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Help CenterBeckhoff EL2904 EtherCAT TwinSAFE Safety Output Terminal 4-Channel 24V DC 0.5A Fail-Safe Digital Output Module
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The Beckhoff EL2904 TwinSAFE Safety Output Terminal is a high-performance EtherCAT-based safety module with four fail-safe outputs designed for industrial automation systems requiring certified functional safety.
It controls safety-related actuators such as contactors, relays, safety valves, and emergency stop circuits via Safety over EtherCAT (FSoE). The module automatically transitions to a safe state when faults are detected, ensuring maximum protection for personnel and machinery.
Key Features:
4 independent fail-safe outputs
24 V DC switching voltage
0.5 A output current per channel
TwinSAFE / FSoE communication
SIL 3 / PL e safety certification
Integrated current measurement and diagnostics
Configurable output testing functions
Fail-safe shutdown (fail-stop principle)
Compact DIN rail mounting design
LED status and diagnostics indicators
Applications:
Emergency stop systems
Safety relay control circuits
Machine safety interlocks
Safety gate and guard monitoring
Industrial robotics systems
Packaging and production lines
Process automation systems
Motion safety control architectures
The EL2904 is typically used together with EL1904 safety input modules and EL6900/EL6910 TwinSAFE logic controllers to build complete safety systems in modern EtherCAT-based automation architectures.
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