BECKHOFF
BECKHOFF EL1144 4-Channel Digital Input Terminal 12 VDC
Product Code:EL1144
Description
The EL1144 digital input terminal acquires the binary control signals and transmits them, in an electrically isolated form, to the higher-level automation unit. The EtherCAT Terminal contains four channels that indicate their signal state by means of light emitting diodes.
Technical dataEL1144 | ES1144Connection technology2-/3-wireNumber of inputs4Nominal voltage12 V DC“0” signal voltage< 2.4 V“1” signal voltage> 8.5 VInput currenttyp. 3.0 mAInput filtertyp. 10 µsDistributed clocks–Current consumption power contactstyp. 14 mA + loadCurrent consumption E-bustyp. 90 mAElectrical isolation500 V (E-bus/field potential)Configurationno address or configuration settingWeightapprox. 55 gOperating/storage temperature0…+55 °C/-25…+85 °CRelative humidity95 %, no condensationVibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4Protect. class/installation pos.IP 20/variablePluggable wiringfor all ESxxxx terminalsApprovalsCE, UL, ExTechnical Specifications
The EL1144 digital input terminal acquires the binary control signals and transmits them, in an electrically isolated form, to the higher-level automation unit. The EtherCAT Terminal contains four channels that indicate their signal state by means of light emitting diodes.
| Technical data | EL1144 | ES1144 |
|---|---|
| Connection technology | 2-/3-wire |
| Number of inputs | 4 |
| Nominal voltage | 12 V DC |
| “0” signal voltage | < 2.4 V |
| “1” signal voltage | > 8.5 V |
| Input current | typ. 3.0 mA |
| Input filter | typ. 10 µs |
| Distributed clocks | – |
| Current consumption power contacts | typ. 14 mA + load |
| Current consumption E-bus | typ. 90 mA |
| Electrical isolation | 500 V (E-bus/field potential) |
| Configuration | no address or configuration setting |
| Weight | approx. 55 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| 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 |
| Protect. class/installation pos. | IP 20/variable |
| Pluggable wiring | for all ESxxxx terminals |
| Approvals | CE, UL, Ex |