HPCP8SS (HPCU8SS and HPSA)
Smartwired
™
Photocell Control Module
Installation and Setup
The HPCU8SS Photocell Control Module is a
dataline device for outdoor lighting control.
It must be used in conjunction with the HPSA
Photocell Sensor, and connects to any relay
panel in a Smartwired Switching System. The
HPCP8SS is a package combining both the
controller and the sensor.
The HPCU8SS 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 Smartwired Switching
System. The Controller interacts with either the
HCLK8SS Network Clock or the HBMS8SS BMS
Interface Module, one of which must be present
in the system. Set points for each channel are
programmed at the Clock or BMS Module. 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 SMARTWIRED
SWITCHING SYSTEM INSTALLATION AND
OPERATION MANUAL that came with the
Clock or BMS Module. If you have questions,
call our Service Team at: 888-852-2778.
These installation instructions assume that at
least one Smartwired Lighting Control Panel
is already installed, and that a Network Clock
(HCLK8SS) or Building Management System
Interface Module (HBMS8SS) is already
connected to the system.
Installation Instructions
Santa Clara, CA 95050 © 2001 The Watt Stopper,
®
Inc.
2
HPCP8SS Photocell 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
HPSA Dimensions
1.30 (33)
1.86
(47)
inches (millimeters)
0.5" THREAD
Measured Light–
Level: = 010(fc)
Basic Installation Steps
1 Install the HPSA Sensor on the roof
2 Connect the HCPU8SS Photocell
Control Module to the dataline
3 Program the channels that will use
daylighting scenarios using the Clock
or BMS module
4 Confirm that the HPCU8SS has received
data
5 Test the operation of the system
Install The Photocell Sensor
(You can install the Photocell Sensor last,
but wire it to the HCPU8SS Module for
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.
Wire back 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 Smartwired relay panel. (There is a
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:
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
RED
BLACK
WHITE
SHIELD
CHANNEL A-H BUTTONS
AND LED INDICATORS
3
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 (HID-SSREL). Scenarios
assigned to each channel are documented
on either the Network Clock Automation
Scenarios form (HID-SSCLK), or the
BMS Interface Automation Scenarios
form (HID-SSBMS). 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
Smartwired Switching System Interior
Installation and Setup, (document
INHINSS) page 3, “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 the two
interior scenarios only.
The scenarios are:
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 Photocell Control Module — Installation and Setup
4
HPCP8SS Photocell Control Module — Installation and Setup
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 – Scheduling Mode Installation
and Setup, (document INHCLK-S).
Clock 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 ( )
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 footcande 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.
Clock Example 2: Channel B – Dark ON / Scheduled 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 ( ) 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.
Figure 2 – Channel Status Screen
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
Figure 3 – Channel Scheduling Screen
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
Figure 4 – Dark ON/OFF Data Entry
Figure 5 – Channel Scheduling Screen
ONCE PROGRAMMING IS COMPLETE,
DO NOT DISCONNECT THE CONTROL MODULE
FROM THE SYSTEM
Channel 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
5
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.
BMS Module Example 2:
Channel B – Dark ON / Scheduled OFF
Press and hold the channel button B on
the face of the BMS Interface Module.
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.
Using the UP or DOWN key, set the
Egress Delay time for Channel D 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.
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 instructions Smartwired
™
BMS
Interface Module Installation and
Setup (document INHBMS).
BMS Interface Module Example 1:
Channel A – Dark ON/OFF
Press and hold the channel button A on
the face of the BMS Interface Module.
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:.
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:
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 num-
bers until the desired footcandle level is
reached. Press NEXT.
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.
Input Contact: B
Closed
Closed
=Occupied
Egress Time: B
060
060 Minutes
Scenario for B
Dark O
Dark O
N/
N/
Sch OF
Sch OF
F
F
Dark=(2-200fc) B
020
020
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
Status Contact:A
Closed =
Any ON
Any ON
Scenario for A
Dark ON
Dark ON
Dark=(2-200fc) A
008
008
Time Spanning – Setting Occupied/Unoccupied Times
For Late Night Hours (also see page 13 of INHCLK-S)
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 Photocell Control Module — Installation and Setup
6
Test The 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.
• 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
– Scheduling Mode Installation and
Setup instructions, page 6).
• 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.
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:
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.
Repeat this check for all channels. Channels
not programmed with daylighting scenarios
will show – – – (fc):
Simulated Light
Level: = 009 fc
Measured Light–
Level: = 200+(fc)
A set at 008(fc)
Level: = 200+(fc)
H set at ---(fc)
Level: = 200+(fc)
• 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. 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.
HPCP8SS Photocell Control Module — Installation and Setup
7
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.
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 Photo-
cell Control Module doesn’t display any
light level set for it.
Check that the current time and day set
in the Clock is consistent with the
programmed times and days. 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 Unoccu-
pied, 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.
If you have any questions, call The Watt
Stopper
®
Service at: 888-852-2778.
HPCP8SS Photocell Control Module — Installation and Setup
INHPCP8 020701Panel Division 888-852-2778
/