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Solar Charge Controllers
Discharge Protection
Overcharge Protection
Temperature Compensation
System Voltage 12/24 V
Gassing Regulation
Please read these instructions
completely before installation!
instructions
and description of controllers with overcharge and
overdlscharge
protection.
gaslng
regulation
compensation.
In photovoltaic solar systemslead batteriesare often used for storing solar
current. These batteries have to be protected against overcharging and
overdischarging.TheSolsum controllersSolsum5 0/ 5.6 / 8.018.8 fulfillboth
tasksin one device.They can be used for in 12 and24 V systems.
Overcharge Protection
n
Whe
the batteryexceedsthefinal chargevoltage.it startsto gas.As this
process is temperature dependent, the final charge voltage is adapted
automaticallyto the ambient temperatureby a built.in sensor.Strong gasing
leads to an electrolyte loss and finally to the destruction01the battery.The
y
batter
is howevernotchargedcompletely whenthefinalchargevo.tage is
reached. so that the current flow should not be interrupted. The charge
controller therefore reduces the current flow into the battery just as much as
thatthe finalchargevoltageis not exceeded. T hisprocedureis called•.11J•
.
charging.
whichis considered tobeespecially f astandgentte. T hereduction
ot the current flow is effectedby very qutCk.temporaryshort-circuiting(pulse
width modulation) ot the solar generator.
Gaslng Regulation
Thefinalchar evoltage is Changedin dependencewith the discharge level.
When a lead attcry is operated without and gas developmentfor a longer
time.thereis the danger Ofa harmful acidlayering.This acidlayering can be
avoided by limited. controlled gasing. This function is
regulation
.
Thegasingregulation switches O fftheovercharge p rotection unti'
theso-calledfinalgastngvoltageis reached.Furthermore thegasing regulation
increases thc final charge voltage during high cyclisation By this temperature
t
dependen
function. t hebatterycapacity is betterused.
This kind of charging is also suitable tor gel accumulators
5.6
5.0
8.8
8.0
Overdischarge
protectlon
Thc batteries have to be protected from Overdischarge.as It would be
destroyed otherwise.Thereforethe chargecontroller protectesthe battery
fromoverdischarge bydisconnecting t heloads whcnthcvoltage lallsbelow
thc final chargevoltage.Atterthebatteryhasbeenrecharged by thosolar
generator a ndthe reconnection voltage is reached. thcusercs areagain
econnectcd
Displays:
Thecontroller contains agreen andaLEO which canchanqcitscolourfrom
redviayellow togreen intendifferent colour . The green LEÖ isonassoon as
thereis energytromthc module When thecontroller s tarts tolimitthechargo
current.this LEO is flashing.ThoLEDwhichcan changeits colour showstho
vohage by its colour.Before theloadissw.tchcd off.thisLEO startstoflash
last.
tne load
Switchedot'. this LEO flashes slowly
Do not forget that the connected usersdo not use morecurrentthan
admlssable
for your regulator.
and temperature
Advice
for Installation:
Thecontroller has to be installedpossiblynearthe batteryand mustnot be
exposedto directweatherconditions. Thccontroller is to be operated'n
well-ventilatedrooms. Theconnectionterminalshaveto point downwards
whenit iSinstalled.Inordertoactivate the protectivefunctionsthecontroller
has to be connected with solar generator. battery and users.
Allsystem components i.e. s olar g enerator. battery u sers and controller have
tobecoordinated c oncerning v oltage. This istobechecked before intallation!
Payattention tothecorrectnominal voltage! A skyourdealer w henyouare
in doubt!
Following orderhasto beobeyed wheninstalling y ourcontroller:
1.Connect t hebatterywiththecontroller a tthescrew terminal. Thebiggest
possible c able diameter isrecommended
and a connectionterminalheatingaslowas possible(seetechnicaldata)
Onlywhenthe controller is installed withshortcircuitproofcables.an
isolationofthe battery cablecanbeomitted. O therwise a fusehasto be
inserteddirectlyat thepluspoleof thebatteryin orderto avoida short
circuit.Bothcomponents have to beinstalled in thesameroomin near
distance. as the sensor for temperature determinationis integrated into
the Controller.
2. Connect the modules Withthe controllerand notethe correct polarity
3. At last connect
users
by the gasing
For installation
see tiqure 2
Pay
Sources
Inversion
polarity.
blows.
replaced by the same
type.
Inversion
polarity: This is to be
avoided
Inversion
Olarity
he users (lights. radio
etc) can be damaged
betorc
A huge energy quantlty
is stored in the battery.
Fig. t: Circuit Diagram
In the
ctrcut. this energy can
be set
short time and a fire at
the place ot the short
circuit
because
Attention:
Avoidshortcircuits: dangerof fire!
2.Userswhich maynotswitchedOffmustbeInstallednearthebattery
and protected by a fuse (e. g. posltlon lights)
3. Sparklngscan developespeclallyIn direct current systemsduring
installationandoperation. 0 0 notInstallPV-components Inroomswhere
easyflammablegasesmixtures candevelop(e.g.bygasbottles.taquers.
solvents). Consult your dca:er when in doubt.
Adjustment of nominal voltage
Automatic adjustment t othesystem voltage whentheregulator i Sinstalled.
When youpayattention t othisinstructions yoursolar system willgiveyou
many years of pleasure. The battery r eaches a liteOftenyears orlonger. As
the solarmoduleandthechargecontroller havea considerably h igherlife
age. o nlythebattery h as tobeexchanged. Adefect battery c an berecognised
thatalthoughtheabove-mentioned charging takes place.theOverdischarge
protection swttchesott the usersalreadyatter a short time.
Technical
Controller
Nominal Voltage
Max. Module
Max.
Max. Own consumption
Final Charge voltage
Normale
Temperature compensation
inorder t okeep avoltage d rop
Overdischarge disconnection
Constant
Reconnection
Gasing regulation
"Gasing active" voltage
Final gassing voltage
Temperature Compensation
Fuse
Admissable
Dimenstons
Connection
Weiqht
(For-24Vsystemsvoltagesareto be dcubleU!',
• NO load disconnect. Only 'used with 6.3 and 'OA.
ntlon to the correct polarity!
of errors:
Regulator
ot battery
The
'use
It has
to
be
of
module
•.éédF.
of
the
of the load:
the fuse blows.
case
of a short
free
within
a
Module
Accu
can be caused
Fig.2 Connection
of heat.
Data at 2S•C:
5.6
8.8
Type
12 v
12 V
current
Load
current
4 mA
13.7 v
13.7 v
4m
V / K/
11.1 V
11.1 v
12.6 v
12.6 v
12.4 v
12.4 v
14.4 V
14.4 V
3 m VIKI
6.3 A
10 A
.25
•c
—+40
ambient temperature
85
x 98X35
terminal
100
g
Consumer
5.0
8.0
12V
12V
4mA
13.7V
13,7V
C etl
12.4
12.4
14.4V
14.4V
cell
6.3A
IOA
•c
mm
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