Lutron Electronics Maestro MS-Z101 Series Application Note

Dimmer sensor application

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Maestro 0 –10 V- Dimmer Sensor Applications

This document serves as a supplement to the Maestro 0 –10 V- Dimmer Sensor Installation Guide for the following

model numbers:

• MS-Z101-XX: Occupancy / Vacancy Sensor

• MS-Z101-V-XX: Vacancy Sensor

Note: For performance specifications, including load ratings, see the Maestro 0 –10 V- Dimmer Sensor spec submittal

(Lutron P/N 369833) at www.lutron.com

Maestro 0 –10 V- Dimmer Sensor User Interface (shown without faceplate)

Programming / Indicator LEDs

Timeout button

Sensor Mode button

Sensor LED (behind lens)

pulses amber for PIR

detection during Test mode

TURN OFF POWER

ARRETEZ LE COURANT

Coopersburg, PA

DESCONECT LA CORRIENTE

800.523.9466

lutron.com

Mode

Occ

Lrn

Fixd

Vac

120 – 277 V~

50 / 60 Hz

8 A

Tap button (tap on/off)

Raise button

Alt

Alt button

Lower button

PIR

Med

PIR sensitivity button

Low

Min

PIR Lens

Application Note #536

October 2020

Customer Assistance: 1.844.LUTRON1

Revision D

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Page 1 Application Note #536 Revision D October 2020 Maestro 0 –10 V- Dimmer Sensor Applications This document serves as a supplement to the Maestro 0 –10 V- Dimmer Sensor Installation Guide for the following model numbers: • MS-Z101-XX: Occupancy / Vacancy Sensor •...
Page 2: Table Of Contents
Application Note #536 Contents Glossary ..................3 Sensor Coverage Area .
Page 3: Glossary
Application Note #536 Glossary Fade-to-On ... . The time required for the lights to reach the preset light level when the Tap button is pressed. Fade-to-Off ... . The time required for the lights to turn Off (from the On state) when the Tap button is pressed. Fine Motion .
Page 4: Sensor Coverage Area
Application Note #536 Sensor Coverage Area • The ability of the Dimmer Sensor to detect motion requires line-of-sight of room occupants. The Dimmer Sensor must have an unobstructed view of the room. • Hot objects and moving air currents can affect the performance of the Dimmer Sensor. For best performance, the Dimmer Sensor should be mounted at least 4 ft (1.2 m) away from HVAC vents and light bulbs.
Page 5: Settings Overview
Application Note #536 Settings Overview The Maestro 0 –10 V- Dimmer Sensor has TURN OFF POWER ARRETEZ LE COURANT many features that allow you to configure Coopersburg, PA DESCONECT LA CORRIENTE the unit to meet your individual needs. This 800.523.9466 lutron.com page includes all the button press shortcuts for modifying those features.
Page 6: Fade-To-On Rate
Application Note #536 Fade-to-On Rate Faster Fade-to-On rates are more practical; slower Fade-to-On rates are thought to be more elegant. If the light that is controlled by the dimmer is the first or only light that will be turned ON in a particular room, most people find it advantageous to use a faster Fade-to-On rate so that the room is immediately illuminated.
Page 7: Fade-To-Off Rate
Application Note #536 Fade-to-Off Rate A slower Fade-to-Off rate is suggested for rooms where the user wishes to leave while the lights are still providing illumination. Please be aware that dimming of the light may not be immediately noticeable for settings of 5 seconds or longer.
Page 8: High-End Trim
Application Note #536 High-End Trim High-end trim is adjustable from 6 –10.5 V. The maximum light output of connected fixtures can be decreased for energy savings in over-lit spaces. Changing the High-End Trim 1. Press and hold until the PIR lens flashes (about 7 seconds). 2.
Page 9: Low-End Trim
Application Note #536 Low-End Trim Low-end trim is adjustable from 0.6 – 2 V. Trimmable low-end can ensure a stable light level. Some fixtures will flicker or drop out if trimmed too low. Changing the Low-End Trim 1. Press and hold until the PIR lens flashes (about 7 seconds).
Page 10: Occupied Level
Application Note #536 Occupied Level A programmable setting that determines the light level to which the Dimmer Sensor will turn on once occupancy has been detected. Which do I want? • 100% will ensure that the lights are turned on to the brightest available level upon entering a room. If you want the most light possible upon entering a room, this is the best choice.
Page 11: Preset Level
Application Note #536 Preset Level When the Preset Level is set to a “locked” level, the Dimmer Sensor will turn On to the predetermined “locked” level with a single tap of Tap ( ) button. When the Preset Level is set to “unlocked,” a single tap of the Tap button will turn the Dimmer Sensor ON to the light level which it was adjusted to the last time the light was on.
Page 12: Off-While-Occupied
Application Note #536 Off-While-Occupied This setting determines how the sensor will respond when the lights are turned off, and the room remains occupied. Changing this setting will modify the behavior of all sensor modes, except for Vacancy mode. • Enabled: If the lights are manually turned off, the sensor will keep those lights off for as long as the room is occupied and the timeout has not expired.
Page 13: Pir Sensitivity
Application Note #536 PIR Sensitivity The PIR sensitivity of the sensor can be adjusted based on the expected level of activity in the room. The default setting is “High Sensitivity” which will perform best for most applications. Rarely, if the sensor is placed near external noise sources (e.g., heating and cooling vents), it may turn the lights On without occupancy.
Page 14: Selectable Dimming Curve
Application Note #536 Selectable Dimming Curve Our eyes do not perceive light in a linear fashion; the eye is more sensitive to changes in low intensities of light than in high. Square Law dimming provides a smoother, larger dimming range. To achieve square law dimming, the control and the fixtures must be configured properly as a pair.
Page 15: Timeout
Application Note #536 Timeout Timeout is the time after which the lights will go out after the last motion is detected. The timeout can be adjusted to 1, 5, 15, or 30 minutes. Which do I want? • The ideal Timeout for an application may vary depending on the size of the room in which the unit is installed. •...
Page 16: Walk-Thru Mode
Application Note #536 Walk-Thru Mode Walk-Thru Mode is a setting that allows lights set with a long timeout to shut off after a short duration when the space is occupied only momentarily. After initial occupancy, this mode allows the sensor to turn the lights in the room Off if the space is occupied for a very brief amount of time (less than 3 minutes).
Page 17: Sensor Mode
Application Note #536 Sensor Mode The automatic functionality of the sensor can be adjusted to change how the lights respond upon initial occupancy. All sensor modes will turn the lights Off when no motion has been detected and the timeout has expired. •...
Page 18: Fixed Ald Light Level
Application Note #536 Fixed ALD Light Level When a unit is set to “Occupancy with Fixed ALD” mode, the light level at which the lights will remain Off when the space is occupied can be adjusted. If the light level in the room is higher than the level set by the user, the lights will remain Off. If the light level in the room is lower than the light level set, the lights will turn On.
Page 19: Learning Ambient Light Detect (Ald)
Application Note #536 Learning Ambient Light Detect (ALD) How it Works FAQs Ambient Light Detect (ALD) is a feature that allows you If I press a button AFTER 5 seconds of being in a room, to maximize savings by keeping lights Off when there will my unit “learn”...
Page 20: Test Mode
Application Note #536 Test Mode Test Mode is a short timeout (less than 15 seconds) that will test the coverage area of the sensor with the current settings. Enabling Test Mode 1. Press and hold until the PIR lens flashes (about 7 seconds). TURN OFF POWER ARRETEZ LE COURANT Coopersburg, PA...
Page 21: Wiring Installations With The Maestro 0 - 10 V- Dimmer Sensor
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor In order to function, connect the green-sleeved wire to ground only in retrofit and replacement applications. When a neutral connection is available, remove the green sleeve and connect the white wire to neutral. If neither wire is present, consult a licensed electrician.
Page 22: 3-Way Installation With Standard Mechanical Switch
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) 3-Way Installation with Standard Mechanical Switch With Neutral Blue TURN OFF POWER ARRETEZ LE COURANT Coopersburg, PA DESCONECT LA CORRIENTE 800.523.9466 Line / Hot Black Black lutron.com 120 –...
Page 23: 3-Way Retrofit Installation
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) 3-Way Retrofit Installation For retrofit 3-way installations, the mechanical switch needs to be rewired after wiring the Dimmer Sensor (see the diagram below). Otherwise, the 3-way installation will not work as expected. Single-pole mechanical switches may also be used in a 3-way installation.
Page 24: 120 V~ Multi-Location Installation With Maestro Accessory Switches
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) 120 V~ Multi-Location Installation with Maestro Accessory Switches If the 0 –10 V- Dimmer Sensor is first installed with a traditional 3-way mechanical switch and the mechanical switch is later replaced with a Maestro Accessory Switch, the 0 –10 V- Dimmer Sensor will need to be returned to factory default settings in order to function correctly (refer to instructions on page 20).
Page 25: 220 - 277 V~ Multi-Location Installation With Maestro Accessory Switches
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) 220 – 277 V~ Multi-Location Installation with Maestro Accessory Switches If the 0 –10 V- Dimmer Sensor is first installed with a traditional 3-way mechanical switch and the mechanical switch is later replaced with a Maestro Accessory Switch, the 0 –10 V- Dimmer Sensor will need to be returned to factory default settings in order to function correctly (refer to instructions on page 20).
Page 26: Common Applications And Questions
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) Common Applications and Questions Sink vs. Source MS-Z101 is a “sink-only” device (see www.lutron.com/TechnicalDocumentLibrary/048442.pdf for more information). This TURN OFF POWER type of device requires the ballast or driver to supply the power necessary to drive the 0 –10 V- control wires. ARRETEZ LE COURANT Coopersburg, PA DESCONECT LA CORRIENTE...
Page 27 Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) With Neutral TURN OFF POWER ARRETEZ LE COURANT Coopersburg, PA DESCONECT LA CORRIENTE 800.523.9466 Line / Hot Black Black lutron.com 120 – 277 V~ Pink* (–) White Blue ** 50 / 60 Hz...
Page 28: Energy Codes Requiring Daylighting
Application Note #536 Wiring Installations with the Maestro 0 – 10 V- Dimmer Sensor (continued) Energy Codes Requiring Daylighting (e.g., ASHRAE 90.1) Certain codes require the presence of daylighting sensing/control. MS-Z101 contains ambient light detection, which is not a solution to ASHRAE 90.1. The two options below will help the installer comply with ASHRAE 90.1 and other energy codes requiring daylighting: •...
Page 29: Nema 410 Inrush Current
Application Note #536 NEMA 410 Inrush Current MS-Z101 is intended to work with electronic ballasts and drivers that comply with IEC 60629 Annex E.2. These of load typically exhibit a high amplitude (short duration) inrush current the moment power is applied. That inrush current can be many times larger than the steady state current.
Page 30: Troubleshooting
Application Note #536 Troubleshooting Symptom Possible Cause Likely Solution • After installation, Dimmer will not be active for first 10 seconds Wait for longer than 10 seconds. unit does not after installation. respond to button Check wiring: ground or neutral must be •...
Page 31 Application Note #536 Troubleshooting (continued) Symptom Possible Cause Likely Solution Lights turn ON in Lights can turn ON in 15 second grace Grace period is intended to allow user to move after lights go OFF, Vacancy mode. period following Timeout. if you want lights to come back ON. If you want to check that unit is functioning properly, wait 30 seconds AFTER Timeout has expired before re-entering the room to verify that lights do NOT turn ON.
Page 32: Contact Information
Application Note #536 )Lutron, Lutron, Maestro, Pico, PowPak, and Radio Powr Savr are trademarks or registered trademarks of Lutron Electronics Co., Inc. in the US and/or other countries. Contact Information WORLD HEADQUARTERS EUROPEAN HEADQUARTERS ASIAN HEADQUARTERS United Kingdom Singapore Lutron Electronics Co., Inc.

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Maestro ms-z101-v series