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Beckhoff Automation Pty. Ltd.

Building 4, 163–179 Forster Road
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+61 3 9912 5430
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www.beckhoff.com/en-au/

EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential

EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential

EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential

Run LED
Error LED 1
Power contact
+24 V
Power contact 0 V
+Input 1
-Input 1
GND
Shield
GND
Shield
Top view 
Contact assembly 
EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential

EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential

Measurement technology easily configured: Analog EtherCAT input terminals.

Measurement technology simply integrated: With the analog EtherCAT Terminals.

Measurement technology easily configured: Analog EtherCAT input terminals.

Measurement technology simply integrated: With the analog EtherCAT Terminals.

The EL3021 analog input terminal processes signals in the range between 4 and 20 mA. The current is digitized to a resolution of 12 bits and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal have differential inputs and possess a common, internal ground potential. The EL3021 is the single-channel version and is characterized by its fine granularity and electrical isolation. An open lead or overload condition are detected. The terminal status is relayed to the controller via the E-bus. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. The error LEDs indicate an overload condition and a broken wire.

Product status:

regular delivery

Product information

Technical dataEL3021
Number of inputs1 (differential)
Power supplyvia the E-bus
Signal current4…20 mA
Distributed clocks
Internal resistancetyp. 85 Ω + diode voltage
Input filter limit frequency1 kHz
Common-mode voltage UCMmax. 10 V
Conversion time0.625 ms default setting, configurable, multiplex
Resolution12 bit (16 bit presentation incl. sign)
Measurement error/ uncertainty< ±0.3% (relative to full scale value)
Surge voltage resistancemax. 35 V
Electrical isolation500 V (E-bus/signal voltage)
Current consumption power contacts
Current consumption E-bustyp. 130 mA
Bit width in the process imageinputs: 4 byte
Special featuresstandard and compact process image, activatable FIR/IIR filters, limit value monitoring
Operating/storage temperature-25…+60°C/-40…+85°C
Weightapprox. 55 g
Relative humidity95%, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/variable
Approvals/markingsCE, UL, ATEX, IECEx
Pluggable wiringfor all ESxxxx terminals
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*: AWG28…14,
st*: AWG28…14,
f*: AWG26…16
s*: AWG28…16,
st*: AWG28…16,
f*: AWG26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

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

Ordering information
EL3021EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential
ES3021EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential, pluggable wiring

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