Product Description:

The KSM02.1B-041C-42N-M1-HP2-ET-S3-D7-ES-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. It combines a permanent-magnet synchronous motor, power stage, encoder, and network interface inside one enclosure, allowing it to be mounted directly on machinery. In industrial automation, this arrangement reduces cabinet wiring and supports distributed motion axes on packaging machines, assembly stations, and material-handling gantries. By placing the drive electronics at the axis, the unit also helps simplify layouts in modular machines where long motor cables are undesirable.

Electrical power enters through a Hybrid Connector that carries the DC link, brake supply, and fieldbus lines. The drive operates from a bus voltage of DC 750 V, and heat is removed by natural convection, so no fans are required. Master control uses Multi-Ethernet, and the external communication option supports EtherNet/IP, PROFINET, EtherCAT, or SERCOS III without hardware changes. For static load holding, an electrically released brake engages whenever the 24 V coil is de-energized. The motor has size 041, length C, winding code 42, and a basic performance level in series 2. A keyed shaft and an integrated seal protect the bearing system from splash and dust.

Position feedback is handled through the Hiperface interface that links the servo controller to an optical encoder delivering 128 signal periods per revolution. Because the sensor is a Multi-turn absolute device, it tracks up to 4096 shaft turns without batteries, allowing instant position recovery after power loss. This can be useful on indexing and transfer axes that must resume operation without a homing cycle after brief stops. Functional safety is provided by the Safe Motion package, which gives the axis hardware-based speed and position monitoring without a separate safety brake channel. The unit is design version 1, and its motor-integrated format keeps the encoder, power stage, and communication interface within a single housing at the machine axis.