Beckhoff EL4074 | EtherCAT Terminal, 4-channel analog output, multi-function

The ED4072 analog output terminal is a universal 10 V/20 mA output

module in the 16-bit class for simple control tasks. Standard signals

in the -10/0...+10 V or -20/0/+4...+20 mA ranges can be generated

per channel. CoE can be used to set each channel to U or I mode in

TwinCAT or from the controller.

The voltage and current outputs are single-ended, meaning that they

each refer to the 0 V DC power contact. All outputs are digitized with

a 16-bit resolution and transmitted to the higher-level automation

system under electrical isolation. With a technical output range of

±107% of the nominal range, unconventional setpoints, such as for

error reporting purposes, can also be output.

The current outputs can have high load resistances and report

overload, wire break, or – in the case of voltage outputs – a short

circuit.

The ED4072 terminal has 24 V/0 V DC contacts for the supply of the

actuators.

The EM3701 analog input terminal measures the differential pressure between

two hose connections in a measuring range of ±100 mbar. The pressure value

is directly available to the controller as a 16-bit value, and errors such as out-

of-range values are also displayed. The compact design and simple connection

system support space-saving and quick installation with no need for additional

measuring devices.

The terminal can be used to measure pressure or also to replace a pressure

switch. It is not suitable for measuring aggressive gases. The pressure value

in the controller enables the switching threshold to be stored as a parameter

for a logical operation.

Manually setting the pressure switch in the application is therefore no longer

required.

The ELX3314 analog input terminals allows the direct connection of thermocouples

located in hazardous areas classified zone 0/20 or 1/21.

The circuitry of the ELX3314 can operate sensors with 2-wire technology.

Linearization is possible over the entire freely selectable temperature range.

The error LEDs indicate a broken wire. Compensation for the cold junction is

achieved through internal temperature measurement. Millivolt measurement is also

possible with ELX3314.

EtherCAT terminals of the ELX series must always be operated in conjunction with

the ELX9560 power supply terminal. This terminal generates an electrically isolated

output voltage (24 V EX) from the input voltage (24 V DC) for supplying the

subsequent ELX terminals. If a new power supply is required, the combination of an

ELX9410 and an ELX9560 can be used so that further ELX terminals can be added.

The ELX terminal segment must be terminated with one ELX9012. two ELX9410 or

one EK1110. The use of two ELX9410 allows the use of EL terminals behind ELX

terminals. With the EK1110. the terminal segment can be continued via an EtherCAT

cable, for example to implement cable redundancy.

The ELX3204 analog input terminal allows the direct connection of RTDs

located in hazardous areas classified zone 0/20 or 1/21.

The circuitry of the ELX3204 can operate sensors with 2-wire technology.

Linearization is carried out over the entire freely selectable temperature

range. By default the terminal is set to Pt100 sensors with 2-wire

technology. The ELX3204 terminal indicates signal state and sensor

malfunctions (e.g. wire breakage) by means of LEDs.

EtherCAT terminals of the ELX series must always be operated in conjunction

with the ELX9560 power supply terminal. This terminal generates an

electrically isolated output voltage (24 V EX) from the input voltage (24 V DC)

for supplying the subsequent ELX terminals. If a new power supply is required,

the combination of an ELX9410 and an ELX9560 can be used so that further

ELX terminals can be added.