EL2522

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The Beckhoff EL2522, part of the EL EtherCAT Terminals, features pulse train connection technology for frequency output and weighs approximately 50 grams. It offers two A/B and one A/B/C output channels with RS422 differential output specifications, and a base frequency range of 0–4 MHz. The terminal is short-circuit proof.

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Product Description:

The EL2522 Ether CAT terminal from Beckhoff is made for simulating a progressive encoder and pulse train output. The EL terminal uses RS-422 signal technology and has two channels with four split outputs. For motor drivers and other devices, it sends precise frequency-modulated data and is part of industrial automation systems.

The EL2522 Ether CAT Terminal consumes an average of 120 mA of E-bus current, while power contacts drain approximately 50 mA. The terminal and any connected components are safeguarded by short-circuit protection. The end is approximately 50 grams in weight and can operate in conditions ranging from -25°C to +60°C. The terminal can be stored at temperatures between -40°C and +85°C and can handle up to 95% relative humidity without condensation. The terminal has been approved by both CE and UL and has an IP20 rating for security. The EL terminal has modes for incremental encoder modeling, frequency modulation, and specifying the pulse direction. With XFC technology it has built-in path control and synchronized function through distributed clocks.

A key connection and double location facilitate the placement of two objects in close proximity. The terminal is compatible with ferruled, fine-stranded, and solid conductors. It is compatible with both spring-actuated and direct plug-in methods. To connect solid wires, the cross-section is between 0.08 and 1.5 mm³, and for ferrules, it is between 0.14 and 0.75 mm³. Power contacts can handle up to 10 A of energy. With a 500 V electrical isolation between the E-bus and the field potential, the EL2522 terminal makes sure that the signal output is stable and that the system works well together. The terminal is designed to operate with precision and dependability in challenging scientific environments.

Base Frequency Range
0…4 MHz
Connection Technology
Pulse train (frequency output)
Current Consumption (E-bus)
120 mA typical
Current Consumption (Power Contacts)
50 mA typical, load-dependent
Default Frequency
50 kHz
Distributed Clocks
Yes
EMC Standards
EN 61000-6-2 / EN 61000-6-4
Number of Outputs
2× A/B + 1× A/B/C (4 differential)
Operating Temperature
-25…+60°C
Output Interface
RS422 differential; 50 mA drive; min 120 Ω
Power Supply
Via E-bus
Resolution
16-bit (incl. sign)
Short-circuit proof
Yes
Special Feature Set 1
Variable freq pulse output; freq modulation; direction spec
Special Feature Set 2
Encoder simulation; ramp function; travel distance control
Vibration/Shock Resistance
EN 60068-2-6 / EN 60068-2-27
Weight
~50 g

Frequently Asked Questions about EL2522:

Q: How does EL2522 manage vibration and shock resistance?

A: The terminal conforms to EN 60068-2-6 and EN 60068-2-27 standards. This ensures operational stability under mechanical stress.

Q: Why is the E-bus current consumption 120 mA for EL2522?

A: The 120 mA typical current supports stable communication and power supply within the EtherCAT network. It balances efficiency and performance.

Q: Does EL2522 support high humidity conditions?

A: The terminal operates in environments with up to 95% relative humidity, non-condensing. This prevents moisture-related failures.

Q: How does EL2522 achieve EMC compliance?

A: The terminal meets EN 61000-6-2 and EN 61000-6-4 standards. This limits electromagnetic interference and emissions.

Q: Why is electrical isolation of 500 V important for EL2522?

A: 500 V isolation separates the E-bus from the field potential. It protects the system from voltage spikes and interference.


Internal Product Review

  • ‘‘The EL2522 EtherCAT Terminal delivers precise pulse train output with 16-bit resolution and short-circuit protection. It supports multiple operating modes, including incremental encoder simulation and frequency modulation. The device operates reliably across wide temperature and humidity ranges. The terminal offers strong vibration resistance and electrical isolation, making it a dependable choice.’’

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