BECKHOFF KL1889 Bus Terminal Series HD Bus Terminal

Description

Engineered for high-density space conservation in control cabinets, the BECKHOFF KL1889 is a High-Density (HD) Bus Terminal featuring sixteen digital inputs in a compact 12 mm housing width. Operating with negative switching (sink) logic, this module incorporates 1-wire connection technology, allowing direct connection of sensors and signals to the process image without excessive terminal blocks. Designed for seamless integration into K-bus networks, the KL1889 enables efficient signal acquisition in restricted spaces while simplifying wiring and minimizing hardware requirements.

Features

• Provides 16 digital inputs within a compact 12 mm mechanical footprint.
• Utilizes negative switching (sink) logic configuration.
• Employs 1-wire connection technology with direct plug-in connection for solid conductors.
• Tool-free termination for solid conductors; simple spring actuation by screwdriver for stranded wires and ferrules.
• Integrated hardware input filter (typ. 3.0 ms) to suppress line bounce and noise.
• Complete 500 V galvanic isolation between the internal K-bus and the field potential.
• Address-free configuration for immediate plug-and-play installation within the Bus Coupler process image.

Applications

• Space-constrained decentralized control systems and distribution cabinets.
• Automated assembly systems, packaging machinery, and material handling lines.
• Sensor signal concentration in industrial process automation.
• General manufacturing and PLC I/O expansion environments.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the system power supply is completely disconnected before mounting or removing the terminal.
• Mount the module onto a standard 35 mm DIN rail (EN 60715) with vertical or horizontal mounting orientation as required.
• Ensure the side locking mechanism of the bus terminal engages correctly with adjacent terminals to secure reliable K-bus and power contact transmission.
• Utilize appropriate shielding and grounding procedures for sensor lines to prevent electromagnetic interference from distorting input signals.

Compliance and Certifications

• CE
• UL
• Ex
• GL