Modular Multifunction Electronic LoadPLZ-U SERIES

Two load models (75 W/150 W) and two frame models (3 ch/5 ch)High-speed response supporting a maximum slew rate of 2.4 A/μs (PLZ150U)

Minimum setting resolution of 10 μA (PLZ70UA) or 20 μA (PLZ150U)0-V input operating voltage model (PLZ70UA)

Up to five load modules (same model) can be operated in parallel.Frame control allows your system to be expanded to a multi-channel system configuration supporting up to 25 channels.Timer functions combined with time/voltage measurement functions enable battery discharge characteristic evaluations.

The system features sequence and switching functions and is provided with GPIB and RS-232C ports as standard.

* Photo is for reference only. Actualconfigurationwillvarydependingonapplication.

Electronic Load

0Vinput operatingvoltage model

PLZ70UA

2

ForTestingSwitchingPowerSupplies,Batteries,DC/DCConvertersandFuelCells!

Multi-Channel Load Systems Can Be Built Easily! Operating Multiple Units in Parallel Offers Large Capacity!

■ PLZ-USeriesComponentProductneme Modelname Operatingvoltage Current Power RemarksLoadUnit PLZ70UA 0V to 150V 15A 75WLoadUnit PLZ150U 1.5V to 150V 30A 150W

Frame(3ch) PLZ-30F― ― ―

accommodatingupto3ealoadmodulesFrame(5ch) PLZ-50F accommodatingupto5ealoadmodules

E L E C T R O N I C L O A D

Multifunctional Electronic Load PLZ-U Series

●Compact, lightweight body●High-speed response●High precision and high resolution●Variable slew rate●0-V input●Multi-channel system

ThePLZ-USeriesprovidesasetofcompact,high-performancemulti-channelelectronicloadsystemscapableofoperating in threemodes - constant current, constant resistance, and constant voltage.Adopting themodular(plug-in)design,theSeriesconsistsoffourmodels-twoframemodelsandtwoloadunitmodels.ThePLZ-30Fframecanconfiguretheloadunitsuptothreechannels,andthePLZ-50Fframecanconfigureuptofivechannels.Twoloadunitmodelsareavailable,thePLZ-70UA(75-wattloadthatoperatesevenat0V)andPLZ-150U(150-wattloadthatoperatesfrom1.5Vup).Loadunitscanbeoperatedinparalleltoincreasethecurrentcapacityorpowercapacity.Bycombiningdifferentmodelsofloadunitsandframe,thepowercapacitycanbechangedfrom75Wto750W(whenfivePLZ150UunitsaremountedinaPLZ-50Fframe).SupportingtheGPIBandRS-232Cinterfacesasstandard,theelectronicloadcanbebuiltintovarioustypesoftestsystems,makingitusefulintestingfuelcells,secondary cells,DC/DCconverters, switchingpower supplies,multiple-output power supplies, andmore.Bothinterfaces support IEEE488.2aswell as theStandardCommands forProgrammable Instruments (SCPI)commands,developedfortestingandmeasuringinstruments.

*PleaserefertoP15forthecombinationlist.

3

Electronic Load

PLZ-U Series

■ Compact, lightweight bodyTheelectronicloadsystemisaswideasa19-inchrackwithaheightof3U.Weighingabout 11 kgwhen configuredfor three channels or about 17 kgwhenconfigured for five channels, the systemiscompact,lightweightandspace-saving.

■ High-speed responseIn constant currentmode, theelectronicload is capableof offeringhigh-speedresponseataslewrateof2.4A/μsattherisingand fallingedgesof the current(equivalenttoabout10μswhenconvert-edtotheriseandfalltimes;inthecaseofPLZ150U).Thisallowstransientresponsetests for direct current power suppliesandsimulationsusingdummyloadstobeconductedunder highly realistic loadconditions.

■ High precision and high resolutionThebuilt-in three-range configurationprovidesbothwidedynamic rangeandhighprecision.The voltmeter, ammeterandwattmeter functions that displayvaluesusinguptofivedigitseachandaminimumsettingresolutionofeither10μA (PLZ70UA)or 20μA (PLZ150U)areimplemented.

■ Variable slew rateInconstantcurrentorconstantresistancemode,theslewratecanbechangedcon-tinuously.This helps suppress transientvoltagedropsdue towiring inductance,aswellastransientsintheconstantvol-tagepowersupplyandothers,atthetimeofswitchingoperation.

■ 0-V inputThePLZ70UAmodel operates evenwhentheinputoperatingvoltageis0V.This feature is indispensable for testingsingle-cellfuelcells.Thecontinuingtrendtoward lower power consumptionandsemiconductorprocessminiaturization isdrivingsemiconductordevicestooperatewithincreasinglylowervoltages.ThismakesPLZ70UAsuitable for usewhenevaluatingsuchpowersupplies.

■ Sequence function to enable load simulationsInconstantcurrentorconstantresistancemode,sequenceprograms,eachconsist-ingof up to 255 steps, canbe createdwithaminimumstepexecutiontimeof1ms.A separateprogramcanbe runindepen-dently at the same timeonachannel-by-channelbasis.

■ External control functionsYoucanactivate the inputofanexternalreference voltageand turnonor off theloadforeachchannelindividually.Throughtheframecontrolterminals,youcanperformchannel-synchronizedABCpresetmemory call, setupmemory call,andloadon/offoperations.

■ Frame controlYoucanconnecttwoormoreframesanduseoneofthemtocontroltheothers(upto f ive frames canbe connectedat atime).This enables you to turnonor offtheloadandcallpresetvalues.

■ Multi-channel systemPLZ-50Fmaybe configuredwith up tof ive channels, andPLZ-30Fmay beconfiguredwithuptothreechannels.Isolated fromeachother, the channelscanoperateboth independently and insynchronization.Differentmodelsofloadunits (PLZ150UandPLZ70UA) canbehousedinasingleframe.

■ Parallel operation for increased capacityUptofiveloadmodulesmaybeoperatedin parallel, provided that adjacent loadmodules are of the samemodel. Forexample,when f ive loadmodulesareparallel connected in aPLZ-50F frame,the systemcan functionasa375-wattload if theparalleled loadmodulesarePLZ70UAsor asa750-watt load if theparalleledloadmodulesarePLZ150Us.

■ Others•Asetupmemoryfunctionisprovidedtosavethepanelsettings.•TheABCpresetmemoryfunctionletsyoupresetthethreemostfrequentlyusedvalues.•ThesystemcomesstandardwithGPIBandRS232Ccommunicationports.•Theanalog-likerotaryknobsandintuitivedesignmakethesystemveryeasytooperate.• Thesystemhasloadinputterminalsandremotesensingterminalsonitsfrontandrearpanels.•Theuseofheat-sensitive,variable-speedfansandthepursuitofamoreefficientcoolingstructurehaveresultedinhighreliabilityandlownoise.•Sixprotectionfunctionsareprovided,includingovercurrentprotection(OCP),undervoltageprotection(UVP)andreverseconnectionprotection(RVP).

FEATURES

4

16 SET key

This key is used to selectwhether the current,resistanceorvoltagevaluetobeset.In theCC+CVorCR+CVmode, each time youpresstheSETkey,thecurrentorvoltagevalueisselectedalternately.

17 Range indicators

These indicators indicate the rangesof theCC,CRandCVoperationmodes.

18 Channel indicator

This indicator shows the current ly selectedchannelnumberthatisbeingset.

19 Set value display area

This areadisplays the set value, setupmemorynumber,configurationvalue,etc.

20 Unit indicators

TheLEDindicatestheunitofthesetvalue.

21 SW, SEQ and STORE lamps

Theselampsilluminatewhentheswitchingmodeison,when thesequencemode isonandwhenthe setupmemory is wai t ing to store data,respectively.

22 A/B/C key

ThethreepresetvaluesA,BandCcanbesavedandcalledonachannel-by-channelbasis.

9 Unit indicators

TheLED indicates theunit of themeasurementvalue.

10 SW/SEQ/EXT/ALM lamps

11 DISP key

Pressingthiskeychangesthepairofmeasurementvaluesshown in themeasurement valuedisplayarea.Youcanswitchamongthefollowingpairsofmeasurement values - voltage/current, voltage/power, current/power,andelapsed time/alarmorload-offvoltage.

12 INDEP key

Thiskeyisusedtomaketheloadmoduleoperateindependently in connectionwith the loadon/offandABCpresetmemoryfunctions.

13 LOAD key

Pressing thiskey turnsonoroff thecurrentflowonallthechannelssimultaneously.Thisloadon/of f func t ion does not take ef fec t fo r thosechannelsoperatinginindependentmode.

14 CC, CR and CV/+CV keys

Thesekeysareusedtoselecttheoperationmode.TheselectableoperationmodesareCC,CRandCV/+CV.

15 RANGE/V RANGE keys

Thesekeysareusedtoselectranges.RANGE:Used tochange thecurrent/resistancerange ineachoperationmode. Each timeyoupresstheRANGEkey,thecurrentrangechangestothenextoneinthefollowingorder-L,MandH.VRANGE: In theCV,CC+CVorCR+CVmode,each timeyoupress this keywhileholdingdowntheSHIFTkey,therangetogglesbetweenLandH.

1 Front-panel load input terminals

Theseterminalsareused toconnect thissystemto thedevice to be tested. Identical sets of loadinputterminalsareprovidedonthefrontandrearpanels, andare connected in parallel inside thesystem.

2 Front-panel remote sensing terminals

Sensing linesare connected to these terminals.Identical sets of remote sensing terminals areprovidedon the front and rear panels, andareconnectedinparallelinsidethesystem.

3 LOAD key

4 Range indicators

These indicators indicate the rangesof theCC,CRandCVoperationmodes.

5 Operation mode indicators

These indicators represent theCC,CRandCVoperationmodes.

6 ABC preset memory lamps

WhendataiscalledfromthepresetmemoryA,BorC,thecorrespondingLEDilluminates.

7 Channel indicator

This indicator shows the channel number of theloadmodule.

8 Measurement value display area

Thisareadisplaysapairofmeasurementvaluesoftheloadmoduleinconjunctionwiththemoduleindicators.Pairsofmeasurementvaluesthatcanbedisplayedare voltage/current, voltage/power,current/power,andelapsedtime/alarmorload-offvoltage.

1

3

2

4

5 6 7 8 9 10 1815 1716 19 20

14

22

21

1211 13

Load module section

* Photo of PLZ-30F

Front panel

Frame section

FRONT PANEL EXPLANATION

5

Electronic Load

PLZ-U Series

4 AC INPUT

5 GPIB

6 RS232C

7 FRAME CONT

This connector is used to perform loadon/off,memory cal l and other operat ions f rom theoutside.

1 Rear-panel load input terminals

Theseterminalsareused toconnect thissystemwiththedevicetobetested.Theyareconnectedto the load input terminals on the front panel inparallelinsidethesystem.

2 Rear-panel remote sensing terminals

Sensing linesare connected to these terminalswhencompensatingforvoltagedropsduetoloadwireresistance.Identicalsetsofremotesensingterminals areprovidedon the front and rearpanels, andare connected in parallel inside thesystem.

3 Air vents

Coolingfansexpelairthroughtheseventstokeepthetemperatureinsidethesystemconstant.Therotation speedof the cooling fansare controlledaccordingtotheinternaltemperature.

8 CH CONT

Thisconnectorisusedtoperformloadon/offandex ternal voltage reference control f rom theoutside.Itisalsoequippedwiththeterminalsforcurrentmonitor output andpower supply outputfor control.

4

5

3

7 8

1

2

6

Rear panel

* Photo of PLZ-30F

REAR PANEL EXPLANATION

6

■ Five operation modesThe system is capable of operating in fivemodes - constantcurrent,constantresistance,constantvoltage,constantcurrent+constantvoltageandconstantresistance+constantvoltage.

■ Variable slew rateThe slew ratedetermines the slopeof change in the currentwhenthesetcurrentneedstochangesharplyasinatransientresponsetest.Thissystemletsyousetthecurrentchangerateperunittimeasappropriatefortheselectedcurrentrange.

Slew ratePLZ150U PLZ70UA

CCmode H 0.10to2.40A/μs 0.05to1.20A/μsM 0.10to0.24A/μs 0.05to0.12A/μsL 24mA/μs* 12mA/μs*

CRmode H 0.10to0.24A/μs 0.05to0.12A/μsM 24mA/μs* 12mA/μs*L 2.4mA/μs* 1.2mA/μs*

Resolution 0.01A/μs*Fixedvalue

■ High precision and high resolutionThebuilt- in three-range configurationprovidesbothwidedynamicrangeandhighprecision.Thevoltmeter,ammeterandwattmeter functions that display valuesusingup to fivedigitseach and aminimum set t ing resolut ion of ei ther 10 μA(PLZ70UA)or20μA(PLZ150U)areimplemented.

Measurement display resolutionResolution

Voltmeter 15.75 to 150 V 0.01 V0 to 15.75 V 0.001 V

Ammeter H 0.001 AM 0.0001 AL 0.01mA

Wattmeter Less than 100 W 0.01 W100Wormore 0.1 W

■ 0-V inputThePLZ70UAmodel operatesevenwhen the input operatingvoltageis0V.Thisfeatureis indispensablefortestingsingle-cell fuel cells. The continuing trend toward lower powerconsumptionand semiconductor processminiaturization isdriving semiconductor devices to operatewith increasinglylower voltages. ThismakesPLZ70UAsuitable for usewhenevaluatingsuchpowersupplies.

■ Diverse load on/off operationsBothloadunitsandframeshaveLOADkeysonthem.Theloadon/offoperationslistedbelowareavailable.Youcanchooseanyoftheseoperationsassuitableforyouroperatingenvironment.

Load on/off operationsSelectedchannelonly OperationusingtheLOADkeyoftheloadunitAllchannelssimultaneously OperationusingtheLOADkeyoftheframeLoadondelay Turnsontheloadwhenthesettimeelapsesafter

theLOADkeyispressed.Poweronload Turnsontheloadautomaticallywhenthesystemis

poweredon.Autoloadofftimer Turnsofftheloadwhenthesettimeelapsesafter

theload-onoperation.Externalcontrol Controlstheloadon/offoperationsusingexternal

signals.Elapsedtimedisplay Displaysthetimethatelapsesfromthemomentthe

loadisturnedonuntilitisturnedoff.Loadoffvoltagedisplay Storesthevalueofvoltagerecordedwhentheload

isturnedoff.

■ Channel-synchronized operationsYoucanhaveall thechannelsoperated insynchronization forthe loadon/of f,ABCpresetmemory, setupmemoryandsequenceoperations,respectively.

Channel-synchronized operationsLoadon/off Turnsonorofftheloadforallthechannelssimultaneously.ABCpresetmemory Callsmemorydataforallthechannelssimultaneously.Setupmemory Savesorcallsmemorydataforallthechannels

simultaneously.Sequence Executesorstopssequenceprogramsforallthechannels

simultaneously.

■ Frame controlByconnecting twoormore frames,youcanperformchannel-synchronized loadon/off,ABCpresetmemory call and setupmemory call operations for all the channels simultaneouslywhilecontrollinguptofourframesfromasingleframe.

CC(Constant Current)

CR(Constant Resistance)

CV(Constant Voltage)

CC + CV(Constant Current +

Constant Voltage)

CR + CV(Constant Resistance +

Constant Voltage)

Input current I

Inpu

t vol

tage

V

Input current I

Inpu

t vol

tage

VI

0 Input current I

Inpu

t vol

tage

V

0 Input current I

Inpu

t vol

tage

V

0 Input current I

Inpu

t vol

tage

V

0

V

I

R

V

0

R

V

Flat cable

1st frame

2nd frame

3rd frame

2

1

1

2

Performance and Functions

High Basic Performance Functions Available Only inMulti-Channel Systems

7

Electronic Load

PLZ-U Series

■ Parallel operationAdjacentloadmodulesofthesamemodelinstalledinthesameframecanbeoperated in parallel*. Parallel operated loadmodulesare regardedasa single channel, and their totalcurrent and resistance (conductance) valuesareusedasdisplayedandsetvalues. Paralleloperated loadmodulesandstandaloneloadmodulescancoexistinthesameframe.*PLZ-50Fcanaccommodateuptofiveloadmodules.

WhenPLZ-50Fhousesonesetof threeparalleloperated loadmodulesandanothersetoftwoparalleloperatedloadmodules

WhenPLZ-50Fhousesonesetof threeparalleloperated loadmodulesandtwostandaloneloadmodules

Number of parallel operated load modules and capacitiesNumberofparalleloperatedloadmodules PLZ70UA PLZ150U

2 30 A/150 W 60 A/300 W3 45A/225W 90A/450W4 60 A/300 W 120 A/600 W5 75 A/375 W 150 A/750 W

■ Sequence functionThesequencefunctionautomaticallyexecutesastoredprogramstepby step in constant current or constant resistancemode.You can set a valueandanexecution time for each stepindividually,whichenables you to performsimulationswithvariouswaveforms. A separateprogramcanbeprepared foreachchannel,andthebackupfunctionretainstheseprogramsevenifthesystemispoweredoff.

Sequence setting parametersMode CC or CRStepexecutiontime 1msto9999s(0=Endofthestep)Maximumnumberofsteps 255Numberofrepetitions 0to9999(9999=Repeatedinfinitely)

■ Elapsed time display and auto load off timerCombiningfourfunctions-elapsedtimedisplay,undervoltageprotection(UVP),loadoffvoltagedisplayandautoloadofftimer-makesitpossibletoperformtwotypesofmeasurementsthatareusefulinbatterydischargetests-measurementofthetimeelapsed from the start of dischargeuntil the final voltage isdetectedandmeasurement of the closed circuit voltageafterthespecifiedtimeelapsesfromthestartofdischarge.

■ Switching functionSwitchingoperationscanbeperformedinconstantcurrentandconstant resistancemodes. Theswitchingsettingparametersare the switching level, switching frequency, duty factor andslewrate.Theseparameterscanbechangedwhilethismodeisinoperation.

Switching setting parametersDuty factor 2%to98%,instepsof0.1%Frequencyrange 1Hzto20kHzFrequencysettingresolution

1Hztonothigherthan1kHz 1Hz1kHztonothigherthan10kHz 10Hz10to20kHz 100Hz

M:MasterS: Slave

M:MasterS: SlaveStandalone: Standaloneloadmodule

Standalone Standalone M S SStandalone Standalone M S S

M S S M SM S S M S

Program

Step 1Step 2Step 3

Step 256

···

Repeat

10A

5A

Execute (RUN)

Set

val

ue

STEP

1 2 3 4 5 6 7 8

(Step execution time)

1A

Time

Voltage

0

V1V2

V2: Voltage measured after the specified time elapsesV1: UVP detection voltage

T2 T1

T2: Auto load off timerT1: Elapsed time display

Performance and Functions

Support for Advanced Tests

8

■ ConfigurationsettingThis function configures the settings related to the systemoperation,communicationenvironment,etc.Thesesettingsarestored in the systemmemoryand calledwhen thepower isturnedon.

•Numberofparalleloperatedloadmodules

•Operationmodeinwhichtheexternalreferencevoltageinputisused

•Overcurrentprotection(OCP)loadofffunction

•Overpowerprotection(OPP)loadofffunction

•Loadondelaytime

•Loadon/offoperationattheendofthesequence

•Polarityofloadonexternalcontrol(low/high)

•Loadon/offoperationatpoweringon

•ChoicebetweenGPIBandRS-232C

•GPIBaddresssetting

•RS-232Ccommunicationspeed

■ Ease of operationAlltheknobsandkeysnecessaryforthesettingoperationsareprovidedon the framepanel. You canperform the settingoperationsbyonehandwhile viewing themeasured voltageand current valuesdisplayedona channel-by-channel basis.Theanalog-like rotary knobs,whichemploy rotation speed-sensitiveencoders,and intuitivedesignmake thesystemveryeasytooperate.

■ Key lock functionThisfunctionlocksthepanelkeyssothatthesetvalues,memorydata,sequencesandothersettingscannotbechanged.

■ Numerous protection functionsThe system features the followingprotection functions - overcurrent protection (OCP), over powerprotection (OPP), over-voltageprotection(OVP),undervoltageprotection(UVP),overheatprotection(OHP)andreverseconnectionprotection(RVP).BecausetheOCP,OPPandUVPvaluescanbechangedonaper-channelbasis,youcanoptimizetheprotectionsettingsforeachdevicetobetested.

■ Soft start functionThesoftstart functionallowstherisetimeof thecurrent tobechangedafter the load-onoperation inconstantcurrentmode.Sincetherisetimeforthesystemcanbechangedaccordingtotheoutput-voltagerisetimeforthedevicebeingtested,youcanconduct testsunderhighly realistic loadconditions. (Thesoftstarttimecanbeselectedfromthefollowingoptions-0.1,1,3,5,10,30,100and300ms.)

■ Remote sensing functionThe remotesensing functioncompensates for voltagedrops inloadlines.Itisusedtosetresistanceandvoltagevaluescorrectlyandtomakeaccuratevoltageandpowermeasurements.Particularly, thefunction improvesthetransitionalcharacteristicsin constant voltageandconstant resistancemodes, leading tostableoperation.

■ ABC preset memoriesThreememoriesA,BandCareprovided for each range inconstant current, constant resistanceand constant voltagemodes,andthesetvaluescanbesaved.Thestoredsetvaluescanbecalledfreelyevenwhiletheloadisonandsavedagain.Intheconstantcurrent+constantvoltageandconstantresistance+constantvoltagemodes,theconstantcurrent and constant voltagememoriesand the constantresistanceand constant voltagememories canbe calledandsaved,respectively.

■ Setup memoriesUp to four of the set values listedbelowcanbe saved in thesetupmemories.Thesetvaluesarecalledorsavedforallthechannelssimultaneously.

•Operationmode(CC,CRandCV/+CV)•Current,resistanceandvoltagevaluesrecordedwhensaved•Rangesetting•Slewrate•Switchingfrequency,dutyfactorandlevel•Softstart•Configurationsettings•ABCpresetmemorydata•Autoloadofftimer•Sequence

Time0 Time0

When the soft start function is not used When the soft start function is used

Device being testedThis system

Set

cur

rent

Set

cur

rent

Soft start time

Performance and Functions

9

Electronic Load

PLZ-U Series

■ External controlsExternal controls are provided using the frame connector(FRAMECONT)andeachchannelconnector(CHCONT).The frame connector (FRAMECONT) lets you perform thechannel-synchronized load on/off, ABCpresetmemory call,setupmemory call, load status output and alarm status

outputoperations.Also, using the channelconnector (CHCONT),y o u c a n p e r f o r m t h eexternal voltage referen-cecontrol,loadon/offandi npu t c u r r en t mon i t o routputoperations.

Pin assignment of connector 1 (valid when ENABLE is at the low level)No. Signalname Input/output Function1 A CallspresetmemoryA.2 B CallspresetmemoryB.3 C CallspresetmemoryC.4 AUX Reserved5 MEM0 Callsetupmemory0.6 MEM1 Input*1 Callsetupmemory1.7 MEM2 Callsetupmemory2.8 MEM3 Callsetupmemory3.9 ENABLE Enablesloadon/off,callingofpreset

memoriesA,BandC,andcallingofsetupmemories0to3.*2

10 LOAD ON Turnsontheload.11 N.C.12 N.C. N.C.13 N.C.14 N.C.15 LOADSTATUS Settoonwhentheloadison.16 ALARMSTATUS Output*3 Settoonwhenanalarmispresent.17 +5VIF 5-Vmaximumoutputcurrent100mA18 N.C. N.C. N.C.19 GND GND GND(chassispotential)20 GND

*1 Input:Becomesactivewhensettothelowlevelandispulledupto5Vat10kΩ(low-levelinputvoltage=0to1V;high-levelinputvoltage=4to5V).

ThesignalbecomesvalidwhenENABLEissettothelowlevel.WhentwoormoresignalsaresettothelowlevelforABCpresetmemorycallandsetupmemorycall,

thelastonethatissettolowisregardedasvalid.*2WhenENABLEison,theseoperationsfromthepanelaredisabled.*3Output:Opencollectoroutput,outputwithstandvoltage30VDC,outputsaturation

voltageabout1.1V,maximumoutputcurrent100mA

Pin assignment of CH CONT connector 1No. Signalname Function1 COM Loadinputpin[–](minus)pinpotential2 IMON Loadinputcurrentmonitoroutput;0to10V,0%to100%

oftheratedcurrent3 EXTREF Externalvoltagereferenceinput;0to10V,0%to100%

of f.s4 LOAD ON/OFF

CONTLoadoninput.Whethertomakethissignalactiveattheloworhighlevelisdeterminedbythepolarityofloadon/offexternalcontrol,whichisamongtheconfigurationsettings.Pulledupto5Vat10kΩ.Low-levelinputvoltage=0to1V;high-levelinputvoltage=4to5V.

5 +12V 12-Vinternalpowersupplyoutput.Themaximumoutputcurrentis50mA.

■ Support for GPIB and RS232CThesystemcomesstandardwithGPIBandRS232Cinterfaces.Italsocomplieswiththefollowingstandards:

•IEEEStd488.2-1992IEEEStandardCodes,Formats,Protocols,andCommonCommandsForUseWithIEEEStd488.1-1987•IEEEStd488.1-1987IEEEStandardDigitalInterfaceforProgrammableInstrumentation•TIA/EIA-232F•StandardCommandsforProgrammableInstruments(SCPI)version1999.0

Meeting System Application Needs

10

■Specifications

RatingModel PLZ150U PLZ70UAOperatingvoltage(DC) 1.5 V to 150 V 0 V to 150 VCurrent/power Range H 30 A/150 W 15 A/75 W

M 3 A/150 W 1.5 A/75 WL 300mA/45W 150mA/22.5W

Isolationvoltageoftheloadinputterminal 500 VDCWithstandvoltagebetweenloadinputterminalchannels 500 VDCMinimumstartvoltage*1 0.3Vorgreater

*1 MinimumvoltageatwhichthecurrentstartsflowingtothePLZ-U. (ThePLZ-Udetectsnosignalataninputvoltagelessthanorequaltoapproximately0.3Vandaninputcurrentlessthanorequaltoapproximately1%of

therangerating.Therefore,iftheinputvoltageisgraduallyincreasedfrom0V,nocurrentwillflowuntil0.3Visexceeded.Ifacurrentgreaterthanorequalto1%oftherangeratingstartsflowing,thecurrentcanflowatvoltageslessthanequalto0.3V.)

CCmodeModel PLZ150U PLZ70UAOperatingrange Range H 0 A to 30 A 0 A to 15 A

M 0 A to 3 A 0 A to 1.5 AL 0Ato300mA 0Ato150mA

Selectablerange 0 % to 105 % of f.sResolution Range H 2mA 1mA

M 0.2mA 0.1mAL 0.02mA 0.01mA

Accuracyofsetting Range H,M,andL ±(0.2%ofset+0.2%off.s)+Vin*1/500kΩInputvoltagevariation*2 Range H 2mA

M 1mAL 0.1mA

Ripple rms*3 3mA 7.5mAp-p*4 30mA 50mA

*1 Vin:Loadinputterminalvoltage*2 Atacurrentgreaterthanorequalto(Vin/500kΩ)*3 Measurementfrequencybandwidth:10Hzto1MHz*4 Measurementfrequencybandwidth:10Hzto20MHz

CRmodeModel PLZ150U PLZ70UAOperatingrangeThevalueinsideparenthesesistheconductance.*1

Range H OPENto50mΩ(0Sto20S) OPENto100mΩ(0Sto10S)M OPENto500mΩ(0Sto2S) OPENto1Ω(0Sto1S)L OPENto5Ω(0Sto200mS) OPENto10Ω(0Sto100mS)

Selectablerange 0 % to 105 % of f.s *2ResolutionThevalueinsideparenthesesistheoperatingrange.

Range H 0.2mS(0Sto2S) 0.1mS(0Sto1S)2mS(2Sto20S) 1mS(1Sto10S)

M 20μS(0Sto200mS) 10μS(0Sto100mS)0.2mS(200mSto2S) 0.1mS(100mSto1S)

L 2μS(0Sto20mS) 1μS(0Sto10mS)20μS(20mSto200mS) 10μS(10mSto100mS)

Accuracyofsetting*3 Range H,M,andL ±(0.5%ofset*4+0.5%off.s*5)+Vin/500kΩ

*1 Conductance[S]=(Inputcurrent[A]/inputvoltage[V])=(1/resistance[Ω])*2 Conductancef.s*3 Convertedvalueintermsoftheinputcurrent,duringremotesensing*4 set=inputvoltage×specifiedconductance=(inputvoltage/specifiedresistance)*5 f.s=Ratedcurrentofthespecifiedrange

CVmodeModel PLZ150U PLZ70UAOperatingrange Range H 1.5 V to 150 V 0 V to 150 V

L 1.5 V to 15 V 0 V to 15 VSelectablerange 0 % to 105 % of f.sResolution Range H 10mV

L 1mVAccuracyofsetting Range HandL ±(0.1%ofset+0.1%off.s)Inputcurrentvariation*1 12mV

*1 Duringremotesensing

11

Electronic Load

PLZ-U Series

VoltmeterModel PLZ150U PLZ70UAMeasurementrange 0 V to 150.0 VResolution 15.75 V to 150 V 0.01 V

0 V to 15.75 V 0.001 VMeasurementaccuracy ±(0.1%ofrdg+15digits)

AmmeterModel PLZ150U PLZ70UAMeasurementrange Range H 0 A to 30 A 0 A to 15 A

M 0 A to 3 A 0 A to 1.5 AL 0mAto300mA 0mAto150mA

Resolution Range H 0.001 AM 0.0001 AL 0.01mA

Measurementaccuracy ±(0.2%ofrdg+0.3%off.s)

Wattmeter*1Model PLZ150U PLZ70UAMeasurementrange 0 W to 150 W 0 W to 75 WResolution 100Wminimum 0.01 W

100Worgreater 0.1 W

*1 Productofthemeasuredvoltageandmeasuredcurrent

SwitchingmodeModel PLZ150U PLZ70UAOperationmode CCandCRSelectablefrequencyrange 1Hzto20kHzDutycyclesetting 2%to98%,0.1%stepsFrequencyresolution 1Hztolessthan1kHz 1Hz

1kHztolessthan10kHz 10Hz10kHzto20kHz 100Hz

Accuracyoffrequencysetting ±(0.5%ofset)

SlewrateModel PLZ150U PLZ70UAOperationmode CCandCRSelectablerange(CC) Range H 0.10A/μsto2.40A/μs 0.05A/μto1.20A/μs

M 0.10A/μsto0.24A/μs 0.05A/μto0.12A/μsL 24mA/μs*1 12mA/μs*1

Selectablerange(CR) Range H 0.10A/μsto0.24A/μs 0.05A/μto0.12A/μsM 24mA/μs*1 12mA/μs*1L 2.4mA/μs*1 1.2mA/μs*1

Resolution 0.01A/μsAccuracyofsetting*2 ±(10%ofset+5μs)

*1 Fixedvalue*2 Timetoreachfrom10%to90%whenthecurrentischangedfrom2%to100%oftheratedcurrentofHrange.

SoftstartModel PLZ150U PLZ70UAOperationmode CCSelectabletimerange 0.1,1,3,10,30,100,or300msTimeaccuracy ±(30%ofset+100μs)

SequencefunctionModel PLZ150U PLZ70UASequence Operationmode CCandCR

Maximumnumberofsteps 255Stepexecutiontime 1msto9999sNumberofloops 1to9999(9999isinfiniteloop)

12

Protection functionModel PLZ150U PLZ70UAOvervoltageprotection(OVP) Turnsofftheloadat110%oftheratedvoltage

Overcurrentprotection(OCP)Setthevalueintherangeof0%to110%oftheratedcurrentofHrange.Tripsatthevalueor110%oftheratedcurrentoftherange,whicheverisless.TheactiontakenwhentheOCPtripscanbesettoloadofforlimit.

Overpowerprotection(OPP)Setthevalueintherangeof0%to110%oftheratedpowerofHrange.Tripsatthevalueor110%oftheratedpoweroftherange,whicheverisless.TheactiontakenwhentheOPPtripscanbesettoloadofforlimit.

Overheatprotection(OHP) Tripswhentheheatsinktemperaturereaches95°C.TheactiontakenwhentheOHPtripsistoturntheloadoff.

Reverseconnectionprotection(RVP) Short-termprotectionprovidedbyashort-circuitsystemusingaprotectiondiode.TheactiontakenwhentheOHPtripsistoturntheloadoff.

Undervoltageprotection(UVP) Setthevaluetoofforintherangeof0%to100%oftheratedvoltage.TheactiontakenwhentheOHPtripsistoturntheloadoff.

CommunicationfunctionModel PLZ150U PLZ70UA

GPIB

IEEEstd.488.2-1994SH1,AH1,T6,L4,SR1,RL1,PP0,DC1,DT1,C0,andE1SupportstheSCPIcommandsetSetspanelfunctionsexceptthePOWERswitchandkeylockandreadsmeasuredvalues

RS232C

D-SUB9-pinconnector(conformstoEIA-232-D)SetspanelfunctionsexceptthePOWERswitchandkeylockandreadsmeasuredvaluesBaudrate:2400,4800,9600,or19200bps;stopbit:1;datalength:8bits;parity:NONE;andflowcontrol:XON/OFF.

Inter-framecontrolandexternalcontrolModel PLZ150U PLZ70UAInter-framecontrol Controlsuptofourslaveframesfromthemasterframe.

Enablesyoutoturnon/offtheload,recallpresetsABConallchannelssimultaneously,andrecallsetupmemories0to3.

Externalcontrol

Recallinputofpresetmem-oriesA,B,andC RecallspresetmemoriesA,B,andConallchannelssimultaneouslySetupmemoryrecallinput Recallsthesetupmemory0to3

Enableinput Enablestheturningon/offoftheload,recallingofpresetsABConallchannelssimultaneously,andrecallingofsetupmemories0to3.

Load-oninput Turnsontheloadonallchannelssimultaneously.Loadonstatusoutput Onwhentheloadison(opencollectoroutput)Alarmstatusoutput Onwhenthealarmison(opencollectoroutput)Internalpoweroutput 5Vandmaximumoutputcurrentof100mA

Inputsignal Lowactive,pullupto5Vusing10kΩ.Lowlevelinputvoltage:0Vto1V,highlevelinputvoltage:4Vto5V

Outputsignal Opendrain,outputwithstandvoltageof30VDC,outputsatura-tionvoltageofapproximately0.7V,andmaximumoutputcurrentof100mA.

RemotesensingModel PLZ150U PLZ70UASensingvoltagethatcanbecompensated 2Vforasingleline

MiscellaneousModel PLZ150U PLZ70UAABCpresetmemories Savessettings(A,B,andC)foreachoperationmodeofeachrangeSetupmemories Savesfoursetsofsetupparameters

Elapsedtimedisplay Measuresthetimefromwhentheloadisturnedontowhentheloadisturnedoff(0.1sto99999s)

Autoloadofftimer Turnsofftheloadafterthespecifiedtimeelapses(offor1sto99999s)Delayedload-on Turnsontheloadafterthespecifiedtimeelapses(0msto1s,10mssteps)Paralleloperation Possiblebetweenadjacentloadunits(samemodel)intheframe.

■Specifications

13

Electronic Load

PLZ-U Series

ExternalanalogcontrolModel PLZ150U PLZ70UAPoweroutput 12Vandmaximumoutputcurrentof50mA.

Externalvoltagecontrolinput*1 OperatesinCC,CR,andCVmodes.0%to100%off.sintherangeof0Vto10V.

Load-oninput. Lowactive(orhighactive),pullupto5Vusing10kΩ.Lowlevelinputvoltage:0Vto1V,highlevelinputvoltage:4Vto5V

Currentmonitoroutput 0%to100%oftheratedcurrentintherangeof0Vto10VCommon Negativepinelectricpotentialoftheloadinputterminal

*1 ThetimeforupdatingthesettinginCRorCVmodeisapproximately100ms.

GeneralSpecificationsModel PLZ150U PLZ70UAWeight Approx.2kg(4.41lb)

Accessories

Rearloadinputterminalcover 1pc.Setofscrewsfortheloadinputconnector 2sets(M6bolt,M6nut,M6springwasher,M4screw)Loadunitattachmentscrews 2pcs.(M3-10screws,attachedtotheunit)Sensingterminalscrewontherearpanel 2pcs.(M3-6screws,attachedtotheunit)

Model PLZ30F PLZ50FRatedsupplyvoltage 100VACto240VAC(90VACto250V)singlephaseRatedfrequency 50Hzor60Hz(47Hzto63Hz)Powerconsumption

Framealone 33 VA or less 40VAorlessWhenloadunitsareinstalledinallchannels 300VAmax 500VAmax

Coolingsystem Forcedaircoolingusingaheatsensingvariablespeedfan.Operatingtemperaturerange 0°Cto40°C(32°Fto104°F)Operatinghumidityrange 20%to85%RH(withoutcondensation)Storagetemperaturerange –20°Cto70°C(-4°Fto158°F)Storagehumidityrange 90%RHorless(withoutcondensation)Insulationresistance Primary-chassis 500VDC,30MΩormore(ambienthumidityof70%RHorless)

Withstandvoltage Primary-chassis Noabnormalitiesat1500VACfor1minute.

Groundcontinuity 25Aac,0.1Ωorless

Batterybackup BacksupthesetupdataimmediatelybeforethepoweristurnedoffBatterylife:3yearsorlonger(at25°C)

Numberofinstallableloadmodules 3 5Dimensions(mm) Seeoutlinedrawing.Weight Framealone Approx.5kg(11.02lb) Approx.7kg(15.43lb)

Accessories

Powercord 1pc.(withSVT3,18AWG,3-prongplug,cablelengthof2.4m)Blankpanel(frontpanel) 2pcs.maximum*1 4pcs.maximum*1Protectiondummyplug 2pcs.(fortheFRAMECONTconnector,attachedtotheunit)Operationmanual 1pc.

Electromagneticcompatibility*1,*2

ConformstotherequirementsofthefollowingdirectivesandstandardsEMCDirective2014/30/EU

EN61326-1(ClassA)EN55011(ClassA,Group1)

EN61000-3-2EN61000-3-3

Safety*3,*4Conformstotherequirementsofthefollowingdirectivesandstandards

LowVoltageDirective2014/35/EUEN61010-1(ClassI,Pollutiondegree2)

*1 Inproductsthathaveloadunitsinstalled,blankpanelsareinstalledintheemptyslots.Inproductsthatcontaintheframealone,themaximumnumberofblankpanelsareinstalled.

*2 OnlyonmodelsthathaveCEmarkingonthepanel.*3 Notapplicabletocustomordermodels.*4 Thisunit isaClass1device.Besure toground theprotectiveconductor terminalof theunit.Thesafetyof theunit isnotguaranteedunless theunit is

groundedproperly.

14

292(11.50)

128 (5.04)M

AX

145(5.71)

MAX10(0.39)

MAX315(12.40)435(17.13)

128 (5.04)M

AX

145(5.71)

MAX10(0.39)

MAX460(18.11)MAX 470(18.50)

400(15.75)MAX 20

(0.79)

Unit: mm (inch)

149

24.5

100460

480

KRB150-PLZ-30F

132

(5.2

0)

37.5

(4.4

8)57

(2.2

4)

482 (18.98)

465 (18.31)

KRB3-PLZ-30F

Unit: mm (inch) Unit: mm

149

100

24.5

484.4465465 (18.31)

KRB150-PLZ-50F

132

(5.2

0)

484.4 (19.07)

37.5

(1.4

8)57

(2.2

4)

KRB3-PLZ-50F

Unit: mm (inch) Unit: mm

PLZ70UA(0 V input type)

H range

PLZ70UA(0 V input type)

M range

PLZ70UA(0 V input type)

L range

PLZ150U(1.5 V input type)

H range

PLZ150U(1.5 V input type)

M range

PLZ150U(1.5 V input type)

L range0.1

1

10

100

0.001 0.01 0.1

150

5

0.15

0.1

1

10

100

0.1 1 10

Operating area where specifications are guaranteed

75 W

150

5

15

0.1

1

10

100

0.01 0.1 1

150

5

1.5

50

75 W

0.1

1

10

100

0.1 1 10Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Operating area where specifications are guaranteed

Actual operating area

150 W

150

5

1.5

303

Low voltage area

0

0.5

0 10

Operating area where specifications are guaranteed

1.5

2.0

1

20 30

Actual operating area

Low voltage area

Low voltage area

0

0.5

1.0

0 0.1

1.5

2.0

0.2 0.30.1

1

10

100

0.01 0.1 1

150

5

1.5

0.3 3

50

150 W

0

0.5

1

0 0.1

1.5

2

0.2 0.30.1

1

10

100

0.001 0.01 0.1

150

5

1.5

0.3

50

Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Input current [A]

Inpu

t vol

tage

[V]

Operating area where specifications are guaranteed

Actual operating area

Actual operating area

Operating area where specifications are guaranteed

Actual operating area

Operating area where specifications are guaranteed

Actual operating area

Operating area where specifications are guaranteed

Input current [A]

Inpu

t vol

tage

[V]

Operating area where specifications are guaranteed

■External Dimensions and Rack Mounting

15

Electronic Load

PLZ-U Series

PLZ-U Series ComponentProductneme Modelname Remarks

LoadUnit PLZ70UA 75W/15A,0V-150V

LoadUnit PLZ150U 150W/30A,1.5V-150V

Frame(3ch) PLZ-30F accommodatingupto3ealoadmodules

Frame(5ch) PLZ-50F accommodatingupto5ealoadmodules

Ordering code *PleaseinquirebyfollowingcodeModelname Framemodel PLZ70UA PLZ150U Totalnumberofunit

PLZ30F-70UA0-150U1

PLZ-30F

0 1 1

PLZ30F-70UA0-150U2 0 2 2

PLZ30F-70UA0-150U3 0 3 3

PLZ30F-70UA1-150U0 1 0 1

PLZ30F-70UA1-150U1 1 1 2

PLZ30F-70UA1-150U2 1 2 3

PLZ30F-70UA2-150U0 2 0 2

PLZ30F-70UA2-150U1 2 1 3

PLZ30F-70UA3-150U0 3 0 3

PLZ50F-70UA0-150U1

PLZ-50F

0 1 1

PLZ50F-70UA0-150U2 0 2 2

PLZ50F-70UA0-150U3 0 3 3

PLZ50F-70UA0-150U4 0 4 4

PLZ50F-70UA0-150U5 0 5 5

PLZ50F-70UA1-150U0 1 0 1

PLZ50F-70UA1-150U1 1 1 2

PLZ50F-70UA1-150U2 1 2 3

PLZ50F-70UA1-150U3 1 3 4

PLZ50F-70UA1-150U4 1 4 5

PLZ50F-70UA2-150U0 2 0 2

PLZ50F-70UA2-150U1 2 1 3

PLZ50F-70UA2-150U2 2 2 4

PLZ50F-70UA2-150U3 2 3 5

PLZ50F-70UA3-150U0 3 0 3

PLZ50F-70UA3-150U1 3 1 4

PLZ50F-70UA3-150U2 3 2 5

PLZ50F-70UA4-150U0 4 0 4

PLZ50F-70UA4-150U1 4 1 5

PLZ50F-70UA5-150U0 5 0 5

Options *forconnectionbetweenframesControlFlatCabel

PC01-PLZ-4W(300mm)

PC02-PLZ-4W(550mm)

■Ordering Code

■All products contained in this catalogueareequipment anddevices that arepremisedonuseunder thesupervisionofqualifiedpersonnel,andarenotdesignedorproducedforhome-useorusebygeneralconsumers.■Specifications,designandsofortharesubjecttochangewithoutpriornoticetoimprovethequality.■Productnamesandpricesaresubjecttochangeandproductionmaybediscontinuedwhennecessary.■Productnames,companynamesandbrandnamescontainedinthiscataloguerepresenttherespectiveregisteredtradenameortrademark.■Colors,texturesandsoforthofphotographsshowninthiscataloguemaydifferfromactualproductsduetoalimitedfidelityinprinting.■Althougheveryefforthasbeenmadetoprovidetheinformationasaccurateaspossibleforthiscatalogue,certaindetailshaveunavoidablybeenomittedduetolimitationsinspace.■Ifyoufindanymisprints or errors in this catalogue, itwouldbeappreciated if youwould informus.■ Please contact our distributorstoconfirmspecifications,price,accessoriesoranythingthatmaybeunclearwhenplacinganorderorconcludingapurchasingagreement.

■Distributor:

Printed in Japan Issue:Nov.2019 201911PDFEC91

www.kikusui.cnRoom 305,Shenggao Building , No.137,Xianxia Road, Shanghai City, China Phone : 021-5887-9067 Facsimile : 021-5887-9069

www.kikusuiamerica.com1-310-214-00003625 Del Amo Blvd, Suite 160, Torrance, CA 90503Phone : 310-214-0000 Facsimile : 310-214-0014

Southwood 4F,6-1 Chigasaki-chuo,Tsuzuki-ku,Yokohama,224-0032,JapanPhone: (+81)45-482-6353,Facsimile: (+81)45-482-6261,www.kikusui.co.jp

Option■ Sequencecreationsoftware WavyforPLZ-U

[Operatingenvironment]Windows 7 / Windows8*Fordetails,pleaserefertoourwebsite.

The software extends the feature of waveform generation and sequence functions.Using a mouse, you can create and edit feel like drawing and filling out the spreadsheet.

▲Screensample

■Itmakesyoueasiertocreateoreditthetestconditionfilerequiredforthesequenceoperation.■Byusingthestoragefunctionoftestconditiondatafile, itenablesyoutomanagethetestconditionofthestandardroutinetest.■Theprogressofexecutionsequencewillbedisplayedonthe"executiongraph"withthesettingvalueandthecursor.■Itispossibletoobservetheintuitionisticoutputthroughbythe"monitorgraph"thatplotstheongoingmonitorvalue.■Youcansavetheacquiredmonitordataasatestresult.■Supportsthestatusofdescriptionofsequencestepfor"selected"or"notselected". Itenablesyoutoselectdependsontherequirementsuchasthe"pausingfunction","triggerfunction",or"ACwaveform".

https://www.kikusui.co.jp/en/download/index.html

Download !Trial version is available on our web !!

“Wavy”sequencecreationsoftware

Wavy series