Product Overview

The Beckhoff EL2595 is an EtherCAT terminal with a constant current source for LEDs. This 1-channel device controls one or more LEDs connected in series. The user specifies the required set current, and the integrated power supply unit provides the required forward voltage.

The terminal includes a step-up/step-down power supply unit. This generates the output voltage from the 24V DC input voltage. Furthermore, the output voltage adjusts during operation to maintain the set current. Therefore, it suits simple lighting tasks and continuous LED operation.

General Specifications

The EL2595 offers robust LED control capabilities for EtherCAT systems.

• Manufacturer: Beckhoff.

• Product Type: EtherCAT Terminal, 1-channel LED output.

• Recommended Use: Constant lighting >300 mA and simple illumination tasks.

• Connection Technology: 2-wire.

• Number of Outputs: 1.

• Load Type: LED (ohmic).

• Weight: approx. 55 g.

Voltage and Current Ratings

The EL2595 operates within specified voltage and current ranges.

• Input Voltage: 24 V DC (-15%/+20%).

• Output Voltage: 2 to 48 V DC (up/down control from input voltage).

• Max Output Current: 300 to 700 mA (depending on output voltage and duty cycle).

• Current Consumption (E-bus): typ. 130 mA.

• Current Consumption (Power contacts): typ. 20 mA + load.

• Current Load Power Contacts (Max): 10 A.

Switching Performance

The EL2595 provides extremely fast switching for LED control.

• Typical TON: <1 µs.

• Typical TOFF: <1 µs.

• Minimum Pulse Duration: 1 µs to infinity (adjustable).

• Pulses from: 200 µs.

• Distributed Clocks: Yes.

• Distributed Clock Precision: <<1 µs.

Consequently, even extremely short flashes of light are possible. The flash time itself can be set through a timestamp via distributed clocks.

XFC Technology Support

The EL2595 supports XFC (eXtreme Fast Control) technology.

• Timestamp Support: Yes.

• Synchronized Operation: Through distributed clocks.

• Trigger Input: 1 (electrically isolated, typ. 8 mA, 5-24 V DC).

Thus, it enables high-precision, time-synchronized LED triggering.

Diagnostics and Protection

The EL2595 includes extensive real-time diagnostics.

• Monitored Parameters: Input current/voltage, output current/voltage.

• Purpose: Detailed monitoring of LED light intensity.

• Load Corridor Monitoring: Specifiable load corridor.

• Protection Action: Switches off to protect load if corridor is exited (resettable).

• Optional Automatic Operation: In case of communication interruption.

Hence, the terminal provides reliable fault detection and load protection.

Electrical Isolation

The EL2595 provides galvanic isolation for safety.

• Electrical Isolation: 500 V (E-bus/field potential).

Environmental Specifications

The EL2595 withstands typical industrial conditions.

• Operating Temperature: 0 to +55°C.

• Storage Temperature: -25 to +85°C.

• Relative Humidity: 95% (no condensation).

• Vibration/Shock Resistance: Conforms to EN 60068-2-6 / EN 60068-2-27.

• EMC Immunity/Emission: Conforms to EN 61000-6-2 / EN 61000-6-4.

• Protection Rating: IP20.

• Installation Position: Variable.

Housing and Dimensions

The EL2595 uses a high-density housing design.

• Housing Data: EL-12-16pin.

• Design Form: HD (High Density) housing with signal LEDs.

• Material: Polycarbonate.

• Dimensions (W x H x D): 12 mm x 100 mm x 68 mm.

• Installation: 35 mm DIN rail (conforming to EN 60715) with lock.

• Side by Side Mounting: Double slot and key connection.

Wiring Specifications

The EL2595 supports flexible wiring options.

Connection Cross-Section:

• Solid Wire (s*): 0.08 to 1.5 mm² (AWG 28-16).

• Stranded Wire (st*): 0.25 to 1.5 mm² (AWG 22-16).

• With Ferrule (f*): 0.14 to 0.75 mm² (AWG 26-19).

Stripping Length: 8 to 9 mm.
Wiring Method: Spring actuation by screwdriver (direct plug-in technique for solid conductors).

Approvals

The EL2595 carries CE approvals/markings.

Key Features

The EL2595 offers several advantages for LED lighting control.

Constant Current Source:
Provides regulated constant current for LEDs. Therefore, brightness remains stable regardless of LED forward voltage variations.

Step-Up/Step-Down Converter:
Generates output voltage from 24V input up to 48V or down to 2V. Consequently, it drives multiple LEDs in series.

Extremely Fast Switching:
<1 µs switching times with pulses from 200 µs. Hence, it suits strobe and high-speed lighting applications.

Adjustable Pulse Duration:
Pulse duration adjustable from 1 µs to infinity. For this reason, it handles both short flashes and continuous operation.

XFC and Distributed Clock Support:
Timestamp-based triggering with <1 µs precision. Thus, multiple terminals can be synchronized precisely.

External Trigger Input:
One isolated trigger input (5-24V DC) for external camera or sensor synchronization. Consequently, it integrates into vision systems.

Comprehensive Diagnostics:
Monitors input/output voltage and current. Therefore, LED intensity and health can be tracked.

Load Protection:
Switches off if load corridor is exited. Hence, connected LEDs are protected from overcurrent or open-circuit faults.

Optional Automatic Operation:
Continues operation at last setpoint if communication is interrupted. Thus, critical lighting can be maintained.

High-Density Housing:
12mm width saves panel space. For this reason, it suits high-channel-count applications.

Typical Applications

The EL2595 suits various LED control applications.

• Continuous LED lighting for machine illumination.

• Strobe lighting for vision inspection systems.

• Flash control for high-speed cameras.

• LED control in packaging and printing machines.

• Simple constant current LED driving for indicators.

Installation Guidelines

Install the EL2595 on a 35mm DIN rail conforming to EN 60715. First, snap the terminal onto the rail. Then, connect the 24V DC power supply to the power contacts.

Connect the LED(s) to the 2-wire output. The terminal provides constant current from 300-700 mA (depending on output voltage and duty cycle). The output voltage automatically adjusts up to 48V DC to maintain the set current.

For external triggering, connect a 5-24V DC signal to the isolated trigger input. Configure the pulse duration from 1 µs to infinity using EtherCAT distributed clocks. The terminal supports XFC timestamp technology for precise synchronization.

What is in the Box

Please inspect all items upon delivery.

• Beckhoff EL2595 EtherCAT terminal.

• Installation instruction manual.

• Anti-static protective bag.

Frequently Asked Questions (FAQ)

1. What is the maximum output current of the EL2595?

The EL2595 provides adjustable output current from 300 to 700 mA. The exact maximum depends on output voltage and duty cycle.

2. What is the output voltage range of this terminal?

The EL2595 generates output voltage from 2 to 48 V DC. It uses a step-up/step-down converter from the 24V DC input.

3. Does the EL2595 support distributed clocks for synchronization?

Yes. The EL2595 includes distributed clocks with precision <<1 µs. Therefore, it supports XFC timestamp technology for synchronized triggering.

4. What is the minimum pulse duration for flashing LEDs?

The EL2595 supports adjustable pulse duration from 1 µs to infinity. Typical switching times are <1 µs for both ON and OFF.

5. What happens if the communication to the terminal is interrupted?

The EL2595 supports optional automatic operation in case of communication interruption. Therefore, it can continue operating at the last setpoint.