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

The KSM02.1B-041C-42N-M1-HG0-ET-SD-D7-NN-FW belongs to the KSM Motor Integrated Servo Drives series from Bosch Rexroth Indramat. As a motor-integrated servo drive, it combines drive electronics with a permanent-magnet synchronous motor, eliminating the need for a separate panel-mounted inverter. This configuration reduces wiring in distributed automation and provides a compact axis powered through DC bus links.

The drive accepts a supply of DC 750 V, allowing it to share a common bus in modular machines. Heat is removed through natural convection, so no fans are mounted on the housing. Power, signal, and safety conductors reach the device through a hybrid connector that reduces the number of separate cable connections. Rotor position is measured by an optical encoder with a Hiperface interface. The encoder provides 128 signal periods per mechanical revolution and retains position information across power cycles through a multi-turn absolute counter. Because the unit does not include a holding brake, external clamping or continuous motor torque must secure vertical loads. The unit is design version 1 and series 2, with the standard option set.

Fieldbus traffic is routed through a Multi-Ethernet port that supports protocols such as EtherNet/IP or PROFINET without requiring a hardware change. Integrated diagnostics and shutdown paths meet Safe Motion with SBC requirements, allowing safety PLCs to activate monitored speed or torque-off states. The motor uses a 041 frame size with length code C, while its electromagnetic characteristics correspond to winding code 42. A plain shaft supports direct coupling to helical gears or belt pulleys, and a shaft seal helps protect the internal bearings from contaminants. The basic performance level is suitable for indexing tables, packaging axes, and other automated stations that require decentralized position control. Its integrated drive arrangement also reduces the amount of drive equipment required inside the control cabinet while keeping motor regulation close to the axis.