Product Description:

The KMS02.1B-A018-P-D7-ET-ENH-L3-WE-FW is produced by Bosch Rexroth Indramat and belongs to the KMS Electronic Drives series. As a near-motor servo drive, it mounts close to the axis it controls, reducing motor cable length and improving electromagnetic compatibility in distributed automation. Within a motion system, it converts DC-bus energy into regulated three-phase output for servomotors and accepts encoder feedback for closed-loop positioning. This layout allows power modules to be distributed throughout a machine instead of relying on a large central cabinet.

The drive maintains a continuous phase current of 5.8 A, giving it enough thermal headroom for steady-state torque production. During dynamic events, it draws a rated input current of 7.3 A from the upstream supply while operating on an internal link of 750 Volt DC. At the motor, this corresponds to an electrical output of 2.2 kW, which suits mid-range axes such as small gantries or indexing tables. Heat generated by semiconductor switching is limited to 50 W, and the housing uses natural convection so no forced-air fans are required. A 0.02 mF DC-bus capacitor smooths voltage ripple, and 17.5 W of control power supports the logic, the Hiperface encoder interface, and the multi-Ethernet communication stack.

For washdown or dust-laden plant environments, the housing carries an IP65 rating, allowing direct mounting on machinery without a secondary enclosure. Peak motion bursts are accommodated by a maximum phase current of 18 A, while a bypass path rated at 25 A supports regenerative braking events. The unit can withstand fault current up to 42000 A rms, matching use with high-capacity upstream protection. Functional safety is integrated through the Safe Torque Off (STO) option, and the 2.5 kg weight helps keep the drive suitable for mounting on moving machine sections.