Beckhoff EJ9505 EJ Series Power Supply Plug-in Module

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Manufacturer: BECKHOFF
Product No.: EJ9505
Country of origin:Germany
Product Type: Power Supply Modules
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months

Providing a regulated low-voltage source directly on the signal distribution board, the Beckhoff EJ9505 is a high-reliability power supply plug-in module designed for demanding industrial automation environments. This module efficiently converts a 24 V DC input into a stabilized 5 V DC output, making it ideal for powering sensors, encoders, and low-voltage electronic components within the modular EtherCAT Plug-in system.

Key Features

Stabilized 5 V DC output voltage with a tight +/- 1% tolerance window.
Integrated short-circuit proof design to protect downstream components.
Direct integration of diagnostic status into the controller process image.
Compact plug-in form factor optimized for space-constrained signal distribution boards.
Conforms to EN 61000-6-2 and EN 61000-6-4 standards for robust electromagnetic compatibility.

Industrial Applications

High-volume serial machine manufacturing utilizing custom distribution boards.
Compact control cabinets requiring high-density I/O and localized power distribution.
Automated assembly lines and robotic tool integration.

Technical Specifications

Parameter	Specification Value
Manufacturer	Beckhoff Automation
Model	EJ9505
Input Voltage	24 V DC (-15% / +20%)
Output Voltage	5 V DC (+/- 1%)
Output Current	0.5 A
Current Consumption E-bus	typ. 70 mA
Short-Circuit Proof	Yes
Diagnostics in Process Image	Yes
Operating Temperature	0 to 55 degC
Storage Temperature	-25 to 85 degC
Relative Humidity	95%, non-condensing
EMC Immunity/Emission	Conforms to EN 61000-6-2 / EN 61000-6-4
Vibration/Shock Resistance	Conforms to EN 60068-2-6 / EN 60068-2-27
Protection Rating	IP20
Approvals	CE, UL
Net Weight	approx. 50 g
Shipping Weight	2.0 kg

Empirical Engineering Insights

Alternative Models & Compatibility

The EJ9505 is part of the Beckhoff EJ series plug-in module family. Unlike standard EtherCAT Terminals (EL/ES series), the EJ9505 requires a compatible signal distribution board (PCB) to route power and E-bus signals. It cannot be mounted directly onto a standard DIN rail without this backplane interface.

Application Pitfalls & Engineering Notes

When designing the signal distribution board, ensure that the PCB traces carrying the 5 V DC output are sized appropriately for the maximum 0.5 A current to prevent localized heating and voltage drops. If downstream 5 V sensors draw more than 0.5 A in total, the module's internal electronic fuse will trip, requiring a power cycle or load reduction to reset.

Commissioning & Wiring Tips

Map the diagnostic variables of the EJ9505 in TwinCAT to monitor the health of the 5 V supply. The process image provides real-time status indicators that can trigger system alarms before a complete voltage drop occurs, minimizing unexpected machine downtime.

Installation Guidelines

CRITICAL WARNING

De-energize all power sources before inserting or removing the EJ9505 module from the signal distribution board. Hot-plugging plug-in modules can cause permanent damage to the contact pins, the distribution board, and adjacent EtherCAT components.

Verify that the main 24 V DC power supply is completely switched off and locked out.

Align the EJ9505 module pins precisely with the corresponding sockets on the signal distribution board.

Press the module firmly and evenly into place until the locking mechanisms engage securely.

Apply 24 V DC input power and verify the 5 V DC output status via the TwinCAT system manager.

Product Image	Model Number / Title	Condition	Availability	Action
	BECKHOFF EJ9576 EtherCAT Brake Chopper Plug-in Module	Original New	In Stock	View Details

Key Features:

#Beckhoff EJ Series #Power Supply Modules

What is the primary function of the EJ9505 module?

The module generates a stabilized 5 V DC output from a 24 V DC input to power low-voltage sensors and electronic components directly on an EJ signal distribution board.

Can the EJ9505 be mounted directly to a standard DIN rail?

No, the EJ9505 is an EtherCAT Plug-in module designed to be mounted on a custom signal distribution board (PCB) rather than directly on a standard DIN rail.

What happens if the output current exceeds 0.5 A?

The EJ9505 features short-circuit and overload protection. If the current exceeds 0.5 A, the module will shut down or limit the output to protect the circuitry.

Does the EJ9505 provide electrical isolation between input and output?

No, the EJ9505 does not feature electrical isolation between the 24 V DC input and the 5 V DC output.

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Returns & Warranty

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12-Month Warranty: Every industrial component is backed by our professional technical warranty.

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TECHNICAL SPECIFICATIONS

Country of origin

Beckhoff EJ9505 EJ Series Power Supply Plug-in Module