BECKHOFF EL3773 Power Monitoring Oversampling Terminal
BECKHOFF
Product number: EL3773
Producer: BECKHOFF
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Datasheets for BECKHOFF EL3773 Power Monitoring Oversampling Terminal
Description for BECKHOFF EL3773 Power Monitoring Oversampling Terminal
The EtherCAT Terminal EL3773 is a power monitoring terminal for state monitoring of a 3-phase AC voltage system. For each phase voltages up to 288 Veff/410 V DC and currents up to 1 Aeff/1.5 A DC are sampled as instantaneous values with a resolution of 16 bits. The six channels are measured simultaneously based on the EtherCAT oversampling principle with a temporal resolution of up to 100 µs and passed on to the control system. The control system has sufficient computing power for true RMS or performance calculation and complex custom algorithms based on the measured voltages and currents. Through the oversampling principle the terminal is able to measure at significantly shorter intervals than the cycle time of the control system. AC and DC parameters must be connected and measured with a common reference potential. The EL3773 supports distributed clocks and can therefore measure synchronous with other EtherCAT devices.Technical dataEL3773Number of inputs3 x current, 3 x voltageTechnology3-phase power monitoring for alternating/direct voltagesOversampling factorn = 1…100 selectableDistributed clocksyesConversion timemin. 100 µs, all channels simultaneouslyMeasured valuescurrent (I1, I2, I3), voltage as instantaneous values (oversampling)Measuring voltagemax. 500 V AC 3~ (ULX-N: max. 288 V AC), max. 410 V DCMeasuring currentmax. 1 A (AC)/1.5 A (DC), via measuring transformers x A AC/1 A ACResolution16 bit (incl. sign)Measuring error0.5 % relative to full scale valueElectrical isolation2500 VCurrent consumption power contacts–Current consumption E-bus200 mASpecial featuresoversampling, AC/DC measurement, single-phase operation also possible, adjustable hardware filtersWeightapprox. 75 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/variableApprovalsCE, UL
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