LEGRAND DW-311 - User Manual

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WATTSTOPPER
SENSORS
Description
The DW-311 dual technology dimming wall switch sensor can
turn lights OFF and ON based on occupancy and allow the user
to increase or decrease the lighting level. It combines the bene-
fits of passive infrared (PIR) and ultrasonic occupancy detection
technologies and works with 0-10 VDC dimming drivers and
ballasts to control lighting loads including LEDs.
Operation
The DW-311 installs in a single gang junction box. Factory
default operation is for Manual-ON, so that users turn lights
on only when needed. Once the space is vacated and the time
delay elapses, lights automatically turn OFF. DIP switch settings
enable a variety of control options such as Auto-ON operation,
high and low trim, ramp up and fade down times, power
loss mode, smart light level, walk-through and test modes.
Additonal DIP switch settings allow the user to choose which
sensing technologies turn ON, hold ON or retrigger the lighting.
Partial-ON Option
When set for Automatic-ON operation, the DW-311 typically
comes ON to the last non-zero light level for occupant comfort
and convenience. However, this default setting may be changed
to a fixed light level value of 50%, 75% or 100%. The dimmed
level options (Preset On Level) support new state and federal
energy code requirements.
Applications
This dual technology sensor has the flexibility to work in a
variety of applications including spaces that benefit from
enhanced small motion detection. Common applications include
small and executive offices, small and medium conference
rooms and lunch/break rooms. Multiple DW-311 sensors may
be used to control a lighting load in spaces with up to four
switch locations; each device provides fully functional dimming
control. When additional sensors are used for multi-way
control, each connected sensor expands the coverage area.
DUAL TECHNOLOGY 010 VOLT DIMMING WALL SWITCH
OCCUPANCY SENSOR
DW311
Defaults to Manual-ON operation for
maximum energy savings
Supports Partial-ON operation for energy
code compliance or incentives
Allows fully functional multi-way control
from up to four switch locations
High sensitivity and dense coverage for
exceptional performance
120/277VAC and 347VAC models
Color-matched lens and
low profile for appealing design
OCCUPANCY AND VACANCY
• Vandal resistant lens combines precise coverage with
durability
• Presentation mode may be deactivated to allow Auto-ON
operation after 15 second time delay for spaces with tran-
sient occupancy
• Optional smart light level adapts ambient light hold off
threshold to meet user needs
• Selectable walk-through mode turns lights off three minutes
after the room is initially occupied if no motion is detected
after the first 30 seconds
• Test mode allows quick and easy verification of coverage
• Selectable audible and/or visual alerts for impending shutoff
• LED indicates occupancy detection
• Service mode allows sensor to operate as a service switch in
the unlikely event of a failure
• Zero-crossing for long relay life
• No derating required for multi-gang applications
• Sensor coverage tested to NEMA Guide Publication WD 7-2000
• Compatible with decorator wall plates
• This product meets the material restrictions of RoHS
Features

Summary

Product Description and Operation

Product Description

Dual technology dimming wall switch sensor controls 0-10VDC lighting, combining PIR and ultrasonic detection.

Operation Modes

Factory default is Manual-ON. DIP switches control various options like Auto-ON, trims, and time delays.

Partial-ON Option

Allows setting a fixed light level (50-100%) for energy code compliance.

Applications

Suitable for offices, conference rooms, and break rooms; supports multi-way control.

Product Specifications

General Specifications

120/277VAC or 347VAC models, 0-10VDC dimming, adjustable time delays, power loss options.

Coverage and Dimensions

PIR/Ultrasonic coverage patterns, dimensions, UL/cUL listed, five-year warranty.

Installation and Wiring

Product Controls and Wiring Diagrams

Details product controls, wiring diagrams for 0-10V dimming, and multi-way wiring.

DIP Switch Settings

Configuration options for time delay, modes, sensitivity, and other features via DIP switches.

Coverage Patterns

Visual representation of major and minor motion detection coverage areas.

Ordering Information

Catalog Numbers and Load Ratings

Lists available catalog numbers by color and voltage, with corresponding load ratings.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Wattstopper DW-311 is a dual technology 0-10 volt dimming wall switch occupancy sensor designed to control lighting loads, including LEDs, by turning lights ON and OFF based on occupancy and allowing users to adjust the lighting level. It combines passive infrared (PIR) and ultrasonic occupancy detection technologies.

Function Description

The DW-311 operates by detecting occupancy using both PIR and ultrasonic technologies. When a space is occupied, the sensor can turn lights ON (either manually or automatically) and allows the user to increase or decrease the lighting level. Once the space is vacated and a set time delay elapses, the lights automatically turn OFF. The device supports 0-10 VDC dimming control, sinking up to 50mA for compatible ballasts (up to 12 if each sources 2mA), and is compatible with Class 1 wiring.

By default, the DW-311 operates in Manual-ON mode, requiring users to turn lights on only when needed, which maximizes energy savings. It also supports Partial-ON operation, where lights turn on to a preset level (50%, 75%, or 100%) when set for Automatic-ON, supporting energy code compliance.

The sensor can be used in multi-way control setups, allowing up to four switch locations to control a single lighting load, with each connected sensor expanding the coverage area and providing full dimming control.

Important Technical Specifications

• Voltage:
  • DW-311: 120/277VAC; 50/60Hz
  • DW-311-347: 347VAC; 50/60Hz
• Dimming Control Signal: 0-10VDC, sinks up to 50mA for control of compatible ballasts (12 if each sources 2mA); Class 1 wiring.
• Time Delays: Selectable options include 3, 5, 15, or 30 minutes, walk-through mode, and test mode.
• Power Up After Power Loss: Configurable to On, Off, or last state.
• Coverage:
  • Major motion: PIR 35' x 30', Ultrasonic 20' x 20'
  • Minor motion: PIR 20' x 15', Ultrasonic 15' x 15'
• Sensitivity Adjustment: PIR (high/low), Ultrasonic (fully variable).
• Dimensions (L x W x D): 2.73" x 1.75" x 1.81" (69mm x 44mm x 46mm).
• Listings: UL and cUL listed (E101196).
• Warranty: Five-year warranty.
• Load Rating:
  • @120VAC: 0-1000W ballast, E-ballast, LED, tungsten; 1/4hp motor.
  • @277VAC: 0-1200W ballast, E-ballast, LED; 1/4hp motor.
  • @347VAC: 0-1500W ballast, LED; 1/4hp motor.
• Environmental Compliance: Meets the material restrictions of RoHS.

Usage Features

• Installation: Installs in a single-gang junction box.
• Control Options: DIP switch settings allow for customization of:
  • Auto-ON operation.
  • High and low trim levels for dimming.
  • Ramp up and fade down times for lighting transitions.
  • Power loss mode behavior.
  • Smart light level adaptation.
  • Walk-through mode.
  • Test mode for coverage verification.
  • Selection of which sensing technologies (PIR, Ultrasonic, or both) turn ON, hold ON, or retrigger the lighting.
• Partial-ON Option: When set for Automatic-ON, the device can turn lights ON to a fixed light level (50%, 75%, or 100%) instead of the last non-zero level, supporting energy code requirements.
• Presentation Mode: Can be deactivated to allow Auto-ON operation after a 15-second time delay, useful for spaces with transient occupancy.
• Smart Light Level: An optional feature that adapts the ambient light hold-off threshold to meet user needs.
• Walk-Through Mode: Turns lights off three minutes after initial occupancy if no motion is detected after the first 30 seconds.
• Multi-Way Control: Allows fully functional multi-way control from up to four switch locations.
• High Sensitivity and Dense Coverage: Designed for exceptional performance in detecting occupancy.
• Color-Matched Lens and Low Profile: Provides an appealing design that blends with decor.
• Vandal Resistant Lens: Combines precise coverage with durability.
• Audible/Visual Alerts: Selectable alerts for impending shutoff.
• LED Indicator: An LED indicates occupancy detection (Red for PIR, Green for Ultrasonic).
• Zero-Crossing: Ensures long relay life.
• Multi-Gang Applications: No derating required for multi-gang installations.
• Compatibility: Compatible with decorator wall plates.

Maintenance Features

• Test Mode: Allows quick and easy verification of coverage during installation or troubleshooting.
• Service Mode: Allows the sensor to operate as a service switch in the unlikely event of a failure, ensuring basic light control.
• Reset to Default: A DIP switch setting allows for resetting the device to factory default settings by pressing and holding the UP or DOWN button for 5 seconds.

LEGRAND DW-311 Specifications