1
SOLAR CONTROLLER
P/No. SC110
12 VOLT
4 STAGE CHARGING
2
WARNINGS – IMPORTANT PLEASE READ
• SC110 is designed for indoor use only
• Use SC008 or SC015 for outdoor applications
• Do not disassemble the controller. Take to a qualified person if the unit requires repairing.
• Lead acid batteries can be dangerous. Ensure no sparks or flames are present when working
near batteries
• Eye protection should always be used. Never short circuit the battery
• Given sufficient light solar panels always generate energy even when they are disconnected.
• Accidental ‘shorting’ of the terminals or wiring can result in sparks causing personal injury or a fire
hazard. We recommend that you cover up the panel(s) with some sort of soft cloth so you can block
all incoming light during the installation. This will ensure that no damage is caused to the Solar
Panel or Battery if the wires are accidentally short circuited
• Always install a battery fuse on each circuit including the solar controller
MOUNTING THE DEVICE
The Solar Controller is mounted as below
The quickest and easiest way to mount the unit is to use the two plastic spacers and self tapping
screws supplied and mount the unit to a flat surface.
5723
104
58
Fig 1.
3
FEATURES
• 4 Stage charging ensures the battery is charged to the optimum level
• Advanced MCU control pulse width modulated (PWM) technology, high efficiency operation
• Programmable for Gel, AGM, Conventional lead-acid (WET) and Calcium Batteries
• Built in regulator to prevent your battery from being overcharged. Overcharging occurs when the
charge voltage is unregulated. This can result in premature battery failure
• In built regulator prevents your battery from being under charged, in the solar energy field, battery
undercharge often occurs, especially on some conventional Lead Acid or Calcium batteries; the unit
provides an automatic equalization feature for deeply drained conventional Lead Acid battery or
Calcium battery, as well as provides a cycling automatic equalizing feature every 28 days
• These solar controllers can be connected to the battery permanently to keep the battery fully
charged by using a process called “floating”. This means the controller will stop charging when the
battery is full and will automatically start charging the battery as required. This process will also
reduce water loss and help prevent the battery from ‘drying out’
• Protects your battery from discharge at night. Under low light or no light conditions the solar panel
voltage could be less than the battery voltage. The unit contains a special circuit which prevents
current flowing back from the battery and into the solar panel
• Colored LED’s to easily indicate the operational status and battery conditions
• Digital LCD to directly display battery voltage, charging current, charging capacity (Amp hour),
battery types, full charge and faulty codes
• Provides external battery temperature sensor (Optional)
• Multi charging protections against reverse polarity, short circuit, over temperature, over voltage, etc.
• Surface Mount or Flush Panel Mount options
• Conformal-coating circuit boards and plated terminals protect the unit in hostile environments
For use with 12Volt Solar Panel Only. Suitable for solar panels up to
120 Watts (SC110).
SOLAR CHARGE CONTROLLER
AMP/VOLT
BATTERY
TYPE
Hold for 3 seconds
for settings
CHARGING STATUS BATTERY CONDITION
12 VOLT
10 AMP
P/No. SC110
Fig 2.
4
WIRING CONNECTIONS
To protect the battery and solar panel, it is recommended that you place an inline fuse on the
positive wire of both the ‘Solar’ and ‘Battery’ circuits. A 20A fuse is required and should be installed
as close to the battery/solar panel as possible.
The Solar Controller has 4 terminals which are clearly marked ‘Solar’ and ‘Battery’.
There is a (12V) and earth (GND) terminal for each circuit.
Refer to the wiring diagram below.
1. Using the string wires, tightly screw the wires to the “Solar” terminal on the back of the
controller and connect to the solar panel as shown above in Fig 3.
2. Using the string wires, tightly screw the wires to the “Battery” terminal on the back of the
controller and connect to the battery as shown above in Fig 3.
When the connections are completed, the Solar Controller will start working automatically.
OPERATION – LCD DISPLAY
Please check your battery manufacturer’s specifications to select correct battery type. The unit
provides 4 battery types for selections: Gel, AGM, WET (conventional lead acid), and Calcium.
Correct Wire Size:
Please refer to the wire size chart below to
determine the minimum size wire needed
for each connection. This will also ensure
you get the best performance out of
your solar regulator.
20A FUSE (SC110)
40A FUSE (SC120)
20A FUSE (SC110)
40A FUSE (SC120)
SOLAR CHARGE CONTROLLER
AMP/VOLT
BATTERY
TYPE
Hold for 3 seconds
for settings
CHARGING STATUS BATTERY CONDITION
12 VOLT
10 AMP
P/No. SC110
AMP/VOLT
BATTERY
TYPE
Hold for 3 seconds
for settings
Fig 3.
Fig 4.
P/No Battery Connection Solar Array Connection
Length of Wire < 1m 6m 9m 12m
Size (mm
2
)
SC110 1.3 1.3 2.1 3.3
5
Press BATTERY TYPE button and hold for 3 seconds to go into your battery type selection mode,
the battery type you select will be shown on the LCD meter, the default setting is AGM Battery;
the controller will automatically memorize your battery type setting.
Caution: Incorrect battery type setting may damage your battery.
When the controller powers on, the unit will run ‘self-qualify’ mode and automatically show
below items on LCD before going into charging process.
Self-test starts, digital meter segments test
Software version test
Rated voltage and current test
After going into the charging process, the LCD displays the charging status as below:
Press VOLT/AMP button in sequence, the LCD will display in turn with Battery Voltage,
Charging Current and Charged capacity (Amp-hour).
Display in the day time:
Display during the night:
Display when the battery is fully charged
Press VOLT / AMP button in sequence, the LCD will display in turn with Battery Voltage,
Charging Current, if you do not press the button, the LCD will alternatively display the FUL
and VOLT or FUL and AMP every 2 seconds.
CHARGING STAGES
The VOLT / AMP button can be changed at any time during charging process.
The LCD also can be treated as an independent voltage meter. A voltage less than 11.5V Volts
indicates that the battery is discharged and needs re-charging.
Soft Charge (Stage 1a) – When batteries suffer an over-discharge, the controller will softly
ramp the battery voltage up to 10V.
Bulk Charge (Stage 1b) – Maximum current charging until batteries rise to Absorption level.
Ah
or
Stage 1a
Stage 1b
Stage 2
Stage 3*
Stage 4
6
Absorption Charge (Stage 2) – Constant voltage charging and battery is over 85%.
Equalization Charge* (Stage 3) – Only for WET battery or Calcium battery type, when the
battery is deeply drained below 10V, it will automatically run this stage to bring the internal cells
as an equal states and fully complement the loss of capacity (Gel and AGM battery do not run
Equalization charge).
Float Charge (Stage 4) – When the battery is fully charged it is maintained at a safe level.
A fully charged battery has a voltage of 13.6 Volts.
OPERATION – L.E.D. INDICATION
The 6 LED’s indicate the charging
status and the battery condition Red Blue Green Green Yellow Red
Solar Power Present – ON OFF OFF OFF OFF Flash
No battery connected
Soft charging ON Flash OFF OFF OFF ON
Bulk charging ON ON OFF Subject to battery voltage
Absorption charging ON ON OFF ON OFF OFF
Equalization charging ON ON OFF ON OFF OFF
Float charging ON OFF ON OFF OFF OFF
Solar panel weak Flash OFF OFF Subject to battery voltage
At night no charge OFF OFF OFF Subject to battery voltage
Battery Voltage below 11.5V ON ON OFF OFF OFF ON
(+/-0.2V)
Battery Voltage between ON ON OFF OFF ON OFF
11.5V - 12.5V(+/-0.2V)
Battery Voltage above 12.5V ON ON OFF ON OFF OFF
(+/-0.2V)
Solar panel abnormal mode LCD display LED indication LCD backlight
Solar panel weak
Flash ON
Solar panel reverse
connection
Flash Flash
Solar panel over voltage
(> 26.5V)
Flash Flash
Battery abnormal mode LCD display LED indication LCD backlight
Battery disconnected
or less than 3.0V
Flash Flash Flash
Flash
Battery reverse
connection
Flash
Flash
Battery over voltage than
> 17.5V
Flash
Flash
Battery temperature over
65
o
C Flash Flash Flash
Flash
Solar controller abnormal mode LCD display LED indication LCD backlight
The controller over
temperature protection
Flash
ABNORMAL OPERATION MODE
7
OPTIONAL EXTERNAL DEVICE
The controller provides an optional devices (not included P/No. SC1TMP).
Optional external Battery temperature sensor:
As an option, the unit provides a port to connect the external battery temperature sensor;
If the external battery temperature sensor is connected, the unit will optimize the charging
performance subjected to the battery temperature detected and also provide the battery over
temperature protection, in some case, if battery over temperature occurs, the controller will
automatically stop charging.
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SOLAR CONTROLLER SPECIFICATIONS
1 Electrical Parameters
1-1 Rated solar panel amps 10 Max. AMP
1-2 Normal input Solar cell array voltage 15-22 VDC
1-3 Max. solar cell array voltage (output has no load) 25 Max. VDC
1-4 The controller lowest operating voltage (at solar or battery side) 8V Min VDC
1-5 Standby current consumption at night 5 Max mA
1-6 Maximum voltage drop-Solar panel to battery 0.25 Max. VDC
2 Charging characteristics
2-1 Minimum battery start charging voltage 3 Min VDC
2-2 Soft start charging voltage 3-10 +/-0.2 VDC
2-3 Soft start charging current (50% PWM duty) Up to 5 AMP
2-4 Bulk charge voltage 10-14.0 +/-0.2 VDC
2-5 Absorption charging voltage at 25
o
C
– Gel type battery 14.1 +/-0.2 VDC
– AGM type battery (default setting) 14.4 +/-0.2 VDC
– WET type battery 14.7 +/-0.2 VDC
– Calcium type battery 14.9 +/-0.2 VDC
2-6 Absorption transits to Equalizing or Float condition:
– Charging current drops to 1 +/0.1 AMP
– or Absorption Charging timer timed out 4 Hour
2-7 Equalization charging active (min 1 hr)
– Only for WET or Calcium battery
– battery voltage discharged to less than 10 +/-0.2 VDC
– Automatic equalizing Charging periodical 28 Day
2-8 Equalization charging voltage at 25
o
C 15.5 +/-0.2 VDC
2-9 Equalization charging timer timed out 2 Max Hour
2-10 Float charging voltage at 25
o
C 13.6 +/-0.2 VDC
2-11 Voltage control accuracy +/- 1%
2-12 Battery temperature compensation coefficient -24 mV/
o
C
2-13 Temperature compensation range -20~+50
o
C
3 Protection
3-1 Against reverse polarity or short circuit at panel side
3-2 Against reverse polarity or short circuit at battery side
3-3 No reverse current from battery to solar at night
3-4 Over temperature protection during charging 65
o
C
3-5 Transient over voltage protection with TVS or varistor
4 Electrical parts
4-1 Input output terminal M4 terminals
4-2 Temperature sensor port (Press and Release type) DA 250-350 2P
5 Physical Parameters
5-1 Controller material Plastic, Standard ABS
5-2 Power terminal maximum stranded wire size #12AWG stranded – 3 mm²
5-3 Mounting Vertical wall mounting
5-4 IP grade IP22
5-5 Net weight Approx. 250g
6 Environmental characteristics
6-1 Operating temperature -25 ~ 50
o
C
6-2 Storage temperature -40 ~ 85
o
C
6-3 Operating Humidity range 100% no condensation
9
NOTES
10
NOTES
11
NOTES
WARRANTY STATEMENT
Brown & Watson International Pty. Ltd. (“BWI”) of 1500 Ferntree Gully Road, Knoxfield,
Vic., telephone (03) 9730 6000, fax (03) 9730 6050, warrants that all products described
in its current catalogue will under normal use and service be free of failures in material
and workmanship for a period of one (1) year from the date of the original purchase by
the customer as marked on the invoice (see elsewhere for specific warranty period).
This warranty does not cover ordinary wear and tear, abuse, alteration of products or damage
caused by the purchaser.
To make a warranty claim the consumer must deliver the product at their cost to the
original place of purchase or to any other place which may be nominated by either BWI or
the retailer from where the product was bought in order that a warranty assessment may
be performed. The consumer must also deliver the original invoice evidencing the date and
place of purchase together with an explanation in writing as to the nature of the claim.
In the event that the claim is determined to be for a minor failure of the product then BWI
reserves the right to repair or replace it at its discretion. In the event that a major failure is
determined the consumer will be entitled to a replacement or a refund as well as compensation
for any other reasonably foreseeable loss or damage.
This warranty is in addition to any other rights or remedies that the consumer may have
under State or Federal legislation.
IMPORTANT NOTE
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
You are entitled to a replacement or refund for a major failure and compensation for any other
reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced
if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
Distributed by
AUSTRALIA
Brown & Watson International Pty Ltd
Knoxfield, Victoria 3180
Telephone (03) 9730 6000
Facsimile (03) 9730 6050
National Toll Free 1800 113 443
NEW ZEALAND
Narva New Zealand Ltd
22–24 Olive Road
PO Box 12556 Penrose
Auckland, New Zealand
Telephone (09) 525 4575
Facsimile (09) 579 1192
IS354
Issue 1 24.2.17
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