Product Description:

The KMS01.2B-A018-P-D7-SE-ENH-NN-ST-FW is a near-motor servo drive produced by Bosch Rexroth Indramat in the KMS Electronic Drives series. Mounted directly on the machine structure, it supplies regulated three-phase power and closed-loop control to a companion servo motor, enabling compact distributed-axis layouts. The unit combines power electronics and communication functions in one housing, which helps reduce cabinet wiring and keeps decentralized motion systems compact. This arrangement is suited to machine sections where short cable runs and local drive placement help maintain orderly installation.

At the DC link, the drive operates at 750 V DC, feeding an inverter that can output 3 x AC 530 V and deliver up to 18 A per phase. Output frequency is adjustable to 800 Hz for high-speed axes. Command data move over SERCOS (RS422), while motor position is returned through a Hiperface encoder channel for closed-loop operation. A die-cast housing with IP65 sealing allows field mounting, and passive natural convection removes heat without the need for fans. The UL continuous current is limited to 6.0 A, a bypass path carries 25 A during line-contactor overlap, supply lines draw 7.3 A at rated load, and the power stage withstands 42 kA rms short-circuit events.

Control electronics consume only 15.5 W from the 24 V auxiliary supply, while switching losses can reach 50.00 W under rated conditions. That heat is dissipated through the finned housing by natural convection rather than forced airflow. With a mass of 2.40 kg, the drive can be mounted on moving machine members without adding substantial load. The sealed enclosure, short motor leads, and integrated feedback help reduce electromagnetic interference and simplify cable routing. Performance level Basic covers standard motion functions, and this version requires external safety relays because integrated safety is not included.