Specifications

Section-3 Operation
October 17, 2013
3‐78
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3.8.4 TransmitterI/OStatusScreen
Figure 3-72 LPU Transmitter I/O Status Screens
Fans
FanStatus
TheFa
nStatusfieldprovidesthesummaryfanstatusofthetwofrontpanelfans.Ifbothfansare
OK,theFanStatusfieldisGreen.Ifeitherfanhasawarning,oronefanisfaulted,theFanStatus
fieldisYellow.Ifbothfansarefaulted,theFanStatusfieldisRed.Theexciterwilloperateononly
onefan.
Tach1
Tach1an
dTach2fieldsprovidereadoutsofthetwoexciterfanspeeds.Thevaluewithinthe
parenthesisistheminimumallowablefanspeed.TheTach1andTach2fieldsarecolorcodedas
follows:OK=Green,Warning=Yellow,Fault=Red.
Tach2 (SeeTa
ch1)
PowerSup
ply(VDC)
Thevaluesgivenintheparenthesisprovideminimumandmaximumvoltagelimits,withthe
nominalsupplyvoltagegivennext.Iftheindicatedvoltageintherighthandwindowiswithin
range(10%ofnominal),itsbackgroundwillbeGreen.
InputBu
ffer Green=InputBufferisOK.Red=overfloworunderflow
SampleRa
teConverter
Buffer
Green=SampleRateConverterBufferOK.Red=overfloworunderflow
AdaptiveDSPHe
alth Green=ControlleriscommunicatingwiththeAdaptiveDSP.Red=fault
Table3‐70Status>TransmitterI/O
Field Explanation
Status
RFMute Greenisactive,Blueisinactive‐inputonpin6
AdaptiveReset Resetsadaptivecorrectiontablestodefaultvalues.Greenisactive,Blueisinactive‐inputonpin10
AdaptiveHold Holdscurren tadaptivecorrectiontables.Greenisactive,Blueisinactive‐inputonpin11
ExciterActive
Indicatesthattheexciterisac
tive,oron‐air.Inadualsystem,controlswhichLPUistheMasterand
whichistheSlave.Greenisactive/Master,Blueisinactive/Slave‐inputonpin14.
Note:InStandaloneoperation,theExciterActivecommandisignored.
Table3‐69XmtrHome>ExciterHome>Status>SignalProcessor