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Dear customers, thank you very much for purchasing one of our
Uniteck products. Please read carefully and
thoroughly all the instructions before using the product.
DESCRIPTION
UNIMPPT is an advanced MPPT technology solar charge controller
for autonomous photovoltaic system
for battery charging.
It accepts a solar photovoltaic panels system of maximum voltage
100V and maximum power as
follows:
Unimppt 100.40.24 S Unimppt 100.60.24 S
12V Batteries 600 W 1000 W
24V Batteries 1200 W 2000 W
Through its integrated microprocessor, one of the fatest
microprocessor on the market, UNIMPPT
provides an optimal charging current (voltage/current) for your
12 or 24V battery based on:
- battery technology (Gel/Liquid/AGM)
- the battery state of charge (advanced charging algorithm
ALGOTECK)
- ambient temperature which influences battery voltage (remote
sensor in option)
UNIMPPT 100.40.24 S and 100.60.24 S are among the most efficient
on the market (>98%).
Unimppt has automatic and electronic protection against Battery
polarity reversal. This protection offers
the advantage of avoiding any manufacturer return out of
warranty in the event of error as
required by products with internal fuse.
MPPT + ALGOTECK TECHNOLOGY
MPPT technology last generation combined with it’s at 6 steps
new charging algorithm ALGOTECK in,
UNIMPPT has advantages below:
- Energy collection optimization relative to a PWM. UNIMPPT
reconverts in charge intensity the unused differential voltage from
panel/battery with a standard regulator (PWM). This technology
difference results in 20% power gain of in the summer period and of
40% in winter sunny period when the voltage it’s at its maximum (no
decrease in voltage due to the increase in temperature of the
panel).
- Energy collection optimization of during cloudy periods. Light
intensity changes quickly and UNIMPPT research in real time
(refresh every 100 ms, among the fastest MPPT regulators on the
market), the
point of power optimum of panel for more electricity production.
This guarantees maximum power
under the most changing climatic conditions.
- Battery lifespan optimization. UNIMPPT constantly monitors the
battery health status and charge status to calculate and to deliver
every day the best charge curve for the battery (voltage level,
current level, pulse rate, temperature ...). UNIMPPT protects
them from any stratification or
sulphating phenomenon and improves their service life.
(Reconditioning and Life+ steps).
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ADVANTAGE MPPT TECHNOLOGY VS PWM
MPPT FUNCTION EXPLANATION
Unlike a standard PWM regulator which lowers voltage panel at
voltage battery based on the thresholds of voltage define per his
charge algorithm, a MPPT regulator (converter/regulator) uses all
panels voltage and reconvert the excess of voltage panel/battery in
charge intensity (cf. patterns below)
* Example with a MPPT efficiency of 98%
UNITECK MPPT ADVANTAGE
UNIMPPT research in real time (refresh every 100 ms, one of the
fastest MPPT solar charge controller
among on the market), the optimum power point of panel, thus
verifying if the voltage /intensity couple
has changed to modify its conversion parameters in input and
thus to optimize the out power.
25V
20V
15V
1 2 3 4 5 6 7 8 9 10 A
Voltage = 18,7 V
Intensity = 5,43 A.
Generated power
100W
Voltage
➔ Intensty
PWM controller
V bat = 12,5 V
I bat = 5,43 AA
Output power
67 W
V bat = 12,5 V
I bat = 7,84 AA
Output power
98 W*
Voltage
Intensity
MPPT controller
Maximum power point tracking all the 100ms v
UNIMPPT thus ensures the power maximum even in changing weather
conditions (cloudy sky).
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ADVANTAGE TECHNOLOGY MPPT VS PWM (CONTINUE)
MPPT GAIN A MPPT OVER PWM
The voltage of a photovoltaic solar panel varies according to
its temperature: its voltage decreases when the temperature rises
and vice versa. This standard value called temperature coefficient
is given for a cell temperature of 25°C. Example: a panel that
displays +/-0.34%/°C, therefore means that its Vmp voltage must be
corrected by -0.34% per cell degree above 25°C. As shown in the
example below, which highlights the voltage variations due to
temperature and voltage drops due to the cable, a UNIMPPT charge
controller allows a GPM (Average Production Gain) of 20% in summer
and up to 40% in winter. We also note that the more the battery is
discharged and/or the panel voltage is high, the greater the
advantage of an MPPT over a PWM is.
100 W solar panel with UNIMPPT controller
Sunshine Winter
Solar Panel
temperature
Panel voltage Vmp
Voltage drop due to
the cables (5%)
Charging battery
voltage
Theorical gain in
value
Theorical gain in %
Gain rectified MPPT*
Sunrise 9h 5°C 20,0 19,0 12,2 6,8 56% 53% 19,9 18,9 12,5 6,4 51%
49% 19,8 18,8 13,0 5,8 45% 42% 12h 19,7 18,7 13,5 5,2 39% 37% 19,6
18,6 14,0 4,6 33% 31%
End of charge 16h 15°C 19,5 18,5 14,6 3,9 27% 26%
Mean + 40%
Sunshine Summer
Solar Panel
temperature
Panel voltage Vmp
Voltage drop due to
the cables (5%)
Charging battery
voltage
Theorical gain in
value
Theorical gain in %
Gain rectified MPPT*
Sunrise 7h 30°C 18,4 17,5 12,2 5,3 43% 41%
17,2 16,3 12,5 3,8 31% 29% 17,2 16,3 13,0 3,3 26% 24% 10h 16,6
15,8 13,5 2,3 17% 16% 16,3 15,5 14,0 1,5 11% 10%
End of charge 14h 70°C 16,0 15,2 14,6 0,6 4% 4%
Mean + 20%
* Example with a MPPT efficiency of 98%
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COMPATIBILITY PANEL
UNIMPPT is Buck Synchrone technology. It converts panel voltage
in lower value voltage for the 12V or 24V battery. Generator
powered on happens is if the PV voltage (Voc) exceeds the battery
voltage more than +5V.
The charger will turn off when voltage PV (Voc) will be less
than Vbat +1V.
Theoretical and actual power of a solar panel
The production data for solar panel are given according to
Standard Test Conditions (STC): 1000W/m²
solar radiation, cell temperature at 25°C.
In summer in France, the panel temperature is quickly between 50
and 70°C and the solar radiation is 850W/m².
As the table below shows, in France, a 300 Wc peak panel will
produce a maximum of 200W.
Panel Power
(STC Standard)
Real power rectified with temperature
(up to 15% decrease) *
Real power rectified at 850W solar radiation
(Up to 15% decrease) **
Power loss with wiring
(up to 5% decrease)
250 Wc 215 180 175 260 Wc 220 190 180 270 Wc 230 195 185 280 Wc
240 200 190 290 Wc 250 210 195 300 Wc 255 220 200
*Rectification temperature = 0,4%/ degree above 25°C either 10%
increase for 70 °C (NOCT) ** Sunny rectification = CF explanation
above
Winter Summer
Lille 300W/m² 700W/m²
Marseille 500W/m² 850W/m²
Solar radiation in France
1000W/m² (Standard)
800W/m²
8A
7A
6A
5A
4A
3A
2A
1A
500W/m²
250W/m²
10V 15V 20V 25V
15 % power in less
between normative
sunny and maximum
sunny in France
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PANEL COMPATIBILITY – UNIMPPT 100/40.24 S
With 12V battery
With 24V battery
1 panel
50W ► 300W
50W ► 300W
24V panel
+
2 panels
50W ► 300W (x2) series or parallel
50W ► 300W (x2) Series
+ +
3 panels
50W ► 200W (x3) parallel
50W ► 150W (x3) Series
50W ► 150W (x3)
series
200 W – 24V (x3) Parallel
+ + +
4 panels
50W ► 150W (x4)
series and parallel
50W ► 300W (x4) series and parallel
+ + +
+ +
6 panels
50W ► 100W (x6) series and parallel
50W ► 200W (x6) series and parallel
Series or parallel connection
Series
Parallel
Advantages Connection simplified
No power decrease when panel is shaded.
Disadvantages Power decrease if a panel is shaded
(tree, building, chimney, sail, ...) Use derivation connectors
and larger
cable section
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PANEL COMPATIBILITY – UNIMPPT 100/60.24 S
With 12V battery
With 24V battery
1 panel
50W ► 300W
50W ► 300W
Panneaux 24V
+
2 panels
50W ► 300W (x2)
series or parallel
50W ► 300W (x2)
series
+ +
3 panels
50W ► 200W (x3)
parallel
50W ► 150W (x3)
series
50W ► 150W (x3)
series
200W – 24V (x3) parallel
+ + +
4 panels
50W ► 150W (x4)
series and parallel
50W ► 300W (x4)
series and parallel
+ +
+ +
6 panels
50W ► 150W (x6)
series and parallel
50W ► 300W (x6)
series and parallel
+ +
+ +
+ +
9 panels
50W ► 100W (x9)
series and parallel
50W ► 150W (x9)
series and parallel
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!
TECHNICAL ADVICES BEFORE CONNEXION
Before connection, please consult the following points:
BATTERY
UNIMPPT has an automatic voltage detection. For its correct
functioning, please check:
- the battery voltage is higher than 6V (required voltage for
the startup of the solar charge controller)
- For 24V batteries, the voltage cannot be lower than 18V.
For flooded batteries, check the electrolyte level. If
necessary, complete before charging.
For coupling, proceed as follows: In series In Parallel In
Series and in Parallel
PHOTOVOLTAIC PANELS
The maximum open circuit PV voltage of the panel(s) in series
(Voc) must not exceed 100V.
Higher voltage may damage your regulator. Damage not covered by
warranty. Its charging current is 40 or 60 A at 12V and 24V. If the
input value is exceeded, UNIMPPT will limit its output power to
this value without damaging the controller
Some advice For parallel connection, use diagonal wiring for
load/discharge uniformity.
Do not pair batteries of different ages or
different technologies
With equal capacity prefer a high capacity battery, with 2 small
connected in parallel.
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INSTALLATION - FIXATION
UNIMPPT has been designed for indoor use. It must be fixed on a
suitable, solid, stable and dry flat surface. Use the Unmppt in a
well-ventilated room, away from rain and dust. To ensure a good air
circulation necessary for cooling, provide a free space of at least
15 cm around the product.
During use, the charge regulator may become hot, keep it away
from flammable materials. Always mount the Unimppt regulator
horizontally to ensure proper cooling. Never mount the product
flat, as this will prevent cooling.
15 cm 15 cm
15 cm
15 cm
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FRONT AND SIDE FACE
3 Battery Technology Choice Indicator:
- AGM: sealed battery, maintenance-free, VRLA.
- Gel: gel electrolyte battery
- Liquid: Liquid electrolyte battery (with plug).
Control Button:
- Battery selection: press for 5 seconds
Battery connection - 2 M8 brass screws (supplied*)
PV connection - 2 M8 brass screws (supplied*)
6 Battery charge status indicators
UNISENSOR remote temperature sensor input (optional)
*For a better electrical connection, be sure to use the screws
provided
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CONNECTION
For the connection of your solar charge controller, we advise
you to be surrounded by qualified personnel in accordance with the
regulations in force in your country.
We recommend the use of suitable isolated tools to avoid short
circuits.
The tightening torque of the 4 M8 screws must be 20 Nm.
Connect each component to the symbols provided for this purpose
(cables and round terminals not supplied).
Please follow the order of connection, observing the correct
polarities. When disconnecting, please follow the reverse order. We
recommend the use of a cable with a suitable fuse.
Connect your battery to the charge regulator (+ and-). All LEDs
turn on and Test
LED lights up during 30 sec.
Connect your photovoltaic panel to the charge regulator (+ and
-), and Test LED
lights up during 30 sec.
The maximum open circuit PV voltage of the panel(s) in series
(Voc) must not exceed 100V.
Select your battery technology, your controller has 4 modes
:
- Press and hold the button for 5 seconds, the active LED
flashes
- Choose your battery and mode technology by pressing the
button
AGM: Maintenance-free lead-acid battery, AGM. Gel: Gel Battery
Liquid: Open lead acid battery Liquid with reconditioning: Open
lead acid battery (see page 13)
- To confirm your selection, wait 5 seconds. The indicator
becomes fixed again.
Unimppt saves your last configuration.
GROUNDING – INSTALLATION CLASS
The grounding of solar charge controller is not regularly
necessary. If you want anyway achieve a
grounding, always do on the negative pole of the battery.
If the no-load voltage of your solar panels is higher than 75 V
(throughout the temperature range of using), the whole solar system
must be installed according to the class of protection II.
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FUNCTIONNING – CONTROL PANEL
OVERNIGHT DISPLAY
Flashing red
Deeply discharged battery, charge level 80
Red Battery discharged, charge level < 50%. Orange 50 and 70%
charge level Green Charging level >70%
Blue Battery test every morning and evening
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ALGOTECK CHARGING CURVE
BATTERY CHARGING STEPS
Its ALGOTECK charging algorithm is unique on the market and
consists of 6 steps.
1
TEST UNIMPPT determines the daily health and charge status of
your battery
and sets the steps and charge levels necessary to maintain your
battery.
2
BOOST CHARGE
(I)
UNIMPPT uses 100% of the energy from the solar panel, until
the
voltage reaches the equalization voltage.
The battery is then 80% charged.
3
EQUALISATION (max. 4 heures)
UNIMPPT equalizes the charge on all battery cells (battery
100%
charged)
4
RECOND. Only in Recond Liquid mode, this weekly step makes it
possible to mix,
thanks to a pulsed current, the electrolyte of your battery to
avoid any
phenomenon of stratification or sulphation.
5
100% Battery charging is complete. UNIMPPT continues to deliver
a very low
current to compensate for battery self-discharge.
6
LIFE+/STORAGE UNIMPPT compensates for the battery's natural
self-discharge, with
periodic pulse charging for longer battery life.
Nb : the above voltage levels are adjusted by ALGOTECK
conditions
Seuil de tension Gel AGM Liquid
Boost Absorption
14,2 V -
14,4 V 14,4V
14,5 V 14,5V
Egalisation - - 14,8V
Floating 13,9V 13,9V 13,9V
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ALGOTECK LOAD CURVE (CONTINUED)
REGULATION OF THE CHARGING CURVE ACCORDING TO BATTERY
TECHNOLOGY
For perfect charging of all lead-acid batteries, Unimppt adapts
its charging curve to the selected "battery
technology:
Liquid" Battery Mode:
Liquid electrolyte batteries require a higher charge to avoid
stratification of the electrolyte. Stratification
is a non-homogeneous mixture of electrolyte. The acid is
concentrated at the bottom and the water has
a lower density at the top. This can lead to freezing or
oxidation of the plates. To avoid this
phenomenon, Unimppt carries out, in "Liquid" battery mode, an
absorption charge which mixes the
electrolyte, essential to preserve the life of your battery.
Equalisation charging is also possible.
Battery mode "AGM" / "GEL" Battery mode:
Waterproof batteries (AGM or GEL) require a precise control of
the charge voltage to avoid bleeding
phenomenons. Bleeding is an electrochemical reaction that leads
to the release of oxygen and hydrogen
gases inside the battery when the battery voltage reaches a
point named "gasification voltage".
This voltage changes according to the type of the batteries (AGM
or GEL). Depending on the selected
mode, Unimppt releases a voltage level adapted to the technology
of your battery for a recharge up to
100%.
External temperature control
The chemical characteristics of the battery vary depending on
the surrounding temperature. using its Unisensor remote temperature
sensor, Unimppt precisely adapts its charging voltage to a
reference temperature of 25°C, +/- 10mV (+/-30mV at 24V per °C),
which avoids overcharging and undercharging your battery.
INTEGRATED PROTECTIONS
For safe use, UNIMPPT has many built-in protections that protect
the regulator and battery:
- Reverse polarity protection and panel short circuits, -
Battery polarity reversal protection (fuse),
- Thermal protection
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TECHNICAL SPECIFICATIONS
SYSTEME
Unimppt 100/40.24 S
Unimppt 100/60.24 S
Battery voltage 12/24V
Automatic detection
Nominal charging current 40 A 60 A
Maximum power at 40°C 500W in 12V / 1000W in 24V 750W in 12V /
1500W in 24V
Panel Compatible
- maximum power
- maximum voltage Voc
600W in 12V / 1200W in 24V
100V
1000W in 12V / 2000W in 24V
100V
Technology Advanced MPPT
Nominal efficiency 98%
Auto consumption 30 mA
Degree of Protection IP X1
IP 53
(Electrical connections)
(electronic parts)
Max cable cross-section De 10 mm² à 35 mm2 (connection by round
terminals not supplied)
Max Altitude 2500 m
SOLAR CHARGE CONTROLLER
Voltage selection (12/24V) Adaptive with 6 steps
Battery type selection Yes (Gel, AGM, Liquid, Liquid with
reconditration)
Recommended battery capacity 200 to 2 000 Ah
Temperature Compensation Yes (with Unisensor option)
-10mV /°C in 12V (25°C ref)
-20mV /°C in 24V (25°C ref)
Protection inversion de polarité Batterie
Electronique
MECHANICAL CHARACTERISTICS
Dimensions (LxHxP) 225 x 135 x 45 mm 225 x 135 x 45 mm
Weight 1,1 kg 1,5 kg
Operating temperature -20°C to + 60°C
Storage temperature -30°C to +80°C
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TROUBLESHOOTING, CAUSES, REMEDIES
Error message Causes Solution
No light switch on
The solar charge controller
needs the battery voltage to
be higher than 10V to be able
to start when connecting the
battery
Check the battery voltage,
recharge it if necessary.
Battery polarity reversal
Check the connections. Battery connection problem
(cables, terminals...)
Defective battery
Replace your battery,
following the order of
disconnection and connection
(see installation and
connection section).
Test light illuminated green, yellow or
red during the day
Solar panel disconnected, not
properly connected, or short
circuit
Check the connections
(polarity and connection).
Normal functionning: The panel voltage is lower than the battery
voltage or too low sunshine.
The panel will resume charging as soon as the panel voltage
exceeds the battery voltage.
One or several cells of your
panel are hidden.
Check the cleanliness of your
solar panel and make sure
none of the cells are hidden.
Orange or red charge indicator
Battery discharged
Usual charge, light goes
green as soon as the battery
is charged.
High voltage alarm in your vehicle,
boat,
Battery deeply discharged. Setting your alarm
Using Liquid Recond Mode Set your product to Liquid
mode (without Recond)
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WARNINGS AND PIECES OF ADVICE
• UNIMPPT is designed to be exclusively used with photovoltaic
systems and lead acid batteries with liquid electrolyte, gel cell
(Gel), sealed AGM types.
• Under no circumstances should you attempt to charge other
batteries than acid-lead batteries (non-rechargeable batteries for
example).
• Use UNIMPPT in a well-ventilated area, sheltered from rain,
humidity, dust and condensation.
• Follow manufacturer’s instructions and safety procedures of
the battery. In case of doubt, consult
your retailer or installer.
• Batteries can produce flammable gas. Avoid flames, sparks.
• During battery maintenance (except GEL), there is a risk of
acid leaks so protect yourself.
• Never short circuit + and - of the battery or cables: risk of
explosion or fire.
• Maintenance : check the wiring and all connections at least
once a year.
• All tasks must be realised in compliance with the country
regulations in force regarding electricity.
• The device used in your installation such connectors, cables,
fuse, disconnectors, … must be adapted and in conformity with law
and regulations in force in the country for application
regarded.
• This device is not designed to be used by people (including
children) whose physical, sensory or
mental abilities are reduced, nor by people lacking of
experience or knowledge unless they have
benefited of supervision or prior instructions concerning the
use of the device given by a person
responsible for their safety.
• Please keep an eye on children to ensure that they do not play
with the device
PICTOGRAMS
Device conform to applicable
European Union directives
For indoor use, do not expose to the rain
Caution! Before using, read the
instruction manual utilization.
Caution explosive gases, avoid sparking and
naked flames.
Product under selective
collection- Do not throw it in a
household waste.
Choose a sheltered local with adequate
ventilation or especially equipped
IP51
Protected against dust and vertical drops of water.
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COMPLIANCE STATEMENT
UNITECK testifies that the solar charge controllers described in
this manual:
UNIMPPT 100/40.24 S et 100/60.24S S are manufactured in
compliance with the following European directives:
- Low voltage directive: 2014/35/UE du 26/02/2014.
- EMC directive: 2014/30/UE du 26/02/2014.
- ROHS Directive: 2011/65/UE du 08/06/2011
It complies to the harmonised standards:
- Low voltage : EN 60335-1 : 2013 / EN 60335-2-29 : 2004
- Regulatory standard: EN 62509
- CEM : EN 55014-1 : 2007 / EN 5514-2 : 1997 / EN 61000-3-2 :
2006 / EN 61000-3-3 : 2014
EN 62233 : 2008
- ROHS : EN 50571 : 2013
Date of CE marking: janvier 2018.
01/01/2018 Yoann Fourmond
Uniteck- 8 Avenue de Rome Directeur Général Immeuble le
Cassis
34350 Vendres -France
WARRANTY
The warranty covers any defect or manufacturing defect for 1
year from the date of purchase (parts and labor).
The warranty does not cover:
- normal wear and tear of parts (e.g. cables, etc.)
- panel-module/battery voltage errors, incidents due to
inappropriate uses, fall, disassembly or any
damages due to transport.
In case of failure, return the device to your distributor by
attaching:
- the dated proof of purchase (receipt, bill…)
- explanatory note of the failure.
Attention: our after-sales service does not accept returns
postage due or any additional transport costs.
After the warranty, our after-sales service ensures repairs
after acceptance of a quotation.
Contact SAV :
Uniteck- 8 Avenue de Rome Immeuble le Cassis
34350 Vendres -France
France mail:
[email protected]
Fax: +33 (0)4 88 04 72 20
mailto:[email protected]