Lutron Electronics C-L

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Summary

Explanation of Sensor Features

Timeout

The approximate time in minutes after which the lights will go out after the last motion is detected.

Sensor Sensitivity

The sensitivity of the sensor can be adjusted based on the expected level of activity in the room.

Auto-On Feature

The automatic functionality of the sensor can be adjusted to control how the lights respond upon initial occupancy.

Dimming Features Overview

Preset Light Level

Allows the user to set a specific light level that the dimmer will turn on to.

Manual Fade ON Time

Controls how quickly the lights fade up when the dimmer is turned ON.

Manual Fade OFF Time

Controls how quickly the lights fade down when the dimmer is turned OFF.

Delayed Fade to OFF

Delays the time between pressing the Tap button and the lights beginning the fade to OFF process.

Indicator Lights Control

Allows for enabling or disabling the indicator lights when the dimmer is turned OFF.

Low-End Trim Adjustment

Ability to change the lowest achievable light level to which the dimmer can be adjusted.

High-End Trim Adjustment

Ability to change the highest achievable light level to which the dimmer can be adjusted.

Sensor Coverage Area

Details the sensor's detection range and beam patterns.

Sensor Dimmer Programming Mode

Entering Programming Mode

Step-by-step instructions to enter the dimmer's programming mode.

Timeout Duration Selection

Guide to selecting and setting the desired timeout duration for the sensor.

Advanced Programming Mode

Entering Advanced Programming Options

Instructions to navigate and select specific programming options within APM.

Preset Light Level Programming

SETTINGS: Preset Light Level

Details the two settings: Locked Preset and Unlocked Preset for light level.

DIRECTIONS: Selecting Locked Preset

Step-by-step guide to program a Locked Preset light level.

Manual Fade ON Time Programming

DIRECTIONS: Selecting a Manual Fade ON Time

Guide to choosing and setting the desired manual fade ON time for light transitions.

Manual Fade OFF Time Programming

DIRECTIONS: Selecting a Manual Fade OFF Time

Guide to choosing and setting the desired manual fade OFF time for light transitions.

Delayed Fade to OFF Programming

DIRECTIONS: Setting Delayed Fade to OFF

Step-by-step instructions to set the desired delayed fade to OFF time for lights.

Indicator Lights Control Programming

DIRECTIONS: Enable;Disable Indicator Lights

Guide to enabling or disabling the nightlight mode for indicator lights on the dimmer.

Low-End Trim Programming

DIRECTIONS: Setting Low-End Trim

Step-by-step instructions to set the desired Low-End Trim level for optimal bulb performance.

High-End Trim Programming

DIRECTIONS: Setting High-End Trim

Step-by-step instructions to set the desired High-End Trim level for maximum light output.

Restoring Default Settings

Restore Factory Defaults Procedure

Step-by-step instructions to return the dimmer to its original factory settings.

Additional Wiring Diagrams

Two-Location Applications Wiring

Details wiring for controlling lights from two locations using a mechanical switch.

Two-Location Application Shortcut

Summary

Explanation of Sensor Features

Timeout

The approximate time in minutes after which the lights will go out after the last motion is detected.

Sensor Sensitivity

The sensitivity of the sensor can be adjusted based on the expected level of activity in the room.

Auto-On Feature

The automatic functionality of the sensor can be adjusted to control how the lights respond upon initial occupancy.

Dimming Features Overview

Preset Light Level

Allows the user to set a specific light level that the dimmer will turn on to.

Manual Fade ON Time

Controls how quickly the lights fade up when the dimmer is turned ON.

Manual Fade OFF Time

Controls how quickly the lights fade down when the dimmer is turned OFF.

Delayed Fade to OFF

Delays the time between pressing the Tap button and the lights beginning the fade to OFF process.

Indicator Lights Control

Allows for enabling or disabling the indicator lights when the dimmer is turned OFF.

Low-End Trim Adjustment

Ability to change the lowest achievable light level to which the dimmer can be adjusted.

High-End Trim Adjustment

Ability to change the highest achievable light level to which the dimmer can be adjusted.

Sensor Coverage Area

Details the sensor's detection range and beam patterns.

Sensor Dimmer Programming Mode

Entering Programming Mode

Step-by-step instructions to enter the dimmer's programming mode.

Timeout Duration Selection

Guide to selecting and setting the desired timeout duration for the sensor.

Advanced Programming Mode

Entering Advanced Programming Options

Instructions to navigate and select specific programming options within APM.

Preset Light Level Programming

SETTINGS: Preset Light Level

Details the two settings: Locked Preset and Unlocked Preset for light level.

DIRECTIONS: Selecting Locked Preset

Step-by-step guide to program a Locked Preset light level.

Manual Fade ON Time Programming

DIRECTIONS: Selecting a Manual Fade ON Time

Guide to choosing and setting the desired manual fade ON time for light transitions.

Manual Fade OFF Time Programming

DIRECTIONS: Selecting a Manual Fade OFF Time

Guide to choosing and setting the desired manual fade OFF time for light transitions.

Delayed Fade to OFF Programming

DIRECTIONS: Setting Delayed Fade to OFF

Step-by-step instructions to set the desired delayed fade to OFF time for lights.

Indicator Lights Control Programming

DIRECTIONS: Enable;Disable Indicator Lights

Guide to enabling or disabling the nightlight mode for indicator lights on the dimmer.

Low-End Trim Programming

DIRECTIONS: Setting Low-End Trim

Step-by-step instructions to set the desired Low-End Trim level for optimal bulb performance.

High-End Trim Programming

DIRECTIONS: Setting High-End Trim

Step-by-step instructions to set the desired High-End Trim level for maximum light output.

Restoring Default Settings

Restore Factory Defaults Procedure

Step-by-step instructions to return the dimmer to its original factory settings.

Additional Wiring Diagrams

Two-Location Applications Wiring

Details wiring for controlling lights from two locations using a mechanical switch.

Two-Location Application Shortcut

Overview

Function Description
Usage Features
Sensor Dimmer Programming Mode (Main Sensor Menu)
Advanced Programming Mode (APM)
Programming Interface
Two-Location Applications
Maintenance Features

The Lutron Maestro Occupancy Sensor C•L Dimmer is a sophisticated lighting control device designed to enhance convenience and energy efficiency in residential and commercial spaces. This dimmer combines occupancy sensing capabilities with advanced dimming features, allowing for automated and customizable lighting experiences. It is available in models MSCL-OP153M and MSCL-OP153MH.

Function Description

The core function of the Maestro Occupancy Sensor C•L Dimmer is to automatically control lights based on occupancy, while also providing manual dimming control. It detects motion within a room to turn lights on when someone enters and off when the room is vacated. This automation helps save energy by ensuring lights are only on when needed.

The dimmer offers an "Auto-On Feature" with four settings:

Enabled: Lights automatically turn on when occupancy is detected. After manual turn-off, the auto-on feature is disabled for 25 seconds, allowing occupants to exit larger rooms.
Disabled (Vacancy Mode): Lights do not automatically turn on but will automatically turn off after vacancy. Manual turn-on is required via the Tap button. This mode is ideal for bedrooms or spaces where automatic turn-on is not desired.
Ambient Light Detect (ALD) Mode: Lights turn on only when occupancy is detected AND ambient light levels are too low. The sensor "learns" preferred settings over time based on user interaction (pressing the Tap button within 5 seconds of entering). This mode maximizes energy savings by leveraging natural light.
Off While Occupied (OWO) Mode: Lights automatically turn on when occupancy is detected. If lights are manually turned off, the sensor keeps them off as long as the room remains occupied.

The "Occupied Level" feature allows users to set the light level at which the sensor turns on when motion is detected. Options include:

100%: Lights always turn on to full brightness.
50%: Lights always turn on to 50% brightness.
Preset: Lights turn on to the last selected light level. If a preset level is locked in Advanced Programming Mode, lights will come on to that locked level.

Usage Features

The Maestro Occupancy Sensor C•L Dimmer offers extensive customization through its "Sensor Dimmer Programming Mode" and "Advanced Programming Mode."

Sensor Dimmer Programming Mode (Main Sensor Menu):

This mode allows users to adjust fundamental sensor behaviors:

Timeout: The approximate time (1, 3, 5, 15, or 30 minutes) after which lights turn off following the last detected motion. A "Test Mode" (less than 15 seconds) is available for coverage testing.
Sensitivity: Adjusts how easily the sensor detects motion. "High Sensitivity" (default) detects slight motions, suitable for most applications. "Low Sensitivity" is for areas with major motions or to prevent false triggers from external sources like HVAC vents.
Auto-On: Configures the automatic turn-on behavior as described above (Enabled, Disabled, ALD, OWO).
Occupied Level: Sets the initial light level when occupancy is detected (100%, 50%, or Preset).

Advanced Programming Mode (APM):

APM provides granular control over dimming characteristics and other advanced settings:

Preset Light Level: Allows users to "Lock" a preferred light level so that a single tap always brings lights to this level. Alternatively, "Unlocked Preset" makes the dimmer turn on to the last used light level. A double tap always brings lights to full intensity.
Manual Fade ON Time: Controls how quickly lights fade up from OFF to maximum output when manually turned ON. Settings range from 0.75 seconds (default) to 15 seconds. This applies only to manual actuation; occupancy-based fade times are fixed.
Manual Fade OFF Time: Controls how quickly lights fade down from maximum output to OFF when manually turned OFF. Settings range from 0.75 seconds to 15 seconds, with a default of 2.5 seconds. This also applies only to manual actuation.
Delayed Fade to OFF: Introduces a delay (10 to 70 seconds, default 30 seconds) between pressing the Tap button (manual OFF) and when the dimming sequence actually begins. This is useful in large rooms where the light control is opposite the exit.
Enable/Disable Indicator Lights: Controls whether the dimmer's indicator lights remain on at a dim glow ("nightlight mode") when the dimmer is OFF. Disabling this can improve compatibility with certain CFL and LED bulbs and save energy.
Low-End Trim: Adjusts the lowest dimmable light level to eliminate flickering or strobing, especially with LED and CFL bulbs. The default setting is IL3. A shortcut method is available for quick adjustments outside of APM.
High-End Trim: Adjusts the highest achievable light level, allowing users to fine-tune the maximum brightness. The default setting is IL7.

Programming Interface:

Programming is done directly on the dimmer using the Tap, Raise, and Lower buttons in conjunction with the indicator lights (IL1-IL7). The indicator lights blink to guide the user through menu selections and setting adjustments. The FASST (Front Accessible Service Switch) is used to enter programming modes.

Two-Location Applications:

The dimmer supports two-location control using either a Lutron Companion Dimmer or an existing 3-way mechanical switch. Specific wiring and programming adjustments are required for mechanical switches to ensure proper functionality.

Maintenance Features

The Maestro Occupancy Sensor C•L Dimmer incorporates features that simplify maintenance and ensure long-term performance:

FASST (Front Accessible Service Switch): This pull-out switch allows for temporary power disconnection at the light fixture, primarily for routine bulb replacement. For any other procedure, power MUST be disconnected at the main electrical panel.
Restoring Default Settings: The dimmer can be easily reset to its original factory settings. This is a valuable troubleshooting tool and allows users to experiment with different settings without permanent changes. The reset procedure involves pulling the FASST switch, holding the Tap button, and pushing the FASST switch back in for a specific duration. Default settings include Unlocked Preset, 0.75 seconds Manual Fade ON Time, 2.5 seconds Manual Fade OFF Time, 30 seconds Delayed Fade to OFF, Enabled Indicator Lights, IL2 Low-End Trim, and IL7 High-End Trim.
Troubleshooting Guide: The manual provides a comprehensive troubleshooting section that lists common symptoms, possible causes (e.g., incorrect wiring, unapproved bulbs, sensor mode settings), and corresponding solutions. This helps users diagnose and resolve issues efficiently.
Bulb Compatibility: The device is designed to work with a variety of bulb types, including incandescent, halogen, CFL, and LED. The Low-End Trim and High-End Trim features are crucial for optimizing performance and preventing flickering with energy-efficient bulbs. Users are advised to consult Lutron's approved bulb list for best results.