EL5122

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The EL5122 is an EtherCAT terminal weighing approximately 50 grams, featuring a 32-bit counter with the option to switch between 16/32 bits. Part of Beckhoff's EL EtherCAT Terminal Series, it provides 2 channel encoder connections and operates on an encoder voltage of 5 V, 12 V, or 24 V DC. It supports distributed clocks and includes IP20 protection.

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Product Description:

EL5122 is an EtherCAT terminal with 2-channel encoder inputs. It works with incremental encoders. An incremental encoder is sensor used to measure the position, speed, or direction of motion. It generates a series of pulses as it moves, which can be counted to determine how far the object has traveled from a known position. High-performance encoders that provide single-ended signals can be connected to the terminal. Integrated pull-up resistors enable easy open collector evaluation without the need for external circuits. Encoder supply at 5/12/24 Volts can be directly connected through the terminal connection points. Special features supported by the EL5122 include built-in period and frequency measurement, synchronous position value reading, optional up/down counter, and set/save/lock counter. The terminal can also be used for the measurement of velocity, frequency or period with 10 nanosecond resolution.

Additional inputs on the terminal include gate/latch per channel. The default encoder operating voltage is 5 Volts DC, 12 Volts DC and 24 Volts DC. The counter default resolution is 32 bits and can be switched to 16 bits. Specifications for the quadrature decoder include 4-fold evaluation, which can be switched to 2-fold or 1-fold. Support for distributed clocks is available on the EtherCAT terminal. Current consumption at the power contacts is 10 milliamps plus the load current. Current drawn by the E-bus on the terminal is typically 190 milliamps. Around 500 Volts of isolation is provided by the E-bus and field potential. Shipping weight of the unit is approximately 50 grams. The recommended temperatures for storage and operation are -25 to 85 and 0 to 55 degrees Celsius. With an IP20 rated housing, the terminal can be installed in various positions.

Additional Inputs
Gate/latch (24 V DC)
Counter
32 bit (default), 16/32 bit switchable
Current Consumption E-bus
Typ. 190 mA
Current Consumption Power Contacts
Typ. 10 mA + load
Distributed Clocks
Yes
Encoder Connection
2 x A, B single-ended (TTL, open collector)
Encoder Operating Voltage
5 V, 12 V, 24 V DC switchable
Limit Frequency
4 million increments/s (1 MHz TTL)
Number Of Channels
2
Operating/storage Temperature
0…+55°C / -25…+85°C
Protection Rating
IP20
Quadrature Decoder
4-fold evaluation, switchable
Special Features
Period duration, frequency, and speed measurement
Weight
Approx. 50 g

Frequently Asked Questions about EL5122:

Q: What is the weight of the terminal?

A: Weight of the terminal is 50 grams.

Q: What is the unit's protection rating?

A: Protection rating of the terminal is IP20.

Q: What is the electrical isolation?

A: There is 500 Volts of isolation on the terminal.

Q: What is the maximum relative humidity?

A: The maximum relative humidity is 95%.

Q: What is the E-bus current consumption?

A: Current drawn by the E-bus is 190 milliamps.


Internal Product Review

  • ‘‘EL5122 is an EtherCAT terminal that accepts inputs from single-ended encoders. The terminal provides an effective feedback solution for high-performance applications.’’

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