Azbil DCP31 - Page 130

7-20
Chapter 7. PARAMETER SETUP
•TheMFBdisconnectedalarmdoesnotoccur.
•TheerrorbetweenactualmotorvalveopeningandestimatedMFB
valueiscompensatedbyforciblycontinuingmotoroperationin
theclosedoropendirectionswhenMVis0.0%and100%.

.-A t
(motor valve opening automatic adjustment)
0: Adjustmentdisabled
1: Adjustmentenabled
Thisparameterautomaticallymeasuresthemotorfullyclosed
position,fullyopenposition,andclose-opentimes.Theresultsof
calculationareautomaticallywrittento
.-C L
,
.-O P
and
.-t
.
•AdjustmentMethodandMotorFunctions
 1. Set
.-C
to0or1.
 2. Set
.-A t
to1,andpress
ENT
.
  Ifsetto1already,press
ENT
twicetoenterautomaticadjust-
ment.
 3. Automaticadjustmentiscarriedout.
  - 
C A .C L
isdisplayedontheupperdisplay,andtheclosed-side
relayturnsON.
  - Themotoroperatestotheclosedside,andtheMFBcount
valueisdisplayedonthelowerdisplay.Whenthecounthas
stabilized,fullyclosedadjustmentiscompleted,andthe
countvalueiswrittento
.-C L
.
  - 
C A .O P
isdisplayedontheupperdisplay,andtheclosed-
siderelayturnsON.
  - Themotoroperatestotheopenside,andtheMFBcount
valueisdisplayedonthelowerdisplay.Whenthecounthas
stabilized,fullyopenadjustmentiscompleted,andthecount
valueiswrittento
.-O P
.
Thetimeittookfromfullyclosedtofullyopeniswrittento
.-t
.However,notethatifthistimeis240.0sormore,the
timeistakenas240.0s.
  - Whenalladjustmentsarecompleted,thecontrollerreturns
tothebasicdisplaystate.
 4. Tocancelautomaticadjustment,press
DISP
.
  Whenautomaticadjustmentbegins,youcannotpressanykeys
otherthan
DISP
.
DISP
isusedforcancelingadjustment.
Thefollowinginstancesareregardedaserrors.Inthesein-
stances,thefactorysettingsarereturnedto,and
A L 1 2
is
displayed.The
A L 1 2
displaycanbeclearedonlywhenauto-