Samson 3730-3 Mounting And Operating Instructions - Tion

 74  

EB 8384-3 EN

Start-up and settings

Enter the pin position:

mm

Pin position

Default:No

Turn    Code 4

Press  ,Code

4blinks.

Turn   Pinpositiononlever(seerelevant

sectiononattachment)

Press  .

Select the initialization mode:

Initmode

DefaultMAX

Turn    Code 6

Press  ,Code

6blinks.

Turn    

MAN

Press  toconfirmthe

MAN as the initial-

izationmode.

Enter OPEN position:

Manualsetpoint

(currentangleofrotationis

indicated)

Turn    Code 0

Press  ,Code

0blinks.

Turn    

MAN

Press  .

Turn    Code 1

Press  ,Code1blinks.

Turn  untilthevalvereachesitsOPENpo-

sition.

Press  toconfirmtheOPENposition.

Start initialization:

Î

PressINITkey.

7.6.4  SUb – Substitute calibra-

tion

Acompleteinitializationproceduretakes

several minutes and requires the valve to 

movethroughitsentiretravelrangeseveral

times.Thisinitializationmode,however,is

anemergencymode,inwhichthecontrol

parameters are estimated and not deter-

minedbyaninitializationprocedure.Asa

result,ahighlevelofaccuracycannotbeex-

pected.Youshouldalwaysselectadifferent

initializationmodeiftheplantallowsit.

Thesubstitutecalibrationisusedtoreplacea

positionerwhiletheprocessisrunning.For

thispurpose,thecontrolvalveisusuallyfixed

mechanicallyinacertainposition,orpneu-

maticallybymeansofapressuresignal

whichisroutedtotheactuatorexternally.

Theblockingpositionensuresthattheplant

continues to operate with this valve position.

Byenteringtheblockingposition(Code35),

closingdirection(Code34),pinposition

(Code4),nominalrange(Code5)anddi-

rectionofaction(Code7),thepositionercan

calculatethepositionerconfiguration.