Product Description:

The KMS02.1B-A018-P-D7-ET-ENA-L3-NN-FW is a near-motor servo drive produced by Bosch Rexroth Indramat within the KMS Electronic Drives series. As a decentralized axis amplifier, it mounts close to the motor to shorten power and feedback runs and simplify cabinet layouts. The unit is part of Series 02 and design version 1. In motion-control lines, it conditions DC link energy for high-speed torque loops and supports real-time positioning in robots, packaging stations, and material-handling gantries. Placing the electronics near the axis also helps keep wiring compact on moving machine sections.

During continuous operation at 4 kHz, the drive provides 5.8 A to the motor while drawing a rated input of 7.3 A from the shared DC link. Its internal filter stage works with a DC-bus capacitance of 0.02 mF and stabilizes a link voltage of 750 V DC. Peak demand is supported by a permissible phase current of 18 A and a bypass path that accepts up to 25 A without tripping. The power stage tolerates a dv/dt of 5.00 kV/µs and a short-circuit current of 42 kA rms, while natural convection cooling removes heat. The housing has an IP65 rating that helps block dust and low-pressure water jets during machine operation.

Drive commands pass through the Multi-Ethernet interface, while high-resolution rotor data arrive through the Encoder ACUROlink port, eliminating analog feedback wiring. The integrated safety function includes Safe Torque Off (STO), allowing drive energy to be removed through the safety chain without extra contactors in the power stage. The unit uses a basic performance level that suits distributed axes with standard control requirements. Thermal losses are limited to 50.00 W, and the enclosure's airflow path supports stable junction temperatures when cabinet ambient conditions remain within the allowed range. Because command and feedback traffic use digital links, the drive can support accurate synchronization across distributed machine axes.