link carries motion commands, operating status, and diagnostic data between the integrated drive and the higher-level controller. An electrically released brake holds the axis when its winding is de-energized, helping prevent unintended movement during a power interruption. The brake coil operates from a DC 24 V supply delivered through the hybrid cable. Functional safety is provided by the integrated Safe Motion package with SBC, which supports certified stop and speed-monitoring functions without separate safety relays. The sealed, motor-mounted arrangement is suitable for packaging equipment, handling systems, and other automated machines that benefit from distributed drive control and reduced cabinet space.