ETC Echoflex ELED2-BU User manual

Part Number: 8189M2411 Rev.B
Released: 2023-07
Tunable White Dimming
Controller
Models: ELED2-BU and ELED2H-AU
Configuration Guide

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Table of Contents
Table of Contents i
Introduction 1
Document Conventions 2
Help from Technical Services 2
Control Features 3
Dim-to-Warm 3
Explicit Color Control 3
Automated Color Tuning 3
Characterized Color Tuning 3
Configuration Options 4
Simple Tap Instructions 4
Radio Communications 4
Repeater Function 4
Status Message 5
Dimming Intensity 5
Tunable White Control 5
Near-Cross Technology 5
Switch Operation 5
Multi-Scene Station Buttons 6
Color Tuning Functions 6
Timed Switches 6
Occupancy-Based Lighting Applications 7
Occupancy Sensor Auto-OFFTimer 7
Save State 7

Grace Timer 7
Photo Inhibit 8
Dual Technology Occupancy Sensors 8
Occupancy Sensors and Partial-ON 8
Occupancy Sensors and Partial-OFF 8
Occupancy Sensors with Switches 8
Open-Plan Shared Occupancy 9
Create a Shared Occupancy Space 9
Hospitality Applications 10
Daylight Harvesting Applications 11
Daylighting Control Override 11
Closed Loop Control 11
Open Loop Control 13
Controller Presets 14
User Interface 15
Power LED and Learn LED 15
Learn Button 15
Remote Linking Solution 16
Clear Button 16
LEDDisplay 16
Blink Indications 17
Red: Linking Channel 1 (Intensity) 17
Green: Linking Channel 2 (Color Temperature) 17
Blue: Linking Channel 3 (CCT Set Point) 17
ii Tunable White Dimming Controller Configuration Guide

Linking Activities 17
Compliance 18
FCC Compliance 18
ISED Compliance 18
Conformité ISDE 18
Table of Contents iii

iv Tunable White Dimming Controller Configuration Guide

Introduction 1
Introduction
The Tunable White Dimming Controller is a wireless lighting controller designed for
spaces/areas where intensity and correlated color temperature (CCT) control are required. The
ELED2 controller creates a range of desired lighting effects based on occupancy state, manual
switch action, ambient light levels, and timeclock or gateway commands for a single LED
fixture or entire zone.
ELED2H-AU
model shown
The ELED2(H) is available in two voltages: 120–277 V and
240–347 V. Its integral relay and two robust 0–10 V
outputs allow the ELED2(H) to control dimmable light and
tunable color temperature levels. Outputs are for
connecting zones or fixtures to provide the intensity and
CCT control. Output 1 is identified by the violet/red stripe
wire, and output 2 is identified by the violet/green stripe
wire.
Three linking channels are for assigning remote devices to
affect the controller's operation. The first linking channel
is for devices affecting intensity, the second channel is for
devices affecting the CCT. The third channel is for
assigning Open Loop CCT set points. The channels are identified by different LED colors that
display when the controller is in link mode, see Blink Indications on page17.
For scenarios where only occupancy sensors are linked to the controller, built-in control begins
by automating lights ON and OFF using occupancy detection. Daylighting control of the fixture
intensity can be quickly setup in either an open or closed loop scenario. The factory defaults
defined for the ELED2(H) are energy code compliant, including occupancy Partial-ON and
Partial-OFF requirements.
Echoflex ELED products include preset functionality that allows spaces to be lit with lighting
scenes. Presets can be activated from scene stations, wireless timeclocks, or gateways and
include values for intensity and color temperature. The lockout feature allows timeclocks to
schedule a controller’s response to specific sensors or stations.
Note: For lighting controls specific to horticultural applications, Echoflex also has a
Bicolor Luminiaire Controller, model ELED2-BCL. This controller uses the same method
to modulate light intensity and blend warm and cool LEDs to provide desired CCT
output. Learn more about the ELED2-BCL at echoflexsolutions.com.

2 Tunable White Dimming Controller Configuration Guide
Document Conventions
Echoflex's user documentation is designed for print or electronic use. Cross-references
highlighted in this document are links to the referenced section of the guide.
Configuration parameters are emphasized in italics. Switch actions (ON/OFF) and dimmer
events (lights ON/OFF) are emphasized in ALL CAPS. Buttons are emphasized in [Bold Bracket].
This document uses the following conventions to draw your attention to important
information.
Note: Notes are helpful hints and information that is supplemental to the main text.
All Echoflex documents are available for free download from our website:
echoflexsolutions.com. Please email comments about this manual to:
[e-mail].
Help from Technical Services
If you are having difficulties that are not addressed by this document, contact Echoflex support
at [e-mail] or the main website at echoflexsolutions.com. If none of
these resources are sufficient, contact Technical Services directly at the office identified below.
When calling for help, take these steps first:
• Prepare a detailed description of the problem
• Go near the equipment for troubleshooting
• Find your notification number if you have called in previously
Technical Services
3031 Pleasant View Road
Middleton, WI 53562
800-775-4382 (USA, toll-free)
[phone]
[e-mail]

Control Features 3
Control Features
Dim-to-Warm
Dim-to-Warm operates if at least one switch station is linked to the intensity channel and
nothing is linked to the color temperature channel. Color temperature moves according to the
change in light intensity. An increase in intensity also moves color temperature to cooler. A
decrease in intensity moves color temperature to warmer. Dim-to-warm mode operates with
occupancy sensors, daylight sensors, regular switches, and gateways linked to the intensity
channel.
Explicit Color Control
With a switch station linked to the color temperature channel, Explicit Color Control provides
manual control over a fixture's color temperature. By pressing the paddle on the station, you
can set a color level and modulate output as required. Press and hold ON increases color
temperature to cooler; Press and hold OFF decreases color temperature to warmer. A quick tap
on the button bumps color temperature up or down incrementally. A gateway command can
also be linked to the color temperature channel allowing other devices to control the fixture's
color temperature.
Automated Color Tuning
Automated Color Tuning requires a color temperature sensor like the Echoflex TAP-41 photo
sensor linked to the color temperature channel. The ELED2(H) compares its CCT set point to
the value from the space provided by the sensor and increases the fixture's color temperature
to the set point.
Example: The CCT set point is 3500 K and the sensor reports a value of 3200 K.
The controller will adjust the CCT output driving the fixture's output towards the
desired set point.
Automated Color Tuning can also use a dynamic CCT set point input linked to a gateway
command or outdoor color temperature sensor like the Echoflex FLS-41 sensor to set the
desired color temperature within the space and track outdoor color temperature values.
Characterized Color Tuning
Characterized Color Tuning modulates the color temperature channel based on the set point
value. As in the Automated Tuning Operation, a gateway command or outdoor color
temperature sensor can be linked to the CCT set point channel and the output will adjust to
this value based on the fixture's defined specifications. This operation does require the
fixture's characterized specifications for the 0–10 V channel be defined with the controller’s
configuration.
Example: A fixture is used that maps a range of 3200–6000 K across the 1–10 V
range. These values are pre-commissioned with the ELED2-BU or ELED2H-AU at the
factory. The color tunable output modulates based on the value provided by a linked
FLS-41 sensor on the set point value.

4 Tunable White Dimming Controller Configuration Guide
Configuration Options
The ELED2(H) is a complete stand-alone lighting controller requiring only remote linked
devices to provide input on light level, color temperature, occupancy state and switch
operation.
In addition to the tunable white color operations, the controller will perform the following
common lighting control applications:
• 0–10 V dimming of LED fixtures
• Vacancy Sensor Mode: partial OFF or fully OFF
• Occupancy Sensor Mode: partial ON or fully ON
• Wall Switch Station: ON/OFF, manual adjustment of dim level and timed switch
• Daylight Harvesting: open loop or closed loop
• Demand Response: sets a temporary hard limit to the maximum dimming output
• Scheduling via interfaces, timeclocks, or gateways
• Building Systems support with gateway commands
This document describes the controller’s features and explains how to use and configure them
with Simple Tap. Some features can only be configured using Garibaldi Pro software.
Note: For information about Garibaldi Pro software or pre-commissioning services
that provide complete system solutions (linked and configured), contact Echoflex.
Garibaldi Pro software is available for download from the Echoflex website at
echoflexsolutions.com.
Simple Tap Instructions
Simple Tap is a manual method of changing individual settings one at a time. There are no
tools required, simply use your finger to activate the sensors and standard switches linked to
the controller. The tap in Simple Tap means a quick press on a sensor's [Teach] button and/or a
switch’s ON/OFF.
Note: Echoflex scene stations cannot be used to configure settings with Simple Tap.
If the sensor is linked to multiple controllers and you do not want to make changes to all, turn
off the controllers lights/loads to ignore the Simple Tap changes.
Radio Communications
The ELED2(H) controller is equipped with a 902 MHz radio capable of transmitting and
receiving wireless messages. The controller supports single-hop and dual-hop message
repeating and controller status broadcast.
Repeater Function
The repeater function repeats received messages if:
• The message has not been repeated previously
• In the case of dual-hop repeating, the messages have been repeated previously only once
If single-hop or dual-hop repeating is needed, the repeater function can be enabled/disabled
using Simple Tap instructions.

Switch Operation 5
1. Press and hold the [C lear] button on the controller.
2. Tap the [Learn] button:
• Once to disable repeating
• Twice to enable single-hop repeating
• Three times to enable dual-hop repeating
3. Release the [Clear] button. The Power and Learn LEDs blink the corresponding number of
[Learn] button presses.
Status Message
The controller can broadcast a message per EEP: A5-11-01 Status Feedback Message. A
message broadcasts every 100 seconds. The status message can be enabled/disabled using
Simple Tap instructions.
1. Press and hold the [Learn] button on the controller.
2. Tap the [Clear] button once to disable, twice to enable.
3. Release the [Learn] button. The Power and Learn LEDs blink the corresponding number
of [Clear] button presses.
Dimming Intensity
The controller's dimming output provides linear, proportional dimming control of a dimming
driver or ballast.
•Output maximum level - the high level trim of the dimming output, set to 100% by
default
•Output minimum level - the low level trim of the dimming output, set to 10% by default
Garibaldi Pro software is required to configure the maximum and minimum levels and to
disable dimming output for immediate control.
Tunable White Control
The controller provides linear, proportional control of a fixture's tunable white output. The
maximum and minimum CCT level of the fixture can be saved in the controller's configuration
settings. The maximum and minimum levels of the output can be configured using Garibaldi
Pro software.
Near-Cross Technology
The controller monitors the AC voltage waveform to prevent carbon build-up on contacts and
ensure long relay life. The relay will open or close only when the waveform is close to zero.
Switch Operation
The controller operates with single, dual-paddle wall, wave, and hand-held Echoflex switches
as well as button station transmitters including the Multi-Button Interface Switch Station
(MBI).Garibaldi Pro software is required to configure all fade control settings.
• Press [ON] to fade the lights to the last manually set dimming level.
• Double-press [ON] to quickly fade the lights to the output maximum level.
• Press [OFF] to fade the lights to the output minimum level and then turn lights off.
• Double-press [OFF] to quickly fade and turn the lights off.
Echoflex switches can also be used as dimmers when dimming output is enabled.

6 Tunable White Dimming Controller Configuration Guide
• Press and hold [ON] to fade to the maximum dimming level.
• Press and hold [OFF] to fade to the minimum dimming level.
If a photo sensor is linked to the dimming channel it will have control priority over manually
dimming the output towards the maximum output value.
Multi-Scene Station Buttons
The layout of buttons for the Multi-Scene Station (MSS) differs according to the MSS model.
Buttons have the following effects when they are included in a model's layout.
•[ON] turns lights on and fades to the last manually set dimming level.
•[OFF]fades lights to the minimum dimming level and then turns them off.
•[COOL LIGHT] adjusts light temperature to cooler level.
•[WARM LIGHT] adjusts light temperature to warmer level.
•[Up Arrow] fades lights to maximum dimming level.
•[Down Arrow] fades lights to minimum dimming level.
•[SCENE X] recalls a configured scene setting.
Color Tuning Functions
If no switch station or color temperature sensor is linked to the color temperature channel, the
dimming switch will also modulate the fixture's tunable white output. See Dim-to-Warm on
page 1.
Linking a switch to the color temperature channel will provide manual control over the
fixture's tunable white output. Pressing ON or OFF will fade the tunable white temperature up
or down. A quick press will bump the output value a small amount. See Explicit Color Control
on page 1. When the tunable white output has been manually adjusted using a linked switch,
this value will be recalled upon a ON event.
Timed Switches
The controller can be configured to make any linked wall switch station into a timed switch.
Switching the lights ON starts the countdown timer for the configured period. One minute
before the timer expires and the lights turn off, the lights blink once as a warning (flickwarn).
Switching the lights ON at anytime resets the timer. Switching the lights OFF clears the timer.
Garibaldi Pro software is required to configure the period for a timed switch. Each channel can
be configured with it’s own timer period.

Occupancy-Based Lighting Applications 7
Occupancy-Based Lighting Applications
When occupancy sensors linked to the controller do not detect motion, they send a vacancy
message to the controller. After the occupancy Auto-OFF timer expires, the controller turns
the lights OFF or fades to a preset level. For information about coordinated control of a space,
see Open-Plan Shared Occupancy on page 9.
Occupancy Sensor Auto-OFFTimer
The occupancy Auto-OFF timer is set to 15 minutes by default. The value can be changed using
Simple Tap. Dual Tech sensors also have a built-in independent occupancy timer Auto-OFF. To
use the occupancy timer on the sensor, not the controller, set the controller’s occupancy timer
to zero seconds.
To set the controller’s occupancy Auto-OFF timer value:
1. Turn the light ON.
2. Tap the [Teach] button on the sensor three times to edit the timer period, or to set it to
zero seconds. The light ramps up to full ON and then dims to OFF to acknowledge the
input.
Taps Occupancy Sensor Timer Light Response
3 taps 0 seconds 1 blink
3. Continue to step 4 below to set minutes for the timer.
4. Tap the [Teach] button the number of times indicated in the table below to set the timer
period. The light responds a number of times to confirm the change and then returns to
normal operation.
Taps Occupancy Sensor Timer Light Response
1 tap 5 minutes 2 blinks
2 taps 10 minutes 3 blinks
3 taps 15 minutes 4 blinks
4 taps 20 minutes 5 blinks
5 taps 25 minutes 6 blinks
Save State
The controller saves its current operating state every ten minutes so when power is cycled, it
returns to the last saved values. The save state function can be overridden with a value used to
recall a particular dimming output value after a power cycle (BU and AU models only).
Garibaldi Pro software is required to configure overrides.
Grace Timer
The occupancy sensor grace timer is a short period of time during which the controller returns
the lights to the previous if triggered by motion, or audio in the case of Dual Tech sensors. The
grace timer starts counting down after the occupancy Auto-OFF timer has expired, providing a
time period for an undetected occupant to signal that the space is occupied. Garibaldi Pro
software is required to configure the grace timer. The default is 30 seconds.

8 Tunable White Dimming Controller Configuration Guide
Photo Inhibit
The photo inhibit feature requires a linked photo sensor and an occupancy sensor with
Partial-ON enabled. See Occupancy Sensors and Partial-ON below. When photo inhibit is
enabled, the Partial-ON feature is ignored when the natural light level measured by the photo
sensor is above the lights ON set point. The photo inhibit feature does not turn lights OFF if
the light is already ON. Garibaldi Pro software is required to configure the dimming to OFF set
point.
Photo Inhibit Operation:
• Light level is < lights ON set point – the lights turn ON when motion is detected.
• Light level is > lights ON set point – the lights do not turn ON when motion is detected.
• Lights are ON and the light level increases past the lights ON set point – the lights stay
ON.
• Lights are OFF and the light level decreases past the lights ON set point – the lights turn
ON when motion is detected and increase to the dimming level defined in the Partial-ON
setting.
Dual Technology Occupancy Sensors
Dual Tech sensors have built-in occupancy timers that manage the transition from occupied to
vacant state. To allow the Dual Tech sensor to control the vacancy action, the controller’s
occupancy sensor Auto-OFF timer parameter should be set to 0 seconds. See Occupancy
Sensor Auto-OFFTimer on the previous page.
Occupancy Sensors and Partial-ON
If only occupancy sensors are linked to the controller, the sensors automate the lights both ON
and OFF. The dimming output for ON adjusts to the occupancy Partial-ON value. The default
value is 100%. It can be changed using Simple Tap.
To set the Partial-ON value and enable/disable automatic Partial-ON:
1. Use a linked switch with the light ON and dim to the target Partial-ON value.
2. Press the [Teach] button on the sensor, and then do one of the following:
• Press the switch ON four times to enable Partial-ON.
• Press the switch ON three times followed by one OFF to disable Partial-ON.
Occupancy Sensors and Partial-OFF
If the application requires the lights to remain ON during vacant periods but at a dimmed level,
set the vacancy Partial-OFF value using Simple Tap. The default value is 20%.
To set the Partial-OFF value and enable/disable automatic Partial-OFF:
1. Use a linked switch with the light ON and dim to the target Partial-OFF value.
2. Press the [Teach] button on the sensor, and then do one of the following:
• Click the switch OFF three times followed by one ON to enable Partial-OFF.
• Click the switch OFF four times to disable Partial-OFF.
Occupancy Sensors with Switches
If switches and sensors are linked to the controller, Vacancy Sensor Mode (Manual-ON, Auto-
OFF) is active. The controller can be configured to turn the lights ON immediately when a
sensor detects motion (Partial-ON). When a switch is pressed ON or OFF, the occupancy
sensor's Auto-OFF timer resets the state to occupied, which allows the lights to stay OFF when
they are switched OFF (for example, a slide show presentation). See Occupancy Sensors and
Partial-ON above.

Occupancy-Based Lighting Applications 9
Open-Plan Shared Occupancy
The open-plan shared occupancy feature provides energy saving control over large open
spaces that have been segmented into zones to comply with local energy code requirements. It
allows connected lighting controllers to share the occupancy state of the zone they control.
Only after all the controllers in the space report a vacant state are the lights turned off at the
same time.
All Echoflex controllers support open-plan shared occupancy functionality to comply with
current energy savings codes.
Note: Garibaldi Pro software is the ideal tool to set up your project and configure
settings, or even to make edits if your project has been pre-commissioned. Garibaldi
Pro is available for download at echoflexsolutions.com.
There is no limit to the number of controllers that are connected to a shared occupancy, but
each controller must be within radio range of at least one other controller to be able to send
and respond to occupancy state messages.
A shared occupancy timer starts when a controller transitions from an occupied to a vacant
state. Controllers with the same shared occupancy ID that remain occupied will reset the
shared occupancy timer of any controller reporting vacancy within the ID group. The vacant
controllers will remain at the Partial-OFF value until all controllers in the group report vacancy.
Example: When one controller reports a vacant state, the lighting transitions to
Partial-OFF and stays at that value until all the controllers are also vacant. After the
shared occupancy timer expires, the lighting for the whole space will turn off at the
same time. The shared occupancy timer default is 60 seconds.
Create a Shared Occupancy Space
A shared occupancy space is easy to create before the controllers are installed, during pre-
commissioning, or manually on site if you have access to one of the controllers and the ability
to activate Link mode on each of the other zone controllers in the space.
Controllers in a shared occupancy space have the same shared occupancy ID. Pressing a button
sequence on one controller generates and sends a unique shared occupancy IDmessage that
controllers in Link mode record to join and recognize the shared occupancy feature.
Connect Controllers
You can select any controller to send a shared occupancy ID and connect other controllers. If
the selected controller does not have a shared occupancy ID (default), it will generate one to
send. If the controller has a shared occupancy ID, it will send the shared occupancy ID it has
recorded.
Note: To reset a controller's shared occupancy ID to the default, zero (0), you can
delete the shared occupancy ID field in Garibaldi Pro. To restore the default manually,
you must reset the controller. See Clear Button on page 16.
1. Identify one controller to send the shared occupancy ID.
2. Activate Link mode on the controllers you want to connect, using Garibaldi Pro or
manually press each of the [Learn] buttons. Link mode times out after 60 seconds of
inactivity.

10 Tunable White Dimming Controller Configuration Guide
3. Press and hold the [C lear] button and then press the [Learn] button four times on the
sending controller. The controller sends a shared occupancy ID for controllers in Link
mode to receive and record.
Alternatively, if the project is set up in Garibaldi Pro, you can copy the sending
controller's shared occupancy ID field to each of the controllers in the space.
4. Ensure an occupancy sensor is linked to each zone controller.
Configure Controller Settings
1. Set the vacancy Partial-OFF value, if other than the default 20% is required.
2. Set the shared occupancy timer, if other than the default 60 seconds is required.
3. Set the vacancy Fade-OFF rate, if other than the default two seconds is required.
Hospitality Applications
Hospitality is a specific kind of occupancy-based control. When the controller is used in a hotel
or dormitory setting, it is typically linked to a keycard switch station or to both an entry door
sensor and an occupancy sensor.
Example: When an occupant enters a room and inserts a keycard into the keycard
switch station an occupancy message is sent to its linked controllers to power the
room. Lights can be turned ON to a level (occupancy Partial-ON), creating a
welcoming environment.
For hospitality applications that do not use keycards for room access, an entry door sensor and
occupancy sensor combination can be linked to the controller to confirm occupancy and
therefore proper control. The occupancy sensor is used to monitor occupancy, not to turn
lights OFF. Each time the door is opened and closed and the sensor detects motion, the room
locks into an occupied state. If the door opens and closes, but no motion is detected before
the occupancy Auto-OFF timer expires, the room resumes an unoccupied (vacancy) state. If an
occupancy message is sent when the room is in an unoccupied state, the room will lock into an
occupied state until the entry door opens and releases the lock on the state.
Note: If using the manual method to link a Magnetic Contact Sensor (MC-31) as a
entry door sensor, link the sensor to the controller with the magnet placed next to the
sensor (closed door position). If the magnet is not beside the sensor (open position),
the MC-31 is linked as a window sensor.

Daylight Harvesting Applications 11
Daylight Harvesting Applications
The controller modulates light intensity from a dimming fixture based on the ambient light
level in the space when a photo sensor is linked to the dimming channel. When daylighting is
active, a switch, gateway command, or occupancy sensor cannot force the light level higher.
However, a switch, occupancy sensor, or gateway command can override the light OFF or dim
to a level below the daylighting control value.
Note: The controller supports only one linked photo sensor. If using multisensors,
Echoflex recommends that only one be linked to the controller.
Daylight harvesting does not affect the operation of wall switches or occupancy sensors when
the light is ON. If the light is ON, either a switch or occupancy sensor can override with an OFF
action or dim to below the daylighting control value. See Photo Inhibit on page8.
Daylighting Control Override
The open or closed loop daylighting features can be temporarily overridden by enabling the
daylighting manual override parameter. The override has a timer that releases the override,
and once the timer expires the daylighting control resumes.
If the override is enabled on the controller, a manually controlled switch can turn lights ON
and manually set the dimming level.
Garibaldi Pro software is required to configure both the daylighting manual override timer and
daylighting manual override enable parameters.
Closed Loop Control
In closed loop daylighting, the sensor indirectly monitors the controlled light output from the
fixtures plus some of the natural light contribution.
Note: For closed loop control to function properly, the sensor must be installed in a
location where it is significantly affected by light level changes. If not, Open Loop
Control on page13 should be used.
When the lights are on, closed loop daylighting tries to maintain a given set point level within
the space. This level is specified in the closed loop daylighting set point parameter. The
controller only adjusts the dimming output on received photo sensor messages and only when
the light is ON. If the light is OFF, closed loop daylighting is ignored.
Note: This process is best performed when there is little or no natural light; either
close the blinds or complete this step at night. A photo sensor and a switch must be
linked to the controller.

12 Tunable White Dimming Controller Configuration Guide
To set the closed loop set point:
1. Turn the light ON.
2. Use a handheld photometer to measure the light on the task plane.
3. Use a linked switch to adjust the fixture's light level until it matches the target light level
and give the sensor a moment to register the level.
4. Tap the [Teach] button on the mounted sensor three times to set the daylight harvesting
parameters to closed loop function. The light level ramps up to full ON and then dims to
OFF to acknowledge the change.
5. Move away from the sensor so your shadow does not affect the light level the sensor
records.
After a pause, the light responds once again when the next message from the sensor is
received and the controller returns to normal operation. The pause may take up to 150
seconds.
While maintaining the set point, the dimming output level changes an incremental amount of
the output's full range with every message received from the photo sensor. The default
daylighting maximum change is 10%, which provides a slow adjustment that does not exceed
the set point.
Note: Ensure the wireless photo sensor has an update rate that is appropriate to
indoor closed loop lighting applications. The period between consecutive messages
should not exceed 200 seconds.
The output dimming level does not change when the photo sensor level is within the closed
loop deadband value of the closed loop daylighting set point.
Example: If the controller has a set point of 500 lux and the deadband is set to 5%
(default), then the deadband would be + or - 25 lux. If the light level measured by the
sensor in this example was between 450 lux and 550 lux, the controller would not
change the light level. This variable is used to prevent feedback loops in the closed
loop control.
Garibaldi Pro software is required to configure both the amount of change per message and
the deadband value parameters.

Daylight Harvesting Applications 13
Open Loop Control
A sensor's default setting (open loop or closed loop) depends on what it is linked to and the
daylighting operating mode setting on the controller: automatic, open loop, or closed loop. In
open loop daylighting, the sensor monitors the natural light contribution. The sensor must be
mounted so it is not affected by the controlled fixture's light output.
When the light level monitored by the photo sensor is below the open loop maximum output
set point, dimming output is at the maximum output level. When the light level is above the
open loop minimum output set point, dimming output is at the minimum output level.
In the diagram below, the solid line (blue) indicates dimming output. It begins lowering as the
natural light level increases, dashed line (green). When the monitored light level is between
the set points it modulates dimming output proportionally.
Minimum
Output Level
Photo Sensor Range
Min. set point highest
Dimming Output ValuePhoto Sensor Value
lowest Max. set point
Maximum
Output Level
The rate that the dimming output changes is defined by the open loop dimming rate
parameter which defines the time for dimming to go from lowest to highest or vice versa
(default 65seconds).
To set the open loop maximum output set point and minimum output set point using Simple
Tap, a photo sensor must be linked to the controller.
Default Setting and Illuminance
Sensor
EEP
Daylighting
Mode Units Closed Loop Set Point
Closed Loop
Deadband
Open Loop
Set Point
A5-06-01 Open loop lux 30 000 lux 1 500 lux 9 000 lux max
24 000 lux min
A5-06-02 Closed loop lux 510 lux 26 lux 400 lux max
1 000 lux min
A5-06-03 Closed loop lux 510 lux 26 lux 400 lux max
1 000 lux min
A5-06-04 Open loop lux 32 767 lux 1 638 lux 9 830 lux max
26 214 lux min
A5-06-05 Closed loop lux 5 100 lux 255 lux 1 530 lux max
4 080 lux min
A5-07-03 Closed loop lux 510 lux 26 lux 400 lux max
1 000 lux min
D2-14-25 Open loop lux 50 000 lux 2 500 lux 20 000 lux max
60 000 lux min

14 Tunable White Dimming Controller Configuration Guide
To change the default setting:
1. Turn the light ON.
2. Tap the photo sensor [Teach] button three times to change the default. The light ramps
up to full ON and then dims to OFF once.
a. If you stop and exit the menu here (after three taps), the daylighting mode is set to
closed loop. The next sampled value from the sensor is used to set the closed loop set
point. The deadband setting is 5% of the closed loop set point.
b. To set maximum and minimum open loop set points, tap the photo sensor [Teach]
button again as indicated in the table below. The light responds by flashing the
number of times you tapped to confirm the change. After five seconds it returns to
normal operation.
Sensor
EEP - 1 tap 2 taps 3 taps 4 taps 5 taps
A5-06-01 Closed loop 3 000
6 000
6 000
21 000
9 000
24 000
12 000
30 000
15 000
33 000
A5-06-02
A5-06-03
A5-07-03
Closed loop 200
1 000
300
1 000
400
1 000
500
1 000
600
1 000
A5-06-04 Closed loop 3 277
19 661
6 554
22 938
9 830
26 214
13 107
32 768
16 384
36 045
A5-06-05 Closed loop 510
3 060
1 020
3 570
1 530
4 080
2 040
5 100
2 550
5 610
D2-14-25
D2-14-56
Closed loop 0
20 000
10 000
40 000
20 000
60 000
30 000
80 000
40 000
100 000
Controller Presets
Preset values are used to determine the dimming intensity and color temperature of different
lighting scenes that are part of a designed solution made up of connected devices. A scene is a
coordinated combination of controllers configured and grouped to light a space according to
specific requirements. Groups, scenes, and event masking can be created in a Wireless
TimeClock, and activated from a Wireless TimeClock or a scene station.
Echoflex controllers have 15 configurable presets (plus one reserved for OFF). Preset values can
be configured and saved to a controller using Garibaldi Pro software. Presets 1 through 8
cover a graduated range of values from full ON (100%) to OFF (0%). Presets 9 through 15 are
a repetition of the values 1–7 and provide the opportunity to create custom values. A default
ramp time of two seconds is given for the lighting to reach the preset value.