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24/31

DocumentNo.:KE-4051-00

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2.4OutputofValvePosition

Thesignalisoutputfromtheterminalblock.

Outputofthevalvepositionisnotaffectedby1.1SettingValues.

Checkthenameplateoftheproductfortheoutputofthevalvepositionwhichwasspecifiedatthetimeof

purchase.

OutputSignal

Valve

Position

Indicator

4-20mA 1-5V

FullyClosed 0% 4mA 1V

FullyOpen 100% 20mA 5V

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2.5ErrorDetection

(1)HuntingError

Whenacontinuousactioncontinues1.5timesthesettime,itisjudgedasinthehuntingstate.Theoperation

isstillavailablebythecontrolinputsignal.Ifhuntingoccursduetoanyunexpectedexternalfactors,itmay

shortenthelifeofthemotor.Takepreventivemeasurebyreferringto 3WiringinⅢ Installation,Piping,

Wiring.Theactuatoroperatesasfollowswhenahuntingerrorisdetected.

・ERRORlampisturnedon.

・CURRENTVALVEPOSITIONonthevalvepositionindicatorflashes.

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(2)ConstraintError

Itisjudgedthatthevalveisintheconstraintstateifthevalvedoesnotreachthetargetpositionevenafter1.5

timesthesettimeelapsedafterinputtingthecommandtoopenthevalve.Whenthevalveisintheconstraint

state,alltheoperationsotherthanresettingcannotbeperformed.Performaresetoperationandrestorethe

actuatortothenormalstatereferringto3.ProtectiveFunctioninⅣOperation.

Whenaconstrainterrorisdetected,theactuatorisinthefollowingstate.

・Powersupplytothemotoriscutoff.

・Errorlampisturnedon.

・OpenCorrectorisoutputfromtheterminalblock.(30VDC/100mAorbelow）.

・【 L.O.C.】onthepositionindicatorflashes.

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 Removethecauseoftheconstraintstatebeforeperformingaresetoperationtothenormal

state.Otherwise,itmaydamagetheactuatorandthevalve.

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Kitz RDH Series User Manual

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