legrand DSW-301 V2 Dual Tech Occupancy Sensor Instruction Manual

No: 29125 – 11/20 rev. 1
DSW-301 V2 Dual Tech Occupancy Sensor
Instruction Manual

Wattstopper®
Dual Technology Multi-Way Wall Switch Occupancy Sensor (version 2)

Installation Instructions

Catalog Numbers: DSW-301/DSW-302
Country of Origin: Made in China
Models ending in -U are BAA and TAA compliant (Product produced in the U.S.)

SPECIFICATIONS

Voltages ……………………………………………………. 120/240/277 VAC, 50/60 Hz Load Limits for relay 1:
@120 VAC ………………………………………………… 1000-W tungsten, ballast, E-ballast, LED, 1/4 HP
@240/277 VAC …………………………………………. 1200-W ballast, E-ballast, LED, 1/4 HP Load Limits for relay 2:
@120 VAC ………………………………………………… 800-W tungsten, ballast, E-ballast, LED, 1/6 HP
@240/277 VAC …………………………………………. 1200-W ballast, E-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
Ultrasonic Frequency ………………………………….40 kHz
Light Level Adjustment ………………………………. 8fc to 180+fc
Alerts ………………………………………………………… Selectable Audible & Visual
Signal Wire ………………………………………………… Both models
Multi-Way Capability ………………………………….. Both models

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.
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. See the Light Level Adjustment section.
Turning Load(s) 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.

Manual ON
DIP 8 ON for Relay 1
DIP 9 ON for Relay 2| 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.
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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.
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

Presentation Mode
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.
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. See DIP SWITCH SETTINGS for more 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.
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Time Delay
(15 min. DIP 1 ON & 2 OFF)| Time delays are 5, 15, or 30 minutes are available. The default is a 15 minute delay.

Walk-Through Mode
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.
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No Walk-Through
(DIP #3 OFF)| Walk-Through Mode disabled. This is the default.

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.

High
(DIP #4 OFF)| Default setting. Suitable for most applications.
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Low, 50%
(DIP #4 ON)| 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.

Alerts
The DSW can provide audible alerts as a warning before the load turns OFF.

Audible Alerts
(DIP #7 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. This is the default.
---|---
No Audible Alerts
(DIP #7 OFF)| No audible warnings provided.

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 require motion detection by the PIR and the Ultrasonic.
• Either requires motion detection by only one technology.
• PIR requires motion detection by the PIR.

Trigger Mode| Initial Occupancy| Maintain Occupancy| Re- trigger| 5| 6
---|---|---|---|---|---
Standard| Both| Either| Either| |
Option A| PIR| Either| Either| |
Option B| PIRP| RPIR| PIR| |
Option C| Both| Both| Both| |

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 5 seconds turns the lights back ON. If the load was configured as Manual ON, the re-trigger time is 30 seconds.

COVERAGE PATTERNS

Coverage testing has been performed according to the NEMA WD 7 guideline. Forbest 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. This allows you to eliminate coverage in unwanted areas. Since masking removes bands of coverage, remember to take this into account when troubleshooting coverage problems. Ultrasonic Sensor
The sensor has two ultrasonic transceivers operating at 40 kHz. Detection sensitivity canbe adjusted using the trimpot under the ON/ OFF buttons.

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 (see Time Delay switches). You have 10 minutes to complete the procedure.
3. Press and hold the ON/OFF button (Relay 1 button 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 1 button 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 Relay 1 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).

INSTALLATION

WARNING: TURN THE POWER OFF AT THE CIRCUIT BREAKER BEFORE WIRING.

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 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 sensor 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 Auto ON/OFF switch for each load and the lights will turn ON. There is a delay due to initial power-up of the sensor that only occurs during installation.
5. Test and adjust the sensor if necessary.
6. Install industry standard decorator wall switch cover plate (not included).

Signal Wire (Blue with White Stripe) connects to Neutral. For a replacement or retrofit application , it can connect to Ground.

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 wiringthis 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 should be on the same phase.
• All units in the space must be wired using the same connection to the signal wire.
• All units can see each other’s push button events and respond accordingly.
• 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.

NOTE: Button 1 on any sensor controls load #1, and button 2 on any sensor controls load #2.

SENSOR OPERATING MODES

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 automatically 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 unless 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 delay 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 automatically. 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.

DIP SWITCH 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 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 to 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.

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 (such as a high wattage light bulb) mounted near the sensor.
3. 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 5 = ON) if necessary.
2. Mask the PIR sensor’s lens to eliminate unwanted coverage area.
3. Adjust the Ultrasonic Sensitivity. Rotate the trimpot conterclockwise to reduce sensitivity.

Red LED is OFF 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 resetting the Time Delay switches does not set the sensor features, call technical support.

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).
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

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.

No. 29125 – 11/20 rev. 1
© Copyright 2020 Legrand All Rights Reserved.
800.879.8585
www.legrand.us/wattstopper

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