
3
24V 24W Power Supply
PS-242
! ATTENTION
Thisusermanualcontainsinformationnecessaryforthesafeandcorrectoperation
of the device. Before mounting the device, please read this user manual carefully and
pay attention to warnings.
Safety and Warnings
! ATTENTION Donotopenthedeviceunderanycircumstances.Anopeneddevice’s
warranty will become void.
! ATTENTION The device must be mounted only by qualied personnel with
necessary precautions against electric shock in place. Incorrect connection may
create dangerous result for people and environment.
Incorrectconnectionmayresultinpermanentdamagetotheperformanceofthe
device.
! ATTENTIONThedevicewarmupduringoperating.
• Beforeyouenergizethedeviceorremovethedevicefrommains,makesurethat
thesupplycableisn’tconnectedtomains.
• SupplyinputofthedevicemustbeconnectedaccordingtoEN60950standards.
! A supply voltage greater than 265V AC may result in an explosion in the device
or in damages to the user.
• Device supply must be at a sucient power capacity and must comply with
security standards.
• CablesconnectedtotheoutputsofPS-242mustbesuitableforthemaximum
currentthatPS-242canprovide.
• Afterdeviceconnectionisnished,connectionpointsmustbeprotectedagainst
accidental contacts.
• Mountingof thedevicemustbedone verticallyasshowninFigure-1,withAC
supplyinputatthebottomsideandtheDCoutputatthetopside.
• Thedevicemustbeproperlyventilated.
1- Introduction
1.1 Applications :
PS-242isa24Wswitchingmodepowersupplyusedinindustrialandcivilareas.Itis
designedaccordingtoDINboxstandardsforeaseofmountingonpanels.
1.2 General Features :
• Wideinputvoltagerange85-265VAC(50-60Hz)/110-350VDC
• 24VDC1ADC24Woutputpower
• StatusnoticationLED(green)
• Higheciencydevice
• Shortcircuit,overloadprotection
• Thermalprotection
• Class2device,noearthconnectionisnecessary
• DIN3case
• IP20Protectionclass
• CE,EN60950,EN61204
1.3 Operation :
InthedeviceshowninFigure1,parts1and2aretheinputvoltageconnectionpoint
ofPS-242,connectthesupplytothesepoints.
PS-242Sections3and4inFigure1aretheDCoutputportionofthePS-242.From
these points, the device gives 24VDC output.When the PS-242 is powered, the
greenLED5numberingurewilllightup.Whenthisledislit,itindicatesthatPS-242
is working and producing output voltage.
2- Connection and Mounting
Wire Connection
• ACInput(1,2):Undernominalload,PS-242drawsmaximum0.6AACand
minimum0.425AAC.Wirethicknessmustbeselectedaccordingtothesevalues.
Maximum14AWGstrandedwire(2.5mm2)or12AWGsolidwire
(4mm2)canbeconnectedtotheinputterminal.
• DCoutput(3,4):Outputcurrentis1ADC.Wirethicknessmustbeselected
accordingtothisvalue.Maximum14AWGstrandedwire(2.5mm2)or12AWGsolid
wire(4mm2)canbeconnectedtotheoutputterminal.
• Intermsofcomplyingwithstandards,usecopperwiresthatcanoperateat75oC.
Mounting (Figure 2)
• PS-242canbemountedonDINrailswhichcomplywithEN50022standards.
• Mountthedevicevertically.Whenmountingthedevice,itisrecommendedthat
theDCoutputsidestaysontopside.
• Mindthedevice’sventilationwhenmountingthedevice.Afterthemounting,it
isrecommendedtoleavea1cmspacebetweenPS-242anddevicesnexttoit.
Figure-2
3- Device connection and operation
Input (section 1,2)
• Thepartwhicharenumberedas1and2showninFigure-3aretheLineand
NeutralsupplyinputsofPS-242.
• 85-265VACinputvoltagecanbeconnectedbyusingtheLandNterminals.
• 110-350VDCinputvoltagecanbeconnectedbyusingtheLandNterminals.
• Thedevicehasainternalfuse.
!The fuse of the device can only be changed at the factory.
• Extrabackupfusecanbeconnectedtotheinput.
• AppropriatebackupfusemustbeconnectedforDCinputvoltage.
• Thedeviceinputisprotectedagainstlowvoltage,itisnotprotectedagainst
high voltage.
Output (section 3,4)
• Thepartwhicharenumberedas3and4inFigure-3aretheDCvoltageoutput
ofPS-242.
• Positiveandnegativepartsoftheoutputvoltageareshownwith3(+)and4(-).
• Outputvoltageis24VDC.
• Deviceoutputisprotectedagainstshortcircuit.
• Whentheoutputisshortedcircuited,deviceturnsocompletelyandturnson
again after the short circuit condition is resolved.
• Thedevicecanoperateuptoanambienttemperatureof+55°C.
PS-242 has LED indicator (section 5 in Figure-1)
• Whenthere’snoenergy:LEDiso.
• Normaloperationmode:LEDison.
• Shortcircuit:LEDiso.
4- Technical Properties:
Input
Nominalinputvoltage100-240VAC/130-320VDC
Inputvoltagerange 85-265VAC/110-350VDC
Frequency 45-65Hz/0Hz
Generatedcurrent(@24W) 0.25-0.6AAC(±10%)
Startingcurrent <15A
Internalfuse 2.5A
Estimatedopeningtimeafter
nominalvoltageissupplied <1s(@220VAC-24W)
Mainsbutering >20ms(@220VAC-24W)
Transientsurge
Voltageprotection Varistor
Lineragulation <1%
Figure-1