Product Description:

The KSM02.1B-071C-35N-S1-HG0-ET-L3-D7-NN-FW is a motor-integrated servo drive from Bosch Rexroth Indramat in the KSM Motor Integrated Servo Drives series. Released as design version 1, it combines a permanent-magnet synchronous motor and a drive controller in one enclosure, minimizing cabinet space and wiring. The device supports decentralized mounting close to the working axis, making it suitable for indexing tables, carton erectors, and similar automation modules that benefit from compact drives. By placing the drive electronics at the axis, the unit reduces the amount of cabinet-side hardware needed in distributed motion systems. This integrated layout also shortens the connection path between the power stage and the motor.

The unit operates from a shared DC bus rated at DC 750 V, allowing high-power distribution without individual rectifiers. Power, feedback, and safety lines are bundled through a hybrid connector, so only one plug is needed at the drive. Thermal losses are removed through natural convection, so no fans are fitted and airflow management stays simple. A shared bus arrangement also supports centralized power distribution across multiple axes in the same machine. Rotor position is monitored by a single-turn optical encoder that communicates via Hiperface; its optical scanning produces 128 signal periods per revolution, providing sufficient resolution for precise velocity and position control in mid-speed applications.

Machine communication uses a Multi-Ethernet interface that can be configured for SERCOS III, EtherNet/IP, or PROFINET without hardware changes. Integrated functional safety is delivered through Safe Torque Off (STO), which disables the power stage through certified inputs when required. The drive has a frame size of 071 and a winding code of 35. The plain shaft is protected by a shaft seal, and because the unit has no holding brake, loads must be secured externally at standstill. The shaft seal helps protect the output end from contamination in routine industrial service. Motor length C keeps the housing compact for decentralized axis placement.