LEGRAND WattStopper UW-100 User manual

Installation Instructions
Specifications
Voltages:
UW-100 & UW-200 .................120/277VAC, 50/60Hz
UW-100-347...........................347VAC, 50/60Hz
Load Limits for each relay:
@120VAC.............0-800W tungsten or ballast, 1/6 HP
@277VAC.............................0-1200W ballast
@347VAC.............................0-1500W ballast
Load Type Compatibility:
Incandescent, fluorescent, magnetic or electronic ballast
Horsepower Rating (each relay) .........1/6 HP @120VAC
Time Delay Adjustment ....................5 to 30 minutes
Walk-Through Mode ...3 minutes if no activity after 30 sec.
Test Mode.......5 sec. for 10 min. with DIP switch setting
Ultrasonic Adjustment ...Minimum to Maximum (trimpot), Off
Frequency ....................................40kHz
Light Level Adjustment ...................... 8fc to 180+fc
Alerts ......................Selectable Audible & Visible
US Patents: 5640113
6617560
UW-100/UW-100-347/UW-200
v3
Ultrasonic Wall Switch
Occupancy Sensor
UW-100 & UW-100-347 UW-200
Santa Clara, CA 95050
800.879.8585

Auto ON
DIP 7 OFF for
Relay 1
DIP 8** OFF
for Relay 2
Manual ON
DIP 7 ON
for Relay 1
DIP 8** ON
for Relay 2
UNIT DESCRIPTION AND OPERATION
The UW Ultrasonic Wall Switch sensors employ 40kHz ultrasonic technology
in a single-gang wall switch unit. The UW sensor can turn a load ON, and hold
it ON as long as the sensor detects occupancy. After no movement is detected
for the selected time delay, the lights switch OFF. A “walk-through” mode can
turn lights OFF after only 3 minutes, if no activity is detected after 30 seconds
following an occupancy detection.
The UW-100 has one relay and one ON/OFF button. The UW-200 contains
two relays and two ON/OFF buttons to allow control of one or two loads
independently. Pressing a button toggles the state of the corresponding relay.
UW sensors contain a light level sensor. If adequate daylight is present, the
sensor holds the load OFF until light levels drop, even if the area is occupied. In
the UW-200, light level only affects the load on Relay 2. Users can overrule this
function by pressing the ON/OFF button. See Light Level Adjustment.
Turning The Load ON (ON Mode)
The relays are programmed independently for either Auto ON or Manual ON. In
either mode, the load can be turned ON or OFF using the ON/OFF button.
With an ON Mode DIP switch in the ON position, the occupant
must press the ON/OFF button to turn ON the load. The sensor
keeps the load ON until no motion is detected for the selected
time delay. There is a 30 second re-retrigger delay. If occupancy
is detected during the delay, the sensor turns the load back ON.
After the re-trigger delay elapses the ON/OFF button must be
pressed to turn ON the load.
** UW-100: Switch 8 is not used. UW-200: Switch 8 default is ON to comply
with CA Energy Commission Title 24 bi-level switching requirements.
Model # Relay Default ON Mode DIP switch # Setting
UW-100 1 Manual ON 7 ON
UW-100-347 1 Manual ON 7 ON
UW-200 1 Auto ON 7 OFF
2 Manual ON 8 ON
With an ON Mode DIP switch in the OFF position, the load turns
ON and OFF automatically based on occupancy. If the load is
turned OFF manually, Presentation Mode operation applies. This
prevents the load from turning ON automatically after it was
deliberately turned OFF. Pressing the button to turn lights ON
returns the sensor to Auto ON mode.
Shading indicates default operation and switch setting.

Walk-Through
Mode
(DIP #4 ON)
The UW sensor turns the load OFF 3 minutes after the
area is initially occupied, if no motion is detected after
the first 30 seconds. If motion continues beyond the
first 30 seconds, the set time delay applies.
Fixed Time Delay
(DIP 1&2 OFF, 3 ON)
Time delays are 5, 10, 15, 20 (default), 25, or 30
minutes.
Test/20 min
(DIP 1, 2, 3, OFF)
A Test Mode with a short time delay of 5 seconds is
set when DIP switches 1, 2, & 3 are OFF. It cancels
automatically after ten minutes, or when you set a
fixed time delay. When the Test Mode times out, the
sensor assumes a 20 minute time delay. To restart
Test Mode, change the time delay setting to any fixed
amount and then return it to the Test setting.
Walk-Through
The Walk-Through mode shortens the time delay to reduce the amount of time
the load is ON after a brief moment of occupancy, such as returning to an office
to pick up a forgotten item then immediately exiting.
No Walk-Through
(DIP #4 OFF)
Walk-Through mode disabled.
Presentation Mode is a feature of the Auto ON mode.When both relays are
manually turned OFF the UW holds the lights OFF until no motion has been
detected for the duration of the Time Delay. With subsequent occupancy, the UW
turns the load ON. If both relays are ON and one relay is manually turned OFF
this relay remains OFF until both the Time Delay and retrigger delay expires for
the relay that is ON, after that time the ON Mode control settings again apply.
Time Delays
The UW sensor holds the load ON until no motion is detected for the selected
time delay. Select the time delay using DIP switch settings. In the UW-200, both
relays use the same delay.

COVERAGE PATTERNS
Coverage testing
has been performed
according to the NEMA
WD 7 guideline. For
best performance, use
in spaces not larger
than 15’ x 15’.
Ultrasonic Sensor
The sensor has two
ultrasonic transceivers
operating at 40kHz.
Detection sensitivity
can be adjusted using
the trimpot under the
ON/OFF buttons.
Audible Alerts
The UW can provide audible alerts as a warning before the load turns OFF.
Visible (DIP #5 ON)When only one minute is left in the time delay, the load
connected to the relay turns OFF for one second. This
provides a one minute warning before the load(s) are
turned OFF by the sensor.
Visible Alert
The UW sensor can provide a visual alert as a warning one minute before the
load turns OFF.
No visual alert for delay expiration warning.
No Visible
(DIP #5 OFF)
Unit will beep at one minute*, at 30 seconds and at 10
seconds before turning OFF load. When Walk-Through
is active, the unit beeps three times at 10 seconds
before the load goes OFF.
*If Visible Alert is also ON, the one-minute time-out
warning beep is replaced by the visible alert.
Audible Alerts
(DIP #6 ON)
No Alerts No warnings provided.
Call 800.879.8585 for Technical Support
10'
(3.0m)
7.5’
(2.2m)
20’
(6.1m)
15’
(4.5m)
Ultrasonic
Coverage
Major motion
Minor motion
Top View
UW sensor coverage pattern

1. Make sure that the power has been turned OFF at the circuit breaker.
2. Connect wires to the UW flying leads as shown in the wiring diagram below
that is appropriate to the UW model and electrical supply.
3. Attach the UW to the wall box by inserting
screws into the two wide holes on the top
and bottom of the attached metal bracket.
Match them up with the holes in the wall
box and tighten.
4. Turn the circuit breaker ON. Wait one
minute, then push the ON/OFF button for
each load and the lights will turn ON.
5. Test and adjust the sensor if necessary.
6. Install industry standard decorator wall
switch cover plate (not included).
INSTALLATION
Neutral
Ground
Blue
Line Black
Secondary
Load
Brown
Primary
Load
Red
White
Neutral White
Green
Blue
Ground
Primary
Load
Secondary
Load
Neutral White
Red
Brown
Line 2
Line 1 Black
Neutral White
Neutral White
Green
UW-200 Bi-Level Wiring UW-200 Dual Circuit Wiring
WARNING
TURN THE POWER OFF AT THE CIRCUIT BREAKER
BEFORE INSTALLING THE SENSOR OR WORKING ON THE LOAD.
#12 — #14 AWG
Cu Wire Only
Strip Gage
1/2"
12.7mm
Visit our website for FAQs: www.wattstopper.com
Load
Red
Line Black
Neutral
Ground
Green
Neutral White
UW-100 and UW-100-347 Wiring

DELAY
PIR 50%
WALK
TRIGGER
ALERTS
RLY 1 MAN
RLY 2 MAN
ON/OFF Buttons
Relay 1
Relay 2
DIP Switches
Green Ultrasonic
Detection LED
DIP SWITCH SETTINGS
Call 800.879.8585 for Technical Support
Ultrasonic Cones
Ultrasonic Sensitivity
Adjustment Trimpot
Button
Hinges
Tabs
UW-200 shown.
UW-100 has a
single button and
the Ultrasonic
sensitivity
adjustment trimpot
is in a slightly
different position.
8
Auto On
Manual On
Relay 2 Mode
9
No Function
5
Disabled
Enabled
Visible Alert
7
Auto On
Manual On
Relay 1 Mode
4
Disabled
Enabled
Walk-Through
9 12345678
Time
Delay
Walk-Through
ON
Relay 2 Mode
Not Used
Relay 1 Mode
Visible Alert
Audible
Alerts
Test/20 min
10 minutes
15 minutes
20 minutes
25 minutes
30 minutes
Service
5 minutes
123
Time Delay
Service bypasses occupancy
& light level functions.
Control loads manually
using ON/OFF buttons.
6
Disabled
Enabled
Audible Alert
UW-200 ONLY
1
2
All models
UW-100 series
UW-200 series
1
2
Factory Settings:

TROUBLESHOOTING
Lights do not turn ON with motion (LED does flash)
1. Press and release each button to make sure that the correct lights come
ON for each relay. If the lights do NOT turn ON, check wire connections,
especially the Load connection. If the lights turn ON, verify that the cor-
rect On Mode is selected in DIP switches 7 and 8.
2. Check to see if light level control is enabled: cover the sensor lens with
your hand. If the lights come ON, adjust the light level setting.
3. If lights still do not turn ON, call 800.879.8585 for technical support.
Lights do not turn ON with motion (LED does not flash)
1. Press and release each button. Make sure that the correct lights come
ON for each relay. If the lights turn ON, set Ultrasonic Sensitivity to max.
2. Check the wire connections, in particular, the Neutral and Line connec-
tions. Verify that connections are tightly secured.
ADJUSTMENTS
Sensor Adjustment
Remove the wall plate. Remove the button cap by firmly squeezing together the
top sides of the button assembly. Gently pull it away from the unit.
When the adjustments are completed, replace the button cap by inserting its
hinges into the tabs on the main unit and then squeeze the top of the button
while pressing it into the unit. Reinstall the cover plate.
Light Level Adjustment
The light level can be set with loads ON or OFF. To enable light level control and
set the threshold:
1) Make sure the room is lit appropriately. 2) Put the sensor into TEST
mode. You have 5 minutes to complete the procedure. 3) Press and hold
the ON/OFF button (Relay 1button on the UW-200) for 3 seconds, until you
hear a beep. 4) Step away from the sensor. After 25 seconds a beep sounds,
indicating that the threshold level is set. This threshold is retained, even if
power is lost, until it is re-set or disabled. 5) Set the Time Delay DIP switches
to the desired Time Delay.
In the UW-200, light level control only affects Relay 2.
To disable light level control, press and hold the Relay 1button for 7 seconds,
until a double beep tone sounds.
Reset to Default
Use the DIP Switch Settings tables on the previous page to return features
to factory settings. To reset the UW press and hold the Relay 1button for 10
seconds, until a triple beep sounds. This resets the sensor and disables light
level control (the brightest ambient light will not hold the light OFF).

Please
Recycle
2800 De La Cruz Boulevard, Santa Clara, CA 95050
Technical Support: 800.879.8585 • www.wattstopper.com
Warranty Information
WattStopper warranties its products to be free of defects in materials and
workmanship for a period of five years. There are no obligations or liabilities
on the part of WattStopper for consequential damages arising out of or in
connection with the use or performance of this product or other indirect
damages with respect to loss of property, revenue, or profit, or cost of removal,
installation or reinstallation.
3. If lights still do not turn ON, call 800.879.8585 for technical support.
Lights do not turn OFF
1. There can be up to a 30 minute time delay after the last motion is detected. To
verify proper operation, set DIP switch 1 to ON, then reset switches 1, 2 and
3 to OFF to start Test Mode. Move out of view of the sensor. The lights should
turn OFF in approximately 5 seconds.
2. Verify that the sensor is mounted at least six feet (2 meters) away from any
heating/ventilating/air conditioning device that may cause false detection.
3. Verify that the Ultrasonic Sensitivity trimpot is not pointing at “Service” (green
LED is always ON). If so, rotate the trimpot to it’s middle setting. The Service
setting allows users to operate the sensor as a service switch in the unlikely
event of a failure.
4. Verify that DIP switches 1,2, and 3 are not set to “Service” (all switches ON). If
they are, change them to an appropriate Time Delay setting.
5. If the lights still do not turn OFF, call 800.879.8585 for technical support.
Sensing motion outside desired areas
Adjust the Ultrasonic Sensitivity. Rotate trimpot counterclockwise to reduce
sensitivity.
Red LED is lit all the time and the sensor features don’t work
1. Check DIP switches 1,2,3. If they are all ON the unit is in Service Mode.
Set the DIP switches to a valid Time Delay setting.
2. If re-setting the Time Delay switches does not clear the LED call technical
support.
COVER PLATES
WattStopper UW series wall switches fit behind industry standard decorator-
style switch cover plates. Cover plates are not included.
Units come in the following colors, which are indicated by the final suffix of the
catalog number (shown here in parentheses):
White (-W), Light Almond (-LA), Ivory (-I), Grey (-G), Black (-B).
07143r2 6/2011