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Beckhoff EL2904 – Overview
The Beckhoff EL2904 is a TwinSAFE EtherCAT terminal featuring four fail-safe digital output channels designed for 24 V DC actuators. It enables secure switching of outputs in functional safety applications and communicates via the Safety-over-EtherCAT (FSoE) protocol.
Each output channel provides up to 0.5 A and includes built-in diagnostics, cross-circuit detection, and current monitoring. The module allows safe and standard output functions to operate in parallel, improving flexibility and system responsiveness in safety-critical environments.
Key Features
-
Four safe digital output channels for 24 V DC actuators
-
Output current up to 0.5 A per channel
-
Supports Safety-over-EtherCAT (FSoE) protocol
-
Integrated current measurement and channel diagnostics
-
Short-circuit and cross-circuit detection
-
Parallel operation of standard and safe outputs
-
Compact IP20 housing, DIN-rail mountable
-
Certified to SIL 3 (IEC 61508) and PL e (EN ISO 13849-1) safety standards
Technical Specifications
-
Part Numbers:
– EL2904
– EL 2904 -
Number of Outputs: 4 safe digital channels
-
Nominal Voltage: 24 V DC
-
Maximum Output Current: 0.5 A per channel
-
Switching Type: PNP, sourcing output
-
Protocol: Safety-over-EtherCAT (FSoE)
-
Connection Technology: 1-wire or 2-wire depending on configuration
-
Electrical Isolation: 500 V (E-bus to field level)
-
Protection Rating: IP20
-
Operating Temperature: –25 °C to +60 °C
-
Storage Temperature: –40 °C to +85 °C
-
Mounting: 35 mm DIN-rail
-
Housing Width: 12 mm
-
Manufacturer: Beckhoff Automation
-
Weight: 0.10 – 0.23 kg (0.22 – 0.50 lb)
-
Packed dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
Safe actuator control in industrial machinery and automation
-
Safety-related outputs in distributed EtherCAT I/O systems
-
Integration into TwinSAFE architectures requiring SIL 3/PL e
-
Machines, conveyors, and production lines with safety zones
Why Choose Beckhoff EL2904
-
Provides four independent, safe outputs in a compact module
-
Fully compliant with international safety standards
-
Offers diagnostic and current measurement for reliability
-
Simplifies cabinet wiring and EtherCAT network design
Order Now
The Beckhoff EL2904 TwinSAFE EtherCAT Terminal is available for order and ships worldwide.
Description
Beckhoff EL2904 – Overview
The Beckhoff EL2904 is a TwinSAFE EtherCAT terminal featuring four fail-safe digital output channels designed for 24 V DC actuators. It enables secure switching of outputs in functional safety applications and communicates via the Safety-over-EtherCAT (FSoE) protocol.
Each output channel provides up to 0.5 A and includes built-in diagnostics, cross-circuit detection, and current monitoring. The module allows safe and standard output functions to operate in parallel, improving flexibility and system responsiveness in safety-critical environments.
Key Features
-
Four safe digital output channels for 24 V DC actuators
-
Output current up to 0.5 A per channel
-
Supports Safety-over-EtherCAT (FSoE) protocol
-
Integrated current measurement and channel diagnostics
-
Short-circuit and cross-circuit detection
-
Parallel operation of standard and safe outputs
-
Compact IP20 housing, DIN-rail mountable
-
Certified to SIL 3 (IEC 61508) and PL e (EN ISO 13849-1) safety standards
Technical Specifications
-
Part Numbers:
– EL2904
– EL 2904 -
Number of Outputs: 4 safe digital channels
-
Nominal Voltage: 24 V DC
-
Maximum Output Current: 0.5 A per channel
-
Switching Type: PNP, sourcing output
-
Protocol: Safety-over-EtherCAT (FSoE)
-
Connection Technology: 1-wire or 2-wire depending on configuration
-
Electrical Isolation: 500 V (E-bus to field level)
-
Protection Rating: IP20
-
Operating Temperature: –25 °C to +60 °C
-
Storage Temperature: –40 °C to +85 °C
-
Mounting: 35 mm DIN-rail
-
Housing Width: 12 mm
-
Manufacturer: Beckhoff Automation
-
Weight: 0.10 – 0.23 kg (0.22 – 0.50 lb)
-
Packed dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
Safe actuator control in industrial machinery and automation
-
Safety-related outputs in distributed EtherCAT I/O systems
-
Integration into TwinSAFE architectures requiring SIL 3/PL e
-
Machines, conveyors, and production lines with safety zones
Why Choose Beckhoff EL2904
-
Provides four independent, safe outputs in a compact module
-
Fully compliant with international safety standards
-
Offers diagnostic and current measurement for reliability
-
Simplifies cabinet wiring and EtherCAT network design
Order Now
The Beckhoff EL2904 TwinSAFE EtherCAT Terminal is available for order and ships worldwide.