Machine Safety Solution – Beckhoff EK1914 | TwinSAFE EtherCAT Series
Where This Product Is Used
The Beckhoff EK1914 is a TwinSAFE EtherCAT Safety Bus Coupler designed for safety-critical automation environments. Engineers deploy this module wherever functional safety up to SIL 3 (IEC 62061) and Performance Level e (ISO 13849-1) is mandatory:
- Collaborative Robot (Cobot) Cells — Safe stop (STO/SS1) integration with KUKA, FANUC, and Universal Robots via EtherCAT FSoE
- Automotive Body-in-White Lines — Emergency-stop circuits, light curtain monitoring, and two-hand control panels on stamping and welding stations
- Packaging Machinery — Guard door interlocking and safety mat monitoring on high-speed form-fill-seal lines
- Semiconductor Fab Equipment — Safe speed monitoring and door-lock control on wafer-handling robots
- Wind Turbine Nacelles — Pitch-control safety loops and rotor-lock monitoring in IEC 61400-compliant systems
- Food & Beverage Processing — Hygienic-area E-stop and safety relay replacement on CIP-compatible lines
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | EK1914 |
| Series | TwinSAFE / EtherCAT Coupler |
| Safe Digital Inputs | 4 × FSoE safe digital inputs (24 V DC) |
| Safe Digital Outputs | 4 × FSoE safe digital outputs (24 V DC, 0.5 A) |
| Safety Protocol | FSoE (Fail Safe over EtherCAT) |
| Safety Integrity Level | SIL 3 per IEC 62061 |
| Performance Level | PLe / Cat. 4 per ISO 13849-1 |
| EtherCAT Interface | 2 × RJ45 (100BASE-TX, daisy-chain) |
| Supply Voltage | 24 V DC (−15 % / +20 %) |
| Power Consumption | ≤ 2.5 W (logic); output load separate |
| Housing Width | 44 mm (DIN EN 50022 rail) |
| Operating Temperature | 0 °C … +55 °C |
| Storage Temperature | −25 °C … +85 °C |
| Protection Rating | IP 20 |
| Weight | approx. 150 g |
| Certifications | CE, UL, cULus, TÜV SÜD |
Why Engineers Specify This Model
- Integrated Safety + Standard I/O in One Coupler — Eliminates a separate safety PLC node; the EK1914 bridges standard EtherCAT segments and the TwinSAFE logic layer simultaneously.
- FSoE Black-Channel Transport — Safety telegrams ride over standard EtherCAT infrastructure, reducing wiring cost versus hardwired relay matrices by up to 60 %.
- TwinCAT 3 Safety Editor Integration — Drag-and-drop function blocks (FB_SafeEmergencyStop, FB_SafeDoor) cut safety-application programming time significantly.
- Compact 44 mm Footprint — Fits dense control-cabinet layouts without sacrificing channel count.
- Hot-Connect Capable — Supports modular machine concepts where safety segments can be added or removed without full system restart.
Complete System Bill of Materials
A typical EK1914-based safety node includes the following Beckhoff components:
- EK1914 — TwinSAFE EtherCAT Safety Bus Coupler (this item)
- EL1904 — 4-channel TwinSAFE digital input terminal (for additional safe inputs)
- EL2904 — 4-channel TwinSAFE digital output terminal (for additional safe outputs)
- EL6910 — TwinSAFE Logic terminal (for complex safety programs)
- CX5130 / CX5140 — Embedded PC running TwinCAT 3 with TE9000 Safety Editor
- EK1100 — Standard EtherCAT Bus Coupler (for non-safe I/O segments)
- ZK1090-3191-xxxx — EtherCAT patch cables (pre-assembled, various lengths)
Compliance & Industry Standards
- IEC 62061 — Functional safety of machinery (SIL 3 rated)
- ISO 13849-1 — Safety-related parts of control systems (PLe, Cat. 4)
- IEC 61508 — Functional safety of E/E/PE safety-related systems
- IEC 61784-3 — Safety communications profiles (FSoE)
- EN 60068-2 — Environmental testing (vibration, shock, temperature)
- UL 508 / UL 61010-1 — Industrial control equipment (North America)
- CE Marking — EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
Quality Assurance & Sourcing
Konmask.com sources the EK1914 exclusively through authorized Beckhoff distribution channels and verified industrial surplus networks. Every unit undergoes:
- Visual inspection for housing integrity and connector condition
- Label and firmware-version verification against Beckhoff’s published revision history
- Functional power-on test with EtherCAT link confirmation
- Anti-static packaging with humidity indicator card
Counterfeit safety components are a documented industry risk. We provide full traceability documentation (lot number, origin, test record) with every shipment on request.
How to Source This Part
- In-Stock Orders — Add to cart and check out; same-day dispatch for orders placed before 15:00 CST.
- Bulk / Project Quotes — Email support@konmask.com with your BOM quantity and project timeline for volume pricing.
- Urgent / AOG Requirements — Call or WhatsApp +0086 19859288691 for expedited sourcing within 24 hours.
- Global Shipping — DHL Express, FedEx IP, and UPS Worldwide available; export documentation (CO, packing list, commercial invoice) included.
Application-Specific FAQ
Q: Can the EK1914 replace a standalone safety relay (e.g., Pilz PNOZ)?
A: Yes. The EK1914’s FSoE outputs can drive actuators directly (0.5 A per channel) and its TwinSAFE logic handles E-stop, two-hand, and guard-monitoring functions that previously required discrete safety relays.
Q: Is the EK1914 compatible with non-Beckhoff EtherCAT masters?
A: The standard EtherCAT interface is open; however, the TwinSAFE FSoE safety layer requires a TwinSAFE-compatible master (TwinCAT 3 TE9000 or a certified third-party FSoE master). Confirm compatibility with your PLC vendor before specifying.
Q: What TwinCAT version is required?
A: TwinCAT 3.1 Build 4024 or later with the TE9000 TwinSAFE Editor license. The EK1914 is not supported under TwinCAT 2.
Q: How many EK1914 modules can exist on one EtherCAT segment?
A: EtherCAT supports up to 65,535 nodes per segment; practical limits are determined by cycle time budget and FSoE watchdog configuration in the safety project.
Q: Do you provide the Beckhoff ESI (EtherCAT Slave Information) file?
A: Yes — the ESI XML file is available for download from Beckhoff’s official website and we can provide the correct revision file upon request.
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