Beckhoff EL9221-5000 EtherCAT Terminal 1-Channel Overcurrent Protection Module

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Fabricante: BECKHOFF
Nº do Produto: EL9221-5000
País de origem:Alemanha
Tipo de Produto: EtherCAT Terminal Modules
Pagamento: T/T, Western Union
Peso: 2000g
Dimensões: 12 mm x 100 mm x 68 mm
Porto de embarque: Xiamen
Garantia: 12 meses

Designed for selective overcurrent protection in 24 V DC control circuits, the Beckhoff EL9221-5000 EtherCAT Terminal provides active electronic monitoring and shutdown capabilities for a single electrical channel. This compact 12 mm module integrates seamlessly into the standard EtherCAT terminal segment, offering adjustable current ratings from 1 to 10 A to safeguard sensitive field devices against short circuits and overload conditions.

Key Features

Adjustable Rated Current: Configurable from 1 A to 10 A in precise 1 A increments via the integrated LED button interface.
Active Current Limitation: Prevents system-wide voltage dips by isolating faults rapidly on the affected channel.
E-Bus Integration: Draws a typical current of 80 mA from the E-bus, enabling full diagnostics and status reporting via TwinCAT.
Early Warning System: Triggers an advance warning signal when the output load reaches 90% of the configured threshold.
Integrated Fail-Safe: Features a built-in 15 A (F) hardware fuse as secondary protection.

Industrial Applications

24 V DC Power Distribution: Selective protection of sensors, actuators, and industrial PC controllers.
Automotive Assembly Lines: Segmented protection to prevent localized wiring faults from halting entire production lines.
Machine Tool Manufacturing: Safe power routing to auxiliary control circuits and fieldbus nodes.

Technical Specifications

Parameter	Specification Value
Manufacturer	Beckhoff Automation
Model Number	EL9221-5000
Nominal Voltage	24 V DC
Number of Channels	1 Input, 1 Output
Rated Current Range	Adjustable from 1 to 10 A (in 1 A steps)
E-Bus Current Consumption	Typically 80 mA
Electrical Isolation	500 V (E-bus/signal voltage)
Overvoltage Power-Off	Greater than or equal to 32 V DC
Integrated Backup Fuse	15 A (Fast-acting)
Operating Temperature	0 to 55 Celsius
Storage Temperature	-25 to 85 Celsius
Protection Rating	IP20
Dimensions (W x H x D)	12 mm x 100 mm x 68 mm
Housing Material	Polycarbonate
Approvals	CE, cULus, cURus
Net Weight	55 g
Shipping Weight (Calculated)	0.15 kg

Wiring and Connection Specifications

Connection Type	Conductor Cross-Section	AWG Range
Solid Wire (e)	0.08 to 2.5 mm²	AWG 28 to 14
Stranded Wire (st)	0.08 to 2.5 mm²	AWG 28 to 14
Flexible Wire with Ferrule (f)	0.14 to 1.5 mm²	AWG 26 to 16
Stripping Length	8 to 9 mm

Empirical Engineering Insights

Alternative Models & Compatibility

The EL9221-5000 features an integrated LED button interface for local manual configuration and status visualization, distinguishing it from standard fixed-value overcurrent terminals. When integrating this module into existing TwinCAT system manager configurations, ensure the correct XML device description (ESI) file is loaded to enable full access to the diagnostic registers and current-limit parameters.

Application Pitfalls & Engineering Notes

When mounting multiple EL9221-5000 terminals adjacent to one another under high continuous current loads (approaching 10 A per module), thermal accumulation within the enclosure must be monitored. Maintain adequate panel ventilation. Note that the 90% load advance warning threshold is highly sensitive; transient startup currents of inductive loads should be mapped to prevent nuisance warning flags in the PLC control loop.

Commissioning & Wiring Tips

Always use a standard flat-blade screwdriver to actuate the tension clamp mechanism during wiring. Ensure that the E-bus current budget of the upstream EtherCAT Coupler (such as the EK1100) is not exceeded, as the EL9221-5000 draws a nominal 80 mA from the internal communication bus.

Installation Guidelines

CRITICAL WARNING

De-energize all power sources before mounting, removing, or wiring the module. Failure to isolate the 24 V DC system power and the E-bus supply can result in permanent damage to the terminal contacts, adjacent modules, or the EtherCAT coupler interface.

Mount the terminal onto a standard 35 mm DIN rail conforming to EN 60715, ensuring the lock mechanism engages securely.

Slide the terminal along the rail to connect it with the adjacent EtherCAT terminal, ensuring the double slot and key connection is fully seated.

Strip the connection wires to the specified length of 8 to 9 mm. Insert the conductor into the spring-loaded terminal point using a screwdriver for actuation.

Apply 24 V DC power and configure the desired current limit (1 to 10 A) using the local LED button or via the TwinCAT software interface.

Key Features:

#Beckhoff EtherCAT Terminals #Overcurrent Protection Terminals

How do I adjust the current limit on the EL9221-5000?

The current limit can be adjusted locally from 1 A to 10 A in 1 A steps using the integrated LED button on the front of the terminal, or configured remotely via the TwinCAT software interface.

What is the purpose of the 90% advance warning output load feature?

The advance warning output load feature alerts the control system via the E-bus when the connected load reaches 90% of the set current limit, allowing preventive action before a shutdown occurs.

Does the EL9221-5000 require an external fuse?

The module features an integrated 15 A fast-acting fail-safe hardware fuse as secondary protection, but standard practice recommends proper primary branch circuit protection upstream.

What is the E-bus current consumption for this terminal?

The EL9221-5000 draws a typical current of 80 mA from the E-bus. This must be factored into the total power budget of your EtherCAT coupler segment.

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TECHNICAL SPECIFICATIONS

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Beckhoff EL9221-5000 EtherCAT Terminal 1-Channel Overcurrent Protection Module