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SPECIFICATION SUBMITTAL
omx-dacpi-1 05.03.04
Control Interfaces
OMX-DACPI
GRAFIK Systems
OMX-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 Lutron’s
MW-PS-WH photosensor or 0-10V
photosensor by others.
• Automatically selects scenes 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 qualification” timer.
• Works with GRAFIK 5000, 6000, and
7000 Systems.
Functionality
• In the OMX-DACPI Daylighting Control,
thresholds are set to define different
ranges of daylight.
• The OMX-DACPI monitors ambient
light, automatically selecting scenes as
daylight levels cross thresholds.
• The OMX-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 OMX-DACPI uses.
• The OMX-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).
Cover (shown open)
Bank
selection
Threshold 1-3
raise/lower
Scene selection
buttons
Photocell
calibrate
Enforce
• Thresholds define ranges. Ranges call scenes.
• The OMX-DACPI provides four banks.
• Enter three thresholds for each bank.
• The four scenes shown below are automatically called
when thresholds are crossed.
Bank 1
Bank 2
Bank 3
Bank 4
Scene 1
Scene 5
Scene 9
Scene 13
Scene 2
Scene 6
Scene 10
Scene 14
Scene 3
Scene 7
Scene 11
Scene 15
Scene 4
Scene 8
Scene 12
Scene 16
Range 1
0-25%
Range 2
26-50%
Range 3
51-75%
Range 4
76-100%
Threshold 1 = 25%
Threshold 2 = 50%
Threshold 3 = 75%
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omx-dacpi-2 05.03.04
Control Interfaces
OMX-DACPI
GRAFIK Systems
Power
Low-voltage Class 2 (PELV)
Operating Voltage: 32 V Direct Current.
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 Qualification” timer. When
changes in daylight cause a scene change, the
OMX-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 0-10V photosensor by
others.
• Averages readings from up to three
photosensors wired in parallel.
• Provides push-button photosensor calibration.
Dimensions And Mounting
Side View
C
D
B
A
A = 8 5/16" (208mm), B = 5 7/16" (138mm)
C = 8.94" (208mm), D = 3 15/16 (85mm)
4 9/16"
(116mm)
5/16"
(8mm)
1 15/16"
(49mm)
Specifications
Key Design Features
• Meets IEC 801-2. Tested to withstand 15kV
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 OMX-DACPI to Processor Panels.
Environment
32-104°F (0-40°C). 90% non-condensing
relative humidity.
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omx-dacpi-3 05.03.04
Control Interfaces
OMX-DACPI
GRAFIK Systems
Functions
Buttons and Settings
Scene selection buttons
Bank selection
Threshold raise/lower
Photocell calibrate button
Enforce toggle button and LED
Function
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
• Select which bank the OMX-DACPI uses.
• LED 1 lights for bank 1, LED 2 for bank 2, etc.
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%
Calibrates the photocell connected to the
OMX-DACPI.
Forces the OMX-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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omx-dacpi-4 05.03.04
Control Interfaces
OMX-DACPI
GRAFIK Systems
Supply
Signal
Common
Common
0-10VDC in
N/C
N/C
N/C
N/C
N/C
2) +VDC
4) IN
3) IN
4) OUT
3) OUT
1) Com
CU WIRE ONLY
0-10VDC input from photo measurement equipment
by other manufacturers.
Supply
Signal
Common
Common
0-10VDC in
N/C
N/C
N/C
N/C
N/C
2) +VDC
4) IN
3) IN
4) OUT
3) OUT
1) Com
CU WIRE ONLY
Wiring for Lutron MW-PS-WH Photocell
0–10VDC Input Wiring
(3) #18 AWG
(1.0mm
2
) wires
MW-PS-WH
Photosensor
BLACK: Supply
RED: Signal
WHITE: Common
OMX-DACPI
OMX-DACPI
(1) twisted pair
#18 AWG (1.0mm
2
)
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omx-dacpi-5 05.03.04
Control Interfaces
OMX-DACPI
GRAFIK Systems
Supply
Signal
Common
Common
0-10VDC in
N/C
N/C
N/C
N/C
N/C
2) +VDC
4) IN
3) IN
4) OUT
3) OUT
1) Com
CU WIRE ONLY
Low-Voltage Class 2 (PELV) Wiring
OMX-DACPI
Drain/Shield
Data Link
Control Wiring
• Use low-voltage Class 2 (PELV) wiring to daisy-chain the
OMX-DACPI to Processor Panels.
• Make connections inside the wallbox or in a switch/junction
box with a maximum wire length of 8 feet (2.5m) from the link
to the OMX-DACPI.
• Two #12 AWG (2.5mm
2
) conductors for common (terminal 1)
and 32 V Direct Current (terminal 2) control wiring.
• One shielded, twisted pair #18 AWG (1.0mm
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.
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