EL4122 | Beckhoff EtherCAT Terminal 2-Channel Analog Output 4–20 mA 16-Bit
Beckhoff · Cables & Connectivity
Description The Beckhoff EL4122 is a 2-channel analog output EtherCAT Terminal designed to generate precise current signals in the 4–20 mA range. Featuring 16-bit resolution, short-circuit protection, and electrical isolation up to 500 V, it ensures high accuracy and reliability in current control and process automation applications. Technical Specifications Condition New/Never Used Surplus Brand Beckhoff Category Industrial Automation Part Number EL4122 Subcategory EtherCAT Terminal Function 2-channel analog output (current) Number of Outputs 2 Signal Current 4…20 mA Resolution 16 bit (including sign) Output Rate Max. 15 ksps Distributed Clocks Yes Distributed Clock Precision << 1 µs Load < 500 Ω (short-circuit proof) Output Error < 0.1% (relative to full scale) Power Supply 24 V DC via power contacts Current Consumption (Power Contacts) Typ. 15 mA + load Current Consumption (E-bus) Typ. 110 mA Electrical Isolation 500 V (E-bus/signal voltage) Bit Width in Process Image 2 × 16-bit AO output Special Features Watchdog parameterizable; user synchronization can be activated EMC Standard EN 61000-6-2/EN 61000-6-4 compliant Operating Temperature -25°C to +55°C Storage Temperature -40°C to +85°C Relative Humidity 95%, non-condensing Weight Approx. 60 g Protection Class IP20 Information About EL4122 The EL4122 belongs to Beckhoff’s advanced EL4xxx series of EtherCAT analog output terminals, engineered for precise current signal generation in automation systems. Each of the two channels delivers 4–20 mA current signals with 16-bit resolution, allowing fine control of actuators, valves, and analog devices. Its output stages are powered by the 24 V DC supply and share a common ground potential, simplifying wiring while maintaining high electrical integrity. The terminal features distributed clock capability for synchronization with other EtherCAT devices, ensuring deterministic signal timing. Built-in short-circuit protection and a configurable watchdog function further enhance safety and reliability. With its robust design and compliance with industry EMC standards, the EL4122 is suited for demanding process control, instrumentation, and machine automation environments. Key Features: Dual Analog Outputs: Two 4–20 mA output channels provide independent current control for analog actuators and process loops. High Signal Resolution: 16-bit digital-to-analog conversion ensures precise and smooth current generation. Electrical Isolation: 500 V isolation between E-bus and signal voltage protects connected devices and prevents interference. Distributed Clock Synchronization: Enables microsecond-level synchronization with other EtherCAT components for time-critical operations. Short-Circuit Protection: Safeguards outputs against overload and wiring faults for long-term durability. Fast Output Performance: Delivers up to 15,000 samples per second for responsive analog control. Parameterizable Watchdog: Monitors output activity and automatically triggers user-defined safety states in case of system faults. Compact Modular Design: Fits seamlessly into EtherCAT systems, allowing flexible and scalable I/O configurations. EMC-Compliant Reliability: Meets EN 61000-6-2/6-4 standards for electromagnetic compatibility in industrial environments. Wide Operating Range: Performs consistently from -25°C to +55°C and up to 95% humidity for industrial use. The EL4122 delivers the reliability and precision required for current-based control, process automation, and instrumentation tasks in EtherCAT-based systems.
Brand: Beckhoff · Category: Cables & Connectivity
Key features
- Dual Analog Outputs: Two 4–20 mA output channels provide independent current control for analog actuators and process loops.
- High Signal Resolution: 16-bit digital-to-analog conversion ensures precise and smooth current generation.
- Electrical Isolation: 500 V isolation between E-bus and signal voltage protects connected devices and prevents interference.
- Distributed Clock Synchronization: Enables microsecond-level synchronization with other EtherCAT components for time-critical operations.
- Short-Circuit Protection: Safeguards outputs against overload and wiring faults for long-term durability.
- Fast Output Performance: Delivers up to 15,000 samples per second for responsive analog control.
- Parameterizable Watchdog: Monitors output activity and automatically triggers user-defined safety states in case of system faults.
- Compact Modular Design: Fits seamlessly into EtherCAT systems, allowing flexible and scalable I/O configurations.
- EMC-Compliant Reliability: Meets EN 61000-6-2/6-4 standards for electromagnetic compatibility in industrial environments.
- Wide Operating Range: Performs consistently from -25°C to +55°C and up to 95% humidity for industrial use.
Specifications
| Manufacturer part number | EL4122 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Industrial Automation |
| Part Number | EL4122 |
| Subcategory | EtherCAT Terminal |
| Function | 2-channel analog output (current) |
| Number of Outputs | 2 |
| Signal Current | 4…20 mA |
| Resolution | 16 bit (including sign) |
| Output Rate | Max. 15 ksps |
| Distributed Clocks | Yes |
| Distributed Clock Precision | << 1 µs |
| Load | < 500 Ω (short-circuit proof) |
| Output Error | < 0.1% (relative to full scale) |
| Power Supply | 24 V DC via power contacts |
| Current Consumption (Power Contacts) | Typ. 15 mA + load |
| Current Consumption (E-bus) | Typ. 110 mA |
| Electrical Isolation | 500 V (E-bus/signal voltage) |
| Bit Width in Process Image | 2 × 16-bit AO output |
| Special Features | Watchdog parameterizable; user synchronization can be activated |
| EMC Standard | EN 61000-6-2/EN 61000-6-4 compliant |
| Operating Temperature | -25°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 95%, non-condensing |
| Weight | Approx. 60 g |
| Protection Class | IP20 |
| Product type | Bus Terminal |
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