EL3172 | EtherCAT Terminal, 2-channel analog input, multi-function, ±10 V, ±20 mA, 16 bit
EL3172 | EtherCAT Terminal, 2-channel analog input, multi-function, ±10 V, ±20 mA, 16 bit
The EL3172 analog input terminal supplements the EL3174, thus 2-channel and 4-channel universal input terminals are now available in the EL31xx family. The EL3172 has two single parameterizable inputs. Signals in the range ±10 V or ±25 mA can be processed by each channel, therefore of course also unipolar 0…10 V or 0/4…20 mA. Each channel should be set by the controller to U or I mode via CoE. The input voltage or current is digitized with a resolution of 16 bits, and is transmitted (electrically isolated) to the higher-level automation device. With a technical measuring range of ±107% of the nominal range 10 V/20 mA and the 25 mA measuring range, the terminal also supports the commissioning with sensor values in the limit range and the evaluation according to NAMUR NE43. The two differential inputs are electrically isolated from each other and from the fieldbus.
Product status:
regular delivery
Product information
| Technical data | EL3172 |
|---|---|
| Number of inputs | 2 |
| Ground reference (input) | differential |
| Power supply | via the E-bus |
| Distributed clocks | yes |
| Distributed clock precision | << 1 µs |
| Internal resistance | > 200 kΩ | typ. 85 Ω |
| Input filter limit frequency | 5 kHz |
| Common-mode voltage UCM | max. 50 V (voltage and current measurement) |
| Dielectric strength | max. 30 V (current measurement) |
| Conversion time | minimum 150 µs |
| Measuring range, nominal | -10/0…+10 V | -25/-20/0/+4…+20/25 mA |
| Measuring range, technical | -10.73…+10.73 V | -25…+25 mA |
| Resolution | 16 bit (incl. sign) |
| Measurement error/uncertainty | < ±0.2% (at 25°C ±5°C, or else < ±0.3%, relative to full scale value) |
| Electrical isolation | channel/bus and channel/channel: functional separation 707 V DC type test |
| Current consumption E-bus | typ. 150 mA |
| Bit width in the process image | inputs: 16 byte |
| Configuration | no address or configuration setting |
| Special features | U/I parameterizable, ExtendedRange, standard and compact process image, activatable FIR/IIR filters |
| Operating/storage temperature | -25…+60°C/-40…+85°C |
| Weight | approx. 65 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 |
| Approvals/markings | CE |
| Protect. rating/installation pos. | IP20/variable |
| Housing data | EL-12-8pin |
|---|---|
| Design form | compact terminal housing with signal LEDs |
| 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 |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 |
| Stripping length | 8…9 mm |
| Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
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