BECKHOFF EL3174 4-Channel Analog Input
BECKHOFF
Product number: EL3174
Producer: BECKHOFF
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Datasheets for BECKHOFF EL3174 4-Channel Analog Input
Description for BECKHOFF EL3174 4-Channel Analog Input
The EL3174 analog input terminal has four individually parameterisable inputs. Signals in the range from -10/0 to +10 V or -20/0/+4 to +20 mA can be processed via each channel. Physically, the voltage and current signals should be connected to different terminal points. Each channel should then be set by the controller/TwinCAT to U or I mode via CoE. The voltage inputs operate differentially; the current inputs are single-ended. All inputs are digitised with a resolution of 16 bits and transmitted, electrically isolated, to the higher-level automation device. With a technical measuring range of ±107 % of the nominal range, the terminal also supports commissioning with sensor values in the limit range and diagnostics according to NAMUR NE43.Technical dataEL3174Number of inputs4Power supplyvia the E-busTechnologyU differential, I single-endedOversampling factor–Distributed clocksyesDistributed clock precision<< 1 µsInternal resistance> 200 kΩ | typ. 85 ΩInput filter limit frequency5 kHzCommon-mode voltage UCMmax. 35 V (voltage measurement)Dielectric strengthmax. 30 V (current measurement)Conversion timeminimum 150 µsMeasuring range, nominal-10/0…+10 V | -20/0/+4…+20 mAMeasuring range, technical-10.73…+10.73 V | -21.47…+21.47 mAResolution16 bit (incl. sign)Measuring error< ±0.3 % (relative to full scale value)Electrical isolation500 V (E-bus/signal voltage)Current consumption power contacts–Current consumption E-bustyp. 200 mABit width in the process imageinputs: 16 byteConfigurationno address or configuration settingSpecial featuresU/I parameterisable, ExtendedRange, standard and compact process image, activatable FIR/IIR filtersWeightapprox. 65 gOperating/storage temperature-25…+60 °C/-40…+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/variableApprovals/markingsCE, UL
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