Beckhoff KL3052 2-Channel Loop Powered Terminal Input Module

Beckhoff KL3052 is a two‑channel loop‑powered analog input terminal for Beckhoff Bus Terminal systems that accepts 4–20 mA current signals and converts them to digital values with 12‑bit resolution, transmitted to the controller with galvanic isolation. Each channel is a single‑ended input and the module provides power contacts to supply field transducers via a +24 V power rail, enabling the current loop to be powered from the terminal itself and supporting direct powering of the connected sensors. Run1 and Run2 LEDs indicate the status for each channel; when illuminated, they signal normal operation, while extinguished status can indicate a watchdog timer overflow. As part of the KL3xxx family, the KL3052 ensures electrical isolation between the field current loop and the control side, making it suitable for industrial environments where loop‑powered 4–20 mA sensors need reliable signal input.