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Beckhoff Automation Pty. Ltd.

Building 4, 163–179 Forster Road
Mount Waverley, VIC 3149, Australia

+61 3 9912 5430
info@beckhoff.com.au
www.beckhoff.com/en-au/

EL4028 | EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit

EL4028 | EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit

EL4028 | EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit

Run LED 1
Run LED 3
Run LED 5
Run LED 7
Run LED 2
Run LED 4
Run LED 6
Run LED 8
Power contact
+24 V
Power contact 0 V
Output 1
Output 3
Output 5
Output 7
Output 2
Output 4
Output 6
Output 8
Top view 
Contact assembly 
EL4028 | EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit

EL4028 | EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit

The EL4028 analog output terminal generates signals in the range between 4 and 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated. Ground potential for the output channels of the EtherCAT Terminal is common with the 24 V DC supply. The output stages are powered by the 24 V supply. The EL4028 combines eight channels in one housing. The signal state of the EtherCAT Terminal is indicated by light emitting diodes.

Product status:

regular delivery

Product information

Technical dataEL4028
Connection technology1-wire, single-ended
Number of outputs8
Power supply24 V DC via power contacts
Signal current4…20 mA
Distributed clocksyes
Distributed clock precision<< 1 µs
Load< 150 Ω
Output error< 0.1 % (relative to end value)
Resolution12 bit
Electrical isolation500 V (E-bus/signal voltage)
Conversion time~ 400 µs
Current consumption power contactstyp. 50 mA
Current consumption E-bustyp. 100 mA
Bit width in the process image8 x 16 bit AO output
Special featuresOptional watchdog: user-specific output value with ramp; user synchronization can be activated.
Weightapprox. 60 g
Operating/storage temperature-25…+60 °C/-40…+85 °C
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Relative humidity95 %, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
Protect. rating/installation pos.IP20/variable
Pluggable wiringfor all ESxxxx terminals
Approvals/markingsCE, UL, ATEX, IECEx
Ex markingATEX:
II 3 G Ex ec IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
Housing dataEL-12-8pinES-12-8pin
Design formcompact terminal housing with signal LEDsterminal housing with pluggable wiring level
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
s*: 0.08…1.5 mm²,
st*: 0.08…1.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWGs*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
s*: AWG 28…16,
st*: AWG 28…16,
f*: AWG 26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

Ordering information
EL4028EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit
ES4028EtherCAT Terminal, 8-channel analog output, current, 4…20 mA, 12 bit, pluggable wiring

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