Beckhoff ELX2002 EtherCAT Terminal

Product Overview

The ELX2002 (ELX2002) is a 2-channel digital output terminal engineered for hazardous area applications, specifically designed to interface directly with intrinsically safe (Ex i) field devices. Integrated into the Beckhoff EtherCAT terminal system, this module provides reliable 24 V DC signal switching for ohmic, inductive, and capacitive loads. By consolidating complex safety requirements into a compact, 12 mm wide housing, the ELX2002 enables high-density automation architectures in industries such as chemical processing, oil and gas, and pharmaceutical manufacturing. It significantly simplifies the integration of intrinsically safe sensors and actuators while maintaining the high-speed synchronization and deterministic performance characteristic of EtherCAT networks.

Technical Configuration

The ELX2002 hardware architecture is optimized for intrinsically safe field circuits, featuring robust galvanic isolation and current-limited outputs to meet global hazardous area standards. Each of the two channels supports a maximum output current of 45 mA, with a total channel sum of 80 mA. The module requires a 24 V DC supply via the power contacts, typically utilized in conjunction with the ELX9560 power supply for safe operation. Built with a durable polycarbonate housing, the terminal supports rapid installation on standard 35 mm DIN rails. It features convenient spring-actuation terminals for reliable wire retention, accommodating a wide range of conductor cross-sections from 0.08 mm² to 2.5 mm² to ensure secure connectivity in harsh industrial environments.

Technical Specifications

FAQs

Is the ELX2002 suitable for direct connection to non-intrinsically safe devices?

No. The ELX2002 is designed exclusively for intrinsically safe (Ex i) field devices located in hazardous areas. Connecting non-intrinsically safe loads will violate the safety integrity of the Ex i circuit.

What is the required power supply configuration for this terminal?

The electronics are supplied via the EtherCAT power contacts. For proper operation of the Ex i circuits, you must utilize a compatible power supply such as the ELX9560 to ensure the required voltage and safety standards are met.

Can I mount this terminal alongside standard non-Ex terminals?

Yes, the terminal supports side-by-side mounting with other EtherCAT terminals using the double slot and key connection, but you must ensure that all relevant safety separation distances and hazardous area zoning requirements are strictly maintained in your cabinet layout.

How do I verify the wiring connection status during commissioning?

The terminal is equipped with signal LEDs on the front housing. These provide immediate visual feedback regarding the status of the output channels and the power supply, facilitating rapid diagnostics during machine setup.

Installation Guidelines and Best Practices

• Hazardous Area Compliance: Ensure that all wiring in the hazardous zone follows local electrical codes for intrinsically safe circuits. Keep Ex i wiring strictly separated from non-Ex i wiring to prevent induced interference or fault-current coupling.

• Wiring Termination: Use a standard screwdriver for the spring-actuation terminals. For stranded wires, the use of ferrules is strongly recommended to ensure a gas-tight connection and to prevent individual wire strands from causing short circuits or poor contact resistance.

• Environmental Management: While the terminal is rated for operation up to 60 deg C, avoid installing it in locations exposed to direct sunlight or near heat-radiating components. Ensure the cabinet provides adequate ventilation to keep the internal ambient temperature within the specified operating range to prevent performance degradation or premature component aging.