KSM02.1B-061C-61N-M3-HG0-ET-L3-D7-TO-FW by Bosch Rexroth Indramat

The KSM02.1B-061C-61N-M3-HG0-ET-L3-D7-TO-FW is a motor-integrated servo drive manufactured by Bosch Rexroth Indramat and assigned to the KSM Motor Integrated Servo Drives series. It combines a drive amplifier, motion control electronics, and a 061-frame synchronous motor in one compact enclosure, reducing cabinet space and cable runs in decentralized automation. The device modulates current for axis positioning tasks and is intended for machines that require rapid installation with minimal peripheral hardware.

The power stage is supplied from a DC 750 V link, allowing the unit to share a high-energy bus with other drives in the line. All power, signal, and brake conductors terminate on a single hybrid connector, which simplifies daisy-chain wiring along the machine backbone. Heat is removed solely by natural convection; this passive method avoids fans and reduces maintenance when the drive is mounted inside tight mechanical compartments. Rotor position is acquired through a Hiperface interface, and the built-in sensor provides 16 signal periods per mechanical revolution for closed-loop regulation. The encoder delivers multi-turn absolute position data, allowing the control system to restore the axis position after a power cycle without external batteries.

Network traffic and drive diagnostics are exchanged over a Multi-Ethernet port that supports PROFINET, EtherNet/IP, and EtherCAT without hardware changes. The position sensor uses capacitive technology, providing resistance to dust and magnetic fields commonly found near production tooling. Emergency shutdown is handled by the integrated Safe Torque Off (STO) channel, which disables the gate drives and provides a basic level of safety performance. Mechanical output is delivered through a plain shaft with an installed shaft seal that helps prevent lubricant from entering the stator cavity. The M3 design option does not include a holding brake, so external clamping or drive torque must secure vertical loads when the axis is unpowered.