Pepperl+Fuchs PS3500-DM Owner's manual

Brand: Pepperl+Fuchs

Model: PS3500-DM

Type: Owner's manual

This manual is also suitable for

REDUNDANT POWER SUPPLY

INSTALLATION & OPERATION MANUAL

PROCESS AUTOMATION

PS3500 N+1

Subject to modifications www.pepperl-fuchs.com

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Germany: +49 621 776 2222

PS3500 N+1 Redundant Power Supply

Contents

1 Introduction .................................................................................................................. 2

2 Instructions ................................................................................................................... 3

2.1 Intended use .......................................................................................................... 3

2.2 Product label.......................................................................................................... 3

2.3 Mounting................................................................................................................ 4

3 Specications ............................................................................................................... 5

3.1 Powersupplymodulespecications ...................................................................... 5

3.2 Systemspecications ............................................................................................ 7

3.3 Dimensions ............................................................................................................ 8

4 TemperatureConsiderations ...................................................................................... 9

4.1 Convection cooling ................................................................................................ 9

4.2 Forced cooling ..................................................................................................... 10

4.3 Clearances .......................................................................................................... 10

5 TechnicalConcept ...................................................................................................... 11

5.1 N+1 redundancy .................................................................................................. 11

5.2 Hot swapping ....................................................................................................... 11

5.3 Automatic load-sharing ........................................................................................ 11

5.4 Variable output voltage ........................................................................................ 11

5.5 Alarm output ........................................................................................................ 11

5.6 Internal diagnostics, recovery, and LEDs ............................................................. 12

6 Wiring .......................................................................................................................... 13

6.1 Specicconditionsofuse .................................................................................... 13

6.2 Input supply line ................................................................................................... 13

6.3 Inputcongurations ............................................................................................. 14

6.4 Outputconguration ............................................................................................ 16

6.5 Alarmconguration .............................................................................................. 17

7 OutputCongurations ............................................................................................... 18

8 Operations .................................................................................................................. 19

8.1 Supply line checks ............................................................................................... 19

8.2 Output line checks ............................................................................................... 19

8.3 Alarm lines checks ............................................................................................... 19

8.4 Commissioning .................................................................................................... 19

9 Maintenance&Repair ............................................................................................... 20

10 Troubleshooting ......................................................................................................... 21

11 SpecialWarnings! ...................................................................................................... 22

12 Notes ........................................................................................................................... 23

Subject to modifications www.pepperl-fuchs.com

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PS3500 N+1 Redundant Power Supply

1 Introduction

ThismanualappliestothePepperl+FuchsPS3500system,whichconsistsoftheproducts

shown in Table 1:

Modelnumber Description

PS3500-PM-1.24.15 N+1 power supply module, 24 V DC @ 15 A

PS3500-TB-3 Backplaneforthreepowermodulesandonediagnosticmodule

PS3500-TB-6 Backplaneforsixpowermodulesandonediagnosticmodule

Table 1. PS3500 series product range

Themanualassumesthattheuserhastechnicalknowledgeofandexperiencewithpower

supplysystems,explosionprotection,aswellasplanningandinstallingpowersystems.It

doesnotprovideanintroductiontopowersystemsorexplosionprotectionforinexperienced

users.Thecontentofthismanualappliesinconjunctionwiththerespectivedatasheets,

DeclarationofConformityandCerticateofCompliance.Forfurtherinformationpleaserefer

to the Pepperl+Fuchs "Wiring and Installation Guide."

Substantialamountsofvoltage,currentandpowerareprovidedbythesupply.Readthis

manualcarefullybeforeinstallationandoperationtoavoidriskofdamage,failures,or

personalinjury.Takegreatcareoninputandoutputsupplylinestoprotectfromtheeectsof

short circuits and provide the required ground connections.

Subject to modifications www.pepperl-fuchs.com

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PS3500 N+1 Redundant Power Supply

2 Instructions

2.1 Intended use

The PS3500 product range may be installed in Zone 2 or Class I/Division 2

hazardousareas.TypeofprotectionisExecnC(non-arcing,sealeddevice)

forZone2GasGroupsIIC,andnon-incendiveforuseinClassIDivision2Gas

GroupsA,B,C,andD.Pleaseconsultlocalelectricalcodesforhazardouslocation

installation guidelines.

NOTE:ThisequipmentissuitableforuseinClassI,Division2;GroupsA,B,C,DandClass

I,Zone2;GroupIICornonhazardouslocationsonly.

TheDeclarationofConformity,CerticateofComplianceanddatasheetsareconsidered

asanintegralpartofthisusermanual.Thedatasheetscontaintheelectricaldataofthe

DeclarationofConformityandtheCerticateofCompliance.Lawsand/orregulations

governing the use or intended use must be observed.

ThePS3500productsareonlyapprovedforproperprofessionaluseinaccordancewith

the intended purposes. Improper handling will void any claim made under the warranty as

wellasanymanufacturer’sliability.ThePS3500systemcanonlybeoperatedbytrained

professionalsinaccordancewiththismanual.

2.2 Productlabel

Forproperidenticationandoperation,examinethesystemmodelnumbernameplateto

identifytheappropriateapprovals,areaclassication,andtypeasnotedinFigure1:

Figure 1. Power Supply Module

Figure 2. Backplane

Warning

Subject to modifications www.pepperl-fuchs.com

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PS3500 N+1 Redundant Power Supply

2.3 Mounting

2.3.1 Mounting PS3500 backplanes (termination boards) PS3500-TB-*

ThePS3500backplanesaredesignedforprotectionclassIP20inaccordancewithEN60529and

must be protected against adverse ambient conditions such as water or dirt ingress.

Thebackplanechassisismountedonaatmetalsheetplateorontwoproperlyspacedrails.Drill

four5mm(0.2")DIAholesandtapthem6MA(or1/4"NC).Insertthetopandbottomscrewsbut

leaveagapofapproximately5mm(0.2")betweenthescrewheadsandmountingsurface.Slide

thechassisthroughthekeyedholesandhangitrmlyonthescrewheads.Proceedtotightenall

the screws.

2.3.2 Mounting PS3500-PM-1.24.15 power modules

ThehousingofPS3500-PM-1.24.15meetsthedegreeofprotectionclassIP20.Itisintendedfor

mounting on the PS3500 backplane PS3500-TB-*.

Toinstallanewmoduleonthebackplaneproceedasfollows:

1. Carefullycenterandmatetheplugandconnectoronthebackofthepowermoduletothe

backplane;thenpressrmlyonthemodule.

2. With a screwdriver, screw in the top and bottom mounting screw on the power module to

secure the module in the slot.

3. Themodulesarehotswappable;theycanbereplacedwithoutshuttingdownthesystem.See

Section 5.2, Hot swapping.

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PS3500 N+1 Redundant Power Supply

3 Specications

PS3500 has a wall-mount, multi-slot backplane accepting hot swappable plug-in power

converter modules that provides an isolated output at 24 V DC nominal.

Each power module has an individually isolated input port accepting either AC or DC that

providesinrushcurrentlimitingandpowerfactorcontrol.Theoutputportiscompletely

isolatedfromtheinputandprovidesupto15Apermoduleatanominal24VDC(adjustable

22.5to30Vfromchassismountedtrimmer)withaloadsharingcongurationforparalleled

output operation. Input and output lines can be wired independently or in parallel providing

N+1 redundant structures.

SystemcongurationisobtainedbywiringandcongurationDIPswitchesonthevarious

backplane slots leaving power modules interchangeable and easily swappable under load.

AllrelevantfailuresinthemodulesaredetectedandsignaledbyindividualLEDsandalarm

relaysprovidingaexiblecombinationofredundancy,faulttolerance,andautomaticfault

detection ideally suited to critical applications.

FullcompliancetotheEUdirectivesforEMCandlow-voltageequipmentensureminimum

emissionsandhighimmunityinharshenvironments.Highconversioneciencynormallypermits

naturalconvectioncoolingoperationeliminatingcoolingfansformostapplicationrequirements.

3.1 Powersupplymodulespecications

Mechanicalspecications

Dimensions (134mmx62mmx268mm)5.3”x2.5”x10.6”

Input

Voltage 90…250VAC±10%;90...300VDC,overvoltagecategoryII

Input current Max.6.5A

Eciency Up to 91%

Inrush current <50Apeakfor50µs

Powerfactor > 0.97, 50...100% load

Output

Voltage 24VDC+/-1%,adjustablebetween22.5...30V

Current 15A(SeeOutputDeratingCurves)

Fault signal Relay50V/0.6Aor30V/1ADC

Short-circuit current ≤20A

Temperaturecoecient ±0.01%per°Cmax

Input regulation <100mV(90...250VAC;90...300VDC)

Load regulation <100mV(0...15Aoutputload)

Turn-on/turn-ovoltagetransient 200mstonalvalue(noover/undershoot)

Ripple 35 mV rms(<100mVpp)

Responsetime Min.hold-uptime:≥25msatnominalinputvoltage&outputload

Indicators/settings

Display elements LED Power, green: power on

LEDFault,red:faultindication

LED Alarm, red: module shut-down

Table 2. Power supply module specications

Subject to modifications www.pepperl-fuchs.com

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PS3500 N+1 Redundant Power Supply

3.2 Systemspecications

Electricalisolation

Input/output 4.25 kV DC

3.0 kV AC

Input/ground 2.12 kV DC

1.5 kV AC

Output/ground 2.12 kV DC

1.5 kV AC

Ambient conditions

Ambient temperature -25…+45 °C derated 45...70 °C at 0.45A per °C above 45 °C

Altitude Installation is 2000 m or less

Polution degree Polution degree 2 or 1

Storage temperature -40…+85 °C

Shock resistance 15 g, 11 ms

Vibration resistance 1 g, 58...150 Hz

Relativehumidity < 95 % non condensing

Mechanicalspecication

Protection degree IP20

Weight Approximately1.8kg(4.125lbs)

Directiveconformity

Electromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006

EN 61000 sections 4-2, 4-4, and 4-6

EN 55011

Conformity

Electrical isolation IEC 61131-2

Electromagnetic compatibility NE 21

Protection degree EN 60529

Shock resistance EN 60068-2-27

Vibration resistance EN 60068-2-6

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PS3500 N+1 Redundant Power Supply

Dataforapplicationinconjunction

withhazardousareas

TypeExaminationCerticate DEMKO12ATEX1103387XRev.2

Group,category,typeofprotection II3GExecnCIICT4Gc(PS3500-PM)

II3GExecIICT4Gc(PS3500-TB)

Directiveconformity

Directive 2014/34 EU EN IEC 60079-0:2018, EN 60079-7:2015+A1:2018, EN

60079-11:2012, EN 60079-15:2019, EN 61010-1

UKSI2016No.1107(EX) EN IEC 60079-0:2018, EN 60079-7:2015+A1:2018, EN

60079-11:2012, EN 60079-15:2019

Internationalapprovals

IECExapprovals ExecnCIICT4Gc(PS3500-PM)

ExecIICT4Gc(PS3500-TB)

IECExUL13.0082X

UL Listed UL121201(9thEd.,2019)

UL 508

CSA C22.2 No. 213-17,

CSA C22.2 No. 107.1-16

Approvedfor Class I, Zone 2, Group IIC T4

Class I, Division 2, Groups A, B, C, D, T4

CCC approval ExicnAnCIICT4Gc(PS3500-PM-1.24.15)

ExnAnCIICT4Gc(PS3500-DM)

CerticateNo.:2021322303003616

ExnAnCIICT4Gc(PS3500-TB)

CerticateNo.:2021322308004230

Generalinformation

Supplementaryinformation StatementofConformity,DeclarationofConformityand

instructions have to be observed where applicable.

Forinformation,seewww.pepperl-fuchs.com.

Table 3. System specications

3.2 Systemspecications(continued)

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PS3500 N+1 Redundant Power Supply

3.3 Dimensions

 mm(in)

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PS3500 N+1 Redundant Power Supply

4 TemperatureConsiderations

Temperatureacceleratesthefailuremechanismofeveryelectroniccomponent(Arrhenius

criteria).Iftheoperatingtemperatureisincreasedby10°Cfromitsnormaloperatingrange,

-25…+45°C(-11...+113°F),itsexpectedlifeisalmostcutinhalf.

Temperature rise depends on dissipated power density. For the same enclosure volume

morepowerdissipatedproduceshighertemperaturerise.Forexample,acabinet600x

600x2000mmdissipating300Wwithnaturalconvectioncoolingproducesaninternal

temperatureriseof10°C.Thisshouldberegardedasanidealcase.

Identifytheworstload/temperatureenvironmentthatthepowersupplywillencounterand

determine the recommended cooling method.

• Use convection coolingwhenthesupplyloadistypicallyinthelowerpartoftheshaded

regioninFigure3andfreeaircirculationisensured.

• Use forced coolingwhenthesupplyloadisintheupperpartoftheshadedregionin

Figure3forextendedperiodsoftimeorwhenaveryhighsystemreliabilityisrequired.

Figure 3. Recommended load current per module vs. operating temperature

4.1 Convectioncooling

Hotcomponentsexchangeheatwiththesurroundingairproducingaverticallyrisinghot

airow.Thisdeterminesnewcoolairintaketocoolthecomponentinanaturalconvection

coolingmode,whichiscontrolledbytheintakeairtemperatureandow.

Forgoodconvectioncooling,installtheequipmentwithanunobstructedvertical

owofrelativelycool(ambienttemperature)airenteringfromthebottomandow

outatahighertemperaturefromthetop.Toavoidexcessivetemperaturebuildup,

donotstackpowerdissipatingdevicesverticallyincloseproximity.

PS3500 Temperature Derating

Ambient Temperature (°C)

Load Current (A)

70°

0° 45°

100 %

25 %

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PS3500 N+1 Redundant Power Supply

4.2 Forcedcooling

Forcedcoolingisobtainedbyusingsuitablefans.Fansgenerateastrongairowthat

removesheatfromthepowergeneratingequipment.Usetwo(PS3500-TB-3)orfour

(PS3500-TB-6)120mm,100m3/h,brushless,long-lifefansoperatedfromtheoutputbusat

24VDC(e.g.,PAPSTtype)installedimmediatelybelowthebackplanesandblowingairup

againstthebottomofthepowermodules.Makesuretoallowrelativelyfreeairowbelowthe

fansandabovethesupplyrack.

4.3 Clearances

Forclearances,wewouldrecommend1.25”fromthesidesofthepowersupplies,and5”

fromthetopandbottomwhenorientedinthestandardhorizontalposition,forconvection

cooling.Ifusingforcedairconvectioncooling,thismaybereducedsome.Thisassumesthat

belowthebackplaneisnotanothersourceofheat.

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PS3500 N+1 Redundant Power Supply

5 TechnicalConcept

Thepowersupplysystemconsistsoftwodierentbackplanes(3and6slots)andthepower

supplymodule.Thekeyfeaturesofthesystemare:

• Nominal output 24 V/15 A per module

• Nominalinputof90to250VAC/90to300VDCpermodule

• N+1 redundancy

• Automatic load-sharing

• Higheciency(upto91%)

• Fanless

• Moduleoutputvoltageisadjustableatthebackplanefrom22.5Vto30V

• Basicmodulefailurealarmingviarelaycontact(normallyopen/closecongurable)

• Redundancyonsupplyline

5.1 N+1redundancy

N+1redundancyisbasedonthefact,thatthemaximumdrawncurrentislowerthanthe

maximumcurrentprovidedbytheoverallnumberofmodulesminusone.Basedonthe

backplane size, N can be any number between 1 and 5.

5.2 Hotswapping

Hotswappingallowsreplacementofamoduleunderpowerwithoutanyvisiblefunctional

impact on the output side. Hot swapping is allowed only in an environment where no

hazardousmaterialsarepresent.ThehotswappingfeatureisnotpermittedinaClassI/Div2

area or Zone 2 area unless under a hot permit.

5.3 Automaticload-sharing

Thepowersupplymodulesimplementarealload-sharingfunction;allmodulessupplythe

sameamountofcurrent.Thetoleranceforthecurrentdierencebetweenthemodules

shouldbewithinarangeof±1.5A.

5.4 Variableoutputvoltage

Thefactorydefaultoutputvoltageis24V.Theoutputvoltageisadjustableinarangefrom

22.5Vto30Vforeachmodulebyusingapotentiometer.Insertedmodulescanbeeasily

adjustedwithascrewdriverduringsetup.Potentiometersareaccessibleontheadjacent

backplaneslotmakingthevoltagesettingtamperproofduringoperation.

5.5 Alarmoutput

Eachpowermodulehasitsownalarmmonitoringcircuitthatcontrolsarelayforacommon

failureoutputsignal.Itcanbecongurednormallyopenornormallyclosedusingtheterminal

blocks on the backplane.

Subject to modifications www.pepperl-fuchs.com

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PS3500 N+1 Redundant Power Supply

5.6 Internaldiagnostics,recovery,andLEDs

Overvoltage(OV),overcurrent(OC),andoverheat(OHT)conditionsleadtoanoutput

shutdownoftheunit.Theyalsocreateanalarmsignalattheinternalrelay.Undervoltage

(UV)createsanalarm,butdoesnotshutdowntheunit.

Duringshutdownmode,theunitcontinuouslychecksfortheactualfailureconditiontogo

away.Ifthatisthecase,theunitwouldgobacktonormaloperation.However,thisbehavior

must not impact the remaining running units in an N+1 redundant system.

There are three LEDs:

• Powergood(green)

• Fault(red)

• Alarm(red)

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PS3500 N+1 Redundant Power Supply

6 Wiring

ThePS3500systemhasseparateinput/outputterminalblocksforsimpleconguration.

Connectgroundterminalstothemainsground,otherwiselethalvoltages

mayoccur.

Permanentpowermoduledamagewillresultincaseofinputvoltage

overload.

6.1 Specicconditionsofuse

1. Tobeinstalledinanend-useATEXapprovedsystem,providingre,impact,grounding,

andaccessibilityprotection.ThepowersupplymustbeinstalledinanATEXCertied,

IP54 enclosure. Alternatively, the power can be installed in an IP4X enclosure, having

adequateprotectionagainsttheentryofsolidforeignobjectsorwatercapableof

impairingsafety.

2. GND connection on backplane at Mains supply connections is a protective ground

connection.Thewireguageshouldbeatleastthesameaswhatisusedforthemains

powerfeed.

3. Foranyhazardouslocations(ClassI/Div2,Zone2)thePS3500systemmustbeinstalled

in a locked enclosure.

4. Powersupplymustbesecuredtosystemusingscrewsrequiringtoolsforremoval.

5. Forindooruseonly;nottobesubjectedtoUVexposurefromluminaires.

6. Ambientratingsforoperationare-25…+45°C,derated45...70°Cat0.45Aper°Cabove

45 °C. See Figure 3, temperature curve.

7. ThePS3500systemisdesignedforuseinpollutiondegree2environments.

8. For use with Class 1 conductors or equivalent.

9. For use with CU conductors or equivalent.

10. Use 14 AWG conductors or equivalent.

11. Use conductors rated 75 °C minimum or equivalent.

12.Alarmrelaycontactsareratedfor50VDCorlessandareintendedtobepoweredbyDC

sourceswithproperisolationfromMAINS.

13.Thedevicemustbeinstalledandoperatedonlyinanenvironmentofovervoltage

categoryII(orbetter)accordingtoEN60664-1.

14. The device must be installed and operated only in a controlled environment that ensures

apollutiondegree2(orbetter)accordingtoEN60664-1.

15. The device must be installed and operated only in surrounding enclosures that

 ComplywiththerequirementsforsurroundingenclosuresaccordingtoEN60079-0

 AreratedwiththedegreeofprotectionIP54accordingtoEN60529.

6.2 Inputsupplyline

Powerlinevoltageis90...250VAC±10%(90...300VDC).Checksupplylinevoltageto

meetpowermodulesupplyrequirements.Planfordisconnectingcapabilityandovercurrent

protectionbyadequatelysizedfusesorcircuitbreakersonthelines.

Circuitbreakersorfusingsholdbe20Aorless.connectionsto6poitionbackplanewill

require2breakersorfusedsourcesfeedingthebackplane.Groupof3slotsneeds20A

breaker or less. A single 40A breaker is not allowed.

Groundconnectionshouldbemaderst.

Warning

Subject to modifications www.pepperl-fuchs.com

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Germany: +49 621 776 2222

PS3500 N+1 Redundant Power Supply

InputTerminals

strip length = 8mm

wireguagemax=4mmsq(10AWG)

tightening torque 0.6–0.8 N-m

OutputTerminals

strip length = 12mm

wireguagemax=10mmsq(6AWG)

tightening torque 1.2–1.5 N-m

OtherTerminals

strip length = 7mm

wireguagemax=2.5mmsq(12AWG)

tightening torque 0.5–0.6 N-m

6.3 Inputcongurations

6.3.1 Single line input

Usewithuninterruptiblepowersystems(UPS)supplyorwheninputlineintegrityisnot

critical, wire per sketch in Figure 4. For DC input, polarity does not matter.

Note!

Each spur to the individual group

of 3 power supplies needs its own 20 A breaker.

Figure 4. Single line input connection

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PS3500 N+1 Redundant Power Supply

6.3.2 Dual Line Input

WirepersketchinFigure5.Forredundantinputlineconguration,loadshouldnotexceed

45 Amps per every 6-position backplane used.

Figure 5. Dual line input connection

6.3.3 Independent line connection

WirepersketchinFigure6.Forindependentinputlineconguration,loadshouldremain

separated.

Figure 6. Independent multi input line connections

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PS3500 N+1 Redundant Power Supply

6.4 Outputconguration

Each power module slot has a 6-position DIP switch that enables the various alarm

congurationsaswellastheloadsharingabilityofeachPS3500powermodule.SeeTable4

forproperconguration.Thesecongurationsareonaperslotbasis.

Sx.1 Sx.2 Sx.3 Sx.4 Sx.5 Sx.6

Parallel alarm Off On Off Off x x

Serial alarm+On Off On On/ Off* x x

Load share OFF x x x x Off Off

Load share ON x x x x On On

*Any slot not having a module should have DIP switch #4 turned on

+Slot#1,S1.1andS1.2areinparallelthereforeeitheronecanbeon.

Table 4. Alarm/load sharing conguration

6.4.1 Independent outputs

Useforseparateoutputapplications;wireperFigure7.

Out 1

- +

Out 2

- +

Out 3

- +

Out 4

- +

Out 5

- +

Out 6

Figure 7. Independent output lines

6.4.2 Common outputs

Useforbusconnectedoutputorredundantcongurations;wireperFigure8.RefertoTable

4forloadshareDIPswitchconguration.Formultibackplaneparalleloperation,extendload

sharingconnectionsatterminals5and6tothenextbackplane.

NOTE:Aseparatebusisrequiredforloads>45A.

Load Sharing

Figure 8. Bus connected output or redundant congurations

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PS3500 N+1 Redundant Power Supply

6.5 Alarmconguration

6.5.1 Parallel alarm

Connectinparallel,asperFigure9,thenormallyclosed(N.C.)alarmcontactsonallpower

modules,andrefertoTable4forparallelalarmDIPswitchconguration.Whenanyspecic

relayonamoduledeenergizesunderalarmcondition,includingpowero,thecircuitwill

closeandactuateanalarm(atterminals1-2ofthealarmterminalblock).Pullingapower

moduleoutofthebackplanewillnotactuateanalarm.

Figure 9. Parallel alarm

6.5.2 Serial alarm

Connectinseries,asperFigure10,thenormallyopen(N.O.)alarmcontactsonallpower

modulesandrefertoTable4forserialalarmDIPswitchconguration.Whenanyspecic

relay on a module de-energizes under alarm condition, the circuit will open and cause an

alarm.Removingamodulewillsetothealarm.Anyslotwithoutamodulewillneedtohave

DIPswitchSx.4turnedon.

Figure 10. Serial alarm connection

1 2 3

NOTE: Alarm relay # 3 shown in alarm position

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PS3500 N+1 Redundant Power Supply

7 OutputCongurations

Alarmconguration Module Nomodule

(emptyslot)

Parallel with

Load Share

OFF OFF = Open

Parallel without

Load Share

Serial with

Load Share

Serial without

Load Share

Note: DiagnosticModuleDIPSwitches

When the Diagnostic Module is not in use, all Diagnostic Module port DIP

switches must be set to the "OFF" position.

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PS3500 N+1 Redundant Power Supply

8 Operations

Warning!

Donotplugandpowermodulesonthebackplanebeforecheckingallthesystems

as recommended.

8.1 Supplylinechecks

1. GroundingconductortobeconnectedandrmlysecuredtotheGNDterminals.

2. Inputlinestobeprotectedbyappropriatelysizedfusesorsectioningcircuitbreakers

(turningthemo).

3. Lineconductorstobeofadequatesizeandrmlysecuredwithnoexposedconductors

risking contacts with the backplane or short circuits.

4. Supplylinevoltagetomeetpowermodulerating.(Checksidelabel.)

8.2 Outputlinechecks

1. Outputpolaritytobecorrect.(Severedamagetothepoweredequipmentmightresultin

caseofreversepolaritypowering.)

2. Outputvoltagevalue24V.Checkonsidelabelofpowermodules.

3. Outputconductorstobeofadequatesizeandrmlysecuredwithnoexposedrisking

contacts with the backplane or short circuits.

4. LoadsharingDIPswitchescongurationareset.(SeeSection6.4.)

8.3 Alarmlineschecks

1. Alarmcircuittobecorrectlywiredandconductorsrmlysecuredwithnoexposed

conductors risking contacts with the backplane or short circuits.

2. AlarmDIPswitchescongurationset.(SeeSection6.4.)

8.4 Commissioning

1. Pulloutallmodulesfromthebackplane

2. Disconnect load on the 24 V output bus and switch the input mains ON.

3. PlugoneofthePS3500modulesinslot1ofthebackplaneandvalidatetheoutputtobe

withinthelimits(fora24Vnominaloutput,23.6Vto24.24V).

Factorydefaultforthemodulesis24V+/-1%.Ifadierentoutputvoltageisrequired(within

the22.5Vto28Vrange),adjustthepotentiometeronthebackplanetoobtainthedesired

output.

4. Repeatstep3,usingthesamemodulepluggedinthebackplaneslot2,3,etc.,and

check the output voltage to be within the limits

5. Turnpowero,reconnecttheloadpluginandtightenallmodulesonthebackplanewith

thexingscrews.

6. Turn power ON. Only the green LED should appear (no alarms). If any alarm is

displayed, check mains voltage, module conguration and adjustment. If problem

remains refer to the troubleshooting section.

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