KSM02.1B-041C-42N-M1-HG2-ET-S3-D7-NN-FW by Bosch Rexroth Indramat

The KSM02.1B-041C-42N-M1-HG2-ET-S3-D7-NN-FW is manufactured by Bosch Rexroth Indramat and belongs to the KSM Motor Integrated Servo Drives series. This motor-integrated servo drive combines a permanent-magnet servomotor, a power stage, and motion control electronics in one enclosure, providing decentralized actuation for conveyor sections, pick-and-place heads, or small palletizers. By placing the inverter directly on the motor, the device reduces cabinet heat, shortens encoder lines, and simplifies installation in modular industrial automation layouts that require rapid axis replication.

It receives DC-link power from a DC 750 V bus through a single hybrid connector, which combines power, signal, and brake circuits in one molded fitting. Real-time commands are exchanged over the Multi-Ethernet interface, allowing the unit to communicate through PROFINET, EtherNet/IP, or EtherCAT networks without a hardware change. Accurate rotor feedback comes from a Hiperface encoder that generates 128 signal periods per revolution, supporting precise velocity control. Position data are retained through the encoder's multi-turn absolute capability, eliminating the need for reference moves after shutdowns. For load-holding duties, an integrated electrically released brake clamps the shaft automatically when its control signal is removed.

Thermal energy is dissipated through natural convection, eliminating the need for a cooling fan and supporting installation outside a traditional control cabinet. The brake coil operates from DC 24 V, which is commonly available from machine control power supplies. Safe Motion functionality operates without a separate safety bus controller and supports monitored stopping and speed states. The motor has size 041, length C, a plain shaft, and a fitted shaft seal. The unit uses the Standard design option, design version 1, Series 2 electronics, and winding code 42.