![EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential](https://multimedia.beckhoff.com/media/el3021_es3021__web_preview.png)
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 data | EL3021 |
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Number of inputs | 1 (differential) |
Power supply | via the E-bus |
Signal current | 4…20 mA |
Distributed clocks | – |
Internal resistance | typ. 85 Ω + diode voltage |
Input filter limit frequency | 1 kHz |
Common-mode voltage UCM | max. 10 V |
Conversion time | 0.625 ms default setting, configurable, multiplex |
Resolution | 12 bit (16 bit presentation incl. sign) |
Measurement error/uncertainty | < ±0.3% (relative to full scale value) |
Surge voltage resistance | max. 35 V |
Electrical isolation | 500 V (E-bus/signal voltage) |
Current consumption power contacts | – |
Current consumption E-bus | typ. 130 mA |
Bit width in the process image | inputs: 4 byte |
Special features | standard and compact process image, activatable FIR/IIR filters, limit value monitoring |
Operating/storage temperature | -25…+60°C/-40…+85°C |
Weight | approx. 55 g |
Relative humidity | 95%, no condensation |
Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
Pluggable wiring | for all ESxxxx terminals |
Approvals/markings | CE, UL, ATEX, IECEx |
Protect. rating/installation pos. | IP20/variable |
Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
Housing data | EL-12-8pin | ES-12-8pin |
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Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
Material | polycarbonate | |
Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
Side by side mounting by means of | double slot and key connection | |
Marking | labeling of the BZxxx series | |
Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver | |
Connection cross-section | s*: 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 AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
Stripping length | 8…9 mm | 9…10 mm |
Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
Ordering information | |
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EL3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential |
ES3021 | EtherCAT Terminal, 1-channel analog input, current, 4…20 mA, 12 bit, differential, pluggable wiring |
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