Product Description:

The KSM02.1B-041C-42N-M1-HG2-ET-L3-D7-AN-FW is manufactured by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. This motor-integrated servo drive combines a permanent-magnet synchronous motor, feedback electronics, and a drive controller in one housing. In packaging, material handling, and small assembly cells, it provides position, velocity, and torque control without requiring a cabinet-mounted inverter. That integrated layout reduces field wiring and helps keep heat-producing power electronics out of the main control cabinet.

The drive accepts a supply bus of DC 750 V and routes power, safety signals, and Ethernet through a single Hybrid Connector. Heat is removed by natural convection, so no fan or liquid-cooling circuit is needed at the mounting point. Position feedback comes from a Hiperface optical encoder with 128 signal periods, allowing the controller to read absolute multi-turn position data at power-up. The motor uses size 041, length C, and winding code 42, which place it in the basic performance class for moderate continuous torque. A plain shaft with a sealing ring helps limit dust or oil ingress, and the unit is design version 1 in series 2.

The housing is the ATEX version, allowing use in areas where combustible dust or gas may be present when the installation follows the applicable protection concept. Real-time control is handled over Multi-Ethernet, so the unit can communicate within EtherNet/IP, PROFINET, or EtherCAT-based systems. For personnel protection, the integrated drive supports Safe Torque Off (STO), which removes motor torque through hardware channels when an emergency stop is triggered. Axis holding during power loss is provided by an electrically released brake powered from the 24 V control supply, and spring force clamps the rotor when that voltage is removed.