KSM02.1B-071C-24N-S1-HG0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-071C-24N-S1-HG0-ET-L3-D7-TO-FW is produced by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. By integrating drive electronics directly into the motor housing, the unit supports decentralized servo axes in automated gantries, packaging modules, and small assembly stations where panel space is limited. This arrangement shortens power and feedback cable runs, reduces cabinet wiring, and places motion control close to the driven axis.

The drive operates from a bus voltage of DC 750 V, allowing it to share a common DC link with adjacent axes. Heat is removed through natural convection, so no fans or liquid-cooling circuits are required. A single hybrid connector carries power, DC-link, and communication lines, simplifying cable routing on moving carriages. Functional safety is provided by Safe Torque Off (STO), which disables torque-producing output without disconnecting the common DC supply. Position feedback uses a Hiperface encoder interface that supports absolute position data and incremental tracks for velocity control. The motor has a plain shaft with a factory-installed seal, a motor length of C, and winding code 24 matched to the bus supply.

The feedback device uses an optical scanning method and provides single-turn position data through 128 signal periods, giving the controller detailed angular information for contouring and positioning tasks. Command and diagnostic traffic travels through a Multi-Ethernet port that can be configured for EtherNet/IP, EtherCAT, or PROFINET communication. The multi-Ethernet output coupling supports integration with distributed machine networks while retaining the motor-integrated layout. Frame size 071 provides a compact flange and accommodates the basic-performance winding for applications requiring moderate continuous torque. The motor is supplied without a holding brake, so stationary loads must be retained by drive-applied torque or an external mechanism when necessary. The unit is design version 1 and is suitable for floor-level or gantry-mounted operation where passive cooling and compact cable routing are required.