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LEGRAND WattStopper DW-100 - User Manual

LEGRAND WattStopper DW-100
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S a n ta Clara, CA 95050
8 0 0 . 8 7 9 . 8 5 8 5
Specifications
Vo l tag es:
DW-100 & DW - 2 0 0 . . . . . . . . . . . . .1 2 0 / 2 3 0 / 2 7 7 VAC, 50/60Hz
DW - 1 0 0 - 3 4 7 . . . . . . . . . . . . . . . . . . . . . . . . . . .3 4 7 VAC, 50/60Hz
Load Limits for each re l a y :
@ 1 2 0 V AC . . . . . . . . . . . .0-800W tungsten or ballast, 1/6 HP
@230 or 277VAC . . . . . . . . . . . . . . . . . . . . . . .0-1200W ballast
@ 3 4 7 V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0-1500W ballast
Load Type Compatibility:
I n ca n d e s cent, fluore s c ent, magnetic or ele c t ronic ballast
H o rs e p ower Rating (each re l a y ) . . . . . . . . .1/6 HP @120VAC
Time Delay Adjust m e n t . . . . . . . . . . . . . . . . . . . .5 to 30 minute s
Wa l k - T h rough Mode . .3 minutes if no activity after 30 sec.
Te s t Mode . . . 5 sec. at initial power up or DIP switch re s e t
PIR Adjust m e n t . . . . . . . . . . . . . . . . . . .High or Low (DIP switc h )
U l t r asonic Adjust m e n t . . .Minimum to Maximum (trimpot), Off
Fre q u e n c y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 0 k H z
Light Level Adjust m e n t . . . . . . . . . . . . . . . . . . . . . . .8 fc to 180+fc
A le r t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S e l e c t a b le Audible
US Pa tents: 5189393, 5640113,
6617560B2, A4787722
DW - 1 0 0 / D W - 1 0 0 - 3 4 7 / DW - 2 0 0
Dual Te c h n o logy Wall Switc h
O ccupancy Sensor
D W -100 & DW- 1 0 0 - 3 4 7
D W - 2 0 0
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Summary

Specifications

Time Delay Adjustment

Adjustable time delay from 5 to 30 minutes for automatic light shut-off after no motion.

Walk-Through Mode

Shortens the time delay to 3 minutes if no activity is detected after 30 seconds following initial occupancy.

Test Mode

Sets a 5-second delay for initial power-up or DIP switch reset to verify operation.

PIR Adjustment

Allows selection between High and Low sensitivity settings for the Passive Infrared sensor.

Ultrasonic Adjustment

Adjustable sensitivity for the Ultrasonic sensor, from Minimum to Maximum, including an Off setting.

Light Level Adjustment

Sets a threshold for ambient light levels (8fc to 180+fc) to prevent lights from turning on when daylight is sufficient.

Audible Alerts

Provides selectable audible warnings before the load turns OFF, such as whistles, chirps, or beeps.

Unit Description and Operation

Auto ON Mode

Load turns ON and OFF automatically based on occupancy. Manual OFF reverts to Auto ON after 5 minutes.

Manual ON Mode

Occupants must press the ON/OFF button to turn ON the load. Sensor keeps load ON until no motion is detected.

Time Delays

The sensor holds the load ON until no motion is detected for the selected time delay.

Advanced Configuration Options

SmartSet Auto Time Delay and Test Mode

Records occupancy patterns to select optimal time delay (7-30 mins) and enables a 5-second Test Mode.

Fixed Time Delay Settings

Allows setting fixed time delays of 5, 15 (default), or 30 minutes via DIP switch settings.

Walk-Through Mode Settings

Configures the Walk-Through mode (enabled/disabled) to shorten time delay after brief occupancy.

PIR Sensitivity Adjustment

Adjusts PIR sensor sensitivity to High (default) or Low (50%) to optimize coverage and reduce false triggers.

Audible Alert Settings

Enables or disables audible alerts that warn before the load turns off.

Trigger Mode and Coverage

Occupancy Trigger Modes

Four options (Standard, A, B, C) for determining occupancy using PIR and/or Ultrasonic sensors.

PIR Sensor Coverage

Details the PIR sensor's two-tiered Fresnel lens with a 180-degree field of view.

Lens Masking

Instructions for using opaque tape to mask sections of the PIR sensor's lens to eliminate unwanted coverage.

Ultrasonic Sensor Operation

Describes the two ultrasonic transceivers and adjustable sensitivity via trimpot.

Installation Guide

Safety Warning

Crucial warning to turn OFF power at the circuit breaker before installation or working on the load.

DW-100;DW-100-347 Wiring

Wiring diagram for DW-100 and DW-100-347 models, showing connections to electrical supply.

DW-200 Bi-Level Wiring

Wiring diagram for DW-200 Bi-Level configuration with primary and secondary load connections.

DW-200 Dual Circuit Wiring

Wiring diagram for DW-200 Dual Circuit configuration, detailing primary and secondary load connections.

DIP Switch Settings Reference

Time Delay (DIP 1-2)

Sets Time Delay to Auto/Test, 5, 15 (default), or 30 minutes.

Walk-Through (DIP 3)

Enables or disables the Walk-Through mode.

PIR Sensitivity (DIP 4)

Sets PIR sensor sensitivity to High (default) or Low (50%).

Trigger Mode (DIP 5-6)

Selects occupancy detection logic: Standard, Option A, Option B, or Option C.

Audible Alerts (DIP 7)

Enables or disables audible alerts.

Relay 1 On Mode (DIP 8)

Sets Relay 1 to Auto On or Manual On.

Relay 2 On Mode (DIP 9)

Sets Relay 2 (DW-200 only) to Auto On or Manual On.

Adjustments and Troubleshooting

Sensor Adjustment Procedure

Instructions for removing and reinstalling the button cap for sensor adjustments.

Light Level Adjustment Procedure

Steps to enable, set, and disable light level control for preventing lights ON in daylight.

Reset to Default Procedure

How to reset the sensor to factory settings, clearing occupancy history and disabling light control.

Lights Do Not Turn ON (LED Flashes)

Troubleshooting steps when motion is detected but lights remain OFF.

Lights Do Not Turn ON (LED Does Not Flash)

Troubleshooting steps when no motion is detected and lights remain OFF.

Operational Issues and Ordering

Lights Do Not Turn OFF

Diagnosing and resolving issues where lights remain ON after motion ceases.

Sensing Motion Outside Desired Areas

Tips for adjusting PIR sensitivity and masking the lens to avoid unwanted motion detection.

Ordering Information

Catalog numbers for DW sensors and cover plates, including color options.

Warranty Information

Details the five-year warranty against defects in materials and workmanship.

Overview

The DW-100/DW-100-347/DW-200 Dual Technology Wall Switch Occupancy Sensor combines advanced passive infrared (PIR) and ultrasonic technologies to eliminate false triggering in various applications. This integrated design allows the sensor to detect occupancy using both methods, ensuring reliable performance even in challenging environments.

Function Description

The sensor's primary function is to automatically control lighting loads based on occupancy. It can turn lights on when a space is occupied and hold them on as long as occupancy is detected. After no movement is detected for a user-selected time delay, the lights will switch off. A "walk-through" mode further refines this by turning lights off after only 3 minutes if no activity is detected after 30 seconds following an initial occupancy detection, making it efficient for brief entries and exits.

The DW-100 model features a single relay and one ON/OFF button, controlling one load. The DW-200, on the other hand, includes two relays and two independent ON/OFF buttons, enabling control of one or two separate loads. Pressing an ON/OFF button toggles the state of its corresponding relay.

An integrated light level sensor allows the DW sensor to hold the load OFF if sufficient daylight is present, even when the area is occupied. In the DW-200, this light level control specifically affects the load on Relay 2. Users can override this function by manually pressing the ON/OFF button.

Usage Features

The DW sensor offers flexible operating modes, allowing relays to be programmed independently for either Auto ON or Manual ON.

  • Auto ON Mode: In this mode, the load turns ON and OFF automatically based on occupancy. If the load is manually turned OFF, it remains OFF for 5 minutes after the last occupancy detection, then reverts to Auto ON. Pressing the button to turn lights ON returns the sensor to Auto ON mode immediately.
  • Manual ON Mode: Occupants must press the ON/OFF button to turn the load ON. The sensor then keeps the load ON until no motion is detected for the set time delay. A 30-second re-retrigger delay is included; if occupancy is re-triggered during this delay, the sensor turns the load back ON. After this delay, the ON/OFF button must be pressed again to turn the load ON.

Time delays are adjustable, allowing users to select between 5, 15 (default), or 30 minutes. The sensor can also utilize a SmartSetâ„¢ feature, which records typical occupancy patterns and automatically adjusts the time delay from 7 to 30 minutes for optimal efficiency. A Test Mode with a 5-second delay is available for quick setup and verification.

PIR sensitivity can be adjusted to "High" (default) for most applications or "Low" (50% reduction) for situations where the PIR might detect movement outside the desired area or respond to heat sources.

The DW sensor can provide audible alerts as a warning before the load turns OFF. These alerts include "Whistles" twice (at one minute and 30 seconds before OFF), "Chirps" (10 seconds before OFF), and "Beeps" three times (10 seconds before OFF in Walk-Through mode).

Four occupancy trigger options are available, set via DIP switches, to determine how the sensor deems an area occupied:

  • Standard (Both): Requires motion detection by both PIR and Ultrasonic technologies for initial occupancy.
  • Option A (PIR/Either): Requires PIR for initial occupancy, but either technology can maintain occupancy.
  • Option B (PIR/PIR): Requires PIR for both initial and maintained occupancy.
  • Option C (Both/Both): Requires both technologies for both initial and maintained occupancy.

The sensor's coverage patterns are designed according to NEMA WD 7 guidelines, with optimal performance in spaces not larger than 18' x 15'. The PIR sensor features a two-tiered, multi-cell Fresnel lens with a 180-degree field of view, and a red LED flashes upon PIR detection. Opaque adhesive tape is provided to mask sections of the PIR lens, allowing users to eliminate coverage in unwanted areas and troubleshoot coverage issues. The ultrasonic sensor has two transceivers operating at 40kHz, with sensitivity adjustable via a trimpot located under the ON/OFF buttons.

Maintenance Features

Adjustments to the sensor, such as PIR sensitivity, time delay, and trigger mode, are made using DIP switches located under the button cap. The ultrasonic sensitivity is adjusted via a trimpot.

Light level adjustment is a key maintenance feature. To set the threshold, users ensure the room is appropriately lit, put the sensor into TEST mode, then press and hold the Relay 1 ON/OFF button for 3 seconds until a beep sounds. After 25 seconds, another beep confirms the threshold is set. This setting is retained even if power is lost. To disable light level control, the Relay 1 button is held for 7 seconds until a double beep tone sounds.

The device can be reset to factory settings by pressing and holding the Relay 1 button for 10 seconds until a triple beep sounds. This action resets the sensor's occupancy history and disables light level control.

Troubleshooting guidance is provided for common issues:

  • Lights do not turn ON with motion (LED does flash): Users should verify correct ON Mode settings, check wire connections (especially the Load connection), and confirm light level control isn't preventing activation.
  • Lights do not turn ON with motion (LED does not flash): Users should ensure PIR and Ultrasonic Sensitivity are set to High and check wire connections (particularly Neutral and Line connections) for tightness.

For persistent issues, technical support contact information is provided.

LEGRAND WattStopper DW-100 Specifications

General IconGeneral
CategoryAccessories
MaterialPlastic
ColorWhite
TypeOccupancy Sensor
Voltage120/277 VAC, 60 Hz
Coverage Area1000 sq ft
Sensor TechnologyPassive Infrared (PIR)
Mounting TypeWall Mount
GangSingle-Gang

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