Ledmotive SPECTRA TUNE HCL User manual

www.ledmotive.com
SPECTRA TUNE HCL
Human Centric Lighting for
Researchers
Q2 - 2020 DS450004-04

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 2
Index
DESCRIPTION.............................................................................................................................. 3
SPECTRA TUNE HCL - Features................................................................................................ 3
LED ENGINE CONFIGURATION................................................................................................ 4
SPECTRAL MODULATION......................................................................................................... 5
SPECTRAL PRECISION and ACCURACY.................................................................................. 6
SPECTRAL SWITCHING TIME ................................................................................................... 6
THERMAL PROTECTION............................................................................................................ 7
ELECTRICAL SPECIFICATIONS.................................................................................................. 7
OPTIONAL: IP65 GLASS PRETECTOR ...................................................................................... 7
LIGHTING LEVELS –INSTALLATION PROPER DIMENSIONING ......................................... 8
CONTROL SOFTWARE............................................................................................................... 9
OPTIONAL: RESTful API .......................................................................................................... 10
PRODUCT PARTS...................................................................................................................... 10
DIMENSIONS ............................................................................................................................ 10
PHOTOMETRY .......................................................................................................................... 11
ELECTRICAL CONNECTIONS .................................................................................................. 11
COMMUNICATIONS BUS........................................................................................................ 12
LUMINAIRE INSTALLATION ................................................................................................... 14
QUICK START............................................................................................................................ 15
FEATURES - SUMMARY........................................................................................................... 16
MAINTENANCE & SERVICE..................................................................................................... 17
WARNING & SAFETY ............................................................................................................... 17
DISPOSAL .................................................................................................................................. 17
WARRANTY............................................................................................................................... 18
DISCLAIMER.............................................................................................................................. 18
APPENDIX 1: DIRECTIVE & NORMS....................................................................................... 19
APPENDIX 2: RESTful API ....................................................................................................... 20
APPENDIX 3: Communications components ...................................................................... 21

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 3
DESCRIPTION
The SPECTRA TUNE HCL is an LED
downlight luminaire for Human Centric
Lighting applications. The system can
deliver either white light or any light
spectrum obtained from the modulation of
each of its different wavelength channels.
Brightness can be dimmed down to 10% for
each channel individually, or for any white
light or specific spectral power distribution.
The SPECTRA TUNE HCL is equipped with
10 different types of colored LEDs.
LEDMOTIVE patented technology (Patent
PCT/EP2011/050002) warrants spectral
precision and accuracy as well as stability
over time, through a CMOS-based onboard
spectroradiometer.
The system can playback programmed
spectra sequences over time, dynamically
modifying the spectral components and
atmosphere present in the working
environment
SPECTRA TUNE HCL - Features
•High power multi-
spectral LED light
engine
•Adjustable
brightness
•Spectral output
control
•Integrated thermal
protection
•Standard mounting
drill hole (121 mm)
•Free operational
software control
(µWAVE) with basic
features
•Optional: IP65 front
glass
•Optional: RESTful
API for flexible
programmatic
features
•Communications
based on EIA-485
protocol
•Multiple SPECTRA
TUNE HCL can be
control with a single
LIGHT HUB
Figure 1. Picture of the SPECTRA TUNE
HCL

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 4
LED ENGINE CONFIGURATION
The SPECTRA TUNE HCL contains ten LED channels for multispectral reproduction. The
characterization of each LED is shown in Table 1 and Figure 2*
Channel
Color
Peak
Emission
(nm)
Radiometric
value (W)
Photometric
value(lm)
FWHM
(nm)
CH 1
UV
430
0.74
13
16
CH 2
Royal Blue
445
0.95
36
19
CH 3
Dark Blue
465
0.94
74
23
CH 4
Blue
475
0.89
97
30
CH 5
Cyan
505
0.98
319
30
CH 6
Green
525
0.77
389
34
CH 7
Lime
545
2.75
1256
110
CH 8
PC Amber
595
2.76
990
82
CH 9
Red
640
0.62
102
19
CH 10
Deep Red
660
1.25
81
18
* Measured at 25°C. Dominant wavelength and amplitude of some channel may vary slightly
depending on bin availability at the moment of the manufacturing; however, the individual
calibration of each SPECTRA TUNE HCL would be taken in account internally to correct any
eventual deviation and produce the desired spectrum.
Table 1. Generic features of the SPECTRA TUNE LAB light engine
Figure 2. (left) CIE 1931 xy coordinates of the 10 channels that define the color gamut
and (right) Spectral Power Distributions (SPDs) of the LED channel

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 5
Since the light output of the SPECTRA TUNE HCL is generated by mixing up to 10 wavelength
(color) channels, every spectrum is determined by independent pulse width modulation
(PWM) signals. Consequently, the luminous flux is not constant across the 1931 CIE
diagram. All active channels are mixed, providing with a smooth (uniform in color) light.
SPECTRAL MODULATION
Figure 3shows the product performance based on two different spectral modulations that
reproduce a blackbody radiation curve at two different temperatures such as 2700 K and
6500 K
Figure 3. Example of two different spectral fittings using a blackbody radiation at
2700 K and 6500 K

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 6
SPECTRAL PRECISION and ACCURACY
LEDMOTIVE patented technology allows the SPECTRA TUNE HCL to emit light spectra with
precision and accuracy thanks to the on-board CMOS spectrometer and the associated
feedback loop control algorithms.
When testing the system at different CCT when the brightness level is at 80% and the
feedback control loop is activated, color deviations of Duv’ within a 2-step circles can be
achieved according to the ANSI C78.377-2015.
SPECTRAL SWITCHING TIME
The SPECTRA TUNE HCL works in synchronous mode by default. It means that it
acknowledges the receipt of each command sent by the LIGHT HUB before accepting a new
instruction, so that “collisions” between messages can be detected and duly corrected.
Typical response times of this operation mode is within few hundreds of milliseconds.
Whenever an application requires fast switching times, the SPECTRA TUNE HCL can be set
to work in asynchronous mode
1
.
1
The optional RESTful API is necessary to make use of the asynchronous mode
Figure 4. results at different CCT when the feedback loop is activated

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 7
In that case, the light engine does not send any acknowledge signal to the LIGHT HUB,
making it possible to send spectral sequences to the SPECTRA TUNE HCL faster. Typical
average time between consecutive light spectra operating under the asynchronous mode is
around 10 milliseconds (100 different spectra every second).
THERMAL PROTECTION
The SPECTRA TUNE HCL incorporates a temperature protection control that is enabled by
default. In the unlikely event of PCB overheating (fan or dissipation failure, harsh
environments, etc.), the light engine will automatically reduce its luminous flux and
consequently the consumed electrical power to keep the temperature within a safety range.
In this way, the optimal working conditions that warrant the lifespan of the LED engine and
its components are always preserved.
ELECTRICAL SPECIFICATIONS
* fuse protection
** based on a communication bus EIA-485 (also known as RS-485)
OPTIONAL: IP65 GLASS PRETECTOR
LEDMOTIVE can provide, optionally, a transparent glass protector and a rubber O-ring
that warrants a frontal IP65
Nominal Input Voltage
100-270 V AC 50/60 Hz
Max. Input Power
60 W
Max. Input Current
2.5 A*
Data connector
Electric terminal
Data communication control
LEDMOTIVE proprietary protocol**

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 8
LIGHTING LEVELS –INSTALLATION PROPER DIMENSIONING
As in every lighting installation, light intensity levels on the specific room where the
SPECTRA TUNE HCL is going to be installed will depend on several parameters such as
dimensions, wall painted colors, furniture, presence of natural light, materials, etc.
The following table may be used as a quick guide to calculate the number of SPECTRA TUNE
HCL luminaires that would be needed for a particular application, depending on the room
dimensions and the desired maximum illuminance levels required for the research
undergone
2
:
2
This table should be considered as a rough approximation, not contractual data. Calculations have been
done for a rectangular room with a simple furniture equipment, 2.5 m ceiling height, with no natural or
additional light sources and with a regular maintenance and cleaning policy.
300 lx
500 lx
1000 lx
8 m2
4
4
8
12 m2
4
6
12
16 m2
6
8
16
Figure 5. Lighting simulation of a residential bedroom
Figure 6. Quick calculation of number of luminaires
required as a function of illuminance and room dimensions

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 9
CONTROL SOFTWARE
With every SPECTRA TUNE HCL or a group of luminaires, a PC/Laptop version of the
µWAVE software is provided to control the installation properly. For research applications
that need advanced programmatic functionalities please check the optional RESTful API.
Computer requirements:
•64-bit Operating System
•Windows version; preferred WIN 8 and above
Features:
•Change the amplitude of each channel to create a specific spectrum
•Brightness adjustment
•Save and import light spectra
•Playback spectra from the spectral database
•Create, save, and reproduce light sequences (dynamic streaming of light spectra) by
adding different light spectra to the sequence pool
Figure 7. Screenshot of the  WAVE software

SPECTRA TUNE HCL
Human Centric Lighting for Researchers
www.ledmotive.com 10
OPTIONAL: RESTful API
To provide the user with full programing flexibility in the operation of the SPECTRA TUNE
HCL, a RESTful API is available for the LIGHT HUB. The LIGHT HUB can be accessed using
the HTTP protocol under any programming language (C, C++, C#, Python, MATLAB, Java,
JavaScript, etc.).
Some details are provided in Appendix 2. Please contact us at [e-mail] for
further information.
PRODUCT PARTS
The SPECTRA TUNE HCL includes the following hardware and software items:
•Spectrally tunable LED downlight luminaire
•Power supply (from 110 –240 V A/V to 24 V D/C)
•µWAVE Software
NOT INCLUDED
3
:
•LIGHT HUB and power supply
•End-of-line (EOL) resistor
•Ethernet cable (to connect the LIGHT HUB to the LAN router)
•RS485 communications cable
DIMENSIONS
3
See Appendix 3 for more information about the LEDMOTIVE LIGHT HUB and communication wires
Figure 8. dimensions (all in mm) and drill hole