ES3122

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The ES3122 is a compact EtherCAT Terminal featuring 2 differential inputs and a 16-bit resolution. Manufactured by Beckhoff and part of the ES EtherCAT Terminals series, it operates within a temperature range of -25AC to +60AC. The terminal includes 500 V electric isolation and a fast conversion time of ~50 Aus.

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Product Description:

The ES3122 EtherCAT terminal provided by Beckhoff incorporates a differential input and two analog inputs. This terminal processes signals with current values between 4 mA and 20 mA current ratings. The product can detect an overload or open lead connection. The device uses an E-bus to relay its status to the controller. This device is ATEX, CCC, and CE Certified as well as UL Listed. The units signal state is indicated by the LEDs that have been included in its design. Its error LEDs highlight a broken wire detection and an overload condition. This terminal has eight pins in its connectors. The has a slim and compact construction and a polycarbonate housing.

The products terminals have no support for pluggable wiring. This device supports limit value monitoring, standard and compact process imaging, FIR/IIR filters that can be activated, and other special features. The unit contains components that are sensitive to electrostatic charge. Its safety and warning notices given in its documentation have to be observed to avoid damage and injury to property and personnel. This terminals inputs share an internal ground connection. The products distributed clocks portray a precision of 1 Aus. This device utilizes a differential ground reference along with simultaneous sampling. The unit needs a control cabinet for its installation. Its electrical isolation voltage is set at 500 V.

This EtherCAT terminal supports operation in potentially explosive areas. The products signal ground has high impedance. This device has two shield connections. The units GND connection points are connected through EMC protection components. Its signal-related terminal points have a maximum current of 40 mA.

Common-mode Voltage
Maximum 10 V
Conversion Time
Typical 50 Aus (fast mode ~35 Aus)
Current Consumption (e-bus)
Typical 170 mA
Electric Isolation
500 V (E-bus/signal voltage)
Input Filter Frequency
5 kHz
Internal Resistance
Typically 85 + diode voltage
Number Of Inputs
2 (differential)
Operating Temperature
-25A-+60AC
Protection Rating
IP20
Resolution
16 bit (including sign)
Signal Current
4A-20 mA
Storage Temperature
-40A-+85AC
Surge Voltage Resistance
Maximum 35 V
Weight
Approximately 55 g

Frequently Asked Questions about ES3122:

Q: What is the frequency limit of the input filter of the ES3122 terminal?

A: The frequency limit of the input filter of the ES3122 terminal is 5 kHz.

Q: What is the maximum common-mode voltage of the ES3122 terminal?

A: The maximum common-mode voltage of the ES3122 terminal is 10 V.

Q: What is the conversion time of the ES3122 terminal in fast mode?

A: The conversion time of the ES3122 terminal in fast mode is approximately 35 Aus.

Q: How is the status of the ES3122 terminal relayed to the controller?

A: The status of the ES3122 terminal is relayed to the controller through the E-bus.

Q: What is the bit width of the process image of the ES3122 terminal?

A: The bit width of the process image of the ES3122 terminal is 8 bytes.


Internal Product Review

  • ‘‘The ES3122 terminal has a rugged and durable construction. It supports side-by-side mounting with other terminals. The module has an IP 20 protection rating.’’

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