KSM02.1B-041C-42N-S1-HG2-ET-NN-D7-TO-FW by Bosch Rexroth Indramat

The Bosch Rexroth Indramat KSM02.1B-041C-42N-S1-HG2-ET-NN-D7-TO-FW is a motor-integrated servo drive in the KSM Motor Integrated Servo Drives series. Combining a permanent-magnet servo motor and an inverter within one enclosure, it is intended for decentralized motion control in packaging, material-handling, and assembly equipment. With drive electronics mounted directly at the axis, the unit shortens cable runs and simplifies installation in distributed automation layouts.

Power, feedback, and network lines converge through a hybrid connector, reducing panel wiring to a single plug-in interface. Heat produced by the inverter is removed through natural convection, enabling installation without additional fans. Position feedback travels over the Hiperface protocol, and the sensor delivers 128 signal periods per mechanical revolution for fine interpolation by the controller. The optical sensing system maintains accurate position feedback across temperature changes and in the presence of magnetic fields. Design version 1 is paired with motor size 041, length code C, and winding code 42. Real-time commands are exchanged through a Multi-Ethernet communication interface.

For power distribution through the machine's DC link, the drive accepts a bus voltage of DC 750 V, allowing multiple axes to share energy without separate rectifiers. A single-turn encoder reports the absolute position within one mechanical revolution, reducing the need for a complete homing routine after startup. The electrically released holding brake engages when its coil is not supplied with DC 24 V, securing the shaft during a loss of power. A dedicated shaft seal helps block lubricant migration and protects the bearing area from contaminants. The unit has a Basic performance level and does not include integrated safety technology, making external safety controls necessary when the application requires safety-related motion functions.