Acuity Brands CM ADC Series Посібник - Сторінка 2

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LIGHT LEVEL SET-POINT

The sensor functions by comparing the amount of daylight available with a defined acceptable lighting level. This threshold, called the "set-point", is utilized in all daylight

harvesting lighting control decisions. The sensor can find 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 artificial 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 flashes.

DIGITAL SET-POINT CONTROL

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

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.

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: 800.535.2465 www.acuitybrands.com/sensorswitch

CM-ADC

DZ - DUAL ZONE

BLK - 120 V

PP20

ORN - 277 V

BALLAST

CM ADC

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