wattstopper DSW-301 User manual

Santa Clara, CA 95050
800.879.8585
Installation Instructions
Specifications
Voltages:
DSW-301 & DSW-302. . . . . . . . . . . . . .120/277VAC, 50/60Hz
DSW-301-347 & DSW-302-347 . . . . . . . . ..347VAC, 50/60Hz
Load Limits for relay 1:
@120VAC . .1000W tungsten, ballast, E-ballast, LED, 1/4 HP
@277VAC...... . . . 1200W ballast, E- ballast, LED, 1/4 HP
@347VAC . . . . . . . . . . . . . . . . . . 1500W ballast, LED, 1/4 HP
Load Limits for relay 2:
@120VAC . . .800W tungsten, ballast, E-ballast, LED, 1/6 HP
@277VAC . . . . . . . . . 1200W ballast, E-ballast, LED, 1/6 HP
@347VAC . . . . . . . . . . . . . . . . . . 1500W ballast, LED, 1/6 HP
Time Delay Adjustment ....................5 to 30 minutes
Walk-Through Mode .... 3 minutes if no activity after 30 sec.
Test Mode ................. 10 min. with 5 sec. time delay
PIR Adjustment ..............................High or Low
Ultrasonic Adjustment ...........Minimum to Maximum, Off
Frequency ....................................40kHz
Light Level Adjustment ......................8fc to 180+fc
Alerts ..............................Selectable Audible
Optional Neutral . . . . . . . . . . . . . . . . . . . . . . . . . . . . .All models
Multi-Way Capability . . . . . . . . . . . . . . . . . . . . . . . . ..All models
Terminal screw torque . . . . . . . . . . . . . . . 16 lbf-in (18 kgf-cm)
DSW-301/DSW-301-347
DSW-302/DSW-302-347
Dual Technology Multi-Way Wall Switch
Occupancy Sensors
DSW-301 DSW-302
DSW-301-347 DSW-302-347

Alerts
The DSW can provide audible alerts as a warning before the load turns OFF.
High (DIP #4 OFF) Default setting. Suitable for most applications.
PIR Sensitivity Adjustment
The DSW sensor constantly monitors the controlled environment and
automatically adjusts the PIR to avoid common ambient conditions that can
cause false detections, while providing maximum coverage.
Time Delay (15 min.
DIP 1 ON & 2 OFF)
Time delays of 5, 15 (default), or 30 minutes are
available. See DIP SWITCH SETTINGS for information.
Test/20 min
(DIP 1 & 2 OFF)
A Test Mode with a short time delay of five seconds
is set when DIP switches 1 & 2 are OFF. It cancels
automatically after ten minutes, or when you set a
fixed time delay. When the Test Mode times out, the
sensor will assume 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.
Reduces sensitivity by approximately 50%. Useful in
cases where the PIR is detecting movement outside of
the desired area (also consider masking the lens) and
where heat sources cause unnecessary activation.
Low, 50%
(DIP #4 ON)
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.
Audible Alerts
(DIP #7 ON)
No Alerts No warnings provided.
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.
Walk-Through
Mode
(DIP #3 ON)
The DSW 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.
No Walk-Through Walk-Through mode disabled.
Shading indicates default operation.
Time Delays
The DSW 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 DSW-302,
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 18’ x 15’.
PIR Sensor
The sensor has a two-tiered,
multi-cell viewing Fresnel lens
with 180 degree field of view. The
red LED on the sensor flashes
when the PIR detects motion.
Masking the lens
Opaque adhesive tape is supplied
so that sections of the PIR sensor’s
view can be masked. You can
eliminate coverage in unwanted
areas. Since masking removes
bands of coverage, take this into
account when troubleshooting
coverage problems.
Ultrasonic Sensor
The sensor has two ultrasonic transceivers operating at 40kHz. Detection
sensitivity can be adjusted using the trimpot under the ON/OFF buttons.
Trigger Mode
The DSW sensor has four occupancy trigger options, set with DIP switches 5 and 6.
Determine the appropriate option using the Trigger matrix.
In the Trigger Mode DIP switch setting table, in order to deem the area occupied:
• Both requires motion detection by the PIR
and the Ultrasonic.
• Either requires motion detection by only one
technology.
• PIR requires motion detection by the PIR.
Initial Occupancy: The method that activates a
change from “Standby” (area unoccupied and
load off) to “Occupied” (area occupied and load
may turn ON).
Maintain Occupancy: The method indicating that the area is still occupied and the
lights should remain ON.
Re-trigger: In Auto On Mode, after the load turns off, detection by the selected
technology within the number of seconds indicated turns the lights back ON. If the
load was configured as Manual ON, the re-trigger time is 30 seconds.
Call 800.879.8585 for Technical Support
56
Trigger
Mode
Initial
Occupancy
Maintain
Occupancy
Re-trigger
(seconds
duration)
Option C
Both Both Both (5)
Standard
Either (5)Either
Option A
Either Either (5)PIR
Both
Option B
PIR PIR PIR (5)
PIR
Coverage
7.5’
(2.2m)
15’
(4.5m)
20’
(6.1m)
35’
(10.6m)
Major motion
Minor motion
Ultrasonic
Coverage
10'
(3.0m)
7.5’
(2.2m)
13’
(4.0m)
10’
(3.0m)
Major motion
Minor motion
4’
(1.2m)
13’
(4.0m)
35’
(10.6m)
0
Top View
Side View

1. Make sure that the power has been turned OFF at the circuit breaker.
2. Connect wires to the DSW flying leads as shown in the wiring diagram below
that is appropriate to the DSW model and electrical supply. The ground wire
(green) must be fastened to ground for
the sensor to work properly.
3. Attach the DSW 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.
There is a delay due to
initialpower-up of the
sensor that only occurs
during installation.
5. Test and adjust the sensor
INSTALLATION
DSW-302 and DSW-302-347
Bi-Level Wiring
DSW-302 and DSW-302-347
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
Load
Red
Black
Neutral
Line
Green
Green
Neutral
(optional)
Ground
Yellow
DSW-301 and DSW-301-347 Wiring
Red
Black
Neutral
Line
Green
Green
Ground
Blue
Primary
Load
Secondary
Load
Neutral
(optional)
Brown
Yellow
Red
Black
Neutral
Line 1
Green
Green
Ground
Blue
Primary
Load
Brown Secondary
Load
Line 2
Neutral
Neutral
(optional)
Yellow

DSW-302 and DSW-302-347
Dual Circuit Wiring
DSW-301 and DSW-301-347 Wiring
Breakaway
tab
Optional neutral
terminals behind
breakaway tab
6" ying leads for
line, load, ground
and multi-way
connections
Optional Neutral Wiring
For applications requiring neutral wiring, remove
tab as shown to expose terminals for wiring.
Black Load
Red
Black
Neutral
Neutral
(optional)
Line
Neutral
(optional)
Ground
Green
Green
Ground
Green
Green
Yellow
traveler
Yellow
Multi-Way
The Multi-Way capability is available on all models. Sensors can easily be
wired together for convenient control of a common load. When wiring this
way, only use 300 series sensors. Multi-Way in 300 series is not compatible
with prior sensor models.
The following princlples apply for Multi-Way:
• All units can see each other’s push button events and respond accord-
ingly.
• All units can see each other’s PIR trigger event. The response will be
determined by the Light Level setting and/or conditions of the space of
the detecting sensor.
• The time delay for all units is defined by the unit with the smallest time
delay
Typical wiring
(DSW-301 or DSW-301-347 - up to 4 sensors)

Breakaway
tab
Optional neutral
terminals behind
breakaway tab
6" ying leads for
line, load, ground
and multi-way
connections
Sensor Operating Modes
Sensor #1 Sensor #2 Light Fixture
Auto-ON Auto-ON The load turns ON and OFF automatically
based on occupancy detection by either one
of the sensors. The sensors keep the load
ON until no motion is detected and will use
the time delay of the sensor with the lowest
value. At any time, the light can be turned
ON and OFF using the ON/OFF button of any
one of the sensors. If the load is turned OFF
manually by pressing either one of the ON/
OFF buttons, the unit will enter Presentation
mode.
Auto-ON* Manual-ON* The load can only be turned ON automati-
cally by the sensor set in Auto-ON mode. The
sensors keep the load ON until no motion is
detected and will use the time delay of the
sensor with the lowest value. There is either
a 30 second re-trigger delay for the sensor
set in Manual-ON mode or instant re-trigger
for the sensor set in Auto-ON mode. After
the re-trigger delay elapses, the ON/OFF
button of the sensor set in Manual-ON mode
must be pressed to turn the load back on un-
less the sensor set in Auto-ON mode detects
motion. If the light is turned OFF manualy by
pressing the ON/OFF button set in Auto-ON,
it will enter Presentation mode.
Manual-ON Manual-ON The occupant must press the ON/OFF button
on either one of the sensors to turn the light
ON. The sensors keep the load ON until no
motion is detected and will use the time de-
lay of the sensor with the lowest value. There
is a 30 second re-trigger delay, meaning the
occupant has 30 seconds to be detected for
the sensor to turn the load back on auto-
matically. After the re-trigger delay elapses,
the ON/OFF button of any one of the sensors
must be pressed to turn the load back ON.
* Although this configuration may be selected, it is not recommended.
Bi-level wiring
(DSW-302 and DSW-302-347 - up to 4 sensors)
Note: Button 1 on any sensor controls load #1 and button 2 on any sensor controls load #2.
Two-phase wiring
Multi-Way
The Multi-Way capability is available on all models. Sensors can easily be
wired together for convenient control of a common load. When wiring this
way, only use 300 series sensors. Multi-Way in 300 series is not compatible
with prior sensor models.
The following princlples apply for Multi-Way:
• All units can see each other’s push button events and respond accord-
ingly.
• All units can see each other’s PIR trigger event. The response will be
determined by the Light Level setting and/or conditions of the space of
the detecting sensor.
• The time delay for all units is defined by the unit with the smallest time
delay

Bi-level wiring
(DSW-302 and DSW-302-347 - up to 4 sensors)
Note: Button 1 on any sensor controls load #1 and button 2 on any sensor controls load #2.
Two-phase wiring
Black Black
Neutral
Neutral
(optional)
Line
Yellow
Red Primary
Load
Brown Secondary
Load
Neutral
(optional)
Ground
Green
Green
Ground
Green
Green
Red
Brown
Blue Blue
Black Black
Neutral
Ground
Green
Neutral
(optional)
Line 1
Yellow
Red Primary
Load
Brown Secondary
Load
Neutral
(optional)
Blue Blue
Green
Ground
Green
Green
Red
Brown
Line 2
Neutral

Presentation Mode is a feature of the Auto ON mode. When both relays are manually turned
OFF the DSW holds the lights OFF until no motion has been detected for the duration of the
Time Delay. With subsequent occupancy, the DSW 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.
UNIT DESCRIPTION AND OPERATION
The DSW Dual Technology Multi-Way Wall Switch sensors combine advanced passive infrared
(PIR) and ultrasonic technologies into one unit. The combined technologies help to eliminate
false triggering even in difficult applications.
Selectable operating modes allow the sensor to turn a load ON, and hold it ON as long as
either or both technologies detect occupancy. It allows for up to 4 sensors to be connected
to the same circuit. The first sensor to detect occupancy will turn ON all the lights that are
connected to the same circuit. After the room is unoccupied, the last sensor that detected
occupancy turns OFF all the lights once the time delay has expired. The occupant can turn
OFF the load at any time by pressing the ON/OFF button of any sensor that is connected to
the circuit. 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 DSW-301 has one relay and one ON/OFF button. The DSW-302 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. Optional Neutral is also available on all models.
DSW 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 DSW-302, light level
only affects the load on Relay 2. Users can override this function by pressing the ON/OFF
button.
Turning ON the Load (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.
Manual ON
DIP 8 ON
for Relay 1
DIP 9 ON for
Relay 2
Auto ON
DIP 8 OFF
for Relay 1
DIP 9 OFF
for Relay 2
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.
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 re-triggers during the
delay (see Trigger Mode), 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.
Model # Relay Default ON Mode DIP switch # Setting
DSW-301 1 Manual ON 8 ON
DSW-302 1 Auto ON 8 OFF
2 Manual ON 9 ON

DELAY
PIR 50%
WALK
TRIGGER
ALERTS
RLY 1 MAN
RLY 2 MAN
ON/OFF Buttons
Relay 1
Relay 2
DIP Switches
PIR Lens
Detection LEDs
Red = PIR
Green = Ultrasonic
DIP SWITCH SETTINGS
9
=ON =OFF
12345678
Time
Delay
Walk-Through
ON
Relay 1
Relay 2
Audible Alerts
PIR Sensitivity
8
Auto On
Manual On
Relay 1 On Mode
9
Auto On
Manual On
Relay 2 On Mode
4
High
Low, 50%
PIR Sensitivity
7
Disabled
Enabled
Audible Alert
12
5 minutes
Test/20 min
15 minutes
30 minutes
Time Delay
56
Trigger
Mode
Initial
Occupancy
Maintain
Occupancy
Re-trigger
(seconds
duration)
Option C
Both Both Both (5)
Standard
Either (5)Either
Option A
Either Either (5)PIR
Both
Option B
PIR PIR PIR (5)
3
Disabled
Enabled
Walk-Through
Trigger
Mode
DSW-302 ONLY
On Mode
1
2
Factory Settings:
All models
DSW-301
DSW-302
1
2
Call 800.879.8585 for Technical Support
Ultrasonic Cones
Ultrasonic Sensitivity
Adjustment Trimpot
Button
Hinges
Tabs
DSW-302 shown.
DSW-301 has a
single button and the
Ultrasonic sensitivity
adjustment trimpot
is in a slightly
different position.

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 correct On Mode is selected in DIP switches 8 and 9.
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 PIR and Ultrasonic
Sensitivity to High.
2. Check the wire connections, in particular, the Neutral, Line and Ground
connections. Verify that connections are tightly secured.
3. If lights still do not turn ON, call 800.879.8585 for technical support.
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 10 minutes to complete the procedure. 3) Press and
hold the ON/OFF button (Relay 1button on the DSW-302) for 3 seconds, until
you hear a beep. 4) Step away from the sensor. After 10 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. In the DSW-302, 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 DSW press and hold the ON/OFF button 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).

COVER PLATES
WattStopper DSW 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).
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 and 2 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. Verify that there is no significant heat source (e.g., high
wattage light bulb) mounted near the sensor.
3. Verify that the trimpot is not pointing at “Service” (red LED ON). If so,
rotate the trimpot to it’s middle setting (pointing up). The Service setting
allows users to operate the sensor as a service switch in the unlikely
event of a failure.
4. If the lights still do not turn OFF, call 800.879.8585 for technical support.
Sensing motion outside desired areas
1. Select PIR Sensitivity — Low (DIP switch 4 = ON) if necessary.
2. Mask the PIR sensor’s lens to eliminate unwanted coverage area.
3. Adjust the Ultrasonic Sensitivity. Rotate trimpot counterclockwise to
reduce sensitivity.
If Red LED is blinking all the time and the sensor features don’t
work.
1. Check the Ultrasonic trimpot. If it is set at fully counter-clockwise (MIN)
the unit is in Service Mode. Set the trimpot to a mid-range position.
2. If re-setting the trimpot does not clear the LED call technical support.

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2800 De La Cruz Boulevard, Santa Clara, CA 95050
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 (5) 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.
17852r2 11/2013