BECKHOFF EL3602-0020 EtherCAT Terminal 2-Channel Analog Input Module

Description

Precision measurement tasks require stable, high-resolution data acquisition, which the EL3602-0020 analog input terminal delivers. This high-precision module processes differential voltage signals across parameterizable ranges of -10 to +10 V, -5 to +5 V, -2.5 to +2.5 V, and -1.25 to +1.25 V. Offering an integrated 24-bit resolution (including sign) and 500 V electrical isolation between the E-bus and the signal channels, this EtherCAT terminal ensures minimal noise interference and exceptional signal integrity in demanding industrial setups.

Every unit is factory calibrated, enabling high-accuracy performance without immediate field calibration. Built for the Beckhoff EtherCAT system architecture, the module interfaces seamlessly via the E-bus backplane, supporting versatile PLC and distributed control topologies across heavy industries, automation cells, and advanced test benches.

Features

• Two independent differential analog inputs with high-accuracy factory calibration.
• Parameterizable input voltage ranges to accommodate diverse sensor types.
• Extremely high 24-bit resolution for micro-volt level signal acquisition.
• Integrated limit value monitoring and selectable filter settings.
• E-bus powered with 190 mA typical current consumption.
• Differential technology with an input filter limit frequency of 3 kHz.

Applications

• Power generation monitoring and turbine testing
• High-precision force, weight, and torque measurement systems
• Oil and gas refinery telemetry and process automation
• Research and development test benches requiring high-resolution data logging

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount vertically or horizontally on standard 35 mm DIN rail (conforming to EN 60715) with lock mechanism.
• Ensure double slot and key connection is fully engaged when mounting terminals side-by-side.
• To optimize noise immunity for high-precision 24-bit measurements, use shielded, twisted-pair cabling for all differential signal lines.
• Maintain appropriate ventilation clearance in the cabinet to adhere to the 0 to +50 degC operating temperature limits.

Compliance and Certifications

• CE
• UL
• ATEX: II 3 G Ex nA IIC T4 Gc
• EMC Immunity/Emission: EN 61000-6-2 / EN 61000-6-4
• Vibration/Shock Resistance: EN 60068-2-6 / EN 60068-2-27