Curtis Instruments 1234 - Page 96

#URTIS-ANUAL/3 

6#,
4HISALLOWSTHE6#,TOEITHERMULTIPLY4HROTTLE?-ULTIPLIERORDIVIDE
4HROTTLE?-ULTIPLIERTHENOMINALTHROTTLEVALUE4YPICALLYTHEDEFAULT
MULTIPLIERISSETTOTHUSHAVINGNONETEFFECT"OTH4HROTTLE?-ULTIPLIER
AND4HROTTLE?/FFSETCANBEPOSITIVEORNEGATIVE
4HEOUTPUTOFTHEMULTIPLYINGANDSUMMINGNODESISA6#,VARIABLE
CALLED-APPED?4HROTTLEWHICHISDISPLAYEDINTHE-ONITOR
w)NPUTSMENU
#HECKINGTHEVALUEOF-APPED?4HROTTLEUSINGTHEISAGOODWAYTOSEEIF
YOUR4HROTTLE-ENUPARAMETERSARESETCORRECTLY!6#,PROGRAMCANCONTROL
THETHROTTLEBYCHANGINGTHEVARIABLES6#,?4HROTTLEONLYIF4HROTTLE4YPE
4HROTTLE?-ULTIPLIERAND4HROTTLE?/FFSET4HEEFFECTOFTHESEVARIABLESCANBE
OBSERVEDAS-APPED?4HROTTLEINTHE-ONITOR
w)NPUTSMENU
-APPED?4HROTTLENEXTPASSESTHROUGHALIMITERTHATISACTIVEONLYIFAPUMP
MOTORISBEINGOPERATED0UMP%NABLE/NSEEPAGE7HENACTIVETHIS
FUNCTIONLIMITSTHETHROTTLESIGNALTOONLYPOSITIVEFORWARDMOTIONWHICHIS
APPROPRIATEFORCONTROLLINGAHYDRAULICPUMPMOTOR
4HETHROTTLESIGNALCONTINUESTOASELECTORSWITCHTHATWILLSETTHETHROTTLE
SIGNALIFANYOFTHEFOLLOWINGCONDITIONSISPRESENT)NTERLOCK?3TATE/FF
SEEPAGEAFAULTHASSETTHROTTLEREQUESTSEETHE4ROUBLESHOOTING
#HART4ABLEORIF-AIN?3TATE≠ORSEEPAGE
!FTER
THIS SELECTOR
SWITCH THE THROTTLE SIGNAL IS A 6#, VARIABLE CALLED
4HROTTLE?#OMMANDWHICHISDISPLAYEDINTHE-ONITOR
w)NPUTSMENU
4HROTTLE?#OMMANDISTHElNALVALUEOFTHETHROTTLESIGNALCHAINTHATISINPUT
TOTHE#ONTROL-ODE0ROCESSINGBLOCKSEE&IGURE#HECKINGTHEVALUEOF
4HROTTLE?#OMMANDUSINGTHEISAGOODWAYTOSEETHElNALTHROTTLESIG
NAL
)F!"34HROTTLE?#OMMANDCOUNTTHEMOTORCONTROLLERWILLOUTPUT
SIGNALSTOTHEMOTORTOMAKEITSPIN
&OR INVESTIGATING WHY A MOTOR IS NOT SPINNINGIT IS USEFULTO USE THE

TOCHECKTHESTATE OFTHETHROTTLESIGNALFROMBEGINNINGTO ENDUSING
4HROTTLE?0OT?2AW-APPED?4HROTTLEAND4HROTTLE?#OMMAND/NCETHESE
VALUESAREKNOWNTHE-OTOR#OMMAND$IAGRAM&IGURECANBEUSEDTO
lNDHOWTHATSIGNALPROGRESSEDFROMINPUTTOlNALVALUE
4HEFOLLOWINGTHROTTLEPROCESSINGVARIABLESAREACCESSIBLEBY6#,
 6#,6!2)!",% !##%33 $%3#2)04)/.
4HROTTLE?0OT?2AW 2EAD/NLY 6OLTAGEMEASUREMENTATPINSCALEDFOR
  THEPROPERWIRING
4HROTTLE?0OT?/UTPUT 2EAD/NLY 4HROTTLEPOTINPUTVALUEAFTERBEINGSCALEDFOR
  THEPROPERWIRING&ORUSEIN6#,PROGRAM
   WHEN4HROTTLE4YPE
/3?4HROTTLE 2EAD/NLY 4HROTTLEPOTVALUEAFTERMAPPINGTOBEUSEDIN
  6#,
WHEN6#,
4HROTTLE%NABLE/NAND
  4HROTTLE4YPE
n
-APPED?4HROTTLE 2EAD/NLY 4HROTTLEPOTVALUEAFTERMAPPING
6#,?4HROTTLE 2EAD7RITE 6#,ACCESSIBLETHROTTLECOMMAND
4HROTTLE?-ULTIPLIER 2EAD7RITE -ULTIPLIESORDIVIDESTHETHROTTLESIGNAL
4HROTTLE?/FFSET 2EAD7RITE 0ROVIDESAOFFSETTOTHETHROTTLESIGNAL
4HROTTLE?#OMMAND 2EAD/NLY #OMMANDRESULTINGFROMTHROTTLEPROCESSING