Acuity Brands CM ADC Series User manual

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/sensorswitch
© 2014-2019 Acuity Brands Lighting, Inc.All rights reserved. Rev. 01/21/19
CM ADC
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CM ADC
Automatic Dimming
Control Photocell Sensor
ORDERING INFORMATION
CM ADC Example: CM ADC LT
CM ADC
Series Dual Zone Visible Light Programming Temp/Humidity
CM ADC Automatic Dimming Control Sensor
- Ceiling Mount, Low Voltage
[blank] Single Zone
DZ Dual Zone
[blank] None
VLP1Visible Light
Programming
[blank] Standard
LT Low Temp/ High Humidity
Catalog Number: Date: Project:
OVERVIEW
The CM-ADC Series of Automatic Dimming Control sensors provide continuous control of
dimmable ballasts for daylight harvesting applications. Ideal for public spaces with windows like
vestibules, corridors, or bathrooms; the CM-ADC works by monitoring daylight conditions in a
room, then controlling a 0-10 VDC dimmable ballast so as to insure that adequate lighting levels
are maintained.To add full On/Off switching to the dimming control provided by the CM-ADC,
see the Technical Data Sheet on the CM-PC-ADC sensor. Additionally with the Dual Zone (-DZ)
option, a second customized controlled output is provided.All units are powered by 12 to 24
VAC/VDC. With optional ash programming via the Sensor Switch VLP mobile device application,
the user can easily change time delay, on mode and photocontrol settings.
FEATURES
• Automatically Dims/Brightens 0-10
• VDC ballasts as daylight changes
• Capable of nding optimum set-point
• Digital Set-Point Control
• Programmable via simple push-button commands
• Dimming sinks up to 20 mA
• Green LED Activity Indicator
• 100 Hr Lamp Burn-in Timer Mode
Warranty
Five-year limited warranty. Complete warranty terms located at:
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
Note: Actual performance may differ as a result of end-user environment and application.
Specications subject to change without notice
Notes
1. Not available with DZ option
C
US LISTED

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/sensorswitch
© 2014-2019 Acuity Brands Lighting, Inc.All rights reserved. Rev. 01/21/19
CM ADC
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WIRING INSTRUCTIONS
Wire lead connections are Class II, 18 to 22 AWG.
STANDARD CM-ADC
RED - 12 to 24 VAC/VDC
BLACK - Common
VIOLET/WHITE striped - Connect to Violet wire from Zone 1’s
0-10 VDC dimmable ballast.Also connect ballast Gray wire to
sensor Black wire.
DUAL ZONE OPTION (-DZ)
Connect the additional solid VIOLET wire to Zone 2’s 0-10 VDC
dimmable ballast. Also connect Zone 2 ballast Gray wire to
sensor Black wire.
The sensor functions by comparing the amount of daylight available with a dened acceptable lighting level. This threshold, called the “set-point”, is utilized in all daylight
harvesting lighting control decisions. The sensor can nd its optimum setpoint via the Automatic Set-Point Programming mode. In this mode, the sensor takes light readings
at different dim settings and then sets the minimum light level to be the amount contributed by the articial lights being controlled. It is assumed that the space is properly
lit by design, however, if this is not the case the set-point may be easily adjusted to the occupant’s preference. All modes and settings are entered digitally via a push button
sequence. Once programmed, the exact value of the set-point (in foot candles) can be read out from the sensor via a series of LED ashes.
Each sensor contains a microcontroller that enables the user to engage the Automatic Set-Point Programming mode or to manually set / adjust the set-point. The manual
process involves calculating and inputting the exact foot-candle value of the desired set-point into the sensor. It is important to note that the set-point is the light level
required at the face of the sensor and that this value will be much different than the level required at a work surface.Typically, light levels at the ceiling are 3 to 5 times less
than the work surface. For example, if 50 fc is desired at the work surface, the sensor should be set at 10 fc. For best results, measure the levels at both locations using a foot-
candle meter before programming the set-point.
WIRING
LIGHT LEVEL SET-POINT
DIGITAL SET-POINT CONTROL
BLK - 120 V
ORN - 277 V
PP20
CM-ADC
BALLAST
DZ - DUAL ZONE

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/sensorswitch
© 2014-2019 Acuity Brands Lighting, Inc.All rights reserved. Rev. 01/21/19
CM ADC
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SPECIFICATIONS
Electrical Input Ratings Class 2 Input 24V max, 4mA
Class 2 Input 24V max, 16mA (-R Option)
Relay Type Electrically held
Low Voltage Output Ratings 0-10VDC, Sinks <20mA
Standards/ Ratings Energy Management Equipment, UL916 (E167435)
Mechanical Dimensions 4.55”W x 1.55”D (116mm x 40mm)
Mounting Single-Gang or Octagonal Box, Surface Mount
Color White
Finish Matte
Connection Type Low Voltage Leads
Environmental Warrantied Operating Temperature Standard: 14°F to 185°F (-10°C to 85°C)
LT option: -4°F to 185°F (-20°C to 85°C)
Relative Humidity Up to 90%, Non-Condensing
Environment Indoor
Standards/ Ratings RoHS