BECKHOFF

BECKHOFF EJ1889 EtherCAT Plug-in Module

SKU EJ1889

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF

  • Product No.: EJ1889

  • Country of origin:Germany

  • Product Type: EtherCAT plug-in module

  • Payment: T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The EJ1889 is a 16-channel EtherCAT plug-in module designed for cost-optimized, modular machine concepts. This digital input terminal facilitates the acquisition of 24 V DC binary control signals from sensors and switches. Unlike standard modules, the EJ1889 features ground switching logic, where a signal "1" is represented by a voltage between 0 and 7 V DC, and a signal "0" corresponds to 18 to 30 V DC. It provides efficient integration into the EtherCAT system via the E-bus, with an internal current consumption of approximately 80 mA. The module is engineered for robustness, featuring 500 V electrical isolation between the E-bus and field potential to ensure signal integrity and protection in industrial environments.

Features

  • 16 digital inputs for high-density signal acquisition
  • Ground switching signal logic
  • Low current consumption (typ. 80 mA) via E-bus
  • Fast signal filtering (typ. 3.0 ms)
  • 500 V electrical isolation (E-bus/field potential)
  • Compact design (approx. 30 g) for space-constrained installations
  • Wide operating temperature range: -25 to +60 Celsius

Applications

  • Modular machine automation and I/O integration
  • Distributed sensor signal acquisition
  • Industrial control panels utilizing ground-switching sensor logic
  • High-density digital signal processing in EtherCAT networks

Technical Specifications

Feature Specification
Manufacturer BECKHOFF
Part Number EJ1889
Number of Inputs 16
Nominal Voltage 24 V DC (-15 %/+20 %)
"0" Signal Voltage 18…30 V
"1" Signal Voltage 0…7 V
Input Current typ. 3 mA
Input Filter typ. 3.0 ms
E-bus Current Consumption typ. 80 mA
Electrical Isolation 500 V (E-bus/field potential)
Operating Temperature -25 to +60 Celsius
Storage Temperature -40 to +85 Celsius
Protection Rating IP20
Weight approx. 30 g
Shipping Weight 2 kg

Installation Guidelines

  • Module Handling: Handle the EJ1889 by its edges to prevent ESD damage to the electronic components.
  • Ground Switching Logic: Note that this module uses ground switching; ensure your field sensors are configured to pull the input to ground (0 V) to trigger a "1" signal.
  • Environment: Ensure the installation area remains free of condensation. While the module supports a wide temperature range, provide adequate ventilation if multiple units are stacked closely.
  • Isolation: The 500 V isolation protects the E-bus from field-side voltage spikes. Ensure proper grounding of the field potential to maintain effective noise immunity according to EN 61000-6-2.

FAQ

What is the signal logic for the EJ1889?

The EJ1889 uses ground switching logic: a '1' signal is 0–7 V DC, and a '0' signal is 18–30 V DC.

How many inputs does this terminal have?

The EJ1889 provides 16 digital input channels.

Does this module require a separate power supply for the E-bus?

No, the module consumes its E-bus power directly from the EtherCAT system (typ. 80 mA).

What is the typical input filter time?

The input filter time is typically 3.0 ms.

View all FAQs →

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  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern
Greyish White
Country of origin
Germany
Power source
DC Power

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