LEGO Energy Meter User manual

EnergyStorage
EnergyDisplay
LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 1
LEGO®Energy Meter
How to get started
TheEnergyMeterconsistsoftwopartstheLEGO®EnergyDisplayandLEGOEnergy
StorageTheEnergyStoragefitsontothebottomoftheEnergyDisplay
ToinstalltheEnergyStoragesimplyslideitdownontotheEnergyDisplay
ToremovetheEnergyStoragepresstheplastictabonthebackand
presstheEnergyStoragedowntoslideitoff

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 2
Element Guide
How to charge and discharge the Energy Meter
InordertoachievefullcapacityonyourEnergyStoragewerecommendthatyou
chargeanddischargetheEnergyMeterthreetimesuponinitialusebutalsoafter
everysixmonthsofuseorafteralongstorageperiod
TokeepfullcapacityoftheEnergyMeterandtoensurealonglifetimeoftheEnergy
Storagepleasefollowthechargeanddischargeprocedureasdescribedhere
TochargetheEnergyMeter
•ConnecttheEnergyMetereithertotheLEGO®PowerFunctionsBatteryBox
suppliedwithsixnewbatteriesortheLEGOPowerFunctionsRechargeable
BatteryBoxinordertochargetheEnergyStorage
•TurnontheEnergyMeterbypressingthegreenOn/Offbuttoncheckthatthe
displayison
•LettheLEGOPowerFunctionsBatteryBoxortheLEGOPowerFunctions
RechargeableBatteryBoxchargetheEnergyMeterbyleavingthemconnectedfor
threehoursoruntilthedisplayturnsoff
TodischargetheEnergyMeter
•DisconnectallwiresandotherdevicesfromtheEnergyMeter
•PressthegreenOn/Offbuttonforsecondsuntilatrianglewithanexclamation
markappearsblinkingwithonesecondintervalsonthedisplay
•LettheEnergyMeterremainlikethisforapproximately½hoursoruntilthe
displayturnsoff
IfyouwishtocancelthedischargesimplypresstheOn/Offbuttontoturnoffthe
EnergyMeterToreturntonormalmodeturnontheEnergyMeteragain
FormoreinformationseewwwLEGOeducationcom

EnergyDisplay
Input
plug
Display
Directionalcontrolswitch
On/Offbutton
Outputplug
EnergyStorage
LEGO®MINDSTORMS®
OutputPort
LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 3
Element Guide
Howitworks
TheEnergyMetercanmeasurestoreandreleasegeneratedenergy
Functionality
EnergyDisplay
MINDSTORMSOutputPort
FormoreonhowtousetheEnergyMetertogetherwithLEGOMINDSTORMSsee
wwwMINDSTORMSeducationcom
Directionalcontrolswitch
UsethedirectionalcontrolswitchtooperatetheoutputfunctionByturningthe
switchineitherdirectionwithpoweronyoucancontroltheoutputfunctionInthe
middlepositiontheoutputfunctionisoff
On/Offbutton
PresstheOn/OffbuttondownoncetoturntheEnergyMeteronandoncemoreto
turnitoff
PressingdownandholdingtheOn/Offbuttondownfortwosecondswillresetjoules
measurementtoJ
Outputplug
ConnecttheE-MotortotheoutputplugandreadtheEnergyMeter’spoweroutput
AminimumofJmustbestoredbeforeanoutputcanbedrawnfromthe
EnergyMeter
Inputplug
ConnecttheSolarPanelorE-Motorusedasageneratortotheinputplugandread
theEnergyMetermeasurements

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 4
Element Guide
DisplayMeasurements
Accumulatedjoules
ThemaximumamountofaccumulatedjoulesthatcanbestoredisJ
ThereadingofJwillstartblinkingonthedisplaywithonesecondintervals
whenthismaximumisreachedInputvoltagewillremainmeasuredinthedisplay
butinputcurrentandinputwattagewillgotozeroTheoutputmeasurementswill
dependontheloadappliedPressingdownandholdingtheOn/Offbuttonfortwo
secondswillresetthejoulesmeasurementtoJPleasenotethatthisisnotan
indicationofthechargedstatusoftheEnergyStorage
Blinkinglightningsymbol
Alightningsymbolappearsblinkingwithonesecondintervalsonthedisplaywhen
oneoftwopossiblesituationshaveoccurred
• Ifthenumberofjoulesremainsthesamethenyoushouldbeabletocontinueyour
activitybuttheEnergyStoragepowerlevelislowandyoushouldsoonchargethe
EnergyMeter
TheEnergyStorageshouldbechargedbeforeeachlesson
• IfthenumberofjoulesresetstoJandoutputvoltagegoestozerothenthe
EnergyMeterhasbeenoverloadedandmustberecharged
DonotoverloadtheEnergyMeter
Constantlightningsymbol
AconstantlightningsymbolappearsontheEnergyMeterdisplaywhentheEnergy
Storageneedstobecharged
Error
Atrianglewithanexclamationmarkappearsonthedisplaywhenthereisanerroron
theEnergyStorageMeasurementsarenotvalidRemovetheEnergyStoragecheck
theconnectingpartsandseeiftheyneedcleaningReconnecttheEnergyStorage
totheEnergyDisplayandchargetheEnergyMeterIftheerrortrianglereappears
replacewithanewEnergyStorage
Inputvoltage Inputcurrent Inputwattage
Accumulatedjoules
Outputvoltage Outputcurrent Outputwattage

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 5
Element Guide
EnergyStorage
TheEnergyStoragestorestheenergyyouhavegeneratedMeasurementsonthe
EnergyDisplayarenotvalidwhendisconnectedfromtheEnergyStorage
ThelifespanoftheEnergyStoragedependsheavilyonthewayitisused
maintainedandstoredStoretheEnergyStorageatroomtemperatureinaclean
dryplaceawayfromheatHeatfrostandlongdischargeperiodscansignificantly
shortentheexpectedlifespanoftheEnergyStorageDisconnecttheEnergyStorage
afteruseItisnecessarytorechargetheEnergyStorageafteralongstorageperiod
TechnicalSpecifications
TheEnergyMeterwilldisplaymeasurementsintherangeof
• VtoVinputvoltage
• AtoAinputcurrent
• PVxIPinputwattage
• JtoJaccumulatedjoules
• VtoVoutputvoltage
• AtoAoutputcurrent
• PVxIPoutputwattage
RefreshRateandAveragingMeasurements
Displaymeasurementsarerefreshedeverysecondstheyarecalculatedby
averagingthemeasurementsatequalintervalsofpersecondsDepending
ontheinputthisshouldgivefairlyconstantandeasilyidentifiablemeasurements
TakegoodcareofyourEnergyMeter
• Donotbendorpushhardonitorelementsconnectedtoit
• Donotsteponorotherwiseplaceheavyweightsonit
• Donotdropit
• Donotshortcircuitit
• DonotexceedthemaximumVsupplyvoltage
• DonotoverloadtheEnergyMeterasthiswillcauseittodischarge
• Itisnotwaterproof
• Storeatroomtemperatureinacleandryplaceawayfromheatandfrost
• TheEnergyStorageshouldbechargedbeforeeachlesson

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 6
Element Guide
LEGO®Solar Panel
Howitworks
SolarPanelscanconvertsolarenergyintoelectricalenergyTheideallightsource
isfullnaturalsunlightWhenincandescentlightbulbsareusedbecautiousthey
producealotofheatandthelightbulbshouldonlybeonforshortperiodsatatime
AlsokeepthelightbulbatareasonabledistancefromtheSolarPanelatleastcm
orinandincreasethedistanceorturnoffthelightbulbiftheSolarPanel
getshot
Donotuseenergysavinglightbulbsthelighttheyemitisinsufficientlybright
AnenergysavinglightbulbemitsaverylowamountoflightintheIRrange
nm
Functionality
SolarPanel
TheSolarPanelconsistsoffourteensolarcellsandfourdiodeswithatotalvoltage
outputofapproximatelyV
Outputplug
TheoutputplugletsyoutransfertheenergyfromtheSolarPaneltoelementslikethe
LEGO®EnergyMeterortheE-Motor
TechnicalSpecifications
WithoptimallightsettingstheSolarPanelprovidessufficientpowertooperatethe
EnergyMeterandE-MotorItdelivers
• VmAatluxdaylightoutdoors
• VmAatluxindoorsunlight
• VmAatluxWincandescentbulbpositionedcminfrom
theSolarPanel
• VmAatluxWincandescentbulbpositionedcminfrom
theSolarPanel
SolarPanel
Outputplug

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 7
Element Guide
TakegoodcareofyourSolarPanel
• Donotbendorpushhardonitorelementsconnectedtoit
• Donotsteponorotherwiseplaceheavyweightsonit
• Donotdropit
• Donotshortcircuitit
• KeepthelightbulbatareasonabledistancefromtheSolarPanelatleast
cminandincreasethedistanceorturnoffthelightbulbiftheSolar
Panelgetshot
• Itisnotwaterproof
• Storeatroomtemperatureinacleandryplaceawayfromheatandfrost

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2014 The LEGO Group. 068923. 8
Element Guide
E-Motor
Howitworks
TheE-MotorisaVmotorwithaninternalgearboxTheE-Motorcanalsoworkasa
generatorofelectricalenergy
Functionality
Axlehole
InsertanaxleandmakeitturntousetheE-Motoraseitheramotororagenerator
Input/outputplug
Theinput/outputplugallowsyoutotransferelectricalenergyfromtheE-Motorto
elementsliketheEnergyMeterandLEDLightsortotransferelectricalenergytothe
E-MotorfromelementsliketheSolarPanelortheEnergyMeter
TechnicalSpecifications
Withoutloaditsrotationspeedisaroundrotationsperminuteanditdelivers
• MaximumtorqueofN/cm
• Vmotor
• gearing
• cminwire
TakegoodcareofyourE-Motor
• Donotbendorpushhardonitorelementsconnectedtoit
• Donotsteponorotherwiseplaceheavyweightsonit
• Donotdropit
• Donotshortcircuitit
• DonotexceedthemaximumVsupplyvoltage
• Donotleaveitinastalledcondition
• Itisnotwaterproof
• Storeatroomtemperatureinacleandryplaceawayfromheatandfrost
Axlehole
Input/outputplug