Beckhoff EL3022 EtherCAT Terminal

The Beckhoff EL3022 is a 2-channel analog input terminal designed to acquire current signals in the 4 to 20 mA range. With differential inputs and a 12-bit resolution, the module ensures precise signal conversion and galvanic isolation, making it ideal for industrial current loop measurements.

Each channel includes diagnostic features such as broken wire and overload detection, with corresponding error LEDs for local status feedback. Compact and efficient, the EL3022 is optimized for scalable analog signal acquisition in EtherCAT automation systems.

Technical Specifications

Manufacturer: Beckhoff
Part Number: EL3022 Beckhoff
Product Type: Analog Input Terminal
Input Type: Differential
Number of Inputs: 2
Signal Range: 4…20 mA
Resolution: 12 bit (16-bit representation including sign)
Conversion Time: 0.625 ms (configurable, multiplex)
Measurement Accuracy: < ±0.3% (FSR)
Surge Protection: Up to 35 V

Electrical & Communication

Internal Resistance: Typ. 85 Ω + diode voltage
Common Mode Voltage: Max. 10 V
Input Filter: 1 kHz
Electrical Isolation: 500 V (E-bus/signal voltage)
Current Consumption (E-bus): Typ. 130 mA
Current Consumption (Power Contacts): –
Bit Width in Process Image: Inputs: 8 bytes
Distributed Clocks: Not supported
Diagnostic Functions: Broken wire and overload detection

Mechanical & Mounting

Dimensions (W x H x D): 12 mm x 100 mm x 68 mm
Mounting: DIN rail (EN 60715)
Housing Type: EL-12-8pin / ES-12-8pin
Material: Polycarbonate
Wiring Method: Spring actuation with screwdriver
Connection Cross-Section:
– Solid: 0.08…2.5 mm²
– Stranded: 0.08…2.5 mm²
– Ferrule: 0.14…1.5 mm²
AWG: AWG28…14 (solid/stranded), AWG26…16 (ferrule)
Stripping Length: 8–9 mm
Current Load Power Contacts: Imax: 10 A

Environmental Conditions

Operating Temperature: -25°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 95% RH, non-condensing
Vibration/Shock Resistance: EN 60068-2-6 / EN 60068-2-27
EMC Standards: EN 61000-6-2 / EN 61000-6-4
IP Rating: IP20

Compliance & Approvals

Certifications: CE, CCC, UL, ATEX, IECEx
ATEX Marking: II 3 G Ex ec IIC T4 Gc
IECEx Marking: Ex ec IIC T4 Gc

Key Features

✅ 2 Differential Analog Inputs: Measure 4–20 mA current signals with high accuracy.

✅ Compact 12 mm Housing: Saves cabinet space in dense installations.

✅ Diagnostic Monitoring: Detects overloads and open circuits.

✅ Fast Signal Conversion: 0.625 ms configurable conversion time.

✅ Electrically Isolated: 500 V isolation ensures safe signal separation.

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Perfect for process control, current loop monitoring, and compact I/O design, this EtherCAT analog input terminal ensures reliable 4–20 mA signal acquisition with industrial robustness.

Contact us today for expert advice or quantity discounts.