EK1914

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The EK1914 coupler by Beckhoff features EtherCAT specifications with both standard and safety I/Os. As a part of the EK EtherCAT Coupler Series, it supports 1-/2-wire connection technology and 6 digital outputs, with 2 of them being fail-safe. This device includes cross-circuit detection.

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Product Description:

A flexible EtherCAT coupler designed for industrial automation applications is the EK1914 by Beckhoff. This small design seamlessly combines standard and safety I/Os as part of the EK EtherCAT Coupler family. In contemporary automation systems, this integration is essential since both routine operations and safety-critical features must coexist and effectively interact. Support for the 1-/2-wire connection technique is one of the EK1914's primary characteristics. This technique enables the transmission of both power and data via a single pair of wires, simplifying wiring and lowering installation costs. In situations where space is at a premium or where wiring complexity must be kept to a minimum, this is especially advantageous. Furthermore, the EK1914 has two fail-safe six digital outputs capabilities. In order to protect people and property in the case of a malfunction, these fail-safe outputs are made to fall back to a safe condition.

A vital safety feature that helps guard against harm to the device and any connected equipment is cross-circuit detection, which is also included in the EK1914. Cross-circuit detection keeps an eye on the output channels to look for short circuits or unexpected connections. The gadget can promptly stop the impacted output in the case of a cross-circuit, averting certain risks like electrical fires or overheating. The automation system is more dependable and secure thanks to this feature. Individual input channel activation is possible for testing with the EK1914. Because of this capability, technicians may independently check each input channel's operation, guaranteeing the system's integrity.

The automation setup's overall resilience and reliability are enhanced by this fine-grained testing. The given values for the "Max. Output Current Per Standard Output" and "Max. Output Current Per Safe Output" are both 0.5 A. This shows the highest electrical current that each output is capable of safely handling. Overheating, gadget damage, or even electrical fires might result from going above this limit. For safe and dependable functioning, it is thus essential to abide by these current restrictions. For clients' peace of mind and protection against any flaws, Wake Industrial provides a one-year warranty on the EK1914.

Connection Technology
1-/2-wire
Cross-circuit Detection
Yes
Evaluation Channels
1-channel vs. 2-channel
Input Channel Testing
Individually activatable
Integrated I/os
Standard and safety
Max. Output Current Per Safe Output
0.5 A
Max. Output Current Per Standard Output
0.5 A
Number Of Inputs
6 digital inputs, 2 of which are fail-safe inputs
Number Of Outputs
6 digital outputs, 2 of which are fail-safe outputs
Power Contact
+24 V / 0 V
Safe Inputs
2
Safe Outputs
2
Specification
EtherCAT Coupler with standard and safety I/Os
Standard Outputs
Activatable with integrated ANDing with a safe output signal
Symptom / LED pattern Likely root cause First corrective action
DC LED dark – all LEDs off 24 V DC absent or < 22 V Measure supply at power contacts; replace blown fuse or tighten spring-clamp plug 
RUN LED off, ERR LED red immediately after power-up Hardware self-test failed Power-cycle ≥ 10 s; if state returns, replace coupler
RUN LED 2 Hz green (stuck in PRE-OP) Master never downloaded configuration In TwinCAT/TIA download & activate the EL-terminal map, then restart scan 
RUN LED 1 Hz green (SAFE-OP) PDO length/order mismatch Check terminal order vs. PLC config, correct, and restart EtherCAT 
Diag 2 LED steady red External supply or cross-circuit detected on safe channels Remove stray 24 V, check wiring, then reboot – LED must go out 
Diag 2 LED blink-code 2-1-1-1 / 3-1-1-1 Over-temperature on µC1 / µC2 Keep cabinet ≤ 55 °C, clear airflow, leave ≥ 30 mm headroom 
Diag 1 LED stays dark FSoE (TwinSAFE) communication not running Check TwinSAFE address & wiring; leave Reset state to start FSoE 
CF LED red CompactFlash® card missing or CRC error Reseat card; if red after reboot, clone & replace CF card 
LINK/ACT LEDs dark, master logs “Lost slave” Broken RJ-45 or switch port down Swap cable, clean contacts, verify 100 Mb link & shielding (bresimar.pt)
ERR LED triple-flash (Hot-Connect fault) Duplicate rotary ID in the segment Give every EK1914/EK1101-family coupler a unique ID switch setting 
Model Integrated I/O (standard / safe) Special feature(s) Hot Connect Typical spot to use it
EK1914 4 DI + 4 DO / 2 FS-DI + 2 FS-DO Compact TwinSAFE coupler with FSoE Yes Small cells needing a handful of safe & standard signals 
EK1814 4 DI + 4 DO / — Low-cost standard I/O coupler No Simple machines with limited I/O 
EK1818 8 DI + 4 DO / — “Preferred type” – more inputs No Sensor-heavy conveyors or packaging lines 
EK1828 4 DI + 8 DO / — Output-heavy variant No Valve blocks, indicator lamps, solenoids 
EK1101-0080 none / — Fast-Hot-Connect coupler with ID switch Yes (FHC) Robot end-effectors that dock/undock frequently 
EK1300 none / — EtherCAT-P coupler (power + data in one M8 cable) Yes Single-cable sensor/actuator islands, retrofit panels 
LED / code Meaning
DC LED dark 24 V absent / < 22 V
RUN LED off + ERR red at power-up HW self-test fail (INIT)
RUN 2 Hz green (PRE-OP forever) PLC never sent configuration
RUN 1 Hz green (SAFE-OP) PDO size/order mismatch
ERR 1-flash red EEPROM / firmware CRC error
ERR 3-flash red Duplicate Hot-Connect ID
Diag 2 LED steady red External 24 V on safe channel / cross-circuit
Diag 2 blink 2-1-1-1 µC 1 over-temperature
Diag 2 blink 3-1-1-1 µC 2 over-temperature
CF LED red CompactFlash missing / CRC error

Frequently Asked Questions about EK1914:

Q: What is the EK1914, and what is its primary function in industrial automation?

A: The EK1914 is an EtherCAT coupler developed by Beckhoff, designed to manage both standard and safety Input/Outputs (I/Os) within an industrial automation environment. It integrates these I/Os in a compact structure that supports advanced communication and control. This device belongs to the EK EtherCAT Coupler Series and provides critical support for safety and standard operations within automation systems, helping manage both routine and safety-critical tasks.

Q: How many digital outputs does the EK1914 offer, and what makes some of them fail-safe?

A: The EK1914 offers a total of six digital outputs, with two of them specifically designed as fail-safe. These fail-safe outputs are designed to enter a safe state in the event of a fault, thus protecting the system and personnel. This feature is critical in applications where safety is paramount, as it helps prevent accidents and equipment damage by ensuring outputs switch to a safe mode if a fault is detected.

Q: Can you explain the cross-circuit detection feature of the EK1914?

A: Cross-circuit detection is a safety feature of the EK1914 that monitors for unintended electrical connections or short circuits in the output channels. If such a cross-circuit is detected, the EK1914 can isolate and shut down the affected output, which helps prevent potential hazards like overheating or electrical fires. This feature enhances the safety and reliability of the automation system by allowing for proactive response to potential issues.

Q: What are the specifications for output current, and why are they important?

A: The EK1914 specifies a maximum output current of 0.5 A per standard output and 0.5 A per fail-safe output. Adhering to these current limits is crucial for safe operation, as exceeding them could lead to overheating, device damage, or electrical fires. These current restrictions ensure that the EK1914 operates safely and reliably, preserving both the device and connected equipment.

Q: What kind of connection technology does the EK1914 support?

A: The EK1914 supports 1-/2-wire connection technology, which simplifies wiring by allowing both power and data to be transmitted over a single pair of wires. This setup reduces installation costs and wiring complexity, making it ideal for industrial environments where space is limited or where efficient cabling is required. The technology helps streamline setup and improve overall system efficiency.


Internal Product Review

  • ‘‘The compact design integrates standard and safety I/Os for versatile use. It offers six digital outputs, including two fail-safe outputs for enhanced safety functionality. It supports 1-/2-wire connection technology and features cross-circuit detection for improved reliability.’’

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