Dolan-Jenner A242 User Manual

OperationManual

Fiber-Lite

®

A241/A242DCREGULATED
FIBEROPTICILLUMINATORS

AProductofDolanJennerIndustries

INTRODUCTION

TheA-241andA-242seriesisafamilyof150Watt,highlyregulated,DCpoweredquartzhalogenfiberopticilluminators.The
A-241andA-242illuminatorsaredesignedforawiderangeofapplicationsfromlaboratoryandindustrialillumination
applicationstoprecisemachinevisionillumination.TheA-241illuminatorconsistsofanA-241Ppowersupplyunit andone(1)
A-241Llampmodule.TheA-242illuminatorconsistsofanA-242Ppowersupplyunitandtwo(2)A-241Llampmodules.

OPERATION

Insertthepowercordintothepowerentrymoduleattherearofthepowersupply.Next,insertthepowercordintoa3wire
groundedACpowerreceptacle.(Theilluminatorpower
supplycomessetfromthefactoryaseither115VACor230VAC.ContacttheFactoryifyoudesiredoperationatanalternate
voltage.)

Connectthelamppowercable(s)totheA-241Llampmodule(s)(A-242hastwo(2)lamppowercables).
PresstheON(1)/OFF(0)rockerswitchonthefrontpaneltoON(1).Theilluminatorwilllightandisreadyforservice.

MANUALINTENSITYCONTROL

Useonlyapprovedpowercordsuppliedwiththeilluminator.

AlltheA-241P/A-242Pseriesilluminatorsareequippedwithafrontpanel,rotarysolidstateintensitycontrol.The0position
(whencontrolisturnedfullycounter-clockwise)correspondstothelowestilluminatorintensity.The100position(whencontrol
isturnedfullyclockwise)correspondstothehighestilluminatorintensity.

NOTE:

illuminatoratreducedintensitycanresultinsignificantlyextendedlamplife.

Continuousoperationoftheilluminatoratthehighestintensitylevelwillyieldratedlamplife.Operatingthe

Decrease Increase

Decrease

Increase

REMOTEINTERFACE

ToenabletheremoteinterfacemovethePANEL/REMOTEswitchonthefrontpaneltotheREMOTEposition.Whentheswitch
isintheREMOTEposition,thefrontpanelintensitycontrolisnotactive.IftheRemoteIntensityControlSignalisnotconnected,
theilluminatorwillrunatthemaximumintensitysettinguntiltheRemoteIntensityControlSignalisconnected.

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DIGITALMODELREMOTEINTENSITYCONTROL

TheDigitalRemoteIntensityControlusesan8bit,latching,parallelinputDigitaltoAnalogconverter.TheDigitalRemote
IntensityControlisCentronicsparallelcompatible.Refertothepinoutbelow.

NOT

DigitalRemoteControl-PinAssignments

PROGRAMMINGTHE
REMOTEDIGITAL
INTERFACE

PINDESCRIPTIONPINDESCRIPTION

1+5v10mAmax.10InputEnable(CE)
2DB0(LSB)11-22CommonGround
3DB123LampFail

Establishthedigitalcontrol
codeontopinsDB0(LSB)to
DB7(MSB).
PulltheInputEnablepin10
Lowtoloadthecodeintothe
remoteinterface.
PulltheInputEnablepin10
Hightolatchthecodeintothe
remoteinterface.Thedigital
codewillremainloadeduntila
newcodeisprovidedandtheInputEnablesignalistoggled.

4DB224RemoteOn/Off
5DB325Open
6DB4
7DB5
8DB6
9DB7(MSB)

IntensityLevel/DigitalCode

IntensityBinaryCodeHexCode

21.0volts(fullpower)11111111FFh

10.5volts(approx.1/2power)1000000080h
0volts(min.power)0000000000h

Aone(1)bitchangeinthedigitalcodeisequivalentapproximatelyto82millivolts.Thedigitalcodetolampvoltage islinearover
the0to255rangeofinputs.

RESPONSETIME

TheRemoteControlmodulewillrespondtothechangeindigitalinputwithinseveralmillisecondsoftheInputEnable falling
edge.However,duetothethermalinertiaofthelamp,theilluminationlevelofthelampmaytakeseveralhundredmillisecondsto
severalsecondstoresponddependingonthemagnitudeoftheintensitychange.Theresponsetimeisalsoafunctionofthe
individuallampcharacteristicsandmaychangefromlamptolamp.

Pin1

REMOTEON/OFFFUNCTION

TheRemoteOn/OfffunctionwilloperatewiththePanel/Remoteswitchinboththe
PanelandRemotepositions.Connecta+5vsignaltopin14toinhibitpowertothe
lamp.Thefanwillstilloperate.
Removethe+5vsignalfrompin24(pin14onAnalogmodels)toenablepowerto
thelamp.The+5vonpin1canbeusedforthisfunction.Useamanualswitch.relay
orFETswitchtoconnectandremovethe5vsignalonpin24(pin14onAnalog
models).

LAMPFAILSIGNAL

AsignalindicatingthatthelamphasfailedisavailableonPin23(pin17onAnalog
models).Thissignalisopencollector(seeFigureIV).Theusermustsupplythe
necessarycircuitrytoconnectthelampoutsignaltoasignalingdevice.The
maximumcurrentthroughthecircuitis10mA.WhenthesignalatPin
Analogmodels)

TheLampFailsignalwilldetectifcurrenthasstoppedflowingtothelampwhilethe
intensitycontrolsignalisnotat0volts,theilluminatorOn-OffswitchisintheOn
positionandtheRemoteOn-OffsignalisintheOncondition.TheLampFailsignal
willalsoindicateifthelampisnotproperlyseatedafteralampchangeorifthe
lamppowerconnectorisnotproperlyconnectedafteralampchangeorifthelamp
socketwasreplaced.

islogicHigh(5v)thelamphasfailed.

23(pin17on

+5v

Lamp
PowerOff

Pin24
Pin14onAnalogmodels

PIN23(17Analog)

47 W

LampFailCkt.

Lamp
PowerOn

10K

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