Delphin ProfiMessage - 9.1.5.4 Digital inputs; 9.1.5.5 Counter

ProfiMessage
Channelscanbeindividuallyscaled.Scalingtakesplaceintherequiredunit(e.g.
0to100µmfordistance/proximitysensorsor0to50gforaccelerationsensors)
Application
Analogueoutputsareusedasmonitorsforspecificmeasurementdata(e.g.rota-
tionspeedorvibrationamplitude).Alsoassignalgenerators(z.B.set-point
ramp).
9.1.5.4 Digitalinputs
Properties
4digitalinputs.Potentialisolationupto2.5kV.Polarityprtectionupto1kV.
Lowlevel0…1.5V/0...1.5mA.Highlevel3.5...90V/3mA.
Refresh rate
Digitalinputsaresampledat1kHz(1ms).Theminimumpulsewidthofasignal
thatcanbeanalysedis1ms.Recommendedpulsewidthis>2.5ms.Maximum
continuoussignalfrequencyis50Hz.
Application
Digitalinputsareusedastriggersourceswithsimultaneousfrequencyorrotation
speed(forrotatingmachinery)measurementandphasing(reference)acquisition
aresimultaneouslycarriedout.
9.1.5.5 Counter
Properties
2or4digitalinputs(seeabove)areeachequippedwith16-bitcounters.Choiceof
pulsecountinginthe0to65535range,orfrequencymeasurementinthe0.2Hz
to30kHzrange.Automaticswitchingofmeasurementmodeat100Hz
Refresh rate
Countersaresampledat4Hz(250ms).Theminimumpulsewidthofasignalthat
canbeanalysedis0.02ms.Recommendedpulsewidthis>0.1ms.
Frequency measurement precision
Basicaccuracyis±1%oftheinputfrequencyupto100Hzand±1Hzabove
100Hz.
Application
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual