Wattstopper PW-311 Passive Infrared 0-10 Volt Wall Switch Occupancy Sensor

Product Description

The Wattstopper PW Passive Infrared Wall Switch sensors utilize advanced passive infrared (PIR) technology. PW sensors offer Multi-Way capability on all models. A "walk-through" mode can turn lights off after only 3 minutes if no activity is detected within 30 seconds following an occupancy detection. The PW-311 model features a relay with dimming control capability and two buttons for dimming control. These sensors include a light level sensor; if adequate daylight is present, the sensor will keep the load OFF until light levels drop, even if the area is occupied. In case of normal power loss to the PW-311, the 0-10V dimming control will open. Any light fed by a separate circuit but controlled by the unit's 0-10V signal will go to 100%.

Specifications

Installation

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

1. Ensure power is turned OFF at the circuit breaker.
2. Connect wires to the PW flying leads as shown in the appropriate wiring diagram for your model and electrical supply. The ground wire (green) must be fastened to ground for proper sensor function.
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. Align with wall box holes and tighten. Avoid excessive force to prevent bending the mounting strap, which could affect button operation.
4. Turn the circuit breaker ON. Wait one minute, then push the Auto ON/OFF switch; lights will turn ON. A delay occurs due to initial sensor power-up during installation.
5. Test and adjust the sensor as needed.
6. Install an industry-standard decorator wall switch cover plate (not included).

WARNING: Grounding the purple and pink wires can damage the unit. Do not apply power until all wires are connected or capped off if the driver is to be installed later.

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

NOTE: Per UL, the 0-10V negative dimming wire color has been changed from gray to pink.

Wiring Diagram Description (Typical):

The diagram shows connections for Line (Black wire), Neutral (White wire), and Ground (Green wire). The 0-10V Dimming control uses Purple and Pink wires, connecting to a Driver or Ballast. The Signal wire (Blue with White Stripe) connects to Neutral or Ground.

Multi-Way Wiring

The Multi-Way capability is available on all models, allowing sensors to be wired together for common load control. Only use 311 series sensors for this; Multi-Way in the 311 series is not compatible with prior models.

Multi-Way Principles:

• All units must be on the same phase.
• Units can sense each other's push button and PIR trigger events, responding based on Light Level settings and space conditions.
• The time delay for all units is determined by the unit with the shortest time delay.
• Units can sense each other's dimming events and respond accordingly.

NOTE: Models v3 and v2 can be combined for multi-way applications, but not with v1 models.

Typical Multi-way Wiring Diagram Description:

This diagram illustrates wiring for up to 4 sensors. It shows Line, Neutral, and Ground connections. Key connections include the 0-10V leads to the dimming ballast from one PW-311. Traveler wires (Yellow, Pink, Purple, Red) connect between sensors, carrying signal and power. The Signal wire (Blue with White Stripe) is also shown connecting between units.

Using the PW-311 with Emergency Lighting

When used with an ELCU (Emergency Lighting Control Unit), Wattstopper recommends it. The PW-311's 0-10VDC dimming circuit connects to and alters the light level of both normal and emergency powered lighting loads. The 0-10V signal is generated by the PW-311.

Behavior with ELCU:

• Normal Power Available: If normal power is available and the sensor turns off the normal load, the ELCU also turns off the emergency load.
• Normal Power Unavailable: If normal power fails, the PW-311's 0-10VDC dimming circuit becomes an open circuit. Fixtures fed by emergency power will turn ON fully, while normal power fixtures will remain OFF.

When no ELCU is used:

In this scenario, the sensor can only dim emergency lighting, not turn it ON or OFF. The normal lighting load has full control. If normal power fails, the emergency load will turn ON fully. Emergency circuits fed from a panel must be powered by a guaranteed source like a UPS or generator.

Button Functions

• Pressing and holding UP ramps lights to the maximum (High Trim).
• Pressing and holding DOWN dims lights to the minimum (Low Trim).
• Tapping UP when OFF sets the load to the last non-zero value.
• Tapping UP when ON sets the load to the maximum (high trim) value.
• Tapping UP twice when OFF turns the load to its maximum (high trim) value.
• Tapping DOWN when ON turns the load OFF.

Coverage Patterns

Coverage testing followed NEMA WD 7 guidelines. Optimal performance is in spaces up to 15' x 12'.

PIR Sensor:

The sensor features a two-tiered, multi-cell Fresnel lens with a 180-degree field of view. A red LED on the sensor flashes when PIR motion is detected.

Masking the Lens:

Opaque adhesive tape is supplied to mask sections of the PIR sensor's view, allowing elimination of coverage in unwanted areas. Masking removes bands of coverage, which should be considered during troubleshooting.

Coverage Diagram Descriptions:

Side View: Shows coverage extending from 1.2m (4 ft) to 10.6m (35 ft) at different angles.

Top View: Depicts a 180-degree field of view. Major motion coverage extends up to 35 ft (10.6m), and minor motion up to 20 ft (6.1m). The sensor is designed for optimal performance in spaces up to 15' x 12'.

Adjusting the Sensor and Accessing Other Features

To access settings, remove the wall plate and then gently pull off the button cap.

Turning the Load ON (ON Mode):

The relay can be programmed for Auto ON or Manual ON. In either mode, the load can be turned ON or OFF using the up and down buttons.

• Manual ON: With DIP switch 1 ON, the occupant must press the Up button to turn the load ON. The sensor keeps the load ON until no motion is detected for the selected time delay (with a 30-second re-trigger delay). If occupancy is detected during the delay, the sensor turns the load back ON. After the re-trigger delay, the Up button must be pressed again to turn ON the load.
• Auto ON: With DIP switch 1 OFF, the load turns ON and OFF automatically based on occupancy. There is a 5-second re-trigger delay. If the load is manually turned OFF, the Presentation Mode setting applies.

Time Delays:

The sensor keeps the load ON until no motion is detected for the selected time delay. Time delays (3, 5, 15, 30 minutes) are selected using DIP switches 2 and 3.

Setting both DIP switches to OFF enters Test Mode with a 10-second delay. Test Mode cancels after 10 minutes or when DIP switches are set differently. Moving both switches back to OFF re-triggers Test Mode.

Additional Programmable Features

DIP switches 6 through 9 allow access to additional features, selected via unique switch combinations. The red LED blinks in Setup Mode, and the green LED blinks to indicate the current value for the selected feature.

To change a setting, press and release the UP or DOWN buttons. Settings are saved when DIP switches are returned to OFF. The unit exits Setup Mode after 10 minutes if not manually exited.

Feature Descriptions:

• Alerts: Provides audible and/or visible alerts before load turn-off. Default: visible alert disabled, audio alert enabled.
• Walk-Through: Shortens time delay to reduce ON time after brief occupancy. If ON, load turns OFF 3 minutes after initial occupancy if no motion detected within 30 seconds. Default: OFF.
• PIR Sensitivity Adjustment: Automatically adjusts PIR to avoid false detections or allows manual selection (High/Low). Default: High. Low reduces sensitivity by ~50%.
• High and Low Trim: Adjusts maximum and minimum dimming amounts (6-10V for High, 0-4V for Low). Can be set to Manual Adjustment.
• Ramp Up and Fade Down Time: Adjusts time for dimming transitions (Ramp Up: 1, 2.5, 5, 10 sec; Fade Down: 2.5, 5, 15, 30 sec). These do not affect manual button adjustments.
• Light Level Adjustment: Sets a light level threshold for Auto ON mode. Standard mode uses a fixed threshold. Smart Light Level mode automatically adjusts the threshold based on occupant behavior.
• Power Loss Mode: Determines load state after power restoration (Keep Last State, Default To On, Default To Off). Default: Keep Last State.
• Presentation Mode: Holds lights OFF when manually turned OFF until no motion is detected for the time delay. Default: Enabled.
• Service Mode: Temporarily disables occupancy and light level functions. Buttons still control load ON/OFF.
• Preset On Level: Sets the dimming level for Auto ON occupancy detection (Last Non-Zero, 50%, 75%, 100%).
• Non-Dim Mode: Buttons function as simple ON/OFF switches without dimming. Default: OFF.
• Reset to Factory Default: Press and hold UP or DOWN for 5 seconds. Resets sensor and disables light level control.

DIP Switch Settings Summary

A table details DIP switch combinations for various features, including Time Delay, Exit Programming Mode, Visual Alert, Audio Alert, Walk-Thru, PIR Sensitivity, High Trim, Low Trim, Ramp Up Time, Fade Down Time, Light Level Adjust, Power Loss Mode, Presentation Mode, Service Mode, Preset On Level, Non-Dim Mode, and Reset to Default. It also indicates the corresponding Green LED blinks for each setting.

Troubleshooting

• Lights do not turn ON with motion (LED flashes): Check wire connections, especially Load. Verify correct ON Mode (DIP switch 1). Check if light level control is enabled (cover sensor lens).
• Lights do not turn ON with motion (LED does not flash): Press UP button to ensure correct lights turn ON. Verify Sensitivity is set to High. Check Line connection.
• Lights do not turn OFF: Allow for up to 30 min time delay. Test by setting switches 2 & 3 to OFF (Test Mode) and moving out of view. Ensure sensor is at least 6 ft (2m) from HVAC devices or heat sources.
• Sensing motion outside desired areas: Mask PIR sensor lens. Adjust PIR Sensitivity.
• Red LED is OFF and sensor features don't work: Check Service Mode setting (turn OFF if enabled). Check Time Delay function setting.

Cover Plates

WattStopper PW series wall switches fit behind standard decorator-style switch cover plates (not included). Units are available in White (-W), Light Almond (-LA), Gray (-G), Black (-B), Ivory (-I), and Red (-R).

Warranty Information

Wattstopper warrants products to be free of defects in materials and workmanship for five (5) years. No liability for consequential damages or costs of removal/installation.