KSM02.1B-041C-42N-M3-HP0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-M3-HP0-ET-L3-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet motor, drive electronics, and a fieldbus interface in one enclosure, allowing direct installation on moving axes while reducing cabinet wiring. The unit has a Basic performance level, belongs to Series 2, and uses design version 1. Frame code 041 and motor length C provide a compact configuration for moderate-torque duties in distributed automation systems such as pick-and-place gantries and conveyor zones.

The drive operates from a 750 V DC supply connected to a common bus and dissipates heat through natural convection, eliminating the need for forced-air components. Power and feedback signals pass through a single hybrid connector, simplifying daisy-chain installation along a machine frame. Rotor position is detected by a Hiperface capacitive encoder that provides 16 signal periods per revolution. Its multi-turn absolute position data allow the axis to retain position information across power cycles and support startup without a homing movement. The controller also includes Safe Torque Off (STO), which interrupts the power stage so the shaft cannot generate torque during an emergency stop or service procedure.

Network integration is handled through Multi-Ethernet ports that support Sercos III, EtherCAT, PROFINET IO, and EtherNet/IP without hardware changes. This interface provides real-time communication with compatible motion controllers and supports the Multi-Ethernet output coupling option. The mechanical output uses a shaft with a keyway and shaft seal, allowing positive engagement with a coupling while helping to limit the entry of dust or lubricants. The motor is supplied without a holding brake, so an external mechanism must secure vertical or gravity-loaded axes when power is removed. Winding code 42 identifies the winding arrangement paired with the embedded inverter. The C-length motor stack helps keep the assembly compact and supports responsive operation during short-cycle positioning tasks.