Curtis Instruments 1236 - Speed Mode Tuning Steps


#URTIS-ANUAL/3 
D+PTYPICALLY DOESNOT NEED TOBE CHANGED AS THE DEFAULT VALUEWILL WORK
WELL IN MOST APPLICATIONS 4HIS PARAMETER CONTROLS HOW TIGHTLY THE AC
TUAL MOTOR SPEED
WILL TRACK THE REQUESTED SPEED TRAJECTORY SPEED TRAJEC
TORYIS
SETBYTHEACCELDECELANDBRAKERATES  
)F
YOUWANTTOADJUSTTHE+PFORLOOSERORTIGHTERFOLLOWINGOFTHESPEED
TRAJECTORYFOLLOWTHESEGUIDELINES
s 3ETTHEFOLLOWINGPARAMETERS"EFORESETTINGTHEMMAKEANOTE
OFTHEIRPRESENTDEFAULTSETTINGSSOYOUCANRETURNTHEMTO
THESEORIGINALVALUESATTHEENDOFTHISPROCEDURE


)F
YOURVEHICLEHASAN%-"RAKESETTHE"RAKE4YPEPAGE
TO4HISSETTINGWILLRELEASETHE%-"RAKEASSOONAS
INTERLOCKISASSERTED


)NTHE3PEED-ODE
w2ESPONSEMENUSETALLTHEACCELAND
DECELRATESTOTHEIRFASTESTVALUESSECONDSTHISALLOWS
BETTEROBSERVATIONOFTHESYSTEMRESPONSE


)N
THE3PEED-ODE
w3PEED#ONTROLLERMENUSETTHE-AX
3PEEDTOLOWVALUE≈RPMASHIGHSPEEDOPERATION
ISNOTNEEDED
TOOBSERVESYSTEMRESPONSE

 3ET
3OFT3TOP3PEEDPARAMETERTORPMTODISABLETHESOFT
STOPSPEEDFUNCTIONSEE2ESTRAINTMENUPAGE
s #YCLE+3)TOCLEARANYFAULTS
s 5SING VERY QUICK PULSING THROTTLE MOVEMENTS INCREASE THE
THROTTLEAND THENRELEASEIT TO 4HEINTENT ISTO GIVETHE
SPEEDCONTROLLERTORQUEIMPULSES
s )NCREASE+PANDREPEATTHETHROTTLETESTS)NCREASE+PUNTILYOU
STARTTONOTICEMARGINALSTABILITYNORMALLYMOTORBOUNCINGOR
CONTINUOUSOSCILLATIONINTHEGEARSISHEARD.OTE)TISPOSSIBLE
THATVERYHEAVYVEHICLESWILLNOTEXPERIENCEMARGINALSTABILITY
EVENATTHEHIGHESTSETTINGOF+P
s /NCE THE +P SETTING FOR MARGINAL STABILITY IS FOUND REDUCE
THE+PVALUEINTHEBYABOUTONETHIRDIElNAL+P
MARGINALSTABILITY+P
s )FYOUWILLBEUSING3PEED-ODE%XPRESSENTERTHIS+PVALUE
FORTHE+PPARAMETERINTHE3PEED-ODE%XPRESSMENU
s 3ETTHE"RAKE4YPE!CCEL$ECEL2ATES-AX3PEEDAND3OFT
3TOP3PEEDBACKTOTHEIRORIGINALVALUES
E)NTHE3PEED-ODE
w2ESPONSEMENUADJUSTTHElVE!CCELAND$ECEL2ATE
PARAMETERS AS NECESSARY WHILE MOVING THE THROTTLE TO DIFFERENT POSITIONS
IENEUTRALTOFULLTHROTTLEHALFTHROTTLETOFULLTHROTTLEFULLTHROTTLETOHALF
THROTTLEFULLTHROTTLETONEUTRALNEUTRALTOLOWTHROTTLEETC&OR!#PUMP
APPLICATIONSTHESEPARAMETERSARETYPICALLYSETVERYFASTFORQUICKRESPONSE
TOHYDRAULICINPUTS
45.).''5)$%