INSTALLATION SHEET
Indoor Contact Input Photosensor
Model# PPS-4
General Information
The Indoor Contact Input Photosensor (PPS-4) can be used
with any Greengate lighting controller and may also be used
in conjunction with Greengate Switchpacks and BAS version
motion sensors for daylight harvesting.
The operating range of the photosensor is 1 to 1400 footcandles. It should be placed indoors only and works optimally
within the temperature range of 50º to 104º F.
The photosensor is powered directly from the Greengate
Lighting Controller 24VDC peripheral power terminal or from
a Greengate Switchpack.
The photosensor has an automatic deadband feature. From
the user selected ON threshold which can be set at points between 1-850FC, the photosensor allows a 25%, 50%, 75% or
100% deadband. In addition to the deadband, the photosensor
allows an OFF time delay to prevent nuisance cycling.
The photosensor has been provided with a threaded mounting post
and washer and lock nut to allow connection through a ceiling tile.
The mounting post may be removed by squeezing it near the
base of the PPS-4. This allows it to be mounted using the two
screw holes under the cover. Use two #6 pan head screws that
are appropriately length for the mounting location. This type
of mounting may be used for sheetrock locations.
Window Application
When used in a window application, the PPS-4 should be located
within 12 feet of the window and away from any direct light from
controlled fixtures. Ideally, locating the photosensor between the
window and first row of fixtures is recommended. Rotate the PPS-4
so that the light sensor is nearest the window.
Getting Started
1.
2.
3.
4.
5.
6.
7.
8.
Do not discard these installation instructions. Please
keep for future reference and operation information.
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.
Use only as intended and at the listed voltage.
All installation and service must be performed by
qualified personnel or service technicians.
Install in accordance with the National Electrical Code
and any other codes which may apply.
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.
High voltage is present inside the lighting enclosure.
Use extreme caution when performing maintenance on
this equipment.
Document all wiring and device terminations and
locations so that devices can be properly configured
and programmed for operation.
Skylight Application
There are two options for mounting a sensor that will be looking
at contributed light from a skylight. It is important that the sensor
be mounted such that it is not looking at direct sunlight as this will
cause the sensor to exceed the maximum of its range. To prevent
this, locate the sensor either on the South wall of the skylight well
looking North (sensor should be rotated so that the sensor’s eye
is at the top) or mount on the ceiling next to the skylight looking
down at the floor (sensor should be rotated so that the sensor’s
eye is closest to the skylight well).
Mounting Detail
When performing daylight harvesting, choice of the mounting location for the photosensor is the key to success. It is
important to choose a location that is representative of the
day-lighting in the area being controlled. Shadows should
also be taken into account as they will affect the day-lighting
application.
Cooper Controls
203 Cooper Circle, Peachtree, GA 30269
800-553-3879
www.coopercontrol.com
Wiring Detail
All low-voltage wiring is Class 2 wiring. All low-voltage wiring must
be run in separate conduit from line-voltage wiring. Failure to separate high-voltage from low-voltage wiring may cause interference
with lighting controller or motion sensor function. Low-voltage wiring must enter the Greengate lighting controller enclosure through
the low-voltage section of the enclosure.
Cabling should be 18 AWG twisted, three-conductor, unshielded
cable. Maximum length for dry contact closure device wiring is
1000 feet.
Wiring the PPS-4 to a Lighting Controller
The PPS-4 photosensor wires to the low-voltage switch input
channels on the lighting controller’s logic board.
1.
2.
3.
Connect the Blue wire to the ON of the input channel.
Connect the Red wire to the +24VDC of the input channel.
Connect the Black wire to the Ground (GND) connection
on the peripheral power terminal.
Figure-3: LiteKeeper 4 Connection
Figure-1: LiteKeeper 16/32 Connection
Figure-4: ControlKeeper T Connection
Figure-2: LiteKeeper 8 Connection
Page 2
Figure-5: ControlKeeper 4 Connection
Wiring the PPS-4 to a Greengate BAS Sensor
Alternatively, the PPS-4 photosensor may wire directly to a Greengate Switchpack and BAS sensor to provide daylight harvesting
capability in a motion sensor application. In this configuration, the
BAS contacts are used for the photosensor wiring. When the photosensor sees enough light, the lighting will turn off and remain off
regardless of motion sensor activity. When the light level is lower,
the photosensor will revert lighting back to motion control.
Figure-6: ControlKeeper 4A Connection
Adjusting the PPS-4
The PPS-4 has an onboard
LCD display to allow for easy
user adjustment. The display will power down after a
10 minute period of inactivity.
To activate the screen again,
press either the Menu or
Select button and the display
will illuminate.
Figure-7: ControlKeeper 2 Connection
The Menu button will allow you to cycle through the main menu
items. The Select button is used to view options within the
menus, select options and save changes.
Wiring the PPS-4 to a Greengate Switchpack
The PPS-4 photosensor may alternatively wire directly to a Greengate Switchpack and optional wall switch. In this configuration, the
wall switch must be a two-wire momentary switch. The wall switch
may be used to override the photosensor’s OFF - command for 1
hour before the sensor reverts to normal operation.
There are three main settings that will need adjustment for
the photosensor to operate properly. These include the ON
threshold, the OFF threshold and the Time Delay setting. When
the light level drops below the ON threshold for 20 seconds,
the photosensor issues an ON command. When the light
level goes above the OFF threshold, the sensor will wait for
the period of time defined in the Time Delay settings and then
turn off the lights if the light level is still above threshold.
Page 3
Step 1: Verify Control – Overriding the Sensor
If the PPS-4 is wired to a lighting control panel, it is recommended
that the sensor be programmed into the lighting controller prior
to proceeding with these steps to allow for test of functionality.
Remember to program the sensor as a maintained contact.
1.
2.
3.
4.
5.
Pop the cover off of the photosensor to expose the Menu
and Select buttons and display.
If the display is not illuminated, press the menu button.
The display will illuminate.
Press the menu button until the CTRL screen is displayed. Press the Select button to toggle the override between ON
and OFF. The display will update with the overridden status.
Verify that the lighting responds.
The override will remain active until the menu button is used
to cycle back through the menu options or will time out
automatically in 10 minutes.
Step 2: Setting the ON Threshold
It is best to set the PPS-4 switching thresholds when the space
is at the light level that the lights should turn ON. The default
setting is 7.5FC.
1.
2.
3.
4.
5.
6.
7.
8.
Make certain that the lighting is at the level in the space
where you want the lighting to turn on.
Press the menu button until the display is at the CTRL
menu.
Press the Select button until the display reads OFF and
the lights are OFF.
Press and hold the select button for 2 seconds until MEM
appears at the top of the sensor’s display.
Press the Menu button until the FC Reading Menu is
displayed. Make certain when reading this display that
you are not blocking the light source from reaching the
sensor. Make note of the current light level. This value
will be the desired FC target value for the ON threshold.
Press the menu button until the ON Threshold Menu is
displayed (ON XX).
Press the Select button until the closest FC value to the
noted reading is displayed.
When the desired FC threshold is displayed, press and
hold down the select button for about 2 seconds until
MEM appears at the top of the sensor’s display.
you are not blocking the light source from reaching the
sensor. Make note of the current light level.
6. Press the menu button until the display is at the CTRL
menu.
7. Press the Select button until the display reads CTRL OFF
and the lights are OFF.
8. Press and hold the select button for 2 seconds until MEM
appears at the top of the sensor’s display.
9. Press the Menu button until the FC Reading Menu is
displayed. Make certain when reading this display that
you are not blocking the light source from reaching the
sensor. Make note of the current light level.
10.Take the initial reading with the lights on and subtract the
figure from the reading with the lights off. This is the
minimum deadband in FC that needs to be maintained
to prevent the lights from cycling.
11.Press the Menu button until the ON Threshold Menu is
displayed (ON XX).
12.Press the Select button to cycle through the available
OFF thresholds and select the appropriate setting.
13.Press and hold down the Select button for approx.
2 seconds until MEM appears at the top of the sensor’s
display window.
ON Value
OFF Deadband Value
FC
25%
50%
75%
100%
1.0
1.2
1.5
1.7
2.0
1.2
1.5
1.8
2.1
2.4
1.5
1.8
2.2
2.5
3.0
1.8
2.2
2.7
3.1
3.6
2.2
2.7
3.3
3.8
4.4
2.7
3.3
4.0
4.6
5.4
3.3
4.1
4.9
5.7
6.6
4.0
5.0
6.0
7.0
8.0
5.0
6.2
7.5
8.7
10
6.0
7.5
9.0
11
12
7.5
9.3
11
13
15
9.0
11
14
16
18
11
14
17
19
22
13
16
20
23
26
16
20
24
28
32
20
25
30
35
40
Step 3: Setting the OFF Threshold
25
31
38
44
50
The PPS-4 will calculate a 25%, 50%, 75% and 100% deadband
value for the OFF based on the ON threshold being used. The
default setting is 50% deadband. It is important to have adequate
separation between the ON and OFF thresholds to prevent cycling
due to thresholds being crossed when lighting is switched on and
off. To prevent this from occurring:
30
38
45
53
60
35
44
53
61
70
45
56
68
79
90
60
75
90
105
120
1.
2.
3.
4.
5.
Page 4
Set up the ON threshold.
Press the menu button until the display is at the CTRL
menu.
Press the Select button until the display reads CTRL ON
and the lights are ON.
Press and hold the select button for 2 seconds until MEM
appears at the top of the sensor’s display.
Press the Menu button until the FC Reading Menu is
displayed. Make certain when reading this display that 90
113
135
158
180
125
156
188
219
250
180
225
270
315
360
250
313
375
438
500
325
406
488
569
650
400
500
600
700
800
475
594
713
NA
NA
550
688
825
NA
NA
625
781
938
NA
NA
700
875
1050
NA
NA
775
969
1163
NA
NA
850
1063
1275
NA
NA
Step 3 Setting the Time Delay
Resetting the Sensor
The time delay setting determines how long the light level must
be above the OFF threshold before the lighting turns OFF. The
default setting is 10 minutes. To change this setting:
It is possible to reset the sensor to factory defaults. Press and
hold both the Menu and the Setup buttons at the same time. The
display will default to the main screen and factory defaults will be
restored.
1.
2.
3.
Press the menu button until the display shows the Time Delay
Menu (TIME #M). This is the current time delay setting.
Press the Select button until the desired choice is shown.
Choices include 3 minutes, 10 minutes, 20 minutes and
30 minutes.
When the desired number of minutes is displayed, press
and hold down the select button for about 2 seconds until
MEM appears at the top of the sensor’s display.
Additional PPS-4 Information
Additional functions of the photosensor are not used in the Greengate application.
LED Functions
LED Status
OFF
The lights are commanded
ON by the PPS-4
ON – solid Green
The lights are commanded
OFF by the PPS-4
Green – flashing rapidly
(once per second)
The PPS-4 is in test mode
Testing the Sensor
It is possible to place the sensor in test mode. In this mode, the
sensor will immediately switch lighting on or off upon the cross
of the on or off thresholds. If a sensor is left in test mode, it will
automatically revert to normal operation after 30 minutes.
1.
2.
3.
4.
Press the menu button until the display reads SETUP.
Press the select button once. The display will read TEST.
Press the select button again. The display will read TEST
ON and the sensor LED will flash. The sensor is now in
test mode.
Once test is complete, process steps 1-3 again to turn off
test mode.
Description
Green – flashing
slowly (once every
four seconds)
It is also possible to test the sensor for functionality by overriding the
sensor on and off. Refer to the Step 1: Verify Control – Overriding
the Sensor section for details on overriding the sensor.
The PPS-4 is being overridden either by the CTRL
override menu or by an
external two wire momentary wall switch.
All products manufactured by Cooper Controls and identified with the Greengate brand are warranted to be free from defects in material and workmanship and
shall conform to and perform in accordance with Seller’s written specifications for a period of :
• Five (5) years from date of shipment for all occupancy sensors.
• Three (3) years from date of factory invoice for our hardware and software on Lighting Control Panels.
• We warranty all our standard relays for a period of 10 years from date of factory invoice. We guarantee the performance of our system to specifications of your
money back.
This warranty will be limited to the repair or replacement, at Seller’s discretion, of any such goods found to be defective, upon their authorized return to Seller. This
limited warranty does not apply if the goods have been damaged by accident, abuse, misuse, modification or misapplication, by damage during shipment or by
improper service. There are no warranties, which extend beyond the hereinabove-limited warranty, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY
OF MERCHANTABILITY AND THE IMPLIED WARRANTY OF FITNESS.
No employee, agent, dealer, or other person is authorized to give any warranties on behalf of the Seller or to assume for the Seller any other liability in connection
with any of its goods except in writing and signed by the Seller.
The Seller makes no representation that the goods comply with any present or future federal, state or local regulation or ordinance. Compliance is the Buyer’s responsibility. The use of the Seller’s goods should be in accordance with the provision of the National Electrical Code, UL and/or other industry or military standards
that are pertinent to the particular end use. Installation or use not in accordance with these codes and standards could be hazardous.
Cooper Controls
203 Cooper Circle, Peachtree, GA 30269
800-553-3879
www.coopercontrol.com
P/N 05-014682-00