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SPECIFICATION SUBMITTAL Page
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GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 1 04.07.17
GRX-DACPI Automatic Daylighting
Control
Description
•Savesenergyinspaceswithwindows,skylights,or
doors.Automaticallydimslightswhenthesunisbright.
•MonitorsambientdaylightviaLutronsMW-PS-WH
photosensoror0-10V-photosensorbyothers.
•AutomaticallyselectsscenesinGRAFIKEyeControl
Unitsbasedontheamountofdaylightavailable.
•Helpsmaximizeenergysavingswith“enforce”mode
–automaticcontroloverrideslightingsetbyoccupants.
•Eliminates“passingcloud”effectwithatwo-minute
“rangequalication”timer.
•WorkswithGRAFIKEye3000and4000Series
ControlUnits.SelectsscenesinjustoneControlUnit
oragroupofuptoeightControlUnits.
Functionality
•IntheGRX-DACPIDaylightingControl,thresholdsare
settodenedifferentrangesofdaylight.
•IntheControlUnit(s),scenesaresetuptocomplement
theselevels.
•TheGRX-DACPImonitorsambientlight,automatically
selectingscenesasdaylightlevelscrossthresholds.
•TheGRX-DACPIallowssetupoffour“banks”of
thresholdsandscenes.
•Threedifferentthresholdscanbesetupforeachbank.
•Usethebankselectkeystoselectwhichbankthe
GRX-DACPIuses.
•TheGRX-DACPIautomaticallyselectsscenesbased
onthebankselectedandtheamountofdaylight
available.Thisprovides12differentthresholdsthat
call16differentControlUnitlightingscenes.Create
thresholdsandscenesfordifferenttimesoftheday
(morningvs.afternoon)oryear(wintervs.spring).
•Thresholdsdeneranges.Rangescallscenes.
•TheGRX-DACPIprovidesfourbanks.
•Enterthreethresholdsforeachbank.
•Thefourscenesshownatrightareautomatically
calledwhenthresholdsarecrossed.
Cover(shownopen)
Photocell
calibrate
Bank
selection
Threshold1-3
raise/lower
Scene
selection
buttons Enforce
Bank1 Scene1 Scene2 Scene3 Scene4
Bank2 Scene5 Scene6 Scene7 Scene8
Bank3 Scene9 Scene10 Scene11 Scene12
Bank4 Scene13 Scene14 Scene15 Scene16
Range 1
0-25%
Threshold1=25%
Range 2
26-50%
Threshold1=50%
Range 3
51-75%
Threshold3=75%
Range 4
76-100%
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SPECIFICATION SUBMITTAL Page
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GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 2 04.07.17
Specifications
Standards
•CaliforniaEnergyCommission(CEC)Listed
•Forcommercialuse,ClassAonly
•cULuslisted
Power
•Low-voltageClass2(PELV)
•OperatingVoltage:12/24V-
Automatic Daylighting Control
•Automaticallyselectspresetlightingscenesin
responsetoambientdaylight.
•Providesfour“banks.Eachbankprovidesthree
thresholds(levelsofambientdaylight)andfour
scenes.
•Allowsphotosensorinputtooverridemanualscene
selection.
•Featuresa“RangeQualicationtimer.Whenchanges
indaylightcauseascenechange,theGRX-DACPI
waits2minutesbeforeanother“automatic”scene
change.(Sceneselectionbuttonsworkimmediately.)
Photosensor Input
•AcceptsuptothreeMW-PS-WHphotosensors
wiredinparallelorone0-10V-photosensorby
others.
•Averagesreadingsfromuptothreephotosensors
wiredinparallel.
•Providespush-buttonphotosensorcalibration.
Key Design Features
•MeetsIEC801-2.Testedtowithstand15kV
electrostaticdischargewithoutdamageormemory
loss.
•Faceplatesnapsonwithnovisiblemeansof
attachment.
System Communications and Capacity
•Low-voltageClass2(PELV)wiringconnectsthe
GRX-DACPItoGRAFIKEyeControlUnitsandother
components.
Environment
•32-104°F(0-40°C).90%non-condensingrelative
humidity.
Dimensions and Mounting
A=8.31in(211mm), B=5.44in(138mm)
C=8.94in(227mm), D=3.94in(100mm)
A
B
C
D
SideView
0.31in
(8mm)
1.94in
(49mm)
4.56in
(116mm)
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SPECIFICATION SUBMITTAL Page
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GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 3 04.07.17
Functions
Buttons and Setting Function
Sceneselectionbuttons Selectscenes:
•1to4withbank1
•5to8withbank2
•9to12withbank3
•13to16withbank4
Bankselection •SelectwhichbanktheGRX-DACPIuses.
•LED1lightsforbank1,LED2forbank2,etc.
Thresholdraise/lower Usedtosetup3thresholdsforeachbank.Eachthresholdmust
beequaltoorlowerthanthenextthreshold.Example:
ThresholdCanbesetasavaluebetween:
10-25%
225-50%
350-75%
Photocellcalibratebutton CalibratesthephotocellconnectedtotheGRX-DACPI
EnforcetogglebuttonandLED ForcestheGRX-DACPItore-selecttheappropriatesceneevery
5minutes,evenifdaylightlevelsstaythesame.LEDlightswhen
enforcemodeison.
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SPECIFICATION SUBMITTAL Page
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GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 4 04.07.17
Wiring for Lutron MW-PS-WH Photocell
Supply
Signal
Common
Common
N/C
N/C
N/C
N/C
N/C
4)IN
3)IN
4)OUT
3)OUT
1)Com
CUWIREONLY
0-10 V in
2) +V
RED:Supply
YELLOW:
Signal
BLACK:Common
GRX-DACPI
MW-PS-WH
Photosensor
(3)18AWG(1.0mm
2
)
Wiring for Lutron MW-FPS Photocell
Supply
Signal
Common
Common
N/C
N/C
N/C
N/C
N/C
4)IN
3)IN
4)OUT
3)OUT
1)Com
CUWIREONLY
0-10 V in
2) +V
RED:Supply
YELLOW:
Signal
BLACK:Common
GRX-DACPI
MW-FPS
Photosensor
(3)18AWG(1.0mm
2
)
4
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SPECIFICATION SUBMITTAL Page
Job Name:
Job Number:
Model Numbers:
GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 5 04.07.17
0-10 V- Input Wiring
0-10V-inputfromphotomeasurementequipmentby
othermanufacturers.
Supply
Signal
Common
Common
N/C
N/C
N/C
N/C
N/C
4)IN
3)IN
4)OUT
3)OUT
1)Com
CUWIREONLY
0-10 V in
2) +V
(1)twistedpair
18AWG(1.0mm
2
)
GRX-DACPI
Wiring for Lutron C-SR-M1 Photocell
Supply
Signal
Common
Common
N/C
N/C
N/C
N/C
N/C
4)IN
3)IN
4)OUT
3)OUT
1)Com
CUWIREONLY
0-10 V in
2) +V
RED:Supply
YELLOW:
Signal
BLACK:Common
WHITE:Notused
GRX-DACPI
C-SR-M1
Photosensor
(3)18AWG(1.0mm
2
)
5
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SPECIFICATION SUBMITTAL Page
Job Name:
Job Number:
Model Numbers:
GRAFIK Eye GRX-DACPI Control Interfaces
3691050a 6 04.07.17
Low-Voltage Class 2 (PELV) Wiring
•Uselow-voltageClass2(PELV)wiringtodaisy-chain
theGRX-DACPItoGRAFIKEyeControlUnitsand
othercomponents.
•Makeconnectionsinsidethewallboxorinaswitch/
junctionboxwithamaximumwirelengthof8ft
(2.5m)fromthelinktotheGRX-DACPI.
When used with GRAFIK Eye 3000 Control Units:
•Two18AWG(1.0mm
2
)conductorsforcommon
(terminal1)and12VDirectCurrent(terminal2)
controlwiring.
•Oneshielded,twistedpair18AWG(1.0mm
2
)for
datalink(terminals3and4).
When used with GRAFIK Eye 4000 Control Units:
•Two12AWG(2.5mm
2
)conductorsforcommon
(terminal1)and24VDirectCurrent(terminal2)
controlwiring.
•Oneshielded,twistedpair18AWG(1.0mm
2
)for
datalink(terminals3and4).
•ConnectDrain/Shieldasshown.Donotconnect
toGround(Earth)orWallstation.Connectthebare
drainwiresandcutofftheoutsideshield.
Supply
Signal
Common
Common
N/C
N/C
N/C
N/C
N/C
4)IN
3)IN
4)OUT
3)OUT
1)Com
CUWIREONLY
0-10 V in
2) +V
GRX-DACPI
ControlWiring
DataLinkDrain/Shield
)Lutron,Lutron,andGRAFIKEyeare
trademarksofLutronElectronicsCo.,Inc.
registeredintheU.S.andothercountries.
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