Installation Instructions
Santa Clara, CA 95050 © 2005 Watt Stopper/Legrand
HPCP8SS
Photocell Control Module for Lighting Integrator
Installation and Setup
The Photocell Control Module is a dataline device
for outdoor lighting control. The package includes a
controller that connects to a relay panel in a Lighting
Integrator system and an external Photocell Sensor.
The Photocell Controller compares the actual outdoor
light level with the set point selected by the user
for each of up to 8 channels, or lighting groups,
in a Lighting Integrator system. The Controller
interacts with either the HCLK8SS Network Clock
or the HBMS8SS BMS Interface Module, or the
AA-BASE Automation Appliance, one of which must
be present in the system. Set points for each channel
are programmed at the Clock, BMS Module, or
the AA-BASE. The Clock or BMS Module provides
scheduling, occupancy information and the smart
scenarios that tell the relay panels how to respond
to a “Dark” or “Not Dark” signal from the HPCU8SS
Photocell Controller.
FEATURES
Tracks “Dark/Not Dark” state for each of 8 channels
in the system
Real time LCD display of actual exterior light level
up to 200 footcandles
Choice of “Operate” or “Test” modes to simplify
setup
Automatic deadband and 5-minute time delay avoid
nuisance switching
Bi-color LED indicates “Dark/Not Dark” state for
each channel
Integrates automatically with Network Clock or BMS
Interface Module
Before proceeding, read the instructions on
the following pages. Please refer to the project
documentation in the Lighting Integrator Installation
Manual and the installation manual that came with
the Clock or BMS Module.
If you have any questions, call our Service Team at:
888-852-2778.
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Note: These installation instructions assume that at
least one Lighting Integrator lighting control panel is
already installed, and that a Network Clock (HCLK8SS),
Building Management System Interface Module
(HBMS8SS), or AA-BASE Automation Appliance is
already connected to the system.
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HPCP8SS Photocontrol Control Module — Installation and Setup
Figure 1 – HPSA Photocell Sensor Wiring
3-CONDUCTOR
20 AWG
1000 FT. MAX.
WEATHERTIGHT
JUNCTION BOX
0.5 INCH
THREADED
INLET
12 INCHES
ABOVE
SNOW LINE
HPSA
BASIC INSTALLATION STEPS
1 Install the HPSA Sensor on the roof
2 Connect the HCPU8SS Photocell
Control Module to the local dataline
3 Program the channels that will use
daylighting scenarios using the Clock,
BMS module, or AA-BASE
4 Confirm that the HPCU8SS has
received data
5 Test the operation of the system
INSTALL THE SENSOR
You can install the Photocell Sensor
before or after initial testing as described
on page 6).
Mount the HPSA Photocell Sensor on the
outside of a weathertight junction box
on the building roof, facing toward the
northern sky as illustrated in Figure 1.
Make sure the sensor lens is not subject
to shadows or directly aimed at a light
source. In areas subject to snow, the
sensor must be mounted 12 inches above
the snow line.
Connect the HPSA Photocell Sensor
to the relay panel where the HCPU8SS
Control Module will be mounted using
3-conductor 20 AWG wire.
INSTALL THE CONTROL
MODULE
Refer to the callouts shown to the right.
The HPCU8SS snaps onto the DIN rail in
any Lighting Integrator panel. (Release
clip on the bottom of the unit.)
Connect the wiring from the Photocell
Sensor to the photocell input terminals
labeled R/B/W. If using shielded cable,
which is not required, terminate the
shield at the terminal labeled S.
Plug the supplied cable into the dataline
connection at the bottom of the unit.
Then plug the cable into one of the Local
Dataline connectors in any panel.
The HCPU8SS Module will display the
Main screen as shown below:
Measured Light—
Level:=010(fc)
The eight channel LED indicators on the
face of the Module should all be off.
UP AND DOWN BUTTONS
(USED FOR TESTING)
TEST/OPERATE SWITCH
PHOTOCELL INPUT TERMINALS
DIN RAIL RELEASE CLIP
DATALINE CONNECTOR
SERVICE PIN AND LED
HPCU8SS Control Module Parts
CHANNEL A-H BUTTONS
AND LED INDICATORS
HPSA Dimensions
1.30 (33)
1.86
(47)
inches (millimeters)
0.5" THREAD
RED
BLACK
WHITE
SHIELD
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PROGRAM THE CHANNELS
Lighting groups with similar control
functions, such as exterior security
lighting, must be smartwired to the
appropriate channels (A-H) in the
system. Relays assigned to each channel
are documented on each panel’s Relay
Schedule form. Scenarios assigned
to each channel are documented on
either the Network Clock Automation
Scenarios form, or the BMS Interface
Automation Scenarios form. Sample
forms are shown below.
Note that only one Network clock or BMS
Interface Module may be connected to the
network at one time.
Determine which channels will use the
daylighting scenarios. Make sure the
appropriate relays in each panel are
smartwired to the correct channels.
See the Lighting Integrator Installation
manual section called “Smartwiring a
Relay Group to a Channel”.
Program each Channel using the
Network Clock or BMS Interface Module
as detailed on the following pages.
SMART SCENARIOS
With no Photocell Control Module in
the system, the Network Clock offers
four possible scenarios for operating
channels, or lighting groups — two for
interior lighting and two for exterior
lighting. The BMS Interface Module offers
two interior scenarios only:
Interior Lighting:
• Manual ON / Scheduled OFF
• Scheduled ON/OFF
Exterior Lighting:
• Astro ON/OFF
• Astro ON / Scheduled OFF
The Astro scenarios provide an
astronomical timeclock function — or an
approximation of the level of darkness
based on the site’s location — when
the Clock is programmed with location
information.
When a Photocell Control Module
is added to the system, the Clock
automatically detects its presence and
changes the exterior lighting scenarios
from Astro to “Dark.” The BMS Interface
also detects the presence of the Control
Module and adds the two daylighting
scenarios.
Available scenarios for both the Clock and
BMS Interface Module now read:
Interior Lighting:
• Manual ON / Scheduled OFF
• Scheduled ON/OFF
Exterior Lighting:
• Dark ON/OFF
• Dark ON / Scheduled OFF
HPCP8SS Photocontrol Control Module — Installation and Setup
4
CAUTION
Once programming complete, do not disconnect the
control module from the system.
PROGRAMMING DAYLIGHT SCENARIOS
USING THE NETWORK CLOCK
Both the HCLK8SS Network Clock and the HPCU8SS Photocell
Control Module must be connected to the network via the Local
Dataline connection in any of the panels. (For more detail on
how to program scenarios using the Network Clock, refer to
instructions Network Clock Installation and Setup).
Example 1: Channel A – Dark ON/OFF
A At the Clock’s main Channel Status screen, advance to
Program, if necessary, using the cursor keys (STWX) and
press SELECT (Figure 2).
B In the Channel scheduling screen (Figure 3), SELECT
Channel A, then advance to the next field and use the RAISE
or LOWER key to toggle through the available scenarios until
you reach Dark ON/OFF. Press SELECT. The screen shown
in Figure 4 will appear.
C The flashing cursor will prompt for a darkness level to be
set. Use the RAISE or LOWER key to increase or decrease
the footcandle level in increments of 2 fc up to 200 fc.
Recommended footcandle levels are: Security and
parking = 6 fc, signage = 40 fc.
D When the desired level is set, advance to SAVE and press
SELECT. The Clock will return to the main Channel Status
screen shown in Figure 2.
Example 2: Channel B – Dark ON/Sched OFF
A At the Clock’s main Channel Status screen, SELECT
Program, as shown above in step A and Figure 2.
B In the Channel scheduling screen as shown in Figure 3,
SELECT Channel B, then advance to the next field and use
the RAISE or LOWER key to toggle through the available
scenarios until you reach Dark ON / Sched OFF. Press
SELECT. The screen shown in Figure 5 will appear.
C Use the cursor keys (STWX) and select key to move from
field to field, and the raise or lower key to change values.
Choose the Day of the week and enter that day's Open
("Occupied") times. The example shown in Figure 5 is 6 a.m.
until 9 p.m.
D Advance to the next field and the flashing cursor will prompt
for a darkness level to be set. Use the RAISE or LOWER key
to increase or decrease the footcandle level in increments of
2 fc up to 200 fc.
E Setting the footcandle level to – – – means no level is
selected, so the scenario will not function. This option allows
you to clear out previous programming.
F When the desired level is set, advance to SAVE — or COPY
this schedule to another day(s) — then press SELECT. The
Clock will return to the main Channel Status screen.
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Figure 2 – Channel Status Screen
Figure 3 – Channel Scheduling Screen
Figure 4 – Dark ON/OFF Data Entry
Figure 5 – Channel Scheduling Screen
HPCP8SS Photocontrol Control Module — Installation and Setup
Channel
A
Man ON / Sched OFF
Day: Monday
ON: 00:00 OFF: 00:00
ON: 00:00 OFF: 00:00
Time Delay: 000 MIN.
Blink before off? YES
SAVE COPY ABORT
Channel
B
B
Dark ON / Sched OFF
Day: Monday
Open: 06:00 thru:21:00
Open: 00:00 thru:00:00
Dark =
less than
---fc
SAVE COPY ABORT
Channel A
Dark ON/OFF
Dark =
less than
20 fc
SAVE ABORT
Time = 09:35 03/08/00
Channel Status:
A = off B = off
C = off D = off
E = off F = off
G = off H = off
Program Setup
5
Status Contact:A
Closed = Any ON
Set the definition of the Status Contact
by choosing one of the four options below
and press NEXT.
• Any ON (when any relay[s] in any
Channel A in any panel are on, the
status contact will be closed)
• All ON (every relay in every Channel A
must be on for the status contact to be
closed)
• All OFF (every relay in every Channel A
must be off for the status contact to be
closed)
• Any OFF (when any relay[s] in any
Channel A in any panel are off, the
status contact will be closed)
Press NEXT again to SAVE programming
for Channel A, or use the UP or DOWN
key to toggle to CANCEL and start again.
Example 2: Channel B –
Dark ON / Sch OFF
Press and hold the channel button B on
the face of the BMS Interface Module.
Scenario for B
Dark ON /Sch OFF
The scenario line will be flashing as
before. Using the UP or DOWN key, toggle
through the scenario choices until Dark
ON / Sch OFF is displayed. Press NEXT.
PROGRAMMING DAYLIGHT
SCENARIOS USING THE BMS
INTERFACE MODULE
Both the HBMS8SS BMS Interface
Module and the HPCU8SS Photocell
Control Module must be connected to the
network via the local dataline connection
in any of the panels. (For more detail
on how to program scenarios using the
BMS Interface Module, refer to the BMS
Interface Module Installation manual.)
Example 1: Channel A –
Dark ON/OFF
Press and hold the channel button A on
the face of the BMS Interface Module.
Scenario for A
Dark ON
The scenario choice, in the second line,
will be flashing. Using the UP or DOWN
key, toggle through the scenario choices
until Dark ON is displayed. Press NEXT.
Dark=(2-200fc) A
008
The flashing second line will prompt for a
footcandle setting from 002 to 200 in
1 fc increments. Use the UP or DOWN key
to scroll through the numbers until the
desired footcandle level is reached (Hint:
Hold down the UP or DOWN key to scroll
continuously). Press NEXT.
Egress Time: B
060 Minutes
Using the UP or DOWN key, set the
Egress Time for Channel B for 000, 001,
or from 010-240 minutes in 10 minute
increments. In this example, the egress
delay is one hour, or 060 minutes. Press
NEXT.
Dark=(2-200fc) B
060 Minutes
As in the previous example, the flashing
second line will prompt for a footcandle
setting from 002 to 200 fc. Use the UP or
DOWN key to scroll through the numbers
until the desired footcandle level is
reached. Press NEXT.
Input Contact: B
Closed = Occupied
The Input Contact is defined as either
Open or Closed (dry contact, maintained)
to indicate that the lighting controlled
by this channel should be considered
Occupied. Toggle between these choices
using the UP or DOWN key. When the
correct option is flashing, press NEXT to
select and advance to the next screen.
Set the definition for the Status Contact
as in the previous example, choose SAVE
and press NEXT.
The values entered in the “Open … thru” fields would be:
Open: 00:00 thru 01:00
06:00 thru 00:00
00:00 1:00 AM 6:00 AM 00:00
MIDNIGHT MIDNIGHT
SUNDAY MONDAY
Time Spanning – Setting Occupied/Unoccupied Times
For Late Night Hours (also see the HCLK manual)
Example: A restaurant needs parking lot lighting to be
Unoccupied only from 1:00 a.m. to 6:00 a.m. Parking lot lighting
will turn off after 1:00 a.m. (and dark), then on again, if still
dark, at 6:00 a.m. when the channel goes Occupied, then off
again at daylight.
HPCP8SS Photocontrol Control Module — Installation and Setup
6
TEST SYSTEM OPERATION
Move the TEST/OPERATE switch on
the left side of the Control Module to
the TEST position. The screen will now
display a Simulated Light Level, rather
than actual light level.
Simulated Light
Level: = 009 fc
Using the UP or DOWN key, change
the Simulated Light Level to 000. The
channel LEDs for those channels you’ve
programmed for daylighting scenarios
(A and B in our example) will be lit red.
The LED color indicates how the actual
or simulated light level compares to the
channel’s programmed set point:
• Red = The actual (or simulated) light
level is less than the light level setting
for that channel. Therefore, the relay(s)
associated with that channel should
be on if the input contact indicates
Occupied.
• Green = The actual (or simulated) light
level is greater than the light level
setting for that channel. The relay(s)
associated with that channel should
be off if the input contact indicates
Occupied.
• Off = An unlit LED indicates there is no
light level set for that channel.
Check the time on the Network Clock,
or the occupancy status of the channel
input to the BMS Interface Module. If it
is not within an Occupied period, reset
the Clock or BMS Module input to an
Occupied time. For the Clock, use the
Setup screen (see the Network Clock
Installation Instructions).
Use the UP key on the Control Module
to raise the simulated light level. As the
light level passes the lowest footcandle
setting for a channel, that channel’s LED
will change from red to green, and that
channel’s relay(s) will turn off. Continue
to raise the light level until it exceeds all
channel set points, and all relays have
turned off.
Reverse the previous test, using the
DOWN key to decrease the simulated
light level. As the light level passes each
channel’s set point, that channel’s LED
should turn red, and relay(s) should turn
on.
CONFIRM THAT THE CONTROL
MODULE HAS RECEIVED DATA
Check the Control Module’s display
screen. It should register the Measured
Light Level outdoors. If it is daylight, the
screen will appear as shown:
Measured Light-
Level: = 200+(fc)
Pressing a channel button on the face
of the Control Module will display the
light level set for that channel, compared
to the measured light level outdoors.
Releasing the button returns the screen
to the standard Measured Light Level.
A set at 008(fc)
Level: = 200+(fc)
Repeat this check for all channels.
Channels not programmed with
daylighting scenarios will show – – – (fc).
H set at ---(fc)
Level: = 200+(fc)
When the simulated light level reaches
000 fc, all channels with daylighting
scenarios should be red.
Set the time on the Clock, or the input
to the BMS Interface Module to an
Unoccupied period and repeat the test
above. First increase the simulated light
level past all channel set points, then
decrease back to 000. Depending on the
channel’s scenario, the LEDs and relays
will respond differently:
Dark ON/OFF channels will reflect
the state of the LED on the Control
Module:
Red LED = light level is lower than
the set point – relays turn on
Green LED = light level is higher than
the set point – relays turn off.
Dark ON / Scheduled OFF channels
will leave relays off, even when the
channel LED changes state, because
the building is Unoccupied.
RESET TO OPERATE MODE
Reset the Network Clock to the correct
time, or make sure the inputs to the
BMS Interface Module’s channels are
connected and operational. Move the
Control Module’s TEST/OPERATE switch
back to OPERATE.
DEADBAND
In the OPERATE mode, the Control
Module uses a deadband of 6 footcandles
and a 5-minute time delay to avoid
nuisance switching. As light levels
increase, there is a deadband of 6 fc
above the actual set point before the
Control Module will signal “Dark.”
As light levels decrease, the actual light
level and set point are equal. In either
case, the actual measured light level
must remain at the trigger point for
5 continuous minutes before the Control
Module will send a “Dark” signal.
Example 1: A channel’s set point is 20 fc.
As light levels increase, the channel LED
will turn green (signaling “Not Dark”)
after five minutes at or above 26 fc.
As light levels decrease, the channel LED
will turn red (signalling “Dark”) after five
minutes at or below 20 fc.
Example 2: A channel’s set point is 10 fc.
The measured light level is at 14 fc.
No change will occur until the light level
rises to 16 fc and stays there for five
continuous minutes.
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HPCP8SS Photocontrol Control Module — Installation and Setup
7
TROUBLESHOOTING
I unplugged the Photocell Control
Module and now all my programming is
gone.
Do not disconnect the Photocell
Control Module from the system once
programming is complete. Disconnecting
the Control Module tells the Clock or
BMS Interface Module that the Photocell
is not present, so “Dark” scenarios can
no longer function. To avoid conflicts, the
Network Clock or BMS Interface Module
will not save the previously programmed
scenarios for those channels using Dark
ON or Dark ON / Scheduled OFF. If the
Control Module is disconnected and then
reconnected, programming for those
channels using daylighting scenarios
must be re-entered.
It is permissible to disconnect the
Network Clock (or BMS Interface Module)
from the system first, to use the Clock
as a Switch Programmer, for example.
The Clock or BMS Module will retain
the daylighting scenarios as long as the
Photocell Control Module is connected
to the system when the Clock/BMS is
plugged back into the Local Dataline.
I programmed a channel but the
Photocell Control Module doesn’t
display any light level set for it.
Check that the current day and time
set in the Clock is consistent with the
programmed days and times. Make sure
that the program is copied to every day
of the week where Dark ON / Scheduled
OFF is the desired scenario.
The channel is programmed and
the correct set point displays on the
Photocell Control Module, but nothing
happens when the actual light level goes
past the set point.
Confirm that the actual day and time
currently set in the Clock falls within
a time that is scheduled as Occupied.
If the scenario is Dark On / Scheduled
Off, and the Clock or BMS Module says
Unoccupied, then lighting should not
respond to a change in outdoor light
levels.
Also confirm that the actual light level
has been at least 6 footcandles above the
set point for five continuous minutes.
If not, the deadband and time delay
may be in effect (see Example 2 in the
previous section). To eliminate this
possibility, move the Photocell Control
Module’s TEST/OPERATE switch to TEST,
which will disable the deadband and time
delay, and check again.
HPCP8SS Photocontrol Control Module — Installation and Setup
Santa Clara, CA 95050 www.wattstopper.com 03778r1 12/05
Call 888.852.2778 for Technical Support
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