BECKHOFF EL1872 EtherCAT Terminal

The EL1872 is a 16-channel digital input EtherCAT Terminal engineered by BECKHOFF for the acquisition of 24 V DC binary control signals. This high-density module features a flat-ribbon cable connection, facilitating streamlined signal distribution in compact industrial automation systems. With an input filter time of typ. 10 µs, the EL1872 ensures fast signal response, while its support for Type 1/3 inputs according to EN 61131-2 makes it highly compatible with standard sensor outputs.

Features

• 16 digital input channels in a compact 12 mm wide housing
• Flat-ribbon cable connection for efficient wiring
• Input signal processing with a filter time of typ. 10 µs
• Designed for 24 V DC systems
• Electrical isolation of 500 V between E-bus and field potential
• Integrated signal LEDs for status indication
• DIN rail mounting with double slot and key connection for side-by-side assembly

Applications

• High-density digital signal acquisition in PLC systems
• Distributed control systems using EtherCAT
• Machine control and industrial automation
• Sensor and switch status monitoring in space-constrained enclosures

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mount the module onto a 35 mm DIN rail (EN 60715) using the integrated lock mechanism.
• Utilize the double slot and key connection for secure side-by-side mounting with other EtherCAT terminals.
• Connect signals using standard AWG 28 flat-ribbon cables with a 1.27 mm spacing.
• Ensure the ambient operating temperature remains within the specified 0 to +55 degC range.
• Use appropriate labeling from the BZxxx series to document terminal connections.
• Maintain IP20 protection by installing the module within a suitable industrial enclosure.

Compliance and Certifications

• CE
• UL
• ATEX: II 3 G Ex nA IIC T4 Gc