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EL2904 | BECKHOFF 4-Channel TwinSAFE Digital Output Terminal
- Regular price
- $185.00
- Sale price
- $185.00
- Regular price
-
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Product Description P/N: EL2904
Description
The BECKHOFF EL2904 is a 4-channel TwinSAFE digital output EtherCAT Terminal designed for safety-related control applications. Operating at 24 V DC with up to 0.5 A per channel, it provides fail-safe, monitored switching of actuators within distributed automation systems. Used together with a TwinSAFE logic terminal such as the EL6900, the EL2904 enables flexible, decentralized, and certified machine safety architectures.
Technical Specifications
| Condition | New / Never Used Surplus |
| Manufacturer | BECKHOFF |
| Part Number | EL2904 |
| Product Type | TwinSAFE EtherCAT Digital Output Terminal |
| Number of Outputs | 4 |
| Output Type | Safe Digital Output |
| Voltage | 24 V DC |
| Output Current | 0.5 A per channel |
| Protocol | TwinSAFE / FSoE |
| Connection Type | 1-/2-Wire |
| Current Consumption (E-Bus) | 221 mA |
| Installation Position | Horizontal |
| IP Rating | IP20 |
| Housing | Open-style terminal module |
| Special Features | Current measurement, output testing, standard output option |
| Mounting | DIN Rail (EtherCAT terminal system) |
Information About EL2904
The BECKHOFF EL2904 is a safety-rated TwinSAFE digital output terminal featuring four independent fail-safe output channels. Each channel can switch 24 V DC loads at up to 0.5 A, making the terminal suitable for actuators such as contactors, solenoid valves, or safety-related signaling devices. Communication and safety control are handled through FSoE (FailSafe over EtherCAT), with the EL2904 receiving its safe output commands from a TwinSAFE logic device such as the EL6900. The terminal automatically transitions to a fail-stop state if internal diagnostics detect a fault, ensuring machine and operator safety. The EL2904 includes configurable safety parameters such as output testing, current measurement, and cross-circuit detection. Standard (non-safe) outputs may also be enabled, providing fast switching via internal AND-logic with the safe output signals—allowing the safe controller to issue release permission, while the standard controller executes rapid switching cycles.
Key Features:
- Four (4) fail-safe 24 V DC digital output channels
- Output current up to 0.5 A per channel
- Controlled via TwinSAFE and FSoE safety protocol
- Integrated current measurement for diagnostics
- Configurable output tests and cross-circuit monitoring
- Automatic fail-stop behavior when faults occur
- Optional standard output functionality with internal AND-logic
- Safety parameters stored in the TwinSAFE logic, not the terminal
- IP20 housing, DIN-rail mountable
- Supports flexible, decentralized safety system design
Ideal for modular machine safety, the EL2904 delivers decentralized, programmable, and certified safety control within EtherCAT systems.
Description
The BECKHOFF EL2904 is a 4-channel TwinSAFE digital output EtherCAT Terminal designed for safety-related control applications. Operating at 24 V DC with up to 0.5 A per channel, it provides fail-safe, monitored switching of actuators within distributed automation systems. Used together with a TwinSAFE logic terminal such as the EL6900, the EL2904 enables flexible, decentralized, and certified machine safety architectures.
Technical Specifications
| Condition | New / Never Used Surplus |
| Manufacturer | BECKHOFF |
| Part Number | EL2904 |
| Product Type | TwinSAFE EtherCAT Digital Output Terminal |
| Number of Outputs | 4 |
| Output Type | Safe Digital Output |
| Voltage | 24 V DC |
| Output Current | 0.5 A per channel |
| Protocol | TwinSAFE / FSoE |
| Connection Type | 1-/2-Wire |
| Current Consumption (E-Bus) | 221 mA |
| Installation Position | Horizontal |
| IP Rating | IP20 |
| Housing | Open-style terminal module |
| Special Features | Current measurement, output testing, standard output option |
| Mounting | DIN Rail (EtherCAT terminal system) |
Information About EL2904
The BECKHOFF EL2904 is a safety-rated TwinSAFE digital output terminal featuring four independent fail-safe output channels. Each channel can switch 24 V DC loads at up to 0.5 A, making the terminal suitable for actuators such as contactors, solenoid valves, or safety-related signaling devices. Communication and safety control are handled through FSoE (FailSafe over EtherCAT), with the EL2904 receiving its safe output commands from a TwinSAFE logic device such as the EL6900. The terminal automatically transitions to a fail-stop state if internal diagnostics detect a fault, ensuring machine and operator safety. The EL2904 includes configurable safety parameters such as output testing, current measurement, and cross-circuit detection. Standard (non-safe) outputs may also be enabled, providing fast switching via internal AND-logic with the safe output signals—allowing the safe controller to issue release permission, while the standard controller executes rapid switching cycles.
Key Features:
- Four (4) fail-safe 24 V DC digital output channels
- Output current up to 0.5 A per channel
- Controlled via TwinSAFE and FSoE safety protocol
- Integrated current measurement for diagnostics
- Configurable output tests and cross-circuit monitoring
- Automatic fail-stop behavior when faults occur
- Optional standard output functionality with internal AND-logic
- Safety parameters stored in the TwinSAFE logic, not the terminal
- IP20 housing, DIN-rail mountable
- Supports flexible, decentralized safety system design
Ideal for modular machine safety, the EL2904 delivers decentralized, programmable, and certified safety control within EtherCAT systems.
