KSM02.1B-041C-42N-M3-HG2-ET-L3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-M3-HG2-ET-L3-D7-NN-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. By combining a servo motor and drive electronics in one housing, it reduces panel space and wiring inside automated machinery. This unit has a Basic performance level and a series index of 2, making it a compact axis solution for coordinated motion in packaging, material-handling, and assembly equipment.

The drive is supplied from a DC 750 V bus, so it connects directly to high-voltage machine power distribution without an intermediate AC rectifier. Power, signals, and safety lines enter through a hybrid connector, which simplifies installation because one plug handles motor power, brake control, STO, and Ethernet lines. Heat is removed by natural convection, so external fans are unnecessary when the required mounting clearances are maintained. The electrically released holding brake operates from a dedicated DC 24 V supply and secures vertical or suspended loads when power is removed. The motor has a size of 041, a length of C, a plain shaft, and a winding code of 42. An integral shaft seal protects the internal bearings when the unit is exposed to lubricants or light washdown.

Position feedback is transmitted through a Hiperface interface that carries absolute multi-turn data with a resolution of 16 signal periods. The sensing element uses a capacitive principle, which maintains accuracy in areas with oil mist or magnetic fields. Machine safety is supported by the integrated Safe Torque Off (STO) channel, which removes drive-generated torque without requiring external contactors. Communication with the motion controller is handled through Multi-Ethernet for real-time command and status exchange. The internal design uses the Standard option and version 1 for operation within the platform.