KL3054-0050 Beckhoff
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The KL3054-0050 is an analog input module made by Beckhoff in the KL Analog Input Modules series. It features four single-ended current inputs with 12-bit resolution and an input data width of 4 by 16 bits. This module has an IP20 protection rating, measures 100 mm in height, 12 mm in width, and 68 mm in depth.
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Product Description:
The KL3054-0050 is a four-channel analog input terminal produced by Beckhoff and included in the KL Analog Input Modules series. Designed for DIN-rail mounting alongside a Bus Coupler or Embedded PC, the unit converts 0 to 20 mA sensor currents into binary data that the automation controller can process. By providing galvanic isolation between field wiring and the EtherCAT or K-bus backplane, the module helps protect upstream electronics and allows decentralized acquisition of process variables such as pressure, flow, or valve position in industrial plants.
Each channel accepts a single-ended loop, so the module offers 4 inputs overall. The resulting telegram delivers four 16-bit words of user data, giving each channel a word that contains status and measured value. Within that word, the raw reading has a 12-bit resolution, which yields 4,096 discrete steps across the 0 to 20 mA span for accurate scaling in the PLC. The terminal is built for current signals and provides an internal resistance of 80 Ω, so loop voltage drop remains low. Sensor supply can be wired as a 2-wire loop, and a diode drop of 0.7 V protects against reverse polarity. Transient events up to 35 V maximum on an input are tolerated without damage.
The housing measures 68 mm deep, 12 mm wide, and 100 mm tall, allowing the channel density expected in compact control panels. A printed coding key identifies its single-ended topology so mixed voltage modules are not confused during installation. The housing has an ingress protection rating of IP20, matching typical cabinet interiors where convection cooling is sufficient. The module latches onto the Bus Coupler through a spring terminal connection that maintains reliable contact during machine vibration, and field conductors are tightened with screw clamps for secure, long-term service.
