KSM02.1B-041C-42N-M1-HG0-ET-SD-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-M1-HG0-ET-SD-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining drive electronics with a servomotor in one housing, the unit enables decentralized axis control on packaging machines, handling modules, and other factory automation equipment. It receives DC bus power from a central supply and executes position control loops locally. Torque is delivered directly at the load without requiring a separate cabinet-mounted amplifier, which reduces the amount of wiring between the motor and control cabinet.

Power is supplied through a single cable connected by a hybrid connector, which carries the DC bus and feedback lines. The drive operates from a bus voltage of DC 750 V, providing the internal inverter with sufficient voltage for responsive motion. Heat produced by the electronics is released through natural convection, so fans and liquid cooling circuits are not required. Rotor position and speed are monitored through a Hiperface interface. The optical sensor provides 128 signal periods per mechanical revolution, supporting precise velocity regulation at low speeds. This feedback arrangement allows the integrated controller to monitor motor movement without routing encoder signals to a separate drive amplifier.

The encoder uses a multi-turn absolute design that retains position information across multiple revolutions, eliminating the need for homing after a power cycle. Fieldbus connectivity is provided through Multi-Ethernet output coupling, allowing EtherNet/IP, PROFINET, or EtherCAT to be selected through parameter settings. Mechanical power is transmitted through a plain shaft with a shaft seal, which helps prevent contaminants from reaching the internal components. Functional safety is supported by Safe Motion with SBC, which supervises speed and stopped conditions within the drive. The motor has a C-length housing, a size 041 stator, and winding code 42. It also has a basic performance level and design version 1. The unit is supplied without a holding brake, so an external mechanism or motor torque must secure the load when stationary.