Cooper Lighting Analog Photosensor Installation guide

Brand: Cooper Lighting

Model: Analog Photosensor

Type: Installation guide

INS #

Installation Instructions

Model # PC-I, PC-O,

Model # PC-S, PC-A,

Model # PC-IS

Analog Photosensor 0-10 VDC

Photodétecteur analogique 0-10 Vc.c.

Fotosensor analógico de 0-10 VCC

General Information

The 0-10V analog photosensors are used in conjunction

with a Greengate controller that supports 0-10V analog

inputs. The photosensors provide a varying voltage to the

control panel dependent upon the light level seen by the

photosensor. The voltage returned is translated by the

controller into values which in turn may be programmed

to perform functions based on these values.

The analog photosensors are currently available in the

following models:

Catalog Number Description

PC-I Indoor Photosensor

PC-O Outdoor Photosensor

PC-S Skylight Photosensor

PC-A Atrium Photosensor

PC-IS Photosensor Daylighting Shield

The analog photosensors connect to the control panel’s

low voltage analog input channels. The lighting circuits

that are controlled by the photosensors as well as the

control strategies are determined by the programming

within the control panel. Refer to the individual control

panel’s programming manual for information on

programming.

Getting Started

1. Do not discard these installation instructions. Please

keep for future reference and operation information.

2. It is recommended that all low voltage wiring be

done with power removed to the logic board to

protect components from potential shorts during the

wiring process.

3. Do not route low voltage wires with or near power

wiring. Bring analog wiring in through the low voltage

section of the lighting controller.

4. Use only as intended and at the listed voltage.

5. All installation and service must be performed by

qualified personnel or service technicians.

6. Install in accordance with the National Electrical Code

and any other codes which may apply.

7. Installation and wiring information contained in this

document is based on industry accepted standards

and practices. If conflicts exist between these

instructions and any applicable codes or ordinances,

please contact Greengate before proceeding with the

installation.

8. High voltage is present inside the enclosure. Use

extreme caution when performing maintenance on

this equipment.

9. Document all wiring and device terminations and

locations so that devices can be properly configured

and programmed for operation.

Indoor

Photosensor

Outdoor

Photosensor

Atrium/Skylight

Photosensor

Mounting

Analog Photosensor 0-10 VDC

Mounting

The location of the photosensor is integral to the proper

operation of your lighting system. Please follow the

mounting guidelines outlined in this document for your

photosensor type.

PC-I: Indoor Photosensor Mounting

Mount the sensor in a 3/8” hole in the false ceiling tile

fixing it in place with the adhesive backing.

For daylight dimming applications with a CK4A, the

photocell should be located so that it views indirect light

from its controlled zone.

For daylight harvesting ON/OFF applications, the photocell

should be located between 6 and 8 feet of the window

area and be centrally located in the area illuminated by the

electrical lighting that it will be controlling.

In both applications, the sensor must be mounted so that

it looks at reflected light only and not at any direct light

source. Locate the sensor within 500 feet of the control

panel.

PC-O: Outdoor Photosensor Mounting

Locate the sensor on a roof or where it will be exposed

to full daylight. Do not locate the sensor in a shaded

location. The sensor should not be located where it will be

exposed to any nighttime illuminations or reflections from

metal surfaces or windows. The sensor must be mounted

horizontally facing north, with the hooded portion on top.

Mount the sensor in a standard threaded ½” conduit or ½”

knockout.

Locate the sensor within 500 feet of the control panel.

PC-A: Atrium Photosensor Mounting

Locate the sensor as close to the atrium window as

possible and as far away from the wall as possible. Mount

the sensor vertically with the domed portion facing up.

Mount the sensor in a standard threaded ½” conduit or ½”

knockout.

Locate the sensor within 500 feet of the control panel.

ZONE 2ZONE 1

Field of View

Locate Sensor 6-8 feet

from Window

North

Snow Line

Outdoor Sensor

Mounted in 1/2”Conduit

Outdoor Sensor Mounted Horizontally

on Roof or Equal, Facing Northern Sky.

Hooded Portion on Top, Facing Away

from any Nighttime Light Sources.

Outdoor Photosensor Placement

Window

Field of View

Light Fixture

Light Fixture Light Fixture Light Fixture

Locate sensor within its controlled zone so that it “sees”reflected light only.

ZONE 3

(Non-Dimmed)

Atrium Glass

Atrium Sensor in 1/2” Conduit

Ideal Sensor Location is in the

Middle of the Atrium Glass

Facing Up.

Atrium Photosensor Placement

Wiring the Photosensor to the Controller

Analog Photosensor 0-10 VDC

PC-S: Skylight Photosensor Mounting

Locate the sensor indoors as near to the center of the

skylight well as possible or at least 12 inches from the side.

The sensor should be exposed to full daylight and not be

put in a location that may be shadowed. The sensor must

be mounted vertically, with the dome pointing upwards.

Mount the sensor in a standard threaded ½” conduit or ½”

knockout.

Locate the sensor within 500 feet of the control panel.

Wiring the Photosensor to the Controller

The analog sensor wiring should not be routed near power

wiring. It must be brought into the low voltage section

of the lighting controller. Total wire run length should not

exceed 500 feet.

Wire the analog photosensor to the analog input channels

provided on the board. Refer to the wiring diagrams below

or installation instructions for your panel type for location

of these input channels. Wire should be 18 AWG stranded,

3-conductor, twisted, Class II wiring.

1. Connect the RED wire to the +24 VDC terminal of

any switch channel or to the +24 VDC terminal of the

peripheral power connector.

2. Connect the YELLOW wire to one of the ANALOG IN

terminals (labeled AN1, AN2, AN3, AN4).

3. Connect the BLACK wire to the ANALOG COM

terminal that corresponds to the ANALOG IN terminal

being used.

Wiring

Photosensor Programming Ranges

After the photosensor has been successfully installed,

the next step is to set up the programming in the lighting

controller. It will be necessary to enter an upper and lower

endpoint as well as an upper and lower voltage.

Unless an extended range photosensor has been provided,

the endpoints and voltages have been previously calibrated

from the manufacturer for the following settings:

Skylight Sensor in 1/2” condult.

Sensor must be at least 12”

from side of skylight and

facing up

RED +24V Wire from Photocell

may be brought to the +24V

Channel here instead of a

Switch Channel if Desired.

Yellow (Signal) - (Analog

1-4 Channel)

Yellow (Signal) - (Analog

1-4 Channel)

Black (Ground)

(Analog COM)

Black (Ground)

(Analog COM)

RED +24V

(CH +24V)

RED +24V

(CH +24V)

Shown at

CH17 location

Local Remote

Jumpers in

Local Position

Analog Photosensor Wired to a ControlKeeper

-T

Analog Photosensor Wired to a ControlKeeper

-4A

Skylight Photosensor Placement

Photosensor Daylighting Shield (Option)

Analog Photosensor 0-10 VDC

Photosensor

Type

Lower

Endpoint

Upper

Endpoint

Lower

Voltage

Upper

Voltage

PC-I (In-door) 0 fc. 100 fc. 1 Volt 10 Volt

PC-O (Outdoor) 0 fc. 250 fc. 1 Volt 10 Volt

PC-A (Atrium) 2 fc. 1000 fc. 1 Volt 10 Volt

PC-S (Skylight) 10 fc. 2000 fc. 1 Volt 10 Volt

Photosensor Ranges and Voltages

Please program in the above ranges for proper function of

the lighting control system. Once the ranges have been

entered, it will be possible to start logging the

photosensor’s readings in order to determine the proper

switching thresholds for the space. Please refer to your

programming manual for further information regarding

programming in the photosensor thresholds.

Photosensor Daylighting Shield (Option)

The PC-IS is a daylighting shield that can be attached to the

indoor photosensor when the space is over lit. Occasionally

a photosensor may become overwhelmed with daylight due

to large windows or placement too close to a light source.

The PC-IS is attached to the indoor photosensor using the

double sided tape included with the PC-IS. The PC-IS should

be attached to the indoor photosensor on the side between

the photosensor lens and the window.

Double Sided Tape

Attach to Cone of

Photosensor.

Shield

Facing

Window

Field of View

When the Sensor is Installed

Less Than 6-8 Feet from

the Window, Install the

PC-IS. This will Shield

Uplight from the Window or

Blinds Overwhelming the

Photosensor

Window

Light Fixture

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Cooper Lighting Analog Photosensor Installation guide

Brand: Cooper Lighting

Model: Analog Photosensor

Type: Installation guide

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