Emerson MICRO MOTION 2700 - Page 19

Integratethemeterwiththecontrolsystem
♦Example:CongureFrequency=Flow
Youwantthefrequencyoutputtoreportallowratesupto2000kg/min.
Thefrequencyreceivingdeviceisconguredfor10pulses/kg.
Solution:
Setparametersasfollows:
▪RateFactor:2000
▪FrequencyFactor:333.33
2.3.3CongureFrequencyOutputMaximumPulseWidth
DisplayNotavailable
ProLinkII
ProLink→Conguration→Frequency/DiscreteOutput→FreqPulseWidth
Communicator
5,3,3,5/6
DetailedSetup→CongOutputs→FO/DOCong→MaxPulseWidth
FrequencyOutputMaximumPulseWidthisusedtoensurethatthedurationoftheONsignalis
greatenoughforyourfrequencyreceivingdevicetodetect.
TheONsignalmaybethehighvoltageor0.0V,dependingonFrequencyOutputPolarity,as
showninT able2-7.
Table2-7InteractionofFrequencyOutputMaximumPulseWidthandFrequencyOutputPolarity
PolarityPulsewidth
ActiveHigh
ActiveLow
CongurationandUseManualSupplement
13